CN213433147U - Plate frame filter press - Google Patents
Plate frame filter press Download PDFInfo
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- CN213433147U CN213433147U CN202022188799.5U CN202022188799U CN213433147U CN 213433147 U CN213433147 U CN 213433147U CN 202022188799 U CN202022188799 U CN 202022188799U CN 213433147 U CN213433147 U CN 213433147U
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- filter press
- frame filter
- compressed air
- sludge
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Abstract
The utility model discloses a plate and frame filter press, including the plate and frame filter press body, with this body coupling of plate and frame filter press just is used for carrying mud to the high-pressure sediment stuff pump of plate and frame filter press body, with this body coupling of plate and frame filter press and be used for the feeding to finish to carry the clear water squeeze pump of clear water in the plate and frame filter press body and with this body coupling of plate and frame filter press and be used for carrying compressed air's air feeder in the plate and frame filter press body after the tympanic membrane squeezes to finish. The utility model discloses a plate and frame filter press possesses advantages such as simple process, degree of automation height, dehydration rate height, can reduce dehydration back mud moisture content, has retrieved the water resource to reduce the hourglass of transportation on the way and spill.
Description
Technical Field
The utility model belongs to the technical field of the pressure filter, concretely relates to plate and frame pressure filter.
Background
The water content of the sludge generated by the converter sludge dewatering system is high and reaches about 35 percent after being squeezed, the dewatered sludge is transported to a stock yard and a storage yard for airing by an automobile, and the dewatered sludge is mixed with other raw materials and sintered after the water content is further reduced. Due to the fact that the water content is high, the muddy water leakage phenomenon is caused in the transportation process, the environment is affected, and the high-water-content sludge needs to be aired to increase the occupied area of a storage yard; meanwhile, a comprehensive utilization project of the iron dust and sludge is newly added in new steel companies, and a technical index of not more than 20% of the water content of the converter sludge is provided. If the water content is higher than 20%, a cylinder drying process (about 1200 ten thousand yuan) with high one-time investment is required; meanwhile, the existing moisture content of the sludge is reduced to 20% from 35%, the sludge treatment capacity can be reduced by 27375 tons every year, and the fuel gas and power consumption cost of the sludge drying process can be reduced by 662.12 ten thousand yuan per year.
The existing plate-and-frame filter press simply presses and dehydrates materials by the pressure of a feeding pump; after feeding is finished, compressed air is used for carrying out compressed air back flushing on the filter cake for 2-3 min by using the partial improved plate-and-frame filter press so as to blow off partial moisture in the filter cake; and a part of improved plate-and-frame filter presses adopt a clean water tympanic membrane for secondary pressing after the feeding is finished to further remove the water of the mud cakes. The three plate-and-frame filter press dehydration modes generally have the problem of higher water content of mud cakes, and the water content of the dehydrated mud is not equal to 32-50 percent and is far from the target that the water content is not higher than 20 percent.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a plate and frame filter press, the purpose reduces the mud moisture content after the dehydration.
In order to realize the purpose, the utility model discloses the technical scheme who takes does: plate and frame filter press, including the plate and frame filter press body, with this body coupling of plate and frame filter press just is used for carrying mud to the high-pressure sediment stuff pump of plate and frame filter press body, with this body coupling of plate and frame filter press and be arranged in the feeding end to carry the clear water to the clear water squeeze pump of clear water in the plate and frame filter press body and with this body coupling of plate and frame filter press and be arranged in the air feeder of carrying compressed air in the plate and frame filter press body after the tympanic membrane squeezes the.
The air supply device comprises a compressed air pipe and a compressed air inlet valve connected with the compressed air pipe, and the compressed air inlet valve is connected with the plate and frame filter press body.
And a sludge feeding valve is arranged between the high-pressure slurry pump and the plate-and-frame filter press body and is connected with a sludge return valve.
The utility model discloses a plate and frame filter press possesses advantages such as simple process, degree of automation height, dehydration rate height, can reduce dehydration back mud moisture content, has retrieved the water resource to reduce the hourglass of transportation on the way and spill.
