CN213085893U - Water coal slurry waste slurry recycling device - Google Patents
Water coal slurry waste slurry recycling device Download PDFInfo
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- CN213085893U CN213085893U CN202021924924.8U CN202021924924U CN213085893U CN 213085893 U CN213085893 U CN 213085893U CN 202021924924 U CN202021924924 U CN 202021924924U CN 213085893 U CN213085893 U CN 213085893U
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Abstract
The utility model relates to a device for recycling waste slurry of coal water slurry; the system comprises a coal water slurry grinding and pulping part, wherein the coal water slurry grinding and pulping part comprises a coal grinding water tank, the coal grinding water tank is connected with a gasification unit sequentially through a coal grinding water pump, a coal grinding unit, a coal slurry tank and a coal slurry pump, a waste slurry collecting part is arranged at the bottom of the coal water slurry grinding and pulping part, and the waste slurry collecting part is respectively connected with a coal grinding water tank and a flushing water tank in the waste slurry collecting part through a waste coal slurry treatment part; the waste slurry collecting part is connected with a hydrophobic surfactant storage tank; has the advantages of simple structure, water saving, environmental protection, convenient operation and high recovery rate.
Description
Technical Field
The utility model relates to a coal slurry waste slurry retrieves technical field, specifically is a coal slurry waste slurry recycle device.
Background
The coal water slurry grinding and pulping unit comprises a coal grinding unit, a grinder, a coal slurry storage unit, a coal slurry tank, a coal slurry conveying unit, a coal slurry pump and a pipeline. The waste slurry in the coal pulping process comprises coal slurry with unqualified granularity or viscosity in the coal pulping process and leaked coal slurry of a mill, and the coal slurry cannot be sent into a gasification unit for use and can only be discharged into a trench; residual coal slurry in the equipment is remained when the mill or the coal slurry pump is overhauled; overflow coal slurry of the coal slurry storage unit; fourthly, under the fault state, the coal slurry flows into the trench when the equipment or the pipeline is washed; fifthly, discharging coal slurry from a leaching port during normal production sampling analysis or observation; sixthly, discharging the coal slurry outside the gasification unit. The treatment method of the waste slurry of the coal water slurry comprises two treatment modes: the method comprises the following steps of arranging an open slag pool outside a coal grinding workshop, receiving waste slurry from a coal grinding workshop section and a gasification workshop section trench, naturally settling and separating, transferring settled coal to the ground through a crane grab bucket, naturally drying and recycling. The long-time open of useless thick liquid is placed in the processing procedure, and the surrounding environment peculiar smell is comparatively serious, and the useless thick liquid very easily silts up and hardens, and the grab bucket is handled the difficulty. The underground tank is provided with a stirrer and a slurry pump, and the underground tank is used for sending the waste slurry back to the coal grinding and pulping process.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a can realize continuous operation or discontinuous operation, be applicable to the wet-type coal grinding process of the outer useless thick liquid of arranging in indefinite time, have simple structure, water conservation, environmental protection, simple operation and the high coal slurry useless thick liquid recycle device of rate of recovery.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a recycling device for waste slurry of coal water slurry comprises a coal water slurry grinding and pulping part, wherein the coal water slurry grinding and pulping part comprises a coal grinding water tank, the coal grinding water tank is connected with a gasification unit through a coal grinding water pump, a coal grinding unit, a coal slurry tank and a coal slurry pump in sequence, a waste slurry collecting part is arranged at the bottom of the coal water slurry grinding and pulping part, and the waste slurry collecting part is respectively connected with a flushing water tank in the coal grinding water tank and the waste slurry collecting part through a waste coal slurry treatment part; the waste slurry collecting part is connected with a hydrophobic surfactant storage tank.
Preferably, the waste slurry collecting part comprises a washing water tank, and the washing water tank is connected with the trench through a washing water pump and a first tee joint; the third end of the first tee is communicated with a hydrophobic surfactant storage tank.
Preferably, the waste coal slurry treatment part comprises a rotary vibration sieve connected with the bottom of one side of the trench, and a solid phase outlet of the rotary vibration sieve is connected with the weighing bucket elevator; the liquid phase outlet of the rotary vibration sieve is connected with a washing water circulating pump through an underground water tank, the outlet of the washing water circulating pump is respectively connected with a washing water tank and a coal grinding water supplementing valve, and the coal grinding water supplementing valve is connected with a coal grinding water tank.
Preferably, a second tee joint is arranged between the coal grinding water tank and the coal grinding water pump, the third end of the second tee joint is communicated with a washing water replenishing port of the washing water tank through a washing water replenishing valve, and a top alkali liquor inlet of the washing water tank is connected with the alkali tank.
