CN112225339A - Coal preparation and slime water mixing, dosing and filter press linkage system and method - Google Patents
Coal preparation and slime water mixing, dosing and filter press linkage system and method Download PDFInfo
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- CN112225339A CN112225339A CN202010820215.3A CN202010820215A CN112225339A CN 112225339 A CN112225339 A CN 112225339A CN 202010820215 A CN202010820215 A CN 202010820215A CN 112225339 A CN112225339 A CN 112225339A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
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Abstract
The invention relates to a coal preparation slime water mixing, dosing and filter press linkage system and a method, wherein a first automatic dosing belt is used for adding an anionic medicament into a first funnel, and a second automatic dosing belt is used for adding a cationic medicament into a second funnel; the first funnel, the gas ring vacuum pump, the mixing device, the stirring barrel, the medicine storage box, the medicine feeding device, the concentration tank, the filter pressing feeding barrel and the filter press are sequentially connected through a connecting pipeline; the second funnel is connected with the stirring barrel; the coal slime water main pipe is connected with the concentration tank, a feeding concentration meter and a first flowmeter are mounted on the coal slime water main pipe, an interface instrument, an underflow concentration meter and a second flowmeter are mounted in the concentration tank, and the filter press is provided with an electromagnetic valve, a current meter and a filtrate water flowmeter; the waste of the medicament can be effectively reduced, and the medicament adding process can be more accurately controlled; equipment investment can be reduced, and cost is effectively reduced; the medicine adding time is shortened, and the working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of coal washing, in particular to a coal dressing, slime water mixing, dosing and filter press linkage system and method.
Background
In more than 10 years, although the coal industry has been developed at a high speed, the average labor productivity of large coal enterprises in China is far lower than that of overseas enterprises, the labor productivity is also not high in the coal washing and selecting process link, even most coal washing plants have realized centralized control, the production and management still need to be participated in the whole manual process, the manual experience is highly relied on, and the information and intelligent construction aspects are relatively lagged.
The coal slime water dosing system is used for preparing and adding a flocculating agent and a flocculating agent for purifying coal slime water so as to accelerate the sedimentation velocity of fine particles in the coal slime water. So that the clarified overflow water meets the water requirement, and then the obtained underflow enters a filter pressing system to recover coal slime. The traditional dosing process adopts manual control of dosing amount, concentration of a clarification layer of a concentration tank is observed by naked eyes, the operation process cannot be quantized, medicament waste is easily caused, underflow obtained from a thickener needs to be conveyed to a filter press through an underflow workshop for treatment, the storage condition of the underflow in an underflow barrel needs to be checked manually, communication with the filter press workshop is required frequently, time and labor are wasted, and efficiency is affected. Although some devices using intelligent medicine feeding are available in the prior art, an intelligent medicine feeding mechanism is disclosed in the patent application with the publication number of CN109574172A, but the whole device has a complex structure and is troublesome to control.
Considering that the treatment of the slime water is a very important process link of a coal preparation plant, the treatment effect can directly influence indexes of reuse and closed cycle of washing water, and the treatment effect has great influence on other links of the coal preparation plant, such as separation efficiency, number quality indexes of products and the like, and even is an important system which restricts economic benefits and social benefits of the whole plant.
Therefore, a more optimized linkage system for coal preparation, coal slurry mixing, dosing and filter press is needed to solve the existing problems.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a linkage system of coal preparation, coal slurry and water mixing, dosing and filter press, which has reasonable structural design and improves the automation capability and the operation efficiency of a coal slurry system, and provides a linkage method thereof.
