CN218530002U - Slurry thickening device - Google Patents
Slurry thickening device Download PDFInfo
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- CN218530002U CN218530002U CN202223012270.3U CN202223012270U CN218530002U CN 218530002 U CN218530002 U CN 218530002U CN 202223012270 U CN202223012270 U CN 202223012270U CN 218530002 U CN218530002 U CN 218530002U
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Abstract
The utility model discloses a slurry thickening device, which comprises a black liquor tank for storing dilute phase solution, wherein the black liquor tank is connected with a thickener, the thickener comprises a filtering component, and the dilute phase solution is filtered and separated by the filtering component; the thickener is connected with a filtrate tank and a concentrated solution tank and is respectively used for receiving filtrate and concentrated solution after filtration and separation. The utility model discloses a thick liquid thickening device can concentrate the rare phase material of hierarchical back overflow of grading plant to through the concentration improvement with the rare phase material, in order to recycle after reaching recycle's concentration, avoided the waste of the energy, fully reach resource recovery's purpose, also reached the purpose of environmental protection.
Description
Technical Field
The utility model relates to a coal slurry preparation equipment technical field especially relates to a thick liquid thickening device.
Background
The coal water slurry is an oil-substituted coal-based fluid fuel which is low in pollution, high in efficiency and capable of being conveyed by a pipeline, is obtained by physically processing about 65% of coal, 34% of water and 1% of additives, is wide in application in view of excellent practical value, and in the process of producing and preparing the coal water slurry, after the coal water slurry is graded by grading equipment, high-concentration materials enter a downstream system for continuous utilization, however, the concentration of a residual dilute phase solution after grading is too low to reach the standard of continuous recycling, so that the waste of energy is caused by direct discarding, and the environment is also polluted.
In view of this, the utility model discloses it is special.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model aims to provide a thick liquid thickening device, this thick liquid thickening device can concentrate the rare phase material of hierarchical back overflow of grading plant to through the concentration improvement with the rare phase material, reach behind the concentration of recycle in order to recycle, avoided the waste of the energy, fully reach resource recovery's purpose, also reached the purpose of environmental protection.
In order to achieve the above purpose, the utility model discloses technical scheme as follows:
the utility model provides a slurry thickening device, which comprises a black liquor tank for storing dilute phase solution, wherein the black liquor tank is connected with a thickener, the thickener comprises a filtering component, and the dilute phase solution is filtered and separated by the filtering component; the thickener is connected with a filtrate tank and a concentrated solution tank and is respectively used for receiving filtrate and concentrated solution after filtration and separation.
Preferably, as a further implementable solution, the thickener comprises a thickening tank, and the filter assembly comprises a plurality of filter rods arranged in the thickening tank, the filter rods being fixed in the thickening tank by a support framework.
Preferably, as a further implementable scheme, the filter rod is of a hollow structure and respectively comprises an opening end and a closed end which are positioned at the two sides of the top and the bottom, and a liquid outlet for discharging filtrate is arranged on the opening end.
Preferably, as a further implementable scheme, a filtrate pipe is connected between the filtrate tank and the concentration tank, and the liquid outlet is connected with the filtrate pipe in a converging manner through a branch pipe.
Preferably, as a further implementable scheme, a black liquid pump is arranged between the black liquid tank and the concentration tank, the concentration tank is connected with a circulating pump through a circulating pipeline, a concentrated liquid pipeline is connected between the circulating pipeline and the concentrated liquid tank, and an online concentration meter is arranged on the circulating pipeline.
Preferably, as a further implementable solution, the concentrate tank is connected with a concentrate output pipeline and a concentrate pump, and the concentrate output pipeline is connected to the bottom of the concentrate tank, connected with the concentrate pump, and used for outputting the concentrate to the downstream through the concentrate pump.
Preferably, as a further implementable scheme, the filtrate tank is connected with a filtrate output pipeline and a filtrate pump, and the filtrate output pipeline is connected to the bottom of the filtrate tank and connected with the filtrate pump, and is used for outputting the filtrate downstream through the filtrate pump.