Preferably, a third tee joint is arranged between the coal grinding unit and the coal slurry tank, and the third end of the third tee joint is communicated with the trench through a first waste slurry collecting pipeline with a first waste coal slurry discharge valve.
Preferably, one side of the upper part of the coal slurry tank is provided with an overflow pipeline communicated with the trench, and the overflow pipeline is provided with a coal slurry overflow valve.
Preferably, a second waste coal slurry discharge valve is arranged between the coal slurry pump and the gasification unit, the second waste coal slurry discharge valve is a guide shower valve, and the guide shower valve is communicated with the trench through a second waste coal slurry collecting pipeline with the second waste coal slurry discharge valve.
Preferably, a sewage pipeline connected with a trench is arranged at the bottom of the gasification unit, and a third waste coal slurry discharge valve is arranged on the sewage pipeline.
Preferably, a fifth tee joint and a second flushing water valve are arranged between the first tee joint and the trench; and a third end of the fifth tee joint is provided with a main flushing pipeline with a first flushing water valve, and the main flushing pipeline is respectively connected with the first waste slurry collecting pipeline, the overflow pipeline, the second waste slurry collecting pipeline and the sewage discharge pipeline.
Preferably, the flushing main pipeline is connected with a first waste slurry collecting pipeline between the first waste coal slurry discharge valve and the trench through a branch flushing pipeline with a third flushing water valve; the main flushing pipeline is connected with an overflow pipeline between the coal slurry overflow valve and the trench through a branch flushing pipeline with a fourth flushing water valve; the main flushing pipeline is connected with a second waste slurry collecting pipeline between a second waste coal slurry discharge valve and the trench through a branch flushing pipeline with a fifth flushing water valve; the flushing main pipeline is connected with a sewage discharge pipeline between the third waste coal slurry discharge valve and the trench through a branch flushing pipeline with a sixth flushing water valve.
The utility model discloses can realize continuous operation or discontinuous operation, be applicable to the wet-type coal grinding process of the outer useless thick liquid of arranging in indefinite time, have simple structure, water conservation, environmental protection, simple operation and the high advantage of rate of recovery.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments 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 belong to the protection scope of the present invention.
Referring to fig. 1: the utility model relates to a water coal slurry waste slurry recycle device, this recycle device includes water coal slurry mill coal slurrying portion, this water coal slurry mill coal slurrying portion includes mill coal basin 1, mill coal basin 1 loops through mill coal water pump 2, mill coal unit 5, coal slurry groove 8 and coal slurry pump 9 and links to each other with gasification unit 11, the bottom of water coal slurry mill coal slurrying portion is equipped with waste slurry collection portion, and waste slurry collection portion links to each other with wash basin 21 in mill coal basin 1 and the waste slurry collection portion respectively through waste coal slurry treatment portion; the waste slurry collecting portion is connected to a hydrophobic surfactant storage tank 23.
Further, the waste slurry collecting part comprises a washing water tank 21, and the washing water tank 21 is connected with a trench 25 through a washing water pump 22 and a first tee 24; the third end of the first tee joint 24 is communicated with a hydrophobic surfactant storage tank 23.
Further, the waste coal slurry treatment part comprises a rotary vibration sieve 14 connected with the bottom of one side of the trench 25, and a solid phase outlet of the rotary vibration sieve 14 is connected with a weighing bucket elevator 15; the liquid phase outlet of the rotary vibration sieve 14 is connected with a washing water circulating pump 18 through an underground water tank 17, the outlet of the washing water circulating pump 18 is respectively connected with a washing water tank 21 and a coal grinding water supplementing valve 26, and the coal grinding water supplementing valve 26 is connected with the coal grinding water tank 1.
Further, a second tee 3 is arranged between the coal grinding water tank 1 and the coal grinding water pump 2, the third end of the second tee 3 is communicated with a washing water replenishing opening of the washing water tank 21 through a washing water replenishing valve 4, and a top alkali liquor inlet of the washing water tank 21 is connected with an alkali tank 20.
Further, a third tee joint 6 is arranged between the coal grinding unit 5 and the coal slurry groove 8, and the third end of the third tee joint 6 is communicated with a trench 25 through a first waste slurry collecting pipeline with a first waste coal slurry discharge valve 7.
Furthermore, an overflow pipeline communicated with the trench 25 is arranged on one side of the upper part of the coal slurry tank 8, and a coal slurry overflow valve 32 is arranged on the overflow pipeline.
