CN110608615A - A cooling spray system for high carbon ferrochrome smelting - Google Patents

Abstract

The invention provides a cooling spray system for high-carbon ferrochrome smelting, which belongs to the technical field of high-carbon ferrochrome smelting and comprises a cooling tower, wherein the top of the cooling tower is connected with a fan cover, a spray system is arranged inside the cooling tower, a radiating fin is arranged below the spray system, a water storage tank is arranged below the radiating fin, a plurality of adsorption balls are arranged inside the water storage tank, a sewage collecting ring is arranged inside the adsorption balls, a magnetic block is arranged on the outer layer of the sewage collecting ring, a sealing plate is arranged on one side of the magnetic block, and the top of the sealing plate is in contact with the bottom of the. The invention has high heat exchange speed, can quickly achieve the purposes of cooling and cooling, can also carry out primary filtration on circulating water, reduces particles in water and ensures the service performance of the cooling tower.

Description

A cooling spray system for high carbon ferrochrome smelting

technical field

The invention belongs to the technical field of high-carbon ferrochrome smelting, and in particular relates to a cooling spray system for high-carbon ferrochrome smelting.

Background technique

High-carbon ferrochrome is the most important raw material for producing stainless steel, mainly used in the production of stainless steel, ball bearing steel, tool steel, nitrided steel, heat-strength steel, quenched and tempered steel, carburized steel and hydrogen-resistant steel. Chromium plays a decisive role in stainless steel, and there is only one element that determines the properties of stainless steel, which is chromium. Every stainless steel must contain a certain amount of chromium.

The smelting methods of high carbon ferrochromium include blast furnace method, electric furnace method, plasma furnace method and so on. Among them, the basic principle of electric furnace smelting high-carbon ferrochromium is to use carbon to reduce the oxides of chromium and iron in chromium ore. The starting temperature of carbon reduction of chromium oxide to form CnC2 is 1373K, the starting temperature of the reaction of forming Cr towel is 1403K, and the starting temperature of the reaction of reducing chromium is 1523K, so what is obtained when carbon is reduced to chromium ore is chromium carbide instead of metal chromium. The carbon content in ferrochrome depends on the reaction temperature.

Cooling towers have been widely used in iron and steel metallurgy. Cooling towers mainly place heat exchangers in the towers to ensure the cooling effect through the heat exchange of circulating air, spray water and circulating water. The spray system is an important part of the cooling tower, and the spray system of the existing cooling tower cannot realize all-round spray cooling action.

Contents of the invention

The purpose of the present invention is to provide a high-carbon ferrochrome smelting cooling spray system, which has a fast heat exchange rate, can quickly achieve the purpose of cooling and cooling, and can also perform preliminary filtration on circulating water to reduce particulate matter in the water, ensuring that the cooling tower performance.

The technical scheme adopted by the present invention to achieve the above object is: a high-carbon ferrochromium smelting cooling spray system, including a cooling tower, a fan cover connected to the top of the cooling tower, a spray system inside the cooling tower, and a spray system below the spray system. There are heat dissipation fins, and a water storage pool is provided under the heat dissipation fins. There are several adsorption balls inside the water storage pool. A dirt collection ring is arranged inside the adsorption ball. A magnetic block is provided on the outer layer of the sewage collection ring, and a There is a sealing plate, and the top of the sealing plate is in contact with the bottom of the magnetic block. The cooling system enters a large amount of air through the air inlets on both sides of the cooling tower, and performs rapid heat exchange on the water in the tower to reduce the temperature of the water. Water vapor will be generated at the contact port of the air and water, which will be removed by the exhaust fan. The cooling process The reclaimed water is not only in contact with the air but also with the cooling fins to further improve the cooling efficiency. The cooled water will flow into the storage tank through the deflector. The adsorption balls in the storage tank can adsorb the particles and small particles of impurities in the cooling water. The collection ensures the performance of the cooling tower, and also ensures that the water cooled by the cooling tower can be recycled again.

Preferably, an exhaust fan is arranged inside the fan cover, the exhaust fan is fixedly connected with a rotating shaft, the top of the first rotating shaft is connected with a first motor, and the first motor is fixedly connected with the top of the fan cover. The exhaust fan is separately installed in the air cover, which improves the firmness of the whole device. When the water is pumped into the spray system, the exhaust fan will automatically open, and cooperate with the overall operation of the device to speed up the discharge of the gas generated after the cooling and heat exchange into the cooling tower. .

