阅读说明：本技术 一种转底炉成品冷却系统 (Finished product cooling system of rotary hearth furnace ) 是由 王惠家 李磊 高星 江波 陈迪安 刘学民 刘燕燕 汪小龙 陈国海 刘磊 王睿昊 于 2021-07-13 设计创作，主要内容包括：本发明公开了一种转底炉成品冷却系统,包括供水单元、冷却单元、回水单元以及控制单元,供水单元、冷却单元和回水单元依次顺序连接,且供水单元还与回水单元连接,控制单元与冷却单元以及供水单元分别连接；冷却单元包括冷却筒和喷射单元,冷却筒用于容置所述转底炉成品,喷射单元用于对冷却筒进行冷却处理；回水单元用于将冷却单元产生的废水抽送至供水单元；供水单元用于对废水进行预设的处理后提供给冷却单元；控制单元用于对冷却单元进行调节,以使转底炉成品达到预期的冷却效果。本发明公开的转底炉成品冷却系统解决了现有技术中转底炉成品经冷却后存在的内部结构损伤以及冷却过程中耗水量巨大的技术问题。(The invention discloses a rotary hearth furnace finished product cooling system which comprises a water supply unit, a cooling unit, a water return unit and a control unit, wherein the water supply unit, the cooling unit and the water return unit are sequentially connected, the water supply unit is also connected with the water return unit, and the control unit is respectively connected with the cooling unit and the water supply unit; the cooling unit comprises a cooling cylinder and an injection unit, the cooling cylinder is used for accommodating the finished rotary hearth furnace, and the injection unit is used for cooling the cooling cylinder; the water return unit is used for pumping the wastewater generated by the cooling unit to the water supply unit; the water supply unit is used for carrying out preset treatment on the wastewater and then supplying the wastewater to the cooling unit; the control unit is used for adjusting the cooling unit so as to enable the finished product of the rotary hearth furnace to achieve the expected cooling effect. The invention discloses a rotary hearth furnace finished product cooling system which solves the technical problems of internal structure damage and huge water consumption in the cooling process of the rotary hearth furnace finished product after being cooled in the prior art.)

1. A rotary hearth furnace finished product cooling system is characterized by comprising a water supply unit, a cooling unit, a water return unit and a control unit, wherein the water supply unit, the cooling unit and the water return unit are sequentially connected, the water supply unit is also connected with the water return unit, and the control unit is respectively connected with the cooling unit and the water supply unit;

the cooling unit comprises a cooling cylinder and an injection unit, the cooling cylinder is used for accommodating the finished rotary hearth furnace, and the injection unit is used for cooling the cooling cylinder;

the water return unit is used for pumping the wastewater generated by the cooling unit to the water supply unit;

the water supply unit is used for carrying out preset treatment on the wastewater and then supplying the wastewater to the cooling unit;

the control unit is used for adjusting the cooling unit so as to enable the finished rotary hearth furnace to achieve the expected cooling effect.

2. The cooling system of claim 1, wherein the cooling cylinder comprises an inner cylinder movably connected and an outer cylinder fixedly connected, and the finished rotary hearth furnace is received in the inner cylinder;

the spraying unit comprises a spraying unit and a spraying unit, and the spraying unit is arranged on the inner wall of the outer cylinder and is used for spraying and cooling the inner cylinder;

the spraying units are arranged at two end parts of the cooling cylinder and used for spraying and cooling the cooling cylinder.

3. The cooling system of claim 1, wherein the water supply unit comprises a low pressure water supply unit and a high pressure water supply unit connected to each other;

the low-pressure water supply unit comprises a water cooling tank and a low-pressure water supply pump, and the water cooling tank is used for performing impurity settling treatment and cooling treatment on the wastewater conveyed by the water return unit so as to enable the wastewater to reach the recycling standard; the low-pressure water supply pump is used for pumping the treated cooling water to the high-pressure water supply unit;

the high-pressure water supply unit comprises a filter and a high-pressure water supply pump set, the filter is used for filtering the cooling water provided by the low-pressure water supply unit, and the high-pressure water supply pump set is used for boosting the pressure of the filtered cooling water and providing the boosted cooling water to the cooling unit.