Further, a second waste coal slurry discharge valve 10 is arranged between the coal slurry pump 9 and the gasification unit 11, the second waste coal slurry discharge valve 10 is a pilot valve, and the pilot valve is communicated with the trench 25 through a second waste coal slurry collecting pipeline with the second waste coal slurry discharge valve 10.
Further, a sewage pipeline connected with the trench 25 is arranged at the bottom of the gasification unit 11, and a third waste coal slurry discharge valve 13 is arranged on the sewage pipeline.
Further, a fifth tee joint 16 and a second flushing water valve 31 are arranged between the first tee joint 24 and the trench 25; and a flushing main pipeline with a first flushing water valve 30 is arranged at the third end of the fifth tee joint 16, and is respectively connected with the first waste slurry collecting pipeline, the overflow pipeline, the second waste slurry collecting pipeline and the sewage discharge pipeline.
Further, the flushing main pipeline is connected with a first waste slurry collecting pipeline between the first waste coal slurry discharging valve 7 and the trench 25 through a branch flushing pipeline with a third flushing water valve 19; the flushing main pipeline is connected with an overflow pipeline between the coal slurry overflow valve 32 and the trench 25 through a branch flushing pipeline with a fourth flushing water valve 27; the flushing main pipeline is connected with a second waste slurry collecting pipeline between the second waste coal slurry discharge valve 10 and the trench 25 through a branch flushing pipeline with a fifth flushing water valve 28; the flushing main pipeline is connected with a sewage pipeline between the third waste coal slurry discharge valve 13 and the trench 25 through a branch flushing pipeline with a sixth flushing water valve 29.
A device and a process method for recycling waste slurry of coal water slurry comprise the following steps:
the method comprises the following steps: the coal grinding water in the coal grinding water tank 1 enters a first tee joint 3 through a coal grinding water pump 2, and the first tee joint 3 is respectively connected with a coal grinding unit 5 and a flushing water supplementing valve 4; the coal grinding water enters a washing water tank 21 through a washing water replenishing valve 4; the flushing water replenishing valve 4 is in a normally closed state after replenishing water to the flushing water tank 21 for the first time.
Step two: the coal grinding unit 5 is respectively connected with a first waste coal slurry discharge valve 7 and a coal slurry tank 8 through a second tee joint 6, the qualified coal slurry enters the coal slurry tank 8, and the unqualified coal slurry is discharged into a trench 25 through the first waste coal slurry discharge valve 7; the unqualified coal slurry comprises coal slurry with unqualified granularity, unqualified viscosity and unqualified concentration in the running process of the coal grinding unit, and comprises unqualified coal slurry at the initial starting stage of the mill and discharged coal slurry after the mill is stopped.
Step three: the bottom of the coal slurry tank 8 is provided with a coal slurry pump 9, the coal slurry pump 9 is respectively connected with a gasification unit 11 and a second waste coal slurry discharge valve 10 through a fourth tee joint 12, and the bottom of the gasification unit 11 is provided with a sewage discharge pipeline with a third waste coal slurry discharge valve 13; the second waste coal slurry discharge valve 10 is a pilot shower valve, and is used for discharging coal slurry sampled or observed in the normal operation process into the trench 25; the coal water slurry overflowing from the coal slurry tank 8 is discharged into the trench 25 through the coal slurry overflow valve 32, and the wastewater coal slurry in the gasification unit 11 enters the trench 25 through a bottom sewage discharge pipeline.
Step four: during the normal operation of the coal water slurry grinding and slurrying part, all the devices and pipelines in the coal grinding unit 5, the coal slurry groove 8, the coal slurry pump 9 and the gasification unit 11 are inspected, maintained and flushed, and waste coal slurry and flushing water enter the trench 25.
Step five: the upper part of the washing water tank 21 is connected with a washing water supplementing valve 4 and an alkali tank 20, the bottom of the washing water tank is provided with a washing water pump 22, the outlet of the washing water pump 22 is connected with a first tee joint 24, and a hydrophobic surfactant in a hydrophobic surfactant storage tank 23 is mixed with washing water in the washing water tank 21 through the first tee joint 24; the alkali liquor in the alkali tank 20 is sodium hydroxide, and the mass concentration is 28-32%. The pH value of the washing water in the washing water tank 21 after the alkali liquor is added is 8.0-9.2. The surfactant of the hydrophobic surfactant 23 is a quaternary ammonium salt surfactant (didodecyl hydroxypropyl quaternary ammonium salt), and the mass concentration of the surfactant in the flushing water after the second tee joint is 0.07-0.15%.
