CN218709468U - Coal slime water electrocoagulation treater - Google Patents
Coal slime water electrocoagulation treater Download PDFInfo
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- CN218709468U CN218709468U CN202222930119.1U CN202222930119U CN218709468U CN 218709468 U CN218709468 U CN 218709468U CN 202222930119 U CN202222930119 U CN 202222930119U CN 218709468 U CN218709468 U CN 218709468U
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Abstract
The utility model discloses a coal slime water electrocoagulation treater, including electrolysis air supporting pond, electrocoagulation pond and power, electrolysis air supporting pond and the adjacent setting of electrocoagulation pond, and set up the through-hole of intercommunication at electrolysis air supporting pond and electrocoagulation pond contact surface middle part, through-hole department installs the ionic membrane, install first combined electrode in the electrolysis air supporting pond, install second combined electrode in the electrocoagulation pond, the negative pole of power links to each other with first combined electrode, and the positive pole of power links to each other with second combined electrode, and electrolysis air supporting bottom of the pool portion is provided with first heavy thing export, and electrocoagulation bottom of the pool portion is provided with the heavy thing export of second. The utility model discloses a coal slime water electrocoagulation treater simple structure, reasonable in design realizes convenient and with low costs, easy operation, and easy operation is fit for the field operation, can realize the clean coal and retrieve, and the purpose of coal slime water treatment and coproduction hydrogen.
Description
Technical Field
The utility model belongs to the technical field of the coal slime water treatment, concretely relates to coal slime water electrocoagulation treater.
Background
A large amount of water is consumed in the coal washing process, three tons of water circulation is needed for selecting one ton of coal, and the circulation water of a common coal preparation plant can reach thousands of squares. In the treatment process of the coal slime water, in order to enable the coal slime water to be rapidly settled, agents such as flocculating agent, flocculating agent and the like are generally added into a coal slime thickener. In recent years, along with the deepening of the mining depth of raw coal and the improvement of the mechanization degree of coal dressing, the lower limit of the separation of the raw coal is reduced, so that the proportion of fine particles in coal slurry water in a coal dressing plant is increased; meanwhile, the clay mineral content in the selected raw coal is high, the phenomenon of gangue argillization is serious, and great pressure is caused for the treatment of coal muddy water. In order to solve the problems, a coal preparation plant usually adopts a method of increasing the addition of a medicament to promote the flocculation and sedimentation of fine coal slime, but the effect is not ideal, and because a flocculating agent commonly used by the coal preparation plant is an inorganic flocculating agent such as sulfate or chloride, the treatment effect on the coal slime water difficult to settle is poor, the content of corrosive ions in the circulating water is increased, and the corrosion degree on a steel structure of the coal preparation plant is increased.
The electric flocculation sedimentation technology adopts a soluble anode, common polar plate materials such as Fe, al and the like, and after external voltage is applied to an aqueous solution, the metal anode is oxidized and dissolved to generate metal ions Fe 2+ 、Fe 3+ 、Al 3+ After a series of hydrolysis and ferrous oxidation processes, the mixture is converted into hydroxyl complex and hydroxide, and then the surface potential of colloidal particles is reduced through the actions of double electric layer compression, electric adsorption neutralization, net catching and sweeping and the like, so that the colloidal particles are easy to settle; formation of Fe (OH) 2 And Fe (OH) 3 The hydroxide can adsorb colloidal particles for settling and catching, so that the colloidal particles in the aqueous solution are destabilized, aggregated and precipitated and are easy to separate. At present, the electrocoagulation technology is widely used for treating food processing wastewater, metal cutting waste emulsion, electroplating coating wastewater, urban domestic sewage, oil extraction wastewater and other fields, and is an important water treatment technology. The electrocoagulation technology has the features of wide application range, wide variable parameters, etc. and is suitable for various kinds of medical needleThere are different treatment modes, equipment and processes for different environments.
Electrocoagulation is still under the exploration research stage at present in the field of coal slime water treatment. Research has found that the electrocoagulation device is used for treating coal slurry water of a coal preparation plant, can reduce the dosage of a chemical flocculant and stabilize the working condition of a thickener; when clay suspension is treated, the particle settling speed is increased, the draining property of coal slime is improved, and the clarity of supernate is improved obviously. However, electrocoagulation requires the use of electrical energy to operate, thereby increasing production costs, and the slower rate of electrocoagulation treatment of coal slurry water is a major challenge in the development of this technology.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the not enough among the above-mentioned prior art, provide a coal slime water electrocoagulation treater. The treater is simple in structure, reasonable in design, convenient to realize, low in cost, simple to operate, easy to operate, suitable for field operation, and capable of achieving the purposes of clean coal recovery, slime water treatment and hydrogen co-production.