As a preference, symmetrical water inlet main pipes are connected to the top of the sprinkler system, the water inlet end of the water inlet main pipe is connected to the water storage tank, and a water pump and a booster pump are sequentially provided on the water inlet main pipe. The water storage tank is connected to an external water source, and the water that needs to be cooled can be stored in the water storage tank. The water pump will first pump out the water in the water storage tank, and then the booster pump will provide power to pump the water into the spray system for spraying Systematic spraying.

As preferably, the sprinkler system includes a water shield, a second motor is installed on the top of the water shield, the output end of the second motor is connected to the top surface of the dispersion disc, the dispersion disc is conical and hollow inside, and the top of the dispersion disc is provided with an inlet. Water holes, water guide grooves are provided on the inclined surface of the dispersion plate, and several nozzles are arranged on the bottom surface of the dispersion plate. The sprinkler system of this setting has two spraying methods, which speed up the water spraying and have a wider spraying area, which is conducive to the gravity flow of water and the natural air cooling effect, which improves the cooling efficiency, and the water tank is dispersed into a conical In the disc, start the second motor to make the whole dispersing disc rotate rapidly. The nozzle at the bottom of the dispersing disc will spray the water in the dispersing disc downwards. There is also a water guide groove on the surface of the dispersing disc. The water main can flush the water into the water guide groove on the surface of the dispersing plate. The water guide groove will cause the water to generate centrifugal force, and all the water inside the water guide groove will be thrown out, so that the water will become granular. Direct contact can greatly reduce the water temperature, and the heat exchange is also faster, and the generated water vapor will also be discharged by the exhaust fan.

Preferably, air inlets are provided on both sides of the cooling tower, one end of the air inlet is located inside the cooling tower, a deflector is connected to the bottom of the air inlet inside the cooling tower, and an air inlet fan is arranged inside the air inlet. The air inlets on both sides of the cooling tower are used for air intake. The air intake fan can effectively draw air into the cooling tower. The deflector connected to the bottom of the air inlet is used to guide the cooled water flow.

Preferably, both ends of the cooling fins are fixed by a pressing plate, and the pressing plate is fixedly connected to the inner wall of the cooling tower. The heat dissipation fins can assist in heat dissipation. The heat exchange of the water flow through the air and then the heat dissipation of the heat dissipation fins accelerates the heat exchange rate and shortens the cooling time of the water flow.

Preferably, elastic components are arranged symmetrically in the water storage tank, and elastic ropes are connected between the symmetrically arranged elastic components, and several adsorption balls are interspersed on the elastic ropes, and a magnetic layer is arranged on the surface of the adsorption balls, and the surface of the magnetic layer is evenly distributed with water-permeable holes , The adsorption ball is equipped with a dirt collection ring, the middle of the dirt collection ring is provided with a second rotating shaft, the surface of the dirt collection ring is surrounded by a stirring rod, the end of the stirring rod is bent to one side, and the middle part of the stirring rod is provided with an activated carbon layer. The intake fan in the air inlet draws the air from the outside of the cooling tower into the cooling tower for counter cooling with the sprayed water. The cooling water will be concentrated into the water storage tank through the deflector, and the drawn air is untreated and sprayed with water. After the cooling and heat exchange, the cooling water will contain particulate dust, and the elastic component will drive the elastic rope to shake up and down in the storage tank. During the shaking process, the cooling water in the storage tank will quickly penetrate into the adsorption ball through the permeable hole, speeding up the process. The speed at which cooling water enters the interior of the adsorption ball, the magnetic properties of the outer layer of the adsorption ball will absorb the metal particles in the water, the second rotating shaft inside the adsorption ball is driven by a motor (not shown in the motor figure), and the rotating shaft drives the stirring rod to rotate, because the stirring rod The special setting has a large disturbance force on the water flow and squeezes the water body in different directions. While speeding up the flow of the water body, it is beneficial to accelerate the contact and aggregation of fine suspended particles in the water body to form large particles, so as to facilitate the adsorption of activated carbon in the middle section of the stirring rod. There are multiple sealing plates on the surface of the dirt collecting ring, and the sealing plates are magnetically attracted to the fast magnetic force. When the dirty collecting ring rotates to a certain angle, the sealing plate at the top of the dirty collecting ring will be disengaged from the magnetic block, and large particles of impurities will be released. It sinks into the sewage collection ring by its own gravity, and the impurities entering the sewage collection ring cannot float out of the sewage collection ring again. When the sewage collection ring rotates downward, the sealing plate will be magnetically attracted, ensuring the performance of the cooling tower. , At the same time, it also ensures that the water cooled by the cooling tower can be recycled again.