The technical scheme adopted by the invention for solving the problems is as follows: the utility model provides a coal dressing slime water mixes adds medicine and pressure filter linked system which characterized in that: the device comprises a controller, a first automatic dosing belt, a second automatic dosing belt, a first hopper, a second hopper, an air ring vacuum pump, a mixing device, a stirring barrel, a medicine storage box, a dosing device, a concentration tank, a filter pressing feeding barrel, a filter press and a coal slime water main pipe; the first automatic dosing belt and the second automatic dosing belt are in communication connection with the controller; the first automatic dosing belt is used for adding an anionic agent into the first hopper, and the anionic agent is a flocculating agent; the second automatic dosing belt is used for adding a cationic medicament into the second funnel, and the cationic medicament is a coagulant; the first hopper, the gas ring vacuum pump, the mixing device, the stirring barrel, the medicine storage box, the dosing device, the concentration tank, the filter pressing feeding barrel and the filter press are sequentially connected through a connecting pipeline; the second hopper is connected with the stirring barrel; the coal slime water main pipe is connected with the concentration tank, and the coal slime water is conveyed into the concentration tank through the coal slime water main pipe; the coal slime water main pipe is provided with a feeding concentration meter and a first flowmeter which are in communication connection with the controller, and the controller performs feed-forward adjustment on the dosing amounts of the first automatic dosing belt and the second automatic dosing belt according to the detection values of the feeding concentration meter and the first flowmeter; an interface instrument, a bottom flow concentration meter and a second flow meter are arranged in the concentration tank, the interface instrument is used for detecting the height of a clarified water layer of the concentration tank, the bottom flow concentration meter is used for measuring the bottom flow concentration, and the second flow meter is used for measuring the bottom flow; the interface instrument, the underflow concentration meter and the second flow meter are in communication connection with the controller, and the controller performs feedback adjustment on the dosing amount of the first automatic dosing belt and the dosing amount of the second automatic dosing belt according to detection values of the interface instrument, the underflow concentration meter and the second flow meter; solenoid valve, current measurement meter and filtrating water flowmeter are installed to the pressure filter, and the solenoid valve is used for the control to unload, solenoid valve, current measurement meter and filtrating water flowmeter all with controller communication connection, the controller controls the switching of solenoid valve according to the detected value and the concentrated pond bottom flow concentration and the flow of current measurement meter and filtrating water flowmeter to carry out intelligence and unload.
Preferably, the mixing device is connected to an external water line, and the anionic pharmaceutical agent is added to the mixing device to be mixed with water first.
Preferably, an atomization device is installed in the mixing device, and the atomization device is used for spraying and pre-dissolving the anionic medicament.
Preferably, a liquid level sensor is installed in the medicine storage box, a transfer valve and a discharge pump are installed at a discharge port at the bottom of the medicine storage box, and the medicine in the medicine storage box is transferred to the administration device by opening the transfer valve and starting the discharge pump.
The invention also provides a coal dressing slime water mixing medicine adding and filter press linkage method which is implemented by adopting the linkage system and is characterized in that:
the method comprises the following steps: the anionic medicament sequentially passes through a first automatic dosing belt, a first hopper and a mixing device and then enters a stirring barrel;
step two: the cationic agent enters the stirring barrel through a second automatic dosing belt and a second hopper;
step three: the anion and cation medicaments are fully and uniformly mixed in the stirring barrel and then flow into the medicament storage box, and the medicaments in the medicament storage box are added into the concentration tank through the medicament feeding device;
step four: the coal slime water is conveyed into a concentration tank through a coal slime water main pipe, is concentrated in the concentration tank under the action of a medicament, and the generated concentrate is discharged to a filter pressing charging bucket and then enters a filter press for filter pressing;
step five: the controller performs feedforward adjustment on the dosing amount of the first automatic dosing belt and the second automatic dosing belt according to the detection values of the feeding concentration meter and the first flow meter, and performs feedback adjustment on the dosing amount of the first automatic dosing belt and the second automatic dosing belt according to the detection values of the interface instrument, the underflow concentration meter and the second flow meter, so that accurate dosing is realized;
step six: the controller controls the opening and closing of the electromagnetic valve according to the detection values of the current measuring meter and the filtrate water flow meter and the concentration and the flow of the bottom flow of the concentration tank, so that intelligent discharging is performed.
Compared with the prior art, the invention has the following advantages and effects: automatic combined dosing is realized, the labor is reduced, and the labor intensity is reduced; the waste of the medicament can be effectively reduced, and the medicament adding process can be more accurately controlled; equipment investment can be reduced, and cost is effectively reduced; the medicine adding time is shortened, and the working efficiency is improved.
