Method for improving slime water treatment efficiency

Abstract

The invention discloses a method for improving slime water treatment efficiency, and relates to the technical field of slime water treatment.Densitometers for measuring the density of slime water are installed at different positions in a slime water treatment pond, and flow meters and electric ball valves are installed on a slime water input pipeline, a slime water output pipeline and a dosing pipeline; the densimeter and the flow meter send related measured values to the intelligent dosing control terminal, the intelligent dosing control terminal analyzes and judges the measured values and then controls opening and closing of the electric ball valves, the dosage of chemicals matched with the density and the volume of the coal slime water is added, the chemicals and the coal slime water are fully mixed through the coal slime water stirrer, finally the treated coal slime water is discharged, and solid-liquid separation is achieved. By collecting the density and the volume of the coal slime water needing to be treated in real time and intelligently adding the matched dosage of the coal slime water, the use amount of the agent can be accurately controlled, the intelligent technical level and the treatment efficiency of coal slime water treatment are improved, human subjective factor intervention is reduced, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of coal slime water treatment, in particular to a method for improving coal slime water treatment efficiency. Background Art

[0002] Coal slime water is a kind of sewage that is inevitably produced during the coal washing process of coal preparation plants. In order to further extract the clean coal and recycle the treated water to reduce the harm to the environment, the treatment of coal slime water has always attracted much attention from coal preparation companies. Since coal slime water is often turbid and has complex mineral components, it often takes a long time and occupies a large space to precipitate minerals by static precipitation. Therefore, the treatment of coal slime water by coal preparation plants is mainly based on the characteristics of different minerals it contains, and relevant agents are actively added to accelerate the precipitation of minerals, and then filtered to achieve solid-liquid separation.

[0003] At present, in the process of coal slime water treatment, although most coal washing plants have been able to use mechanical equipment instead of manual addition of related reagents, the amount and time of adding reagents still rely mainly on personnel experience and subjective judgment. Due to the different densities of coal slime water generated in different coal washing periods, the above-mentioned method of adding reagents is usually difficult to accurately control the amount of reagents added, and even causes waste of reagents or insufficient addition, which has a certain impact on the efficiency of coal slime water treatment. However, there is a lack of means to judge the amount of added reagents in real time. With the rapid development of artificial intelligence technology, advanced measurement technology and communication technology, it provides an opportunity to realize real-time, intelligent and precise dosing in the process of coal slime water treatment. To this end, how to monitor the density of coal slime water in real time and add a reasonable amount of reagents based on its different densities is of great significance for accurately adding the amount of reagents, improving the efficiency of coal slime water treatment and the economic benefits of coal preparation plants. To this end, a method for improving the efficiency of coal slime water treatment is provided. Summary of the invention

[0004] The object of the present invention is to provide a method for improving the efficiency of coal slime water treatment.

[0005] The purpose of the present invention can be achieved by the following technical scheme: A method for improving the efficiency of coal slime water treatment, comprising the following steps:

[0006] Step S1: installing densitometers for measuring the density of coal slime water at different locations in the coal slime water treatment pool, and installing flow meters and electric ball valves on the coal slime water input pipe, coal slime water output pipe and dosing pipe leading to the coal slime water treatment pool;

[0007] Step S2: Obtain the density value of the coal slurry water and the flow value of the coal slurry water entering the coal slurry water treatment pool through the installed density meter and flow meter, and upload the obtained coal slurry water density value and coal slurry water flow value to the intelligent dosing control terminal;

[0008] Step S3: the intelligent dosing control terminal processes the obtained coal slurry water density value and coal slurry water flow value to generate corresponding control instructions;

[0009] Step S4: the electric ball valve controls the opening or closing of the dosing pipeline according to the generated control instruction.

[0010] Furthermore, the coal slurry water treatment tank is provided with a maximum allowable volume, and the maximum allowable volume of the coal slurry water treatment tank is denoted as V max .