Preferably, as a further implementable scheme, the concentration tank is connected with a compressed gas pipeline, the compressed gas pipeline comprises a pressurized gas branch and a back-blowing gas branch, the pressurized gas branch is connected to the top of the concentration tank and communicated with an inner cavity of the concentration tank, and the back-blowing gas branch is connected with the filtrate pipe.
Preferably, as a further implementable scheme, the top of the concentration tank is connected with an emptying pipe, the bottom of the concentration tank is connected with a liquid discharge pipe, and the emptying pipe and the liquid discharge pipe are joined and then connected with the black liquid tank.
The utility model discloses a thick liquid thickening device has realized utilizing the recycle of dilute phase solution, utilizes pressure differential filtration to filter out the lower filtrating (< 1%) of solid content through the filter assembly who sets up, and the concentrated liquid (about 50%) that filters out send into the concentrated cistern and send into the next procedure as the product.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of the slurry thickening apparatus of the present invention.
In the figure, 1, a thickener, 2, a black liquor tank, 3, a filtrate tank, 4, a concentrate tank, 5, a black liquor pump, 6, a circulating pump, 7, a concentrate pipeline, 8, an online concentration meter, 9, a concentrate output pipeline, 10, a filtrate output pipeline, 11, a filtrate pump, 12, a circulating pipeline, 13, a compressed gas pipeline, 15, a pressurized gas branch and 16, a back-blowing gas branch are arranged;
20 concentration tank, 21 filter rod, 22 support frame, 23 filtrate pipe, 24 liquid outlet, 25 emptying pipe and 26 liquid outlet pipe.
Detailed Description
The technical solutions of the present invention will be described more clearly and completely below with reference to the accompanying drawings and detailed description, but those skilled in the art will understand that the following described embodiments are some, but not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be considered as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention. The examples, in which specific conditions are not specified, were carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to clarify the technical solution of the present invention, the following description is made in the form of specific embodiments.
Examples
Referring to fig. 1, the utility model provides a thick liquid thickening device, including the black liquor groove 2 that is used for depositing the dilute phase solution again, the remaining dilute phase solution carries out the deposit through black liquor groove 2 after the grading equipment of preorder workshop section is hierarchical. The black liquid tank 2 is connected with a thickener 1, the thickener 1 is respectively connected with a filtrate tank 3 and a concentrated liquid tank 4, the thickener 1 comprises a filtering component, the filtering component filters, separates and concentrates dilute phase solution to achieve the thickening effect, separates filtrate and concentrated liquid, the filtrate enters a subsequent working section through the filtrate tank 3, and the part of liquid can backwash process equipment to achieve the purpose of cleaning the filtering component. The concentrated solution is subsequently recycled through the concentrated solution tank 4, so that the energy utilization effect is achieved.
The major structure of the thickener 1 in this embodiment includes a thickening tank 20, a filter assembly is specifically installed in the thickening tank 20, the filter assembly is a plurality of filter rods 21 arranged in the thickening tank 20, the filter rods 21 are supported and fixed in the thickening tank 20 through a support framework 22, the support framework 22 adopts a cage structure, and the installation stability of the filter assembly in the thickening tank 20 is effectively ensured.
The filter rod 21 is of a hollow structure, the top of the filter rod is an open end, the bottom of the open end is a closed end, a liquid outlet 24 for discharging filtrate is further arranged on the open end, the filtrate enters from the outside of the filter rod 21, so that the dilute filtrate passes through the filter rod 21 and enters an inner cavity of the filter rod 21, and solid particles are intercepted outside the filter rod 21 and are retained in the concentration tank 20 to form concentrated solution. The form of the cotton or filtration membrane of optional filtration of filter rod 21 in this embodiment, the quantity of filter rod 21, material, filter area's design can be adjusted according to different work condition and throughput's needs, and the dilute phase solution passes through behind the filtering component, makes the liquid concentration who is detained in concentrator bowl 20 obtain effectively promoting to form the concentrate that reaches recycle concentration, retrieve the material fully and recycle.