Compared with the prior art, the beneficial effects of the present invention are: 1) the air inlets on both sides of the cooling tower enter a large amount of air, and the water in the tower is quickly heat exchanged to reduce the temperature of the water, and the air and water contact port Water vapor will be generated and removed by the exhaust fan. During the cooling process, the water will not only contact the air but also contact the cooling fins to further improve the cooling efficiency; 2) The spray system has two spraying methods, which speeds up the spraying of the water flow. At the same time, a wider spraying area is conducive to the gravity flow of water and the effect of natural air cooling, which improves the cooling efficiency; 3) The adsorption ball can completely absorb and collect the particulate matter in the water, ensuring the performance of the cooling tower. At the same time, it also ensures that the water cooled by the cooling tower can be recycled again.

Description of drawings

Fig. 1 is the internal structure schematic diagram of a kind of high-carbon ferrochrome smelting cooling spray system of the present invention;

Fig. 2 is the structural representation of spraying system of the present invention;

Fig. 3 is the top view of dispersion disk of the present invention;

4 is a schematic diagram of the internal structure of the adsorption ball of the present invention;

Fig. 5 is the structural representation of dirt collection ring of the present invention;

Fig. 6 is the experiment result figure of embodiment 3.

Explanation of reference signs: 1 cooling tower; 2 fan cover; 3 row of fans; 4 first motor; ;13 sprinkler system; 14 main water inlet; 15 pressurized pump; 16 deflector; 17 second motor; 18 water retaining cover; 19 water inlet; ; 24 elastic component; 25 elastic rope; 26 adsorption ball; 27 permeable hole; 28 activated carbon layer; 29 stirring rod; 30 second rotating shaft;

Detailed ways

Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail:

Example 1:

As shown in Figure 1-6, a high-carbon ferrochrome smelting cooling spray system includes a cooling tower 1, a fan cover 2 is connected to the top of the cooling tower 1, and a spray system 13 is installed inside the cooling tower 1. The spray system 13 The bottom is provided with heat dissipation fins 5, and a water storage tank 23 is provided below the heat dissipation fins 5. The inside of the water storage tank 23 is provided with a number of adsorption balls 26. The adsorption ball 26 is provided with a dirt collection ring 31, and the outer layer of the dirt collection ring 31 is provided with The magnetic block 32 is provided with a sealing plate 33 on one side of the magnetic block 32 , and the top of the sealing plate 33 is in contact with the bottom of the magnetic block 32 . The cooling system enters a large amount of air through the air inlets on both sides of the cooling tower, and performs rapid heat exchange on the water in the tower to reduce the temperature of the water. Water vapor will be generated at the contact port of the air and water, which will be removed by the exhaust fan. The cooling process The reclaimed water is not only in contact with the air but also with the cooling fins to further improve the cooling efficiency. The cooled water will flow into the storage tank through the deflector. The adsorption balls in the storage tank can adsorb the particles and small particles of impurities in the cooling water. The collection ensures the performance of the cooling tower, and also ensures that the water cooled by the cooling tower can be recycled again.

An exhaust fan 3 is arranged in the fan cover 2, and the exhaust fan 3 is fixedly connected with a rotating shaft 11, and the top of the first rotating shaft 11 is connected with a first motor 4, and the first motor 4 is fixedly connected with the fan cover 2 top. The exhaust fan is separately installed in the air cover, which improves the firmness of the whole device. When the water is pumped into the spray system, the exhaust fan will automatically open, and cooperate with the overall operation of the device to speed up the discharge of the gas generated after the cooling and heat exchange into the cooling tower. .

The top of the sprinkler system 13 is connected with a symmetrical water inlet main pipe 14, and the water inlet end of the water inlet main pipe 14 is connected with the water storage tank 10, and the water inlet main pipe 14 is provided with a water pump 9 and a booster pump 15 in sequence. The water storage tank is connected to an external water source, and the water that needs to be cooled can be stored in the water storage tank. The water pump will first pump out the water in the water storage tank, and then the booster pump will provide power to pump the water into the spray system for spraying Systematic spraying.