Step six: the second flushing water valve 31 is arranged at the head end of the trench 25 and discharges waste slurry in the trench 25 to the rotary vibrating screen 14. In addition, the main flushing pipeline with the first flushing water valve 30 is respectively connected with a third flushing water valve 19, a fourth flushing water valve 27, a fifth flushing water valve 28 and a sixth flushing water valve 29, and the branch flushing pipeline with the third flushing water valve 19 can send flushing water to a waste slurry accumulation part of the coal grinding unit in the trench 25; the branch flushing pipeline with the fourth flushing water valve 27 can send flushing water to a waste slurry accumulation part of the coal grinding unit in the trench 25; the branch flushing pipeline with the fifth flushing water valve 28 can send flushing water to a waste slurry accumulation part of the coal grinding unit in the trench 25; the branch flushing pipeline with the sixth flushing water valve 29 is used for flushing water and sending the flushing water to the waste slurry accumulation part of the coal grinding unit in the trench 25.
Step seven: the waste slurry collected in the trench 25 is brought into the rotary vibration sieve 14 by the washing water from the washing water tank 21, the upper discharge port of the rotary vibration sieve 14 is a solid coal discharge port, and the lower discharge port is a water discharge port. The material outlet of the rotary vibrating screen 14 is compared with the weighing bucket elevator 15, and the solid coal of the weighing bucket elevator 15 returns to the coal pulping for use through the coal slurry conveying unit. The weighing bucket elevator 15 can be matched with a weighing interlocking system, can bear 1.0-2.0 tons of coal slime in one period, and sends the coal slime to the coal slime conveying unit 16 after the coal slime reaches the bearing weight. The content of coal slime water at the outlet of the discharge hole on the rotary vibrating screen 14 is 22-30%. The lower discharge port of the rotary vibrating screen 14 is connected with an underground water tank 17, and a washing water circulating pump 18 is arranged at the bottom of the underground water tank 17.
Step eight: the rotary vibrating screen 14, the weighing bucket elevator 15, the underground water tank 17 and the washing water circulating pump 18 are located underground together, and the horizontal position is lower than a trench 25.
Step nine: the outlet of the washing water circulating pump 18 is respectively connected with a washing water tank 21 and a coal grinding and water supplementing valve 26, and the coal grinding and water supplementing valve 26 is connected with the coal grinding water tank 1. The washing water is preferentially used for complementing the liquid level of the washing water tank 21 to achieve the purpose of recycling the washing water, and the surplus water is sent to the coal grinding water tank 1 for recycling.
The utility model discloses need not to replenish water again after the back flush basin is driven and is once replenished water, according to the waste coal thick liquid accumulation position in the trench, the fixed point introduces the sparge water, reduces the circulation volume when the sparge water recycles, reduces device load and power, the utility model discloses the month retrieves the coal slime quality 20-50 tons of moisture content 22% -30%; furthermore, water and coal in the waste coal slurry are fully separated through the cationic surfactant and the rotary vibration sieve, the underground water tank is prevented from being blocked while the coal slurry is recovered, and the equipment disassembly and inspection frequency is greatly reduced.
In the description of the present invention, it is to 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 by those of ordinary skill in the art through specific situations.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The utility model provides a coal slurry waste slurry recycle device, this recycle device include coal slurry mill coal slurrying portion, this coal slurry mill coal slurrying portion includes that mill coal basin (1), mill coal basin (1) loop through mill coal water pump (2), coal grinding unit (5), coal slurry groove (8) and coal slurry pump (9) link to each other with gasification unit (11), its characterized in that: the bottom of the coal water slurry grinding and slurrying part is provided with a waste slurry collecting part, and the waste slurry collecting part is respectively connected with a coal grinding water tank (1) and a flushing water tank (21) in the waste slurry collecting part through a waste coal slurry processing part; the waste slurry collecting part is connected with a hydrophobic surfactant storage tank (23).
2. The recycling device of the waste slurry of the coal water slurry as claimed in claim 1, characterized in that: the waste slurry collecting part comprises a washing water tank (21), and the washing water tank (21) is connected with a trench (25) through a washing water pump (22) and a first tee joint (24); the third end of the first tee joint (24) is communicated with a hydrophobic surfactant storage tank (23).