In order to solve the technical problem, the utility model discloses a technical scheme is: a coal slime water electrocoagulation treater is characterized in that: including electrolysis air supporting pond, electrocoagulation pond and power, electrolysis air supporting pond and the adjacent setting of electrocoagulation pond, and the through-hole of intercommunication is seted up at electrolysis air supporting pond and electrocoagulation pond contact surface middle part, the ionic membrane is installed to through-hole department, install first combined electrode in the electrolysis air supporting pond, install second combined electrode in the electrocoagulation pond, the negative pole of power links to each other with first combined electrode, and the positive pole of power links to each other with second combined electrode, and electrolysis air supporting bottom of the pool portion is provided with the export of first heavy thing, and electrocoagulation bottom of the pool portion is provided with the export of second heavy thing.
The coal slime water electrocoagulation processor is characterized in that: and overflow weirs are arranged at the top of the electrolytic floatation tank and the top of the electrocoagulation tank.
The coal slime water electrocoagulation processor is characterized in that: and a feeding pipe is arranged at the upper part of the electrolytic floatation tank.
The coal slime water electrocoagulation processor is characterized in that: and a gas collecting cover is arranged above the electrolytic gas floatation tank, and a gas outlet is arranged on the gas collecting cover.
The coal slime water electrocoagulation processor is characterized in that: the first combined electrode is a combination of a graphite plate electrode, a nickel plate electrode, a zinc plate electrode, an iron plate electrode, an aluminum plate electrode or a copper plate electrode, the number of the plate electrodes is 1-10, and the distance between two adjacent plate electrodes is 2-5 mm.
The coal slime water electrocoagulation processor is characterized in that: the second combined electrode is a combination of an iron plate electrode, an aluminum plate electrode or an iron-aluminum alloy plate electrode, the number of the plate electrodes is 1-10, and the distance between two adjacent plate electrodes is 2 nn-5 mm.
The coal slime water electrocoagulation processor is characterized in that: the distance between the first combined electrode and the second combined electrode is 5 nn-20 mm.
The coal slime water electrocoagulation processor is characterized in that: and a water passing port is arranged on the contact surface of the electrolytic air flotation tank and the electrocoagulation tank and below the ionic membrane.
The coal slime water electrocoagulation processor is characterized in that: the water outlet is provided with a water pump.
Compared with the prior art, the utility model has the following advantage:
1. the utility model discloses simple structure, reasonable in design realizes conveniently and with low costs, easy operation, and easy the shang shou is fit for field operation.
2. The utility model is provided with the electrolytic flotation tank and the electrocoagulation tank, and adopts the technology of poly-generation, on one hand, the fine coal is recovered from the coal slime through the electrolytic flotation tank, the pressure of subsequent concentration and sedimentation is reduced, and simultaneously, the hydrogen is recovered by co-production; on the other hand, the slime water treated by the electrolytic floatation tank enters an electrocoagulation tank for sedimentation treatment, and the slime water is treated by an electrocoagulation method, so that the aims of clean coal recovery, slime water treatment and hydrogen co-production can be fulfilled.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Description of reference numerals:
1-electrolytic air flotation tank; 2-electrocoagulation pool; 3, a power supply;
4-ionic membrane; 5 — a first combined electrode; 6-a second combined electrode;
7-first sediment outlet; 8-a second sediment outlet; 9-overflow weir;
10-a feeding pipe; 11-gas collection cover; 12-a water gap;
13-gas outlet.
Detailed Description
As shown in fig. 1, the utility model discloses a coal slime water electrocoagulation processor, including electrolysis air supporting pond 1, electrocoagulation pond 2 and power 3, electrolysis air supporting pond 1 sets up with electrocoagulation pond 2 is adjacent, and sets up the through-hole of intercommunication at electrolysis air supporting pond 1 and electrocoagulation pond 2 contact surface middle part, through-hole department installs ionic membrane 4, install first combined electrode 5 in the electrolysis air supporting pond 1, install second combined electrode 6 in the electrocoagulation pond 2, power 3's negative pole links to each other with first combined electrode 5, and power 3's positive pole links to each other with second combined electrode 6, and electrolysis air supporting pond 1 bottom is provided with first heavy thing export 7, and electrocoagulation pond 2 bottoms are provided with second heavy thing export 8.
In this embodiment: and overflow weirs 9 are arranged at the top of the electrolytic floatation tank 1 and the top of the electrocoagulation tank 2.
In this embodiment: a feeding pipe 10 is arranged at the upper part of the electrolytic floatation tank 1.
In this embodiment: and a gas collecting cover 11 is arranged above the electrolytic floatation tank 1, and a gas outlet 13 is arranged on the gas collecting cover 11.
In this embodiment: the first combined electrode 5 is a combination of a graphite plate electrode, a nickel plate electrode, a zinc plate electrode, an iron plate electrode, an aluminum plate electrode and/or a copper plate electrode, the number of the electrode plates is 1-10, and the distance between two adjacent electrode plates is 2-5 mm.
In this embodiment: the second combined electrode 6 is a combination of an iron plate electrode, an aluminum plate electrode and/or an iron-aluminum alloy plate electrode, the number of the electrode plates is 1-10, and the distance between two adjacent electrode plates is 2-5 mm.