Drawings
In order to illustrate the embodiments of the present invention or the solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Description of reference numerals: the device comprises a controller 1, a first automatic dosing belt 2, a second automatic dosing belt 3, a first funnel 4, a second funnel 5, an air ring vacuum pump 6, a mixing device 7, a stirring barrel 8, a medicine storage box 9, a dosing device 10, a concentration tank 11, a filter pressing feeding barrel 12, a filter press 13 and a coal slime water main pipe 14.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.
Examples are given.
See fig. 1.
The embodiment discloses coal dressing coal slime water mixes adds medicine and pressure filter linked system, and it includes controller 1, automatic belt 2, the automatic belt 3 of dosing of No. two, No. 4 funnels of a funnel, No. 5 funnels, gas ring vacuum pump 6, mixing arrangement 7, agitator 8, explosive box 9, device 10 of dosing, concentrated pond 11, filter-pressing admission bucket 12, pressure filter 13 and coal slime water house steward 14 of dosing.
In the embodiment, the first automatic medicine feeding belt 2 and the second automatic medicine feeding belt 3 are in communication connection with the controller 1; the first automatic drug delivery belt 2 is used for adding an anionic agent into the first funnel 4, and the anionic agent is a flocculating agent. The second automatic administration belt 3 is used to add a cationic agent, which is a coagulant, into the second hopper 5.
In this embodiment, the first hopper 4, the gas ring vacuum pump 6, the mixing device 7, the stirring barrel 8, the medicine storage box 9, the medicine feeder 10, the concentration tank 11, the filter pressing charging barrel 12, and the filter press 13 are connected in sequence by connecting pipes. The second funnel 5 is connected with the stirring barrel 8; the anion and cation medicaments are fully mixed in the stirring barrel 8.
In this embodiment, the coal slime water main pipe 14 is connected with the concentration tank 11, and the coal slime water is input into the concentration tank 11 through the coal slime water main pipe 14. Install pan feeding concentration meter and a flowmeter on coal slime water main 14, pan feeding concentration meter and flowmeter all with controller 1 communication connection, controller 1 carries out feedforward control to the volume of adding medicine of belt 2 and No. two automatic dosing belts 3 of dosing according to the detection value of pan feeding concentration meter and flowmeter. An interface instrument, an underflow concentration meter and a second flow meter are arranged in the concentration tank 11, the interface instrument is used for detecting the height of a clarified water layer of the concentration tank, the underflow concentration meter is used for measuring the underflow concentration, and the second flow meter is used for measuring the underflow flow; the interface instrument, the underflow concentration meter and the second flow meter are in communication connection with the controller 1, the controller 1 performs feedback adjustment on the dosing amount of the first automatic dosing belt 2 and the second automatic dosing belt 3 according to the detection values of the interface instrument, the underflow concentration meter and the second flow meter, the height of a clarification layer is stabilized, the medicament waste is reduced, and accurate dosing is realized.
In this embodiment, the filter press 13 is provided with an electromagnetic valve, a current measuring meter and a filtrate water flow meter, the electromagnetic valve is used for controlling discharging, the electromagnetic valve, the current measuring meter and the filtrate water flow meter are all in communication connection with the controller 1, and the controller 1 controls the opening and closing of the electromagnetic valve according to the detection values of the current measuring meter and the filtrate water flow meter and the concentration and flow rate of the bottom of the concentration tank, so as to perform intelligent discharging.
In this embodiment, the mixing device 7 is connected to an external water pipe, and the anionic agent is added to the mixing device 7 to be mixed with water first. An atomization device is arranged in the mixing device 7 and is used for spraying and pre-dissolving the anion medicament. A liquid level sensor is installed in the medicine storage box 9, a transfer valve and a discharge pump are installed at a discharge port at the bottom of the medicine storage box 9, and the medicines in the medicine storage box 9 are transferred to the medicine feeding device 10 by opening the transfer valve and starting the discharge pump. The drug delivery device 10 is provided with a feed pump at the bottom discharge port thereof, and the drug is fed into the concentration tank 11 by the pump.