Drawings
The description includes the following figures, the contents shown are respectively:
fig. 1 is a schematic diagram of a plate-and-frame filter press of the present invention;
labeled as:
1. a sludge concentration tank; 2. a high pressure slurry pump; 3. a sludge feed valve; 4. a plate and frame filter press body; 5. a filter press hydraulic system; 6. a sludge reflux valve; 7. a mud storage hopper; 8. a filtrate tank; 9. a squeezing water tank; 10. a clear water squeezing pump; 11. a squeezing reflux valve; 12. an air compression station; 13. and a compressed air inlet valve.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, for the purpose of helping those skilled in the art to understand more completely, accurately and deeply the conception and technical solution of the present invention, and to facilitate its implementation.
It should be noted that, in the following embodiments, the terms "first", "second" and "third" do not denote absolute differences in structure and/or function, nor do they denote a sequential order of execution, but rather are used for convenience of description.
As shown in fig. 1, the utility model provides a plate and frame filter press, including plate and frame filter press body 4, be connected with plate and frame filter press body 4 and be used for carrying mud to plate and frame filter press body 4's high pressure sediment stuff pump 2, be connected with plate and frame filter press body 4 and be used for the feeding to finish to carry the clear water squeeze pump 10 of clear water in plate and frame filter press body 4 and be connected with plate and frame filter press body 4 and be used for carrying compressed air's air feeder in plate and frame filter press body 4 after the tympanic membrane squeezes to finish, utilize compressed air to blow back mud to mud pit.
Specifically, as shown in fig. 1, a sludge feed valve 3 is arranged between the high-pressure slurry pump 2 and the plate-and-frame filter press body 4, and the sludge feed valve 3 is connected with a sludge return valve 6. The feed inlet of the high-pressure slurry pump 2 is connected with the sludge thickening tank 1 through a first sludge pipe, the discharge outlet of the high-pressure slurry pump 2 is connected with a sludge feed valve 3 through a second sludge pipe, the sludge feed valve 3 is connected with the plate and frame filter press body 4 through a third sludge pipe, the sludge reflux valve 6 is connected with a third sludge pipe through a first sludge reflux pipe, and the sludge reflux valve 6 is connected with the sludge thickening tank 1 through a second sludge reflux pipe. During feeding, the sludge in the sludge concentration tank 1 is conveyed to the plate and frame filter press body 4 through the high-pressure slurry pump 2, so that the sludge is fed and dewatered at the same time, the sludge is squeezed for one time, and the feeding time is about 30-50 min.
As shown in fig. 1, the water inlet of clear water squeeze pump 10 is connected with squeezing water tank 9 through first squeezing the water pipe, and the delivery port of clear water squeeze pump 10 is squeezed the water pipe through the second and is connected with filter press body 4, squeezes the backward flow valve 11 and squeezes water piping connection through first squeezing the wet return and second, squeezes backward flow valve 11 and squeezes the wet return through the second and is connected with the relief pressure valve, and the relief pressure valve squeezes the wet return through the third and squeezes the water tank 9 and be connected. And after the feeding is finished, performing secondary squeezing dehydration on the tympanic membrane of the filter plate by using a clear water squeezing pump 10 (about 1.6MPa), wherein the tympanic membrane squeezing time is about 5-10 min.
As shown in fig. 1, the air supply device includes a compressed air pipe and a compressed air inlet valve 13 connected with the compressed air pipe, and the compressed air inlet valve 13 is connected with the plate-and-frame filter press body 4. The air inlet and the air compression station 12 of compressed air pipe are connected, and the gas outlet and the air inlet of compressed air admission valve 13 of compressed air pipe are connected, and the gas outlet of compressed air admission valve 13 passes through the trachea and is connected with plate and frame filter press body 4. After the tympanic membrane squeezing is finished, carrying out back blowing by adopting compressed air, carrying out back blowing on part of the slurry with higher water content which is squeezed in the middle of a feeding hole in the center of the plate frame to a slurry tank, and carrying out back blowing on the compressed air for about 30 s; after compressed air is blown back, the plate-and-frame filter press is subjected to pressure relief, frame loosening and mud unloading; and preparing the next dewatering stroke after the mud discharging is finished.