The sprinkler system 13 includes a water shield 18, the top of the water shield 18 is equipped with a second motor 17, the output end of the second motor 17 is connected to the top surface of the dispersion disc 22, the dispersion disc 22 is conical and hollow inside, and the dispersion disc 22 The top of the top is provided with water inlet hole 19, and the inclined surface of dispersion disc 22 is provided with water guide groove 21, and the bottom surface of dispersion disc 22 is provided with several nozzles 20. The sprinkler system of this setting has two spraying methods, which speed up the water spraying and have a wider spraying area, which is conducive to the gravity flow of water and the natural air cooling effect, which improves the cooling efficiency, and the water tank is dispersed into a conical In the disc, start the second motor to make the whole dispersing disc rotate rapidly. The nozzle at the bottom of the dispersing disc will spray the water in the dispersing disc downwards. There is also a water guide groove on the surface of the dispersing disc. The water main can flush the water into the water guide groove on the surface of the dispersing plate. The water guide groove will cause the water to generate centrifugal force, and all the water inside the water guide groove will be thrown out, so that the water will become granular. Direct contact can greatly reduce the water temperature, and the heat exchange is also faster, and the generated water vapor will also be discharged by the exhaust fan.

Both sides of the cooling tower 1 are provided with an air inlet 7, one end of the air inlet 7 is located inside the cooling tower 1, and the bottom of the air inlet 7 inside the cooling tower 1 is connected with a deflector 16, and the inside of the air inlet 7 is provided with an inlet fan8. The air inlets on both sides of the cooling tower are used for air intake. The air intake fan can effectively draw air into the cooling tower. The deflector connected to the bottom of the air inlet is used to guide the cooled water flow.

The two ends of the cooling fins 5 are fixed by the pressing plate 6 , and the pressing plate 6 is fixedly connected to the inner wall of the cooling tower 1 . The heat dissipation fins can assist in heat dissipation. The heat exchange of the water flow through the air and then the heat dissipation of the heat dissipation fins accelerates the heat exchange rate and shortens the cooling time of the water flow.

Elastic components 24 are symmetrically arranged in the water storage tank 23, and elastic ropes 25 are connected between the symmetrically arranged elastic components 24, and several adsorption balls 26 are interspersed on the elastic ropes 25, and a magnetic layer 34 is arranged on the surface of the adsorption balls 26, and the magnetic layer 34 The surface is evenly distributed with permeable holes 27, the inside of the adsorption ball 26 is provided with a dirt collecting ring 31, the middle part of the dirt collecting ring 31 is provided with a second rotating shaft 30, and the surface of the dirt collecting ring 31 is surrounded by a stirring rod 29, and the end of the stirring rod 29 is directed toward one side. The side is bent, and the middle section of the stirring rod 29 is provided with an active carbon layer 28 . The intake fan in the air inlet draws the air from the outside of the cooling tower into the cooling tower for counter cooling with the sprayed water. The cooling water will be concentrated into the water storage tank through the deflector, and the drawn air is untreated and sprayed with water. After the cooling and heat exchange, the cooling water will contain particulate dust, and the elastic component will drive the elastic rope to shake up and down in the storage tank. During the shaking process, the cooling water in the storage tank will quickly penetrate into the adsorption ball through the permeable hole, speeding up the process. The speed at which cooling water enters the interior of the adsorption ball, the magnetic properties of the outer layer of the adsorption ball will absorb the metal particles in the water, the second rotating shaft inside the adsorption ball is driven by a motor (not shown in the motor figure), and the rotating shaft drives the stirring rod to rotate, because the stirring rod The special setting has a large disturbance force on the water flow and squeezes the water body in different directions. While speeding up the flow of the water body, it is beneficial to accelerate the contact and aggregation of fine suspended particles in the water body to form large particles, so as to facilitate the adsorption of activated carbon in the middle section of the stirring rod. There are multiple sealing plates on the surface of the dirt collecting ring, and the sealing plates are magnetically attracted to the fast magnetic force. When the dirty collecting ring rotates to a certain angle, the sealing plate at the top of the dirty collecting ring will be disengaged from the magnetic block, and large particles of impurities will be released. It sinks into the sewage collection ring by its own gravity, and the impurities entering the sewage collection ring cannot float out of the sewage collection ring again. When the sewage collection ring rotates downward, the sealing plate will be magnetically attracted, ensuring the performance of the cooling tower. , At the same time, it also ensures that the water cooled by the cooling tower can be recycled again.

Embodiment 2;

A kind of high-carbon ferrochromium smelting cooling spray system of the present invention is in actual use: the water that needs to be cooled is poured into the water storage tank 10, and the water pump 9 will first extract the water in the water storage tank 10, and then add The pressure pump 15 provides power, pumps water into the spray system 13, and is sprayed by the spray system 13. While spraying, the air inlets 7 on both sides of the cooling tower 1 are used for air entry, and the intake fan 8 can effectively The air is drawn into the cooling tower and forms convection with the sprayed water to cool the water. The cooling process will generate water vapor, which will be discharged by the exhaust fan 3, and the cooling water will fall into the storage tank through the deflector 16 by its own gravity. The water pool 23 and the adsorption ball 26 in the water storage pool 23 can absorb the particles in the water to ensure the performance of the cooling tower, and also ensure that the water cooled by the cooling tower can be recycled again.