The embodiment also provides a coal dressing, slime water mixing, dosing and filter press linkage method, which is implemented by adopting the linkage system and comprises the following steps:
the method comprises the following steps: the anionic agent sequentially passes through the first automatic dosing belt 2, the first hopper 4 and the mixing device 7 and then enters the stirring barrel 8;
step two: the cationic agent enters the stirring barrel 8 through the second automatic dosing belt 3 and the second hopper 5;
step three: the anion and cation medicaments are fully and uniformly mixed in the stirring barrel 8 and then flow into the medicament storage box 9, and the medicaments in the medicament storage box 9 are added into the concentration tank 11 through the medicament feeding device 10;
step four: the coal slime water is input into a concentration tank 11 through a coal slime water main pipe 14, is concentrated in the concentration tank 11 under the action of a medicament, and the generated concentrate is discharged to a filter pressing charging bucket 12 and then enters a filter press 13 for filter pressing;
step five: the controller 1 performs feedforward adjustment on the dosing amount of the first automatic dosing belt 2 and the second automatic dosing belt 3 according to the detection values of the feeding concentration meter and the first flowmeter, and the controller 1 performs feedback adjustment on the dosing amount of the first automatic dosing belt 2 and the second automatic dosing belt 3 according to the detection values of the interface instrument, the underflow concentration meter and the second flowmeter, so that accurate dosing is realized;
step six: the controller 1 controls the opening and closing of the electromagnetic valve according to the detection values of the current measuring meter and the filtrate water flow meter and the concentration and the flow of the bottom flow of the concentration tank, thereby intelligently discharging.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an illustration of the structure of the present invention. All equivalent or simple changes in the structure, characteristics and principles of the invention are included in the protection scope of the patent. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (5)
1. The utility model provides a coal dressing slime water mixes adds medicine and pressure filter linked system which characterized in that: the device comprises a controller (1), a first automatic dosing belt (2), a second automatic dosing belt (3), a first funnel (4), a second funnel (5), an air ring vacuum pump (6), a mixing device (7), a stirring barrel (8), a medicine storage box (9), a dosing device (10), a concentration tank (11), a filter pressing feeding barrel (12), a filter press (13) and a coal slime water main pipe (14); the first automatic medicine feeding belt (2) and the second automatic medicine feeding belt (3) are in communication connection with the controller (1); the first automatic drug feeding belt (2) is used for adding an anionic agent into the first hopper (4), and the anionic agent is a flocculating agent; the second automatic dosing belt (3) is used for adding a cationic medicament into the second hopper (5), and the cationic medicament is a coagulant; the first hopper (4), the gas ring vacuum pump (6), the mixing device (7), the stirring barrel (8), the medicine storage box (9), the medicine feeding device (10), the concentration tank (11), the filter pressing feeding barrel (12) and the filter press (13) are sequentially connected through a connecting pipeline; the second hopper (5) is connected with the stirring barrel (8); the coal slime water main pipe (14) is connected with the concentration tank (11), and the coal slime water is input into the concentration tank (11) through the coal slime water main pipe (14);
a feeding concentration meter and a first flowmeter are mounted on the coal slime water main pipe (14), the feeding concentration meter and the first flowmeter are in communication connection with the controller (1), and the controller (1) performs feed-forward adjustment on the dosing amounts of the first automatic dosing belt (2) and the second automatic dosing belt (3) according to detection values of the feeding concentration meter and the first flowmeter;
an interface instrument, an underflow concentration meter and a second flow meter are arranged in the concentration tank (11), the interface instrument is used for detecting the height of a clarified water layer of the concentration tank, the underflow concentration meter is used for measuring the underflow concentration, and the second flow meter is used for measuring the underflow flow; the interface instrument, the underflow concentration meter and the second flow meter are in communication connection with the controller (1), and the controller (1) performs feedback regulation on the dosing amount of the first automatic dosing belt (2) and the second automatic dosing belt (3) according to the detection values of the interface instrument, the underflow concentration meter and the second flow meter;
solenoid valve, current measurement meter and filtrating water flowmeter are installed to pressure filter (13), and the solenoid valve is used for the control to unload, solenoid valve, current measurement meter and filtrating water flowmeter all with controller (1) communication connection, controller (1) are according to the detected value of current measurement meter and filtrating water flowmeter and concentration pool bottom flow concentration and flow to control the switching of solenoid valve to carry out intelligence and unload.