3. The recycling device of the waste slurry of the coal water slurry as claimed in claim 1, characterized in that: the waste coal slurry treatment part comprises a rotary vibration sieve (14) connected with the bottom of one side of the trench (25), and a solid phase outlet of the rotary vibration sieve (14) is connected with the weighing bucket elevator (15); the liquid phase outlet of the rotary vibration sieve (14) is connected with a washing water circulating pump (18) through an underground water tank (17), the outlet of the washing water circulating pump (18) is respectively connected with a washing water tank (21) and a coal grinding water supplementing valve (26), and the coal grinding water supplementing valve (26) is connected with the coal grinding water tank (1).
4. The recycling device of the waste slurry of the coal water slurry as claimed in claim 1, characterized in that: a second tee joint (3) is arranged between the coal grinding water tank (1) and the coal grinding water pump (2), the third end of the second tee joint (3) is communicated with a washing water replenishing port of a washing water tank (21) through a washing water replenishing valve (4), and a top alkali liquor inlet of the washing water tank (21) is connected with an alkali tank (20).
5. The recycling device of the waste slurry of the coal water slurry as claimed in claim 1, characterized in that: and a third tee joint (6) is arranged between the coal grinding unit (5) and the coal slurry groove (8), and the third end of the third tee joint (6) is communicated with the trench (25) through a first waste slurry collecting pipeline with a first waste coal slurry discharge valve (7).
6. The recycling device of the waste slurry of the coal water slurry as claimed in claim 1, characterized in that: and one side of the upper part of the coal slurry groove (8) is provided with an overflow pipeline communicated with the trench (25), and the overflow pipeline is provided with a coal slurry overflow valve (32).
7. The recycling device of the waste slurry of the coal water slurry as claimed in claim 1, characterized in that: and a second waste coal slurry discharge valve (10) is arranged between the coal slurry pump (9) and the gasification unit (11), the second waste coal slurry discharge valve (10) is a guide shower valve, and the guide shower valve is communicated with the trench (25) through a second waste coal slurry collecting pipeline with the second waste coal slurry discharge valve (10).
8. The recycling device of the waste slurry of the coal water slurry as claimed in claim 1, characterized in that: and a sewage discharge pipeline connected with a trench (25) is arranged at the bottom of the gasification unit (11), and a third waste coal slurry discharge valve (13) is arranged on the sewage discharge pipeline.
9. The recycling device of the waste slurry of the coal water slurry according to claim 2, characterized in that: a fifth tee joint (16) and a second flushing water valve (31) are arranged between the first tee joint (24) and the trench (25);
and a flushing main pipeline with a first flushing water valve (30) is arranged at the third end of the fifth tee joint (16), and the flushing main pipeline is respectively connected with the first waste slurry collecting pipeline, the overflow pipeline, the second waste slurry collecting pipeline and the sewage discharge pipeline.
10. The recycling device of the waste slurry of the coal water slurry according to claim 9, characterized in that: the flushing main pipeline is connected with a first waste slurry collecting pipeline between the first waste coal slurry discharge valve (7) and the trench (25) through a branch flushing pipeline with a third flushing water valve (19);
the main flushing pipeline is connected with an overflow pipeline between the coal slurry overflow valve (32) and the trench (25) through a branch flushing pipeline with a fourth flushing water valve (27);
the flushing main pipeline is connected with a second waste slurry collecting pipeline between the second waste coal slurry discharge valve (10) and the trench (25) through a branch flushing pipeline with a fifth flushing water valve (28);
the flushing main pipeline is connected with a sewage discharge pipeline between a third waste coal slurry discharge valve (13) and a trench (25) through a branch flushing pipeline with a sixth flushing water valve (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021924924.8U CN213085893U (en) | 2020-09-05 | 2020-09-05 | Water coal slurry waste slurry recycling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021924924.8U CN213085893U (en) | 2020-09-05 | 2020-09-05 | Water coal slurry waste slurry recycling device |
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| CN213085893U true CN213085893U (en) | 2021-04-30 |
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| CN202021924924.8U Active CN213085893U (en) | 2020-09-05 | 2020-09-05 | Water coal slurry waste slurry recycling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113773888A (en) * | 2021-09-29 | 2021-12-10 | 河南心连心化学工业集团股份有限公司 | Coal chemical industry waste slurry pretreatment device and treatment method |
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2020
- 2020-09-05 CN CN202021924924.8U patent/CN213085893U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113773888A (en) * | 2021-09-29 | 2021-12-10 | 河南心连心化学工业集团股份有限公司 | Coal chemical industry waste slurry pretreatment device and treatment method |
| CN113773888B (en) * | 2021-09-29 | 2023-09-19 | 河南心连心化学工业集团股份有限公司 | Pretreatment device and pretreatment method for coal chemical waste slurry |
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