[0011] Furthermore, the flow rate value of the coal slurry water injected into the coal slurry water treatment tank is obtained according to the flow meter arranged in the coal slurry water input pipeline, and the obtained flow rate value is uploaded to the intelligent dosing control terminal;

[0012] According to the obtained flow value, the volume of the coal slurry water injected into the coal slurry water treatment tank is obtained, and the volume of the coal slurry water injected into the coal slurry water treatment tank is recorded as ;

[0013] When the volume of coal slurry water injected into the coal slurry water treatment tank =V max When the intelligent dosing control terminal generates a first control instruction, the first control instruction is sent to the electric ball valve arranged in the coal slurry water input pipeline.

[0014] Furthermore, the electric ball valve in the coal slurry water input pipeline closes the coal slurry water input pipeline according to the first control instruction.

[0015] The density of the coal slime water in the coal slime water treatment tank is obtained by using a densitometer installed in the coal slime water treatment tank, and the density of the coal slime water obtained is recorded as ;

[0016] Set the threshold interval of coal slime water density, denoted as ( , ];

[0017] The density of the coal slurry water in the coal slurry water treatment pool is compared with the coal slurry water density threshold range, and corresponding control instructions are generated according to the comparison result, and the control instructions include a second control instruction, a third control instruction, and a fourth control instruction.

[0018] Furthermore, when the density of the coal slurry in the coal slurry treatment tank is When the second control instruction is generated, the second control instruction is sent to the electric ball valve in the dosing pipeline;

[0019] The electric ball valve in the dosing pipeline opens the dosing pipeline according to the second control instruction, and adds the agent into the coal slurry water treatment pool. When the amount of the added agent reaches V 0When the dosing pipe is closed.

[0020] Furthermore, when the density of the coal slurry in the coal slurry treatment tank is ∈( , ], a third control instruction is generated, and the third control instruction is sent to the electric ball valve in the dosing pipeline;

[0021] The electric ball valve in the dosing pipeline opens the dosing pipeline according to the third control instruction, and adds the agent into the coal slurry water treatment pool. When the amount of the added agent reaches V 1 When the dosing pipe is closed.

[0022] Furthermore, when the density of the coal slurry in the coal slurry treatment tank is > When the fourth control instruction is generated, the fourth control instruction is sent to the electric ball valve in the dosing pipeline;

[0023] The electric ball valve in the dosing pipeline opens the dosing pipeline according to the fourth control instruction, and adds the agent into the coal slurry water treatment pool. When the amount of the added agent reaches V 2 When the dosing pipe is closed.

[0024] Furthermore, after the addition of the reagent is completed, the intelligent dosing control terminal generates a stirring instruction and sends the stirring instruction to the coal slurry water mixer;

[0025] The coal slime water mixer stirs the coal slime water and reagents in the coal slime water treatment pool according to the stirring instructions, fully mixes the added reagents with the coal slime water, accelerates the precipitation of minerals in the coal slime water, and completes the stirring of the coal slime water and the reagents after the set time;

[0026] After the stirring is completed, a fifth control instruction is generated, and the fifth control instruction is sent to the electric ball valve installed in the coal slurry water output pipeline;

[0027] The electric ball valve opens the coal slurry water output pipe according to the fifth control instruction to discharge the coal slurry water after stirring. After the discharge of the coal slurry water is completed, the coal slurry water output pipe is closed and the coal slurry water input pipe is opened at the same time to carry out a new round of coal slurry water treatment.

[0028] Compared with the prior art, the beneficial effects of the present invention are: by real-time collection of the density and volume of the coal slime water to be treated, and intelligent addition of the amount of reagents that match it, on the one hand, the amount of reagents used can be accurately controlled, avoiding insufficient or excessive use of reagents, thereby improving the intelligent technical level and processing efficiency of coal slime water treatment, greatly reducing the intervention of human subjective factors, and reducing the work intensity of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a flow chart of the present invention. DETAILED DESCRIPTION

[0030] like Figure 1 As shown, a method for improving the efficiency of coal slime water treatment comprises the following steps:

[0031] Step S1: installing densitometers for measuring the density of coal slime water at different locations in the coal slime water treatment pool, and installing flow meters and electric ball valves on the coal slime water input pipe, coal slime water output pipe and dosing pipe leading to the coal slime water treatment pool;

[0032] Step S2: Obtain the density value of the coal slurry water and the flow value of the coal slurry water entering the coal slurry water treatment pool through the installed density meter and flow meter, and upload the obtained coal slurry water density value and coal slurry water flow value to the intelligent dosing control terminal;

[0033] Step S3: the intelligent dosing control terminal processes the obtained coal slurry water density value and coal slurry water flow value to generate corresponding control instructions;

[0034] Step S4: the electric ball valve controls the opening or closing of the dosing pipeline according to the generated control instruction.