The concentration tank 20 is connected with a compressed gas pipeline 14, the compressed gas pipeline 14 comprises a pressurized gas branch 15 and a blowback gas branch 16, the pressurized gas pipeline is used for forming pressure in the concentration tank 20, forming system pressure difference between the concentration tank 20 and the filtrate tank 3 and promoting normal filtration of the filter assembly, the blowback gas branch 16 is used for blowback of the filter rod 21 and blowback of solid particles adsorbed on the outer side of the filter rod 21 into the concentrated solution to maintain normal filtration pressure difference.
A filtrate pipe 23 is connected between the filtrate tank 3 and the concentration tank 20, the liquid outlet 24 is connected with the filtrate pipe 23 by branch pipes, so that the filtrate in each filter rod 21 is led out from the liquid outlet 24, passes through the branch pipes corresponding to the liquid outlets 24 one by one, is converged in the filtrate pipe 23, and further enters the filtrate tank 3 through the filtrate pipe 23. The pressurized gas branch 15 is connected to the top of the concentration tank 20 and communicated with the inner cavity of the concentration tank 20, and the blowback gas branch 16 is connected with the filtrate pipe 23, so as to ensure the maintenance of the pressure in the concentration tank 20 and realize the normal blowback function through the connection of the pipelines.
In addition, be provided with blow-down pipe 25 at the top of concentrator bowl 20, the bottom of concentrator bowl 20 is connected with fluid-discharge tube 26, blow-down pipe 25 meets with black liquor tank 2 after converging with fluid-discharge tube 26, because there is atmospheric pressure's existence in the concentrator bowl 20, when needing to overhaul filter assembly or change, need carry out the pressure release to the concentrator bowl 20 through blow-down pipe 25, and simultaneously, the function of fluid-discharge tube 26 mainly embodies, when needing to overhaul filter assembly in the concentrator bowl 20 or change, still need empty the material in the concentrator bowl 20, the black liquor tank 2 that returns the raw materials and reserve is carried through fluid-discharge tube 26 to the dregs after the clearance.
For convenient maintenance, the concentration tank 20 is provided with a horizontal middle opening structure, so that the maintenance and replacement of the filtering component are facilitated. Preferably, the horizontal split structure comprises a manhole arranged on the shell of the concentration tank 20, so that an overhaul person can conveniently enter the inner cavity of the concentration tank 20, and the filter assembly is convenient to maintain and replace.
From the perspective of facilitating raw material transportation, a black liquor pump 5 for transporting dilute-phase solution is arranged between the black liquor tank 2 and the concentration tank 20, and the dilute-phase solution is transported from the black liquor tank 2 to the concentration tank 20 through the black liquor pump 5.
The concentration tank 20 is connected with a circulating pump 6 through a circulating pipeline 13, a concentrated solution pipeline 7 is connected between the circulating pipeline 13 and the concentrated solution tank 4, and an online concentration meter 8 is arranged on the circulating pipeline 13.
In this embodiment, the concentrated liquid is delivered through a concentrated liquid output pipe 9 connected to the concentrated liquid tank 4 and a concentrated liquid pump 10, and the concentrated liquid output pipe 9 is connected to the bottom of the concentrated liquid tank 4 and connected to the concentrated liquid pump 10 for outputting the concentrated liquid downstream through the concentrated liquid pump 10.
In this embodiment, the filtrate is delivered through a filtrate output pipe 11 connected to the filtrate tank 3 and a filtrate pump 12, and the filtrate output pipe 11 is connected to the bottom of the filtrate tank 3 and connected to the filtrate pump 12, and is used for outputting the filtrate downstream through the filtrate pump 12.