The specific working process of the plate-and-frame filter press is as follows:
1. the preparation process comprises the following steps: the filter press hydraulic system 5 compresses and maintains the pressure of the filter plates of the plate frame filter press body 4, and a high-pressure closed space is formed between the filter plates;
2. the feeding process comprises the following steps: and (3) opening a sludge feeding valve and a squeezing water return valve, closing a sludge return valve and a compression air valve, starting a high-pressure slurry pump 2 (the pressure is about 0.8MPa), lifting and pressurizing the sludge in the concentration tank to be conveyed to a plate-and-frame filter press body 4, and discharging filtrate water to a filtrate tank 8 in the feeding and secondary squeezing processes. The feeding process is also a primary squeezing process, and the feeding time is about 30-50 min;
3. and (3) secondary squeezing process: after the feeding is finished, stopping the high-pressure slurry pump 2, closing the sludge feeding valve 3, closing the squeezing reflux valve 11, starting the clear water squeezing pump 10 (the pressure is about 1.6MPa), filling the high-pressure clear water into the filter plate diaphragm of the plate-and-frame filter press body 4, and performing secondary drum membrane squeezing and dewatering on the mud cakes between the filter plates. The secondary pressing time of the tympanic membrane is about 5-10 min;
4. compressed air back blowing process: after the tympanic membrane secondary pressing is finished, the clear water pressing pump 10 is stopped, the pressing reflux valve 11, the sludge reflux valve 6 and the compressed air inlet valve 13 are opened, the compressed air provided by the air compression station 12 is utilized to carry out back flushing on the water-containing sludge in the central feeding hole of the plate and frame filter press body 4, and the back flushing sludge returns to the sludge concentration tank 1. Compressed air is blown back for about 30 s.
5. And (3) mud discharging process: after the compressed air is blown back, the hydraulic system 5 of the filter press automatically releases the pressure, the mud is discharged by loosening the frame pulling plate one by one after the pressure is released, the mud cake falls into the mud bucket for temporary storage, and then the mud cake is transported to the sintering and rotary hearth furnace system by an automobile for direct recycling. And after the sludge is discharged, entering a standby state and automatically performing the next sludge dewatering period.
The invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-described manner. Various insubstantial improvements are made by adopting the method conception and the technical proposal of the utility model; or without improvement, the above conception and technical solution of the present invention can be directly applied to other occasions, all within the protection scope of the present invention.
Claims (3)
1. Plate and frame filter press, including the plate and frame filter press body, its characterized in that: still include with this body coupling of plate and frame filter press and be used for carrying the high pressure sediment stuff pump to the plate and frame filter press body with this body coupling of plate and frame filter press and be arranged in the clear water that feeds and finish to the plate and frame filter press body and carry the air feeder of compressed air in the plate and frame filter press body with this body coupling of plate and frame filter press and be used for pressing and finish the back at the tympanic membrane and carry compressed air.
2. The plate and frame filter press of claim 1, wherein: the air supply device comprises a compressed air pipe and a compressed air inlet valve connected with the compressed air pipe, and the compressed air inlet valve is connected with the plate and frame filter press body.
3. The plate and frame filter press of claim 1 or 2, wherein: and a sludge feeding valve is arranged between the high-pressure slurry pump and the plate-and-frame filter press body and is connected with a sludge return valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022188799.5U CN213433147U (en) | 2020-09-29 | 2020-09-29 | Plate frame filter press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022188799.5U CN213433147U (en) | 2020-09-29 | 2020-09-29 | Plate frame filter press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213433147U true CN213433147U (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022188799.5U Active CN213433147U (en) | 2020-09-29 | 2020-09-29 | Plate frame filter press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213433147U (en) |
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2020
- 2020-09-29 CN CN202022188799.5U patent/CN213433147U/en active Active
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