[0035] It should be further explained that, in the specific implementation process, the coal slurry water treatment tank is set with a maximum allowable volume, and the maximum allowable volume of the coal slurry water treatment tank is recorded as V max ;

[0036] The flow rate value of the coal slurry water injected into the coal slurry water treatment tank is obtained according to the flow meter installed in the coal slurry water input pipeline, and the obtained flow rate value is uploaded to the intelligent dosing control terminal;

[0037] According to the obtained flow value, the volume of the coal slurry water injected into the coal slurry water treatment tank is obtained, and the volume of the coal slurry water injected into the coal slurry water treatment tank is recorded as ;

[0038] When the volume of coal slurry water injected into the coal slurry water treatment tank =V max When the intelligent dosing control terminal generates a first control instruction, and sends the first control instruction to the electric ball valve arranged in the coal slurry water input pipeline;

[0039] The electric ball valve closes the coal slurry water input pipeline according to the first control instruction.

[0040] The density of the coal slime water in the coal slime water treatment tank is obtained by using a densitometer installed in the coal slime water treatment tank, and the density of the coal slime water obtained is recorded as ;

[0041] Set the threshold interval of coal slime water density, denoted as ( , ];

[0042] When the density of the coal slurry in the coal slurry treatment tank is When the second control instruction is generated, the second control instruction is sent to the electric ball valve in the dosing pipeline;

[0043] The electric ball valve in the dosing pipeline opens the dosing pipeline according to the second control instruction, and adds the agent into the coal slurry water treatment pool. When the amount of the added agent reaches V 0 When the dosing pipe is closed,

[0044] When the density of the coal slurry in the coal slurry treatment tank is ∈( , ], a third control instruction is generated, and the third control instruction is sent to the electric ball valve in the dosing pipeline;

[0045] The electric ball valve in the dosing pipeline opens the dosing pipeline according to the third control instruction, and adds the agent into the coal slurry water treatment pool. When the amount of the added agent reaches V 1 When the dosing pipe is closed,

[0046] When the density of the coal slurry in the coal slurry treatment tank is > When the fourth control instruction is generated, the fourth control instruction is sent to the electric ball valve in the dosing pipeline;

[0047] The electric ball valve in the dosing pipeline opens the dosing pipeline according to the fourth control instruction, and adds the agent into the coal slurry water treatment pool. When the amount of the added agent reaches V 2 When the dosing pipe is closed.

[0048] After the addition of reagents is completed, the intelligent dosing control terminal generates a stirring instruction and sends the stirring instruction to the coal slurry water mixer;

[0049] The coal slime water mixer stirs the coal slime water and reagents in the coal slime water treatment pool according to the stirring instructions, fully mixes the added reagents with the coal slime water, accelerates the precipitation of minerals in the coal slime water, and completes the stirring of the coal slime water and the reagents after the set time;

[0050] After the stirring is completed, a fifth control instruction is generated, and the fifth control instruction is sent to the electric ball valve installed in the coal slurry water output pipeline;

[0051] The electric ball valve opens the coal slurry water output pipe according to the fifth control instruction to discharge the coal slurry water after stirring. After the discharge of the coal slurry water is completed, the coal slurry water output pipe is closed and the coal slurry water input pipe is opened at the same time to carry out a new round of coal slurry water treatment.

[0052] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A method for improving the efficiency of coal slime water treatment, characterized in that: The following steps are involved: Step S1: installing densitometers for measuring the density of coal slime water at different locations in the coal slime water treatment pool, and installing flow meters and electric ball valves on the coal slime water input pipe, coal slime water output pipe and dosing pipe leading to the coal slime water treatment pool; Step S2: Obtain the density value of the coal slurry water and the flow value of the coal slurry water entering the coal slurry water treatment pool through the installed density meter and flow meter, and upload the obtained coal slurry water density value and coal slurry water flow value to the intelligent dosing control terminal; Step S3: the intelligent dosing control terminal processes the obtained coal slurry water density value and coal slurry water flow value to generate corresponding control instructions; Step S4: the electric ball valve controls the opening or closing of the dosing pipeline according to the generated control instruction.

