CN217854748U - Filter pressing system of ultra-clean coal slurry - Google Patents
Filter pressing system of ultra-clean coal slurry Download PDFInfo
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- CN217854748U CN217854748U CN202221838991.7U CN202221838991U CN217854748U CN 217854748 U CN217854748 U CN 217854748U CN 202221838991 U CN202221838991 U CN 202221838991U CN 217854748 U CN217854748 U CN 217854748U
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Abstract
The application discloses filter-pressing system of super clean coal slurry liquid, including super clean coal slurry liquid storage device and the feed pump that utilizes the pipeline intercommunication, the other end of feed pump utilizes tee bend device intercommunication to the pressure filter, the other end of tee bend device utilizes backflow pipeline intercommunication to super clean coal slurry liquid storage device utilizes the filter-pressing system of above-mentioned super clean coal slurry liquid, can reduce the water content of filter cake, and the filter cake is not tacky after the filter-pressing, and the filter cloth need not artifical the washing, avoids the deposit in the pipeline.
Description
Technical Field
The utility model belongs to the technical field of energy equipment, especially, relate to a filter-pressing system of super clean coal slurry liquid.
Background
With the increasing demand of industrial production for solid-liquid separation operation, in order to adapt to production operation in various fields, the types of filter presses are increasing, and common membrane filter presses, plate-and-frame filter presses, chamber filter presses and the like are available. At present, diaphragm plate-and-frame filter presses are widely applied to treatment of sludge in urban sewage treatment plants, after sludge is fed into the diaphragm plate-and-frame filter presses, high-pressure water is injected into diaphragm plates of the filter presses by using diaphragm press pumps, the sludge is strongly squeezed and dewatered by using diaphragm tension, filtrate is discharged through filter cloth, and solid matters are blocked by the filter cloth to form dry matters with low water content.
Along with the improvement of mechanization degree, the dehydration problem of fine coal particles causes great difficulty in coal slime dehydration of a coal preparation plant, and fine coal dehydration equipment applied to the coal preparation industry at present comprises a box filter press, a pressure filter, a sedimentation filter type centrifugal machine and the like, wherein the box filter press has the advantage of low unit energy consumption, but the processing capacity is low, the water content of a product is high, the processing capacity of the pressure filter is large, but the energy consumption is high, the overhaul capacity is large, and in addition, filtrate processed by the sedimentation filter is not clear and cannot be used as final dehydration equipment. In the existing municipal sludge filter-pressing treatment process, an inorganic flocculant can be added, the mixture is stirred for 30m minutes, then the mixture is squeezed and dehydrated, the fine coal slime with the granularity is subjected to filter-pressing treatment, the coal slime is pumped into a closed filter chamber through a feeding pump, the filtration of filtrate is realized through the power of the coal slime pump, the pressure difference between two sides of filter cloth is continuously reduced along with the thickening of the filter cake, and the feeding is stopped when the pressure generated by the feeding pump is balanced with the filtering resistance of the filter cake.
The ultra-clean coal is clean coal with ash content not exceeding 1% after chemical treatment of raw coal, is micronized into slurry with average particle size of 10 microns, is subjected to filter pressing by filter pressing equipment to obtain filter cake with solid content of 47%, and is processed with additives in proportion into ultra-clean coal slurry. The existing filter pressing equipment has a good filter pressing effect on coal slurry and coal slurry with conventional particle sizes, but has the defects of high water content of filter cakes, low solid content and sticky filter cakes after the ultra-clean coal slurry with fine particle sizes is filter-pressed, the water content of the filter cakes after the filter of a box filter press is about 18 percent, the water content of the filter cakes after the filter of a plate-and-frame filter press is about 20 percent, and the water content of the filter cakes after the filter of a membrane filter press is 12 percent.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a filter-pressing system of super clean coal slurry liquid can reduce the water content of filter cake, and the filter cake is not tacky after the filter-pressing, and the filter cloth need not artifical the washing, avoids the deposit in the pipeline.
The utility model provides a pair of filter-pressing system of super clean coal slurry liquid is including super clean coal slurry liquid storage device and the feed pump that utilizes the pipeline intercommunication, the other end of feed pump utilizes the tee bend device to communicate to the pressure filter, the other end of tee bend device utilizes backflow pipeline to communicate to super clean coal slurry liquid storage device.
Preferably, in the filter-pressing system for ultra-clean coal slurry, a pressure gauge is further installed on a pipeline between the three-way device and the filter press.
Preferably, in the filter pressing system for ultra-clean coal slurry, a stirring device is further installed in the ultra-clean coal slurry storage device.
Preferably, in the filter pressing system for ultra-clean coal slurry, the feed pump is a slurry pump.
Preferably, in the above ultra-clean coal slurry pressure filtration system, the pressure filter is a plate and frame pressure filter.
