Cooling water countercurrent treatment system for production line for preparing potassium chloride from sintering fly ash

Abstract

The utility model discloses a cooling water countercurrent treatment system for a production line for preparing potassium chloride from sintering fly ash. The cooling water countercurrent treatment system comprises a mounting frame arranged above a cooling tower, a reverse flow fan is arranged on the mounting frame, and the air outlet direction of the reverse flow fan is opposite to the air outlet direction of the cooling tower; a side surrounding plate is arranged on the side of an air flow hedging area of the countercurrent fan and the cooling tower, a drainage pipe is arranged at the bottom of the side surrounding plate, and the side surrounding plate is used for blocking water vapor in the hedging area and cooling the water vapor into liquid; the reverse flow fan is installed above the cooling tower, so that reverse blowing force can be generated on water vapor discharged from the cooling tower, the water vapor drifts around, the water vapor is prevented from drifting outwards through the side surrounding plates, meanwhile, the water vapor is cooled into liquid through the side surrounding plates, the liquid flows downwards along the side surrounding plates under the action of gravity, and the cooling effect is improved. Therefore, the water vapor can be prevented from diffusing to the periphery of the cooling tower, and the utilization rate of the cooling water is improved at the same time.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooling water treatment, in particular to a cooling water countercurrent treatment system for a production line for preparing potassium chloride by sintering dust removal ash. Background Art

[0002] In the process of producing potassium chloride from electrostatic precipitator ash at the sintering machine head, a large amount of hot industrial wastewater will be generated. If it is discharged directly, it will cause a waste of water resources and cause water pollution.

[0003] At present, the common treatment method is to use cooling towers to cool down hot industrial wastewater and then carry out subsequent water treatment, so as to realize the recycling of system water resources and achieve the effect of saving water and energy.

[0004] However, when the cooling tower cools down the hot industrial wastewater, the fan on top of the cooling tower will extract some of the water vapor in the hot industrial wastewater. After being extracted, the water vapor will be directly discharged into the air and will float around the cooling tower with the wind, corroding the equipment around the cooling tower or the plants on the ground. Utility Model Content

[0005] The utility model aims to provide a cooling water countercurrent treatment system for a production line for preparing potassium chloride from sintering dust removal ash, so as to reduce the emission of water vapor and the corrosion degree of water vapor to surrounding objects.

[0006] The utility model adopts the following technical scheme: a cooling water countercurrent treatment system for a production line for preparing potassium chloride from sintering dust removal ash, comprising a mounting frame arranged above a cooling tower;

[0007] A counterflow fan is arranged on the mounting frame, and the air outlet direction of the counterflow fan is arranged opposite to the air outlet direction of the cooling tower;

[0008] A side enclosing plate is arranged on the side of the wind flow counter-attack area between the counter-flow fan and the cooling tower, and a drainage pipe is arranged at the bottom of the side enclosing plate. The side enclosing plate is used to block the water vapor in the counter-attack area and cool it into liquid.

[0009] Furthermore, a water flow trough is provided at the bottom of the side enclosing plate, and the water flow trough is connected to the cooling pool through a drainage pipe.

[0010] Furthermore, the water outlet end of the drain pipe is located below the liquid surface in the cooling pool.

[0011] Furthermore, the top end of the side enclosing plate is fixedly connected to the mounting frame.

[0012] Furthermore, the bottom end of the side enclosing plate is located below the cooling tower.

[0013] Furthermore, the counterflow fan and the exhaust fan of the cooling tower are coaxially arranged.

[0014] The beneficial effect of the utility model is that the utility model can generate a back-blowing force on the water vapor discharged from the cooling tower by installing a counter-flow fan above the cooling tower, so that the water vapor is dispersed to the surroundings, and then the water vapor is blocked from dispersing outwards by the side surrounding plates. At the same time, the side surrounding plates cool the water vapor into liquid, and the liquid flows downward along the side surrounding plates under the action of gravity, and is finally sent to the cooling pool through the drain pipe, which can prevent the water vapor from diffusing to the surroundings of the cooling tower and improve the utilization rate of the cooling water. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a cooling water countercurrent treatment system for a production line for preparing potassium chloride from sintering dust ash according to an embodiment of the utility model;

[0016] Figure 2 The present invention is a schematic cross-sectional structure diagram of a cooling water countercurrent treatment system for a production line for preparing potassium chloride from sintering dust ash according to an embodiment of the present invention.

[0017] Among them: 10. Side enclosure; 11. Water flow channel; 12. Drain pipe;

[0018] 20. Cooling pool; 30. Water distribution pipe; 40. Counterflow fan; 50. Cooling tower. DETAILED DESCRIPTION

[0019] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0020] In the actual application of cooling towers, the water vapor of industrial wastewater is corrosive. In the long run, it will have a serious impact on the surrounding environment, not only threatening the health of workers, but also increasing the cost of on-site equipment shutdown and maintenance, restricting production efficiency.

[0021] The utility model discloses a cooling water countercurrent treatment system for a production line for preparing potassium chloride from sintered dust, such as Figure 1 and Figure 2 As shown, it includes a mounting frame arranged above the cooling tower 50; a counterflow fan 40 is arranged on the mounting frame, and the air outlet direction of the counterflow fan 40 is arranged opposite to the air outlet direction of the cooling tower 50; a side enclosing plate 10 is arranged on the side of the wind flow counter-attack area between the counterflow fan 40 and the cooling tower 50, and a drain pipe 12 is arranged at the bottom of the side enclosing plate 10, and the side enclosing plate 10 is used to block the water vapor in the counter-attack area and cool it into liquid.