4. The cooling system of claim 3, wherein the high pressure feed pump assembly is a high pressure variable frequency feed pump assembly coupled to the spray unit such that the pressure of the cooling water in the spray unit is adjustable.

5. The cooling system according to claim 3, wherein the high-pressure water supply unit further comprises a low-pressure water supply line connected to both ends of the cooling cylinder to perform the constant-pressure high-flow spray cooling on both ends of the cooling cylinder.

6. The cooling system of claim 3, wherein the low-pressure water supply unit further comprises a water cooling tank water replenishing pipe, and the water cooling tank water replenishing pipe is connected with a workshop clean circulating water supply system and is used for replenishing water to the water cooling tank when the water storage amount of the water cooling tank is insufficient.

7. The cooling system of claim 1, wherein the water return unit comprises a water return pump for pumping the wastewater produced by the cooling unit and a filter for filtering the wastewater.

8. The cooling system of claim 7, wherein a siphon barrel device is further disposed between the water return unit and the cooling unit, and the siphon barrel device is configured to have a fixed liquid level height so as to maintain the water return pump in a normal pressure operation state.

9. The cooling system of claim 1, wherein the control unit comprises a temperature controller for monitoring the surface temperature of the finished rotary hearth furnace after being cooled by the cooling drum;

and the control unit adjusts the rotating speed of the inner cylinder and adjusts the water outlet pressure of the spraying unit according to the surface temperature so as to enable the finished product of the rotary hearth furnace to achieve the expected cooling effect.

10. The cooling system according to claim 1, wherein a diffusing line is further provided on the surface of the cooling cylinder to recover high-temperature water vapor generated during the cooling process.

Technical Field

The invention relates to the technical field of a rotary hearth furnace finished product cooling system, in particular to a rotary hearth furnace finished product cooling system.

Background

At present, in a high-purity strontium hydroxide workshop, two cooling modes, namely spray cooling and spray cooling, are adopted for cooling high-purity strontium hydroxide finished balls, and a water cooling tank is generally independently configured to provide a water source for a cooling system. But the existing cooling mode can cause the structural damage in the finished ball on one hand, and on the other hand, the water consumption is huge, which is not in accordance with the environmental protection principle, and simultaneously, the manufacturing cost is higher.

Disclosure of Invention

The embodiment of the application provides a rotary hearth furnace finished product cooling system, has solved the inner structure damage that exists after the cooling of prior art rotary hearth furnace finished product and the huge technical problem of water consumption among the cooling process, has realized alleviateing the inner structure damage of rotary hearth furnace finished product after the cooling to reduce the technological effect of water consumption.

The application provides the following technical scheme through an embodiment of the application:

a rotary hearth furnace finished product cooling system comprises a water supply unit, a cooling unit, a water return unit and a control unit, wherein the water supply unit, the cooling unit and the water return unit are sequentially connected, the water supply unit is also connected with the water return unit, and the control unit is respectively connected with the cooling unit and the water supply unit;

the cooling unit comprises a cooling cylinder and an injection unit, the cooling cylinder is used for accommodating the finished rotary hearth furnace, and the injection unit is used for cooling the cooling cylinder;

the water return unit is used for pumping the wastewater generated by the cooling unit to the water supply unit;

the water supply unit is used for carrying out preset treatment on the wastewater and then supplying the wastewater to the cooling unit;

the control unit is used for adjusting the cooling unit so as to enable the finished rotary hearth furnace to achieve the expected cooling effect.

Optionally, the cooling cylinder comprises an inner cylinder and an outer cylinder which are movably connected, and the finished rotary hearth furnace is accommodated in the inner cylinder;

the spraying unit comprises a spraying unit and a spraying unit, and the spraying unit is arranged on the inner wall of the outer cylinder and is used for spraying and cooling the inner cylinder;

the spraying units are arranged at two end parts of the cooling cylinder and used for spraying and cooling the cooling cylinder.

Optionally, the water supply unit comprises a low pressure water supply unit and a high pressure water supply unit which are connected with each other;

the low-pressure water supply unit comprises a water cooling tank and a low-pressure water supply pump, and the water cooling tank is used for performing impurity settling treatment and cooling treatment on the wastewater conveyed by the water return unit so as to enable the wastewater to reach the recycling standard; the low-pressure water supply pump is used for pumping the treated cooling water to the high-pressure water supply unit;

the high-pressure water supply unit comprises a filter and a high-pressure water supply pump set, the filter is used for filtering the cooling water provided by the low-pressure water supply unit, and the high-pressure water supply pump set is used for boosting the pressure of the filtered cooling water and providing the boosted cooling water to the cooling unit.