In addition, a backwashing pipeline and a backwashing pump are connected to the filtrate output pipeline 11, so that the outlet water of the backwashing pump is led into the filtrate pipe 23 to backwash the filter rod 21, so as to periodically clean solid particles blocked on the filter rod 21, and prolong the service life of the filter rod 21. The operation of back flushing and back flushing can be judged by a differential pressure gauge arranged in front of and behind the filtering component, so as to be beneficial to the normal operation of the filtering rod 21.
The utility model discloses the filtrating and the concentrate homoenergetic that well warp formed after filtering obtain effectual utilization, can not cause the waste of the energy.
In order to improve the stability of the device, flow control valves are arranged on all pipelines of the device so as to ensure the liquid level of the trough and maintain the continuous operation of the system. The black liquid tank 2 and the concentrated liquid tank 4 are both provided with stirrers to ensure the materials to be homogenized and dispersed.
The whole device is operated and controlled by a PLC control system, adopts a full-sealing structure, has no leakage point, and is simple, reliable and practical.
Finally, it is to be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principles of the present invention, and the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention, and these changes and modifications are to be considered within the scope of the invention.
Claims (9)
1. A slurry thickening device comprises a black liquor tank for storing dilute-phase solution, and is characterized in that the black liquor tank is connected with a thickener, the thickener comprises a filtering component, and the dilute-phase solution is filtered and separated by the filtering component; the thickener is connected with a filtrate tank and a concentrated solution tank and is respectively used for receiving the filtrate and the concentrated solution after filtration and separation.
2. The slurry thickening apparatus of claim 1, wherein the thickener includes a thickening tank, and the filter assembly includes a plurality of filter rods disposed within the thickening tank, the filter rods being secured within the thickening tank by a support framework.
3. The slurry thickening apparatus according to claim 2, wherein the filter rod is a hollow structure and comprises an open end and a closed end respectively located at the top and the bottom, and the open end is provided with a liquid outlet for discharging the filtrate.
4. The slurry thickening apparatus according to claim 3, wherein a filtrate pipe is connected between said filtrate tank and said thickening tank, and said liquid outlet is joined to said filtrate pipe by a branch pipe.
5. The slurry thickening apparatus according to claim 4, wherein a black liquor pump is provided between the black liquor tank and the concentration tank, the concentration tank is connected with a circulation pump through a circulation pipe, a concentrate pipe is connected between the circulation pipe and the concentration tank, and an online concentration meter is provided on the circulation pipe.
6. The slurry thickener of claim 5 wherein a concentrate outlet conduit and a concentrate pump are connected to said concentrate tank, said concentrate outlet conduit being connected to a bottom of said concentrate tank and to said concentrate pump for downstream delivery of concentrate by said concentrate pump.
7. The slurry thickener of claim 5 wherein a filtrate outlet conduit and a filtrate pump are connected to said filtrate tank, said filtrate outlet conduit being connected to a bottom of said filtrate tank and to said filtrate pump for outputting filtrate downstream through said filtrate pump.
8. The slurry thickening apparatus according to claim 6, wherein a compressed gas pipeline is connected to the thickening tank, the compressed gas pipeline comprises a pressurized gas branch and a blowback gas branch, the pressurized gas branch is connected to the top of the thickening tank and communicated with the inner cavity of the thickening tank, and the blowback gas branch is connected to the filtrate pipe.
9. The slurry thickener according to claim 7, wherein a vent pipe is connected to the top of said thickener, and a drain pipe is connected to the bottom of said thickener, and said vent pipe and said drain pipe are joined and then connected to said black liquor tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223012270.3U CN218530002U (en) | 2022-11-11 | 2022-11-11 | Slurry thickening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223012270.3U CN218530002U (en) | 2022-11-11 | 2022-11-11 | Slurry thickening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218530002U true CN218530002U (en) | 2023-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223012270.3U Active CN218530002U (en) | 2022-11-11 | 2022-11-11 | Slurry thickening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218530002U (en) |
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2022
- 2022-11-11 CN CN202223012270.3U patent/CN218530002U/en active Active
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