2. A method for improving the efficiency of coal slime water treatment according to claim 1, characterized in that: The coal slurry water treatment tank is provided with a maximum allowable volume, which is denoted as V max。 3. A method for improving the efficiency of coal slime water treatment according to claim 2, characterized in that: The flow rate value of the coal slurry water injected into the coal slurry water treatment tank is obtained according to the flow meter installed in the coal slurry water input pipeline, and the obtained flow rate value is uploaded to the intelligent dosing control terminal; According to the obtained flow value, the volume of the coal slurry water injected into the coal slurry water treatment tank is obtained, and the volume of the coal slurry water injected into the coal slurry water treatment tank is recorded as ; When the volume of coal slurry water injected into the coal slurry water treatment tank =V max When the intelligent dosing control terminal generates a first control instruction, the first control instruction is sent to the electric ball valve arranged in the coal slurry water input pipeline.

4. A method for improving the efficiency of coal slime water treatment according to claim 3, characterized in that: The electric ball valve in the coal slurry water input pipeline closes the coal slurry water input pipeline according to the first control instruction.

5. Obtain the density of the coal slime water in the coal slime water treatment tank using the density meter set in the coal slime water treatment tank, and record the density of the coal slime water obtained as ; Set the threshold interval of coal slime water density, denoted as ( , ]; The density of the coal slurry water in the coal slurry water treatment pool is compared with the coal slurry water density threshold range, and corresponding control instructions are generated according to the comparison result, and the control instructions include a second control instruction, a third control instruction, and a fourth control instruction.

6. A method for improving the efficiency of coal slime water treatment according to claim 4, characterized in that: When the density of the coal slurry in the coal slurry treatment tank is When the second control instruction is generated, the second control instruction is sent to the electric ball valve in the dosing pipeline; The electric ball valve in the dosing pipeline opens the dosing pipeline according to the second control instruction to add reagents into the coal sludge water treatment pool. When the amount of the added reagents reaches V0, the dosing pipeline is closed.

7. A method for improving the efficiency of coal slime water treatment according to claim 5, characterized in that: When the density of the coal slurry in the coal slurry treatment tank is ∈( , ], a third control instruction is generated, and the third control instruction is sent to the electric ball valve in the dosing pipeline; The electric ball valve in the dosing pipeline opens the dosing pipeline according to the third control instruction to add reagents into the coal sludge water treatment pool. When the amount of the added reagents reaches V1, the dosing pipeline is closed.

8. A method for improving the efficiency of coal slime water treatment according to claim 6, characterized in that: When the density of the coal slurry in the coal slurry treatment tank is > When the fourth control instruction is generated, the fourth control instruction is sent to the electric ball valve in the dosing pipeline; The electric ball valve in the dosing pipeline opens the dosing pipeline according to the fourth control instruction to add reagents into the coal sludge water treatment pool. When the amount of the added reagents reaches V2, the dosing pipeline is closed.

9. A method for improving the efficiency of coal slime water treatment according to claim 7, characterized in that: After the addition of reagents is completed, the intelligent dosing control terminal generates a stirring instruction and sends the stirring instruction to the coal slurry water mixer; The coal slime water mixer stirs the coal slime water and reagents in the coal slime water treatment pool according to the stirring instructions, fully mixes the added reagents with the coal slime water, accelerates the precipitation of minerals in the coal slime water, and completes the stirring of the coal slime water and the reagents after the set time; After the stirring is completed, a fifth control instruction is generated, and the fifth control instruction is sent to the electric ball valve installed in the coal slurry water output pipeline; The electric ball valve opens the coal slurry water output pipe according to the fifth control instruction to discharge the coal slurry water after stirring. After the discharge of the coal slurry water is completed, the coal slurry water output pipe is closed and the coal slurry water input pipe is opened at the same time to carry out a new round of coal slurry water treatment.

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