According to the above description, the utility model provides an above-mentioned filter-pressing system of super clean coal slurry liquid, owing to including super clean coal slurry liquid storage device and the feed pump that utilizes the pipeline intercommunication, the other end of feed pump utilizes the tee bend device to communicate to the pressure filter, the other end of tee bend device utilizes the backflow pipeline to communicate to super clean coal slurry liquid storage device, this kind of backflow pipeline is favorable to the control of filter-pressing in-process pressure, reduces the pulse to can reduce the water content of filter cake, the filter cake is not sticky after the filter-pressing, and the filter cloth need not artifical the washing, avoids the deposit in the pipeline.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic diagram of an embodiment of a filter pressing system for ultra-clean coal slurry according to the present invention.
Detailed Description
The core of the utility model is to provide a filter-pressing system of super clean slurry, can reduce the water content of filter cake, the filter cake is not sticky after the filter-pressing, and the filter cloth need not artifical the washing, avoids the deposit in the pipeline.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a pair of filter-pressing system's of super clean coal slurry liquid embodiment is shown in figure 1, and figure 1 does the utility model provides a pair of filter-pressing system's of super clean coal slurry liquid embodiment's schematic diagram, this system include super clean coal slurry liquid storage device 1 and feed pump 2 that utilize the pipeline intercommunication, and feed pump 2's the other end utilizes tee bend device 3 to communicate to pressure filter 4, and tee bend device 3's the other end utilizes backflow pipeline 5 to communicate to super clean coal slurry liquid storage device 1.
It should be noted that the system is characterized by a return line 5, which can release the pressure back to the ultra-clean coal slurry storage device 1 when the pressure between the feed pump 2 and the filter press 4 is too high, so as to maintain the pressure stability during the filter press process and minimize the pulse, thereby reducing the viscosity of the filter cake.
According to the above description, the utility model provides an in the embodiment of the filter-pressing system of above-mentioned super clean coal slurry liquid, because including super clean coal slurry liquid storage device and the feed pump that utilizes the pipeline intercommunication, the other end of feed pump utilizes tee bend device to communicate to the pressure filter, tee bend device's the other end utilizes backflow pipeline to communicate to super clean coal slurry liquid storage device, this kind of backflow pipeline is favorable to the control of filter-pressing in-process pressure, reduce the pulse, thereby can reduce the water content of filter cake, the filter cake is not sticky after the filter-pressing, the filter cloth need not the manual cleaning, avoid the deposit in the pipeline.
In a specific embodiment of the filter pressing system of the ultra-clean coal slurry, the pressure gauge 6 can be further installed on the pipeline between the three-way device 3 and the filter press 4, so that the pressure on the pipeline can be detected in real time, the three-way device 3 can be conveniently adjusted to be opened and closed according to the seen pressure by an operator, when the pressure is large, the left channel is opened to release the pressure, when the pressure is released to a proper range, the left channel is closed, and therefore the filter pressing system is more convenient to operate and has more pertinence.
In another specific embodiment of the filter-pressing system of the ultra-clean coal slurry, a stirring device, specifically a low-speed stirrer, can be further installed in the ultra-clean coal slurry storage device 1, so that the ultra-clean coal slurry can be better mixed, and each position of a filter cake obtained by subsequent filter pressing is more uniform.
In another embodiment of the above ultra-clean slurry filter-pressing system, the feed pump may preferably be a slurry pump, which can increase the energy of the ultra-clean slurry by centrifugal force, and can ensure stable output pressure and operation, large flow regulation range and small pulse, thereby ensuring more stable pressure of the ultra-clean slurry during the transportation process. Of course, other types of feeding pumps can be selected according to actual needs, and are not limited herein.
In a preferred embodiment of the filter pressing system for ultra-clean coal slurry, the filter press may be a plate and frame filter press, which is more effective for separating such a viscous and fine material as ultra-clean coal slurry.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The filter pressing system of the ultra-clean coal slurry is characterized by comprising an ultra-clean coal slurry storage device and a feeding pump which are communicated through a pipeline, wherein the other end of the feeding pump is communicated to a filter press through a three-way device, and the other end of the three-way device is communicated to the ultra-clean coal slurry storage device through a return pipeline.
2. A filter-pressing system of ultra-clean coal slurry as claimed in claim 1, wherein a pressure gauge is further installed on the pipe between the three-way device and the filter press.
3. A filter-pressing system for ultra-clean coal slurry as claimed in claim 1, wherein a stirring device is further installed in the ultra-clean coal slurry storage device.
4. A pressure filtration system of an ultra clean coal slurry as claimed in claim 1 wherein said feed pump is a slurry pump.
5. The system for filter-pressing of an ultra-clean coal slurry as claimed in claim 1, wherein the filter press is a plate and frame filter press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221838991.7U CN217854748U (en) | 2022-07-15 | 2022-07-15 | Filter pressing system of ultra-clean coal slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221838991.7U CN217854748U (en) | 2022-07-15 | 2022-07-15 | Filter pressing system of ultra-clean coal slurry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217854748U true CN217854748U (en) | 2022-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221838991.7U Active CN217854748U (en) | 2022-07-15 | 2022-07-15 | Filter pressing system of ultra-clean coal slurry |
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| CN (1) | CN217854748U (en) |
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2022
- 2022-07-15 CN CN202221838991.7U patent/CN217854748U/en active Active
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