[0022] The utility model can generate a back-blowing force on the water vapor discharged from the cooling tower 50 by installing a counterflow fan 40 above the cooling tower 50, so that the water vapor is dispersed to the surroundings, and then the water vapor is blocked from dispersing outwards by the side surrounding plate 10. At the same time, the side surrounding plate 10 cools the water vapor into liquid. The liquid flows downward along the side surrounding plate 10 under the action of gravity, and is finally sent to the cooling pool 20 through the drain pipe 12, which can prevent the water vapor from diffusing around the cooling tower 50 and improve the utilization rate of cooling water. This solution can be implemented in a relatively narrow area around the factory building.

[0023] In one embodiment, the mounting frame can be designed as a flat plate, and the four sides of the flat plate are fixedly connected to the top of the side enclosure plate 10, so that the mounting frame and the side enclosure plate 10 form an integral structure, which is conducive to the overall structural stability. The side enclosure plate 10 is made of lightweight corrosion-resistant plastic insulation material.

[0024] In this embodiment, a water flow trough 11 is provided at the bottom of the side enclosing plate 10 , and the water flow trough 11 is connected to the cooling pool 20 through a drainage pipe 12 .

[0025] As an implementation form, the side enclosing plate 10 is composed of a plurality of flat plates of the same size, which are connected to each other to form a barrel shape, and are fully enclosed around the cooling tower 50, so that water vapor can be fully recovered. Moreover, the distance between each flat plate and the cooling tower 50 is equal to ensure that the water vapor collected by each part is uniform. In addition, the side enclosing plate 10 can also be designed in various shapes such as a cylinder.

[0026] In the embodiment of the utility model, the water outlet end of the drain pipe 12 is located below the liquid surface in the cooling pool 20. In this way, the length of the drain pipe 12 can be lengthened, thereby further reducing the temperature of the liquid. If necessary, a booster pump can also be added to the drain pipe 12 to increase the smoothness of drainage.

[0027] In this embodiment, since the temperature of the water vapor discharged from the counter-pressure area is higher than normal temperature, when the water vapor touches the inner wall of the side enclosure plate 10, the temperature of the side enclosure plate 10 is lower than the temperature of the water vapor, so that the side enclosure plate 10 can cool the water vapor into liquid for collection. Of course, there may be a step where the water vapor remains in a gaseous state, so when a booster pump is added, part of the water vapor that remains in a gaseous state can also be sucked into the cooling pool. When this part of the water vapor is discharged from the end of the drain pipe 12, it will enter the cooling water, and the cooling water will liquefy the mixed water vapor into liquid, thereby minimizing the discharge of water vapor.

[0028] As a specific implementation, the bottom end of the side enclosure plate 10 is located below the cooling tower 50 to facilitate higher water vapor collection efficiency.

[0029] Regarding the relative positions of the counterflow fan 40 and the cooling tower 50, in order to make the wind forces of the two opposite, the exhaust fan of the counterflow fan 40 and the cooling tower 50 are coaxially arranged. A common cooling tower 50 is provided with a fan at the top to discharge the hot air and water vapor in the cooling tower to the outside. In this embodiment, the height of the water vapor discharged from the cooling tower 50 can be calculated first, and then the height of the counterflow fan 40 can be designed according to the height, so that the wind blown by the counterflow fan 40 reaches the highest point of the water vapor. The wind force is small, so that the water vapor in the intersection area of ​​the wind blown by the counterflow fan 40 and the water vapor will drift around under the action of the two, and then fall on the side enclosure plate 10.

Claims

1. A cooling water countercurrent treatment system for a production line for preparing potassium chloride from sintering dust, characterized in that: It comprises a mounting frame arranged above a cooling tower (50); A counterflow fan (40) is arranged on the mounting frame, and the air outlet direction of the counterflow fan (40) is arranged opposite to the air outlet direction of the cooling tower (50); A side enclosing plate (10) is arranged on the side of the wind flow counter-attack area between the counter-flow fan (40) and the cooling tower (50), and a drainage pipe (12) is arranged at the bottom of the side enclosing plate (10). The side enclosing plate (10) is used to block the water vapor in the counter-attack area and cool it into liquid.

2. The cooling water countercurrent treatment system for a sintering dust removal ash production line for preparing potassium chloride according to claim 1, characterized in that: A water flow trough (11) is provided at the bottom of the side enclosing plate (10), and the water flow trough (11) is connected to the cooling pool (20) through the drainage pipe (12).

3. A cooling water countercurrent treatment system for a sintering dust removal ash production line for preparing potassium chloride as claimed in claim 2, characterized in that: The water outlet end of the drainage pipe (12) is located below the liquid surface in the cooling pool (20).

4. A cooling water countercurrent treatment system for a sintering dust removal ash production line for preparing potassium chloride as claimed in claim 2 or 3, characterized in that: The top end of the side enclosing plate (10) is fixedly connected to the mounting frame.

5. A cooling water countercurrent treatment system for a sintering dust removal ash production line for preparing potassium chloride as claimed in claim 4, characterized in that: The bottom end of the side enclosing plate (10) is located below the cooling tower (50).

6. A cooling water countercurrent treatment system for a production line for preparing potassium chloride from sintering dust as claimed in claim 5, characterized in that: The counterflow fan (40) and the exhaust fan of the cooling tower (50) are coaxially arranged.

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