Example 3:

In this embodiment, the high-carbon ferrochrome smelting cooling spray system of the present invention is tested. First, the amount of particulate matter in the cooling water in the storage tank is measured with an instrument, and then the cooling water is treated to remove particulate matter by the system of the present invention. After the treatment Detect the content of particulate matter in the water again, and the specific results are shown in accompanying drawing 6:

Tests show that the particulate matter in the cooling water will be greatly reduced after the cooling water passes through the spray system of the present invention, which ensures the performance of the cooling tower and ensures that the water cooled by the cooling tower can be recycled again.

The conventional technology in this embodiment is the prior art known to those skilled in the art, and will not be described in detail here.

Although the invention has been described in conjunction with preferred embodiments, it is not intended to limit the invention, and any person skilled in the art can implement various embodiments on the subject matter set forth herein without departing from the spirit and scope of the invention. Changes, replacements and modifications of equivalents, so the protection scope of the present invention should be determined by the scope defined by the proposed claims.

Claims (7)

1. The utility model provides a cooling spraying system is smelted to high carbon ferrochrome, includes cooling tower (1), its characterized in that: the cooling tower (1) top is connected with fan cover (2), cooling tower (1) inside is equipped with spraying system (13), spraying system (13) below is equipped with radiating fin (5), radiating fin (5) below is equipped with tank (23), tank (23) inside is established and is adsorbed ball (26) by a plurality of, it gathers dirty ring (31) to be equipped with in absorption ball (26), it is equipped with magnetic block (32) to gather dirty ring (31) skin, one side of magnetic block (32) is equipped with shrouding (33), the top of shrouding (33) contacts with the bottom of magnetic block (32).

2. The high-carbon ferrochrome smelting cooling spray system according to claim 1, characterized in that: be equipped with exhaust fan (3) in fan guard (2), the fixedly connected with pivot (11) of exhaust fan (3), the top of first pivot (11) is connected with first motor (4), first motor (4) and fan guard (2) top fixed connection.

3. The high-carbon ferrochrome smelting cooling spray system according to claim 1, characterized in that: the top of the spraying system (13) is connected with a water inlet main pipe (14) which is symmetrically arranged, the water inlet end of the water inlet main pipe (14) is connected with a water storage tank (10), and a water pump (9) and a pressure pump (15) are sequentially arranged on the water inlet main pipe (14).

4. The high-carbon ferrochrome smelting cooling spray system according to claim 1, characterized in that: spraying system (13) are including manger plate cover (18), second motor (17) are installed at the top of manger plate cover (18), dispersion impeller (22) top surface is connected to the output of second motor (17), dispersion impeller (22) are conical and inside cavity, inlet opening (19) have been seted up at the top of dispersion impeller (22), guiding gutter (21) have been seted up on the inclined plane of dispersion impeller (22), dispersion impeller (22) bottom surface is equipped with a plurality of shower nozzle (20).

5. The high-carbon ferrochrome smelting cooling spray system according to claim 1, characterized in that: air inlet (7) are arranged on two sides of the cooling tower (1), one end of the air inlet (7) is located inside the cooling tower (1), a guide plate (16) is connected to the bottom of the air inlet (7) inside the cooling tower (1), and an air inlet fan (8) is arranged inside the air inlet (7).

6. The high-carbon ferrochrome smelting cooling spray system according to claim 1, characterized in that: the two ends of the radiating fins (5) are fixed through the pressing plates (6), and the pressing plates (6) are fixedly connected to the inner wall of the cooling tower (1).

7. The high-carbon ferrochrome smelting cooling spray system according to claim 1, characterized in that: the symmetry is equipped with elastic component (24) in tank (23), and the symmetry sets up be connected with stretch cord (25) between elastic component (24), it adsorbs ball (26) to alternate on stretch cord (25), it is equipped with magnetic layer (34) to adsorb ball (26) surface, magnetic layer (34) surface equipartition has hole (27) of permeating water, it is equipped with dirty ring (31) of collection to adsorb ball (26) inside, dirty ring (31) middle part of collection is equipped with second pivot (30), dirty ring (31) surface of collection encircles and has laid puddler (29), puddler (29) tip is to a lateral deflection, puddler (29) middle section is equipped with activated carbon layer (28).