CN201380045Y - Mine water desalination pretreatment device and reverse osmosis desalination equipment - Google Patents

Abstract

The utility model provides a mine water desalination pretreatment device and reverse osmosis desalination equipment, comprising: a water pump, a laminated filter and an ultrafilter, and the water pump, the laminated filter and the ultrafilter are sequentially connected through pipelines. The utility model makes the pretreatment process of the reverse osmosis desalination simpler, the treatment effect is better, and the volume of the device is reduced.

Description

Mine water desalination pretreatment device and reverse osmosis desalination equipment

technical field

The utility model relates to water treatment equipment, in particular to a pretreatment device for mine water desalination and reverse osmosis desalination equipment.

Background technique

Most of my country's coal mines are located in water-scarce areas, and the utilization of mine water resources has become the main way to solve the shortage of water resources in mining areas. At present, domestic mine water desalination treatment mainly adopts reverse osmosis desalination treatment process. In order to ensure the long-term stable and reliable operation of the reverse osmosis system, the pretreatment of the reverse osmosis system is very important. The pretreatment of the reverse osmosis system must meet the water quality requirements of the reverse osmosis influent, that is, the turbidity <0.3NTU, and the pollution index FI value <4. The main purpose of pretreatment is to remove suspended solids, turbidity, color, organic matter, etc. If these substances are not removed, they will accumulate on the surface of the membrane to contaminate the membrane and precipitate in solid form, deteriorating the performance of the membrane. Eventually, the water permeability and desalination rate of the membrane will decrease, which will affect the water production and water quality.

At present, the domestic coal mine water reverse osmosis desalination pretreatment process adopts traditional four-stage filtration of multi-media filter, activated carbon filter, precision filter and security filter. The treatment process is complicated, the treatment effect is poor, and the volume is large, the operation is complicated, and the labor intensity is high, so it is difficult to adapt to the current development level of coal mines in my country.

Utility model content

The first purpose of the utility model is to provide a pretreatment device for mine water desalination, which makes the pretreatment process of reverse osmosis desalination simpler, has better treatment effect, and reduces the volume of the device.

The second purpose of the utility model is to provide a reverse osmosis desalination device, which simplifies the desalination pretreatment process and improves the desalination effect.

In order to achieve the first objective, the utility model provides a pretreatment device for mine water desalination, including: a water pump, a laminated filter and an ultrafilter, and the water pump, the laminated filter and the ultrafilter are connected in sequence through pipelines.

It can be seen from the above technical scheme that the utility model mine water desalination pretreatment device forms a whole device with water pump, laminated filter and ultrafilter, which has the following advantages: the pretreatment process is simplified, and the work is completed through two kinds of filters ; The treatment effect is good; the total volume of the device is reduced, and the requirement for installation space is reduced; the operation is simple, and the labor intensity of the laborers is reduced.

In order to achieve the second purpose, the utility model also provides a reverse osmosis desalination equipment, including a mine water desalination pretreatment device, a high pressure pump and a reverse osmosis desalination device, the water outlet of the mine water desalination pretreatment device, a high pressure pump and The reverse osmosis desalination device is connected sequentially through pipelines, and the pretreatment device for mine water desalination includes: a water pump, a laminated filter and an ultrafilter, and the water pump, laminated filter and ultrafilter are connected in sequence through pipelines.

From the above technical solutions, it can be known that the reverse osmosis desalination equipment of the utility model can reduce the degree of contamination of the reverse osmosis membrane by adding a pretreatment device for mine water desalination, and prevent the water permeability and desalination rate of the membrane from decreasing due to contamination of the membrane.

The utility model will be described in further detail below through specific embodiments in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is the structural representation of the pretreatment device of utility model mine water desalination;

Fig. 2 is a structural schematic diagram of the utility model reverse osmosis desalination equipment.

Detailed ways

Embodiment one

As shown in Figure 1, the embodiment of the utility model is a pretreatment device for mine water desalination, including: a water pump 1, a laminated filter 2 and an ultrafilter 3, and the water pump 1, the laminated filter 2 and the ultrafilter The filters 3 are successively connected by pipes 5 .