In this embodiment: the distance between the first combined electrode 5 and the second combined electrode 6 is 5-20 mm.
In this embodiment: and a water passing port 12 is arranged on the contact surface of the electrolytic floatation tank 1 and the electrocoagulation tank 2 and below the ionic membrane 4.
In this embodiment: a water pump is arranged at the water passing opening 12.
When the treater is used, mixed slurry of slime water to be treated and a flotation reagent is introduced into an electrolytic air flotation tank 1 through a feeding pipe 10, a water passing port 12 between the electrolytic air flotation tank 1 and an electrocoagulation tank 2 is opened, the introduced mixed slurry enters the electrocoagulation tank 2 through a water passing port 12, a second combined electrode 6 is submerged by the mixed slurry in the electrocoagulation tank 2, and the water passing port 12 is closed; turning on a power supply 3, electrifying a first combined electrode 5 and a second combined electrode 6, adjusting the voltage to be 5.0-20.0V and the current to be 2.0-20.0A, carrying out treatment, collecting clean coal from an overflow weir outlet of an electrolytic air flotation tank 1 in the treatment process, simultaneously collecting hydrogen through a gas outlet 13 on an air collection cover 11, wherein the treatment time is 2-20 min, and turning off the power supply 3 after the treatment is finished; then opening a first sediment outlet 7 at the bottom of the electrolytic flotation tank 1 and a second sediment outlet 8 at the bottom of the electrocoagulation tank 2, and discharging the precipitated coal slime; and opening the water passing port 12, leading the slime water treated by the electrolytic air flotation tank 1 into the electrocoagulation tank 2, simultaneously leading mixed slurry of the slime water to be treated and a flotation reagent into the electrolytic air flotation tank 1, and repeatedly treating.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (9)
1. A coal slime water electrocoagulation processor is characterized in that: including electrolysis air supporting pond (1), electrocoagulation pond (2) and power (3), electrolysis air supporting pond (1) is adjacent setting with electrocoagulation pond (2), and the through-hole of intercommunication is seted up at electrolysis air supporting pond (1) and electrocoagulation pond (2) contact surface middle part, ionic membrane (4) are installed to through-hole department, install first combined electrode (5) in electrolysis air supporting pond (1), install second combined electrode (6) in electrocoagulation pond (2), the negative pole of power (3) links to each other with first combined electrode (5), and the positive pole of power (3) links to each other with second combined electrode (6), and electrolysis air supporting pond (1) bottom is provided with first heavy thing export (7), and electrocoagulation pond (2) bottom is provided with second heavy thing export (8).
2. The coal slime electrocoagulation processor of claim 1, wherein: overflow weirs (9) are arranged at the top of the electrolytic floatation tank (1) and the top of the electrocoagulation tank (2).
3. The coal slime electrocoagulation processor of claim 1, wherein: a feeding pipe (10) is arranged at the upper part of the electrolytic floatation tank (1).
4. The coal slime electrocoagulation processor of claim 1, wherein: a gas collecting cover (11) is arranged above the electrolytic gas floatation tank (1), and a gas outlet (13) is arranged on the gas collecting cover (11).
5. The coal slurry electrocoagulation processor according to claim 1, wherein: the first combined electrode (5) is a combination of a graphite plate electrode, a nickel plate electrode, a zinc plate electrode, an iron plate electrode, an aluminum plate electrode and/or a copper plate electrode, the number of the plate electrodes is 1-10, and the distance between two adjacent plate electrodes is 2-5 mm.
6. The coal slime electrocoagulation processor of claim 1, wherein: the second combined electrode (6) is a combination of an iron plate electrode, an aluminum plate electrode and/or an iron-aluminum alloy plate electrode, the number of the electrode plates is 1-10, and the distance between two adjacent electrode plates is 2-5 mm.
7. The coal slime electrocoagulation processor of claim 1, wherein: the distance between the first combined electrode (5) and the second combined electrode (6) is 5-20 mm.
8. The coal slime electrocoagulation processor of claim 1, wherein: and a water passing port (12) is arranged on the contact surface of the electrolytic air flotation tank (1) and the electrocoagulation tank (2) and below the ionic membrane (4).
9. The coal slime electrocoagulation processor of claim 8, wherein: a water pump is arranged at the water passing opening (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222930119.1U CN218709468U (en) | 2022-11-03 | 2022-11-03 | Coal slime water electrocoagulation treater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222930119.1U CN218709468U (en) | 2022-11-03 | 2022-11-03 | Coal slime water electrocoagulation treater |
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| Publication Number | Publication Date |
|---|---|
| CN218709468U true CN218709468U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222930119.1U Active CN218709468U (en) | 2022-11-03 | 2022-11-03 | Coal slime water electrocoagulation treater |
Country Status (1)
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| CN (1) | CN218709468U (en) |
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2022
- 2022-11-03 CN CN202222930119.1U patent/CN218709468U/en active Active
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