2. The coal preparation and slurry water mixing, dosing and filter press linkage system of claim 1, wherein: the mixing device (7) is connected to an external water pipe, and the anionic agent is added to the mixing device (7) to be mixed with water first.
3. The coal preparation and slurry water mixing, dosing and filter press linkage system of claim 2, wherein: an atomization device is installed in the mixing device (7), and the atomization device is used for spraying and pre-dissolving the anion medicament.
4. The coal preparation and slurry water mixing, dosing and filter press linkage system of claim 1, wherein: a liquid level sensor is installed in the medicine storage box (9), a transfer valve and a discharge pump are installed at a discharge port at the bottom of the medicine storage box (9), and medicines in the medicine storage box (9) are transferred to the medicine feeding device (10) by opening the transfer valve and starting the discharge pump.
5. A linkage method for coal preparation, coal slurry mixing, dosing and filter press is implemented by adopting the linkage system of any one of claims 1 to 4, and is characterized in that:
the method comprises the following steps: the anionic medicament sequentially passes through the first automatic dosing belt (2), the first hopper (4) and the mixing device (7) and then enters the stirring barrel (8);
step two: the cationic agent enters the stirring barrel (8) through the second automatic dosing belt (3) and the second hopper (5);
step three: the anion and cation medicaments are fully and uniformly mixed in the stirring barrel (8) and then flow into the medicament storage box (9), and the medicaments in the medicament storage box (9) are added into the concentration tank (11) through the medicament feeding device (10);
step four: the coal slime water is input into a concentration tank (11) through a coal slime water main pipe (14), concentrated in the concentration tank (11) under the action of a medicament, and the generated concentrate is discharged into a filter pressing charging bucket (12) and then enters a filter press (13) for filter pressing;
step five: the controller (1) performs feedforward adjustment on the dosing amount of the first automatic dosing belt (2) and the second automatic dosing belt (3) according to the detection values of the feeding concentration meter and the first flow meter, and the controller (1) performs feedback adjustment on the dosing amount of the first automatic dosing belt (2) and the second automatic dosing belt (3) according to the detection values of the interface instrument, the underflow concentration meter and the second flow meter, so that accurate dosing is realized;
step six: the controller (1) controls the opening and closing of the electromagnetic valve according to the detection values of the current measuring meter and the filtrate water flow meter and the concentration and the flow of the bottom flow of the concentration tank, so that intelligent discharging is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010820215.3A CN112225339A (en) | 2020-08-14 | 2020-08-14 | Coal preparation and slime water mixing, dosing and filter press linkage system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010820215.3A CN112225339A (en) | 2020-08-14 | 2020-08-14 | Coal preparation and slime water mixing, dosing and filter press linkage system and method |
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| CN112225339A true CN112225339A (en) | 2021-01-15 |
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| CN202010820215.3A Pending CN112225339A (en) | 2020-08-14 | 2020-08-14 | Coal preparation and slime water mixing, dosing and filter press linkage system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996446A (en) * | 2021-12-31 | 2022-02-01 | 天津美腾科技股份有限公司 | Concentration dosing system and concentration dosing method |
| CN115282689A (en) * | 2022-07-26 | 2022-11-04 | 中国矿业大学(北京) | Coal slime water treatment control system |
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| CN212655602U (en) * | 2020-08-14 | 2021-03-05 | 华电电力科学研究院有限公司 | Coal dressing slime water mixing adds medicine and pressure filter linked system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113996446A (en) * | 2021-12-31 | 2022-02-01 | 天津美腾科技股份有限公司 | Concentration dosing system and concentration dosing method |
| CN115282689A (en) * | 2022-07-26 | 2022-11-04 | 中国矿业大学(北京) | Coal slime water treatment control system |
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