Optionally, the high-pressure water feed pump unit is a high-pressure variable-frequency water feed pump unit, and the high-pressure variable-frequency water feed pump unit is connected with the spraying unit, so that the pressure of the cooling water in the spraying unit is adjustable.

Optionally, the high-pressure water supply unit further comprises a low-pressure water supply pipeline, the low-pressure water supply pipeline is connected with two ends of the cooling cylinder to perform constant-pressure large-flow spray cooling on two ends of the cooling cylinder.

Optionally, the low-pressure water supply unit further comprises a water cooling tank water replenishing pipe, and the water cooling tank water replenishing pipe is connected with a workshop clean circulating water supply system and used for replenishing water to the water cooling tank when the water storage capacity is insufficient.

Optionally, the water return unit includes a water return pump and a filter, the water return pump is configured to pump the wastewater generated by the cooling unit, and the filter is configured to filter the wastewater.

Optionally, a siphon barrel device is further disposed between the water return unit and the cooling unit, and the siphon barrel device is configured to have a fixed liquid level height, so that the water return pump maintains a normal-pressure working state.

Optionally, the control unit comprises a temperature controller for monitoring the surface temperature of the finished rotary hearth furnace cooled by the cooling cylinder;

and the control unit adjusts the rotating speed of the inner cylinder and adjusts the water outlet pressure of the spraying unit according to the surface temperature so as to enable the finished product of the rotary hearth furnace to achieve the expected cooling effect.

Optionally, a diffusing pipeline is further arranged on the surface of the cooling cylinder to recover high-temperature water vapor generated in the cooling process.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

the application provides a rotary hearth furnace finished product cooling system which comprises a water supply unit, a cooling unit, a water return unit and a control unit; the water supply unit is connected with the cooling unit and used for providing cooling water for the cooling unit; the cooling unit further comprises a cooling cylinder and an injection unit, the finished rotary hearth furnace is placed in the cooling cylinder, and the cooling cylinder is cooled by the injection unit, so that the finished rotary hearth furnace is cooled, and the finished rotary hearth furnace is prevented from being damaged due to direct contact of a cooling medium and the finished rotary hearth furnace;

on the other hand, this application sets up and is connected return water unit and cooling unit and water supply unit respectively, and return water unit takes the waste water that cooling unit produced out the back and sends into water supply unit, handles the back by water supply unit and offers cooling unit again after waste water, has realized the recycling of cooling water, greatly reduced the water consumption, when having reduced manufacturing cost, still reached the purpose of environmental protection.

The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic structural diagram of a finished product cooling system of a rotary hearth furnace in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a finished product cooling system of a rotary hearth furnace based on FIG. 1 in an embodiment of the present application;

FIG. 3 is a schematic view of a specific arrangement of a finished cooling system of a rotary hearth furnace according to FIG. 2 in an embodiment of the present application.

Detailed Description

The embodiment of the application provides a rotary hearth furnace finished product cooling system, has solved the inner structure damage that exists after the cooling of prior art rotary hearth furnace finished product and the huge technical problem of water consumption among the cooling process.

In order to solve the technical problems, the general idea of the embodiment of the application is as follows:

the finished product cooling system of the rotary hearth furnace comprises a water supply unit, a cooling unit, a water return unit and a control unit, wherein the water supply unit, the cooling unit and the water return unit are sequentially connected, the water supply unit is also connected with the water return unit, and the control unit is respectively connected with the cooling unit and the water supply unit;

the cooling unit comprises a cooling cylinder and an injection unit, the cooling cylinder is used for accommodating the finished rotary hearth furnace, and the injection unit is used for cooling the cooling cylinder;

the water return unit is used for pumping the wastewater generated by the cooling unit to the water supply unit;

the water supply unit is used for carrying out preset treatment on the wastewater and then supplying the wastewater to the cooling unit;

the control unit is used for adjusting the cooling unit so as to enable the finished rotary hearth furnace to achieve the expected cooling effect.