In a specific application, the water pump 1 , the laminated filter 2 and the ultrafilter 3 are fixed in the same frame 4 , and the mine water is pumped into the pipeline 5 through the water pump 1 . The mine water first flows into the laminated filter 2 through the pipeline 5, through which the suspended matter such as sand and rust in the mine water is removed, and the content of organic matter in the mine water is reduced; the water treated by the laminated filter 2 passes through the pipeline 5. It flows into the ultrafilter 3 and passes through the ultrafilter 3 to completely filter out bacteria, rust, colloids, macromolecular organic matter and other substances in the water, retain trace elements beneficial to human health, and purify water for microorganisms, chromaticity and turbidity. The indicators meet the requirements of the "GB5749-2006 Hygienic Standard for Drinking Water".

The mine water treated by the mine water desalination pretreatment device has a water output capacity of 5-30t/h, the water quality of the effluent can reach turbidity<0.3NTU, and the pollution index FI value<4, so as to achieve the pretreatment of the reverse osmosis desalination system Require.

As can be seen from the above technical scheme, a pretreatment device for mine water desalination of the utility model has the following characteristics:

1. The pretreatment process is simplified, the treatment effect is good, and the turbidity removal rate, pollution index FI value removal rate and water recovery rate are improved;

2. The operation is simple, which reduces the labor intensity of workers;

3. The total volume of the device is small, which reduces the requirement for installation space and reduces the manufacturing cost of the whole set of equipment.

Embodiment two

A fully automatic backwashing controller is provided in the laminated filter 2 . The automatic backwashing controller can complete the entire automatic backwashing process within seconds without interrupting the work. Backwashing is automatically started by the set time or pressure difference signal, and the backwashing valve changes the direction of water flow in the filter unit to wash out the impurities trapped on the discs in the laminated filter 2. The workload of the staff to clean the filter is reduced, and a very good cleaning effect can be achieved with a small amount of self-use water.

Embodiment three

A filter 6 is added at the water inlet of the water pump 1 . By adding the filter 6, it is possible to prevent large particles of impurities from entering the whole device, and avoid reducing the working efficiency of the water pump 1 and the laminated filter 2.

Embodiment four

As shown in Figure 2, a reverse osmosis desalination device in this embodiment includes a pretreatment device for mine water desalination, a high-pressure pump 8 and a reverse osmosis desalination device 7, the outlet of the pretreatment device for mine water desalination, the high-pressure pump The reverse osmosis desalination device is connected sequentially through the pipeline 5, and the pretreatment device of the mine water desalination includes: a water pump 1, a laminated filter 2 and an ultrafilter 3, and the water pump 1, the laminated filter 2 and the ultrafilter 3 are connected in sequence through pipeline 5.

The mine water treated by the mine water desalination pretreatment device flows into the water inlet of the high pressure pump 8 through the water outlet. The mine water flows into the reverse osmosis desalination device 7 after being pressurized by the high-pressure pump 8. The reverse osmosis desalination treatment of the reverse osmosis desalination device 7 can remove the salt in the water. Simple, stable water quality, low operating costs, no chemical pollutants and other outstanding advantages.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit of the technical solutions of the various embodiments of the present invention. and range.

Claims (6)

1. A pretreatment device for mine water desalination, characterized by comprising: a water pump, a laminated filter and an ultrafilter, the water pump, the laminated filter and the ultrafilter are connected in sequence through pipelines. 2. The pretreatment device for mine water desalination according to claim 1, characterized in that: the laminated filter is provided with a fully automatic backwash controller. 3. The pretreatment device for mine water desalination according to claim 1 or 2, characterized in that a filter is added at the water inlet of the water pump. 4. A reverse osmosis desalination device, comprising a mine water desalination pretreatment device, a high-pressure pump and a reverse osmosis desalination device, the water outlet of the mine water desalination pretreatment device, the high-pressure pump and the reverse osmosis desalination device are connected in sequence through pipelines , It is characterized in that: the pretreatment device for mine water desalination includes: a water pump, a laminated filter and an ultrafilter, and the water pump, the laminated filter and the ultrafilter are connected in sequence through pipelines. 5. The reverse osmosis desalination equipment according to claim 4, characterized in that: the laminated filter is provided with a fully automatic backwash controller. 6. The reverse osmosis desalination equipment according to claim 4 or 5, characterized in that a filter is added at the water inlet of the water pump.

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