It should be noted that the finished product cooling system of the rotary hearth furnace provided by the application can be applied to a high-purity strontium hydroxide workshop for cooling high-purity strontium hydroxide finished balls, or can also be used for cooling finished balls of the rotary hearth furnace in a similar form.

In order to better understand the technical solutions, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

First, it is stated that the term "and/or" appearing herein is merely one type of associative relationship that describes an associated object, meaning that three types of relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The present embodiment provides a finished product cooling system of a rotary hearth furnace, as shown in fig. 1, including:

the water supply system comprises a water supply unit 1100, a cooling unit 1200, a water return unit 1300 and a control unit 1400, wherein the water supply unit 1100, the cooling unit 1200 and the water return unit 1300 are sequentially connected, the water supply unit 1100 is further connected with the water return unit 1300, and the control unit 1400 is respectively connected with the water supply unit 1100 and the cooling unit 1200.

The cooling unit 1200 comprises a cooling cylinder 1210 and a spraying unit 1220, the cooling cylinder 1200 is used for accommodating finished products of the rotary hearth furnace, and the spraying unit 1220 is used for cooling the cooling cylinder 1210;

the water return unit 1300 is used for pumping the wastewater generated by the cooling unit 1200 to the water supply unit 1100;

the water supply unit 1100 is used for supplying the wastewater after a preset treatment to the cooling unit 1200;

the control unit 1400 is used to adjust the cooling unit 1200 so as to achieve the desired cooling effect of the finished rotary hearth furnace.

The specific components of the finished product cooling system of the rotary hearth furnace provided by the embodiment of the present application are described in detail below with reference to fig. 1 to 2:

the finished product cooling system of the rotary hearth furnace comprises a water supply unit 1100, a cooling unit 1200, a water return unit 1300 and a control unit 1400.

In a particular embodiment, the water supply unit 1100 includes a low pressure water supply unit 1110 and a high pressure water supply unit 1120. The low-pressure water supply unit 1110 comprises a water cooling tank 1111 and a low-pressure water supply pump 1112, wherein the water cooling tank 1111 is used for performing impurity settling treatment and temperature reduction treatment on the wastewater conveyed by the water return unit 1300 so as to enable the wastewater to reach the reuse standard; and a low-pressure water supply pump 1112 for pumping the treated cooling water to the high-pressure water supply unit 1120.

In a specific embodiment, the bottom of the water cooling tank 1111 is set to be in a slope shape, and the inside of the water cooling tank 1111 may be set to include two regions, one of which is a high temperature settling region and the other of which is a low temperature clear water region, wherein the high temperature settling region is higher than the low temperature clear water region, that is, the high temperature settling region is located at an upper section of the slope at the bottom of the water cooling tank 1111, and the low temperature clear water region is located at a lower section of the slope at the bottom of the water cooling tank 1111, so as to settle large particle impurities in the wastewater from the water returning unit 1300.

In a specific embodiment, the high-temperature settling area is connected to the water return unit 1300 through a water cooling tank water return pipe to store the high-temperature wastewater from the water return unit 1300. And a cooling device is also arranged in the high-temperature settling zone and used for cooling the high-temperature wastewater to make the high-temperature wastewater reach the temperature standard of cooling water. The cooling device may be disposed on the wall or the bottom of the high temperature settling zone, which is not limited in this application. In a specific implementation process, the high-temperature wastewater from the water return unit 1300 is discharged to a high-temperature settling zone through a water return pipe of a water airing tank for settling treatment, wherein a natural settling method can be adopted, namely, large particulate matters in the wastewater are deposited on the bottom of the tank, or particulate adsorbates (activated carbon and the like) are added into the high-temperature settling zone to synchronously adsorb the large particulate matters in the wastewater, so as to accelerate the settling rate, which is not limited in the present application. In addition, when the high-temperature wastewater enters the high-temperature settling zone, the high-temperature settling zone is arranged to synchronously cool the high-temperature wastewater, so that the high-temperature wastewater reaches the temperature required by the recycling of the cooling water. After sedimentation treatment and temperature reduction treatment, the high-temperature wastewater from the water return unit 1300 can reach the reuse standard, and is conveyed to a low-temperature clean water area for subsequent use as cooling water.

In a specific implementation process, because the water amount in the whole cooling system is not infinitely recycled (loss is generated), a water cooling tank water replenishing pipe is further arranged in the low-pressure water supply unit 1100 and used for communicating the workshop clean water and circulating water supply system and the low-temperature clean water area so as to replenish water for the whole cooling system when the water level of the water cooling tank is lower than the set safe water level.

In a specific embodiment, a submersible pump is disposed between the low temperature clean water zone and the high pressure water supply unit 1120 to pump the cooling water in the low temperature clean water zone to the high pressure water supply unit 1120 by means of low pressure water supply.

The application provides a low pressure water supply unit is through setting up the pond that dries in the air and deposit and handle the high temperature waste water that produces after the cooling in order to realize recycling, simple structure, the implementation and the daily plant maintenance of the scheme of being convenient for, owing to utilize cooling water cyclic utilization moreover, consequently can the significantly reduced water consumption.

In a specific embodiment, the high pressure water supply unit 1120 includes a filter 1121 and a high pressure water supply pump set 1122, the filter 1121 is disposed between the low pressure water supply unit 1110 and the high pressure water supply pump set 1122, and is used for filtering the cooling water provided by the low pressure water supply unit 1110 to remove impurity particles in the cooling water and prevent blockage of a pipeline, and in a specific implementation process, the filter 1121 may be a Y-type filter, a mesh filter, or the like, which is not limited in this application. The high-pressure feed pump unit 1122 is provided behind the filter 1121, is connected to the cooling unit 1200, and boosts the pressure of the filtered cooling water and supplies the water to the cooling unit 1200. In a specific implementation, the high-pressure water feed pump set 1122 may be a high-pressure variable-frequency water feed pump set, so that the pressure of the cooling water supplied to the cooling unit 1200 may be adjusted according to the actual cooling condition, thereby saving the water consumption.

In a specific embodiment, the cooling unit 1200 includes a cooling cylinder 1210 and a spraying unit 1220, the cooling cylinder 1200 is configured in a cylindrical shape for accommodating the finished rotary hearth furnace, and the spraying unit 1220 is configured for performing a cooling process on the cooling cylinder 1210. The cooling cylinder 1210 comprises an inner cylinder 1211 and an outer cylinder 1212, wherein the inner cylinder 1211 is movably connected with the outer cylinder 1212, the finished rotary hearth furnace is contained in the inner cylinder 1211, and the inner cylinder 1211 can rotate around the central axis direction; the spraying unit 1220 includes a spraying unit 1221 and a spraying unit 1222, the spraying unit 1221 is disposed on an inner wall of the outer cylinder 1212 for spray-cooling the inner cylinder 1211; the spraying units 1222 are provided at both end portions of the cooling cylinder 1210, and are used for spray-cooling the cooling cylinder 1210. In a specific implementation process, the spraying unit 1221 is formed by arranging a plurality of 120 ° solid conical nozzles according to a preset position, for example, for uniformity of spraying, the 120 ° solid conical nozzles may be arranged along a circumferential direction of the cooling cylinder 1210, 4 solid conical nozzles are arranged on each circumference, 6 to 6 circles are arranged in total along a central axis direction of the cooling cylinder 1210 (i.e., 24 solid conical nozzles are arranged in total), of course, the number and arrangement positions of the 120 ° solid conical nozzles may also be dynamically adjusted according to an actual size of the cooling cylinder, for example, 5 solid conical nozzles may also be arranged on each circumference, 8 circles are arranged in total, and the like, which is not limited herein. The spraying unit 1222 is composed of several 0 ° injection nozzles, and is used to perform large-flow spraying cooling on two ends of the cooling cylinder 1210, as an optional embodiment, 30 ° injection nozzles may be respectively disposed on two ends of the cooling cylinder, the 30 ° injection nozzles at each end are all arranged along the circumferential direction, the water pressure of spraying may be set to 0.2MPa, and the spraying distance is 1.2 m.

In a specific embodiment, the control unit 1400 is connected to the cooling unit 1200 and the water supply unit 1100 respectively, and is used for adjusting the cooling unit 1200 to achieve a desired cooling effect of the finished rotary hearth furnace. In a specific implementation process, the control unit 1400 includes a temperature controller 1410, and the temperature controller 1410 is configured to monitor a surface temperature of the finished rotary hearth furnace cooled by the cooling cylinder 1210; the control unit 1400 adjusts the rotation speed of the inner cylinder 1211 and the water outlet pressure of the spraying unit 1221 according to the monitored surface temperature, so that the finished product of the rotary hearth furnace can achieve the expected cooling effect, and the water outlet amount of the spraying unit 1221 can be adjusted according to the actual situation, thereby achieving the purpose of saving water.

In a specific implementation process, the control unit 1400 monitors the surface temperature of the finished product of the rotary hearth furnace after being cooled in real time, and when the temperature is higher, the control unit 1400 can increase the pressure of the high-pressure water feed pump group 1122 so as to increase the water outlet pressure of the spraying unit 1221 connected with the high-pressure water feed pump group 1122, so that the water outlet rate of the spraying unit 1221 is increased, more heat can be taken away in unit time, and the surface temperature of the finished product of the rotary hearth furnace can be reduced; when the surface temperature of the cooled finished product of the rotary hearth furnace is lower, the control unit 1400 may perform the reverse operation to achieve the desired cooling effect of the finished product of the rotary hearth furnace. The water outlet pressure of the spraying unit 1221 is adjustable, so that the cooling effect of a rotary hearth furnace finished product can be dynamically adjusted, the situation of water resource waste caused by fixed water outlet amount is avoided, and the water consumption for cooling is saved. In addition, the control unit 1400 may also control the rotation speed of the inner tube 1211 according to actual conditions. Specifically, when the size of the finished product of the rotary hearth furnace is small (for example, when the size of the finished product balls is spherical, the size may be the diameter of the finished product balls) and/or the number is small, the rotation speed of the inner cylinder 1211 may be increased, thereby reducing the cooling time, and when the size of the finished product of the rotary hearth furnace is larger and/or the number is larger, the control unit 1400 may control to decrease the rotation speed of the inner cylinder 1211, so that the heat of the finished product of the rotary hearth furnace can be uniformly removed, thereby achieving the desired cooling effect.

In addition, a diffusing pipeline is further arranged on the surface of the cooling cylinder 1200 to recover high-temperature water vapor generated in the cooling process, so that the steam cost of a workshop is saved.

In a specific implementation process, the temperature of the cooling water passing through the cooling unit 1200 is high, and the cooling water needs to be delivered to the water airing tank through the water return unit 1300 for processing and then be provided to the cooling unit 1200 as low-temperature cooling water to cool the finished rotary hearth furnace. In a specific embodiment, the water return unit 1300 includes a water return pump 1310 for pumping the high temperature water generated from the cooling unit 1200, and a filter 1320 for filtering the high temperature water to remove impurities in the high temperature water and prevent the pipeline from being blocked. In an optional embodiment, a siphon barrel device is further disposed between the water return unit 1300 and the cooling unit 1200, and the siphon barrel device is configured to have a fixed liquid level height, so that the water return pump 1310 is kept in a normal-pressure working state, and a situation of air suction of the water return pump 1310 is avoided, thereby prolonging the service life of the water return pump and ensuring the safe operation performance of the whole cooling system.

A specific structural layout of a finished product cooling system of a rotary hearth furnace provided by the embodiment of the present application is described below with reference to fig. 3:

in fig. 2, the finished product cooling system of the rotary hearth furnace is divided by broken lines, wherein 1 is a low-pressure water supply unit, 2 is a high-pressure water supply unit, 3 is an injection unit, 4 is a siphon cylinder, 5 is a water return unit, 6 is a cooling cylinder, and 7 is a control unit. The names of the valve elements have been indicated in the corresponding positions in fig. 2.

In the specific implementation process, the low-pressure water supply unit 1 conveys cooling water in the water cooling tank to the high-pressure water supply unit 2, the high-pressure water supply unit 2 supplies high-pressure water and low-pressure water to the cooling cylinder 6 through the high-pressure pump set and the cooling cylinder end spraying water supply pipe respectively, the high-pressure water is supplied to the spraying cooling part in the injection unit 3 to provide high-flow-rate cooling spraying for the cooling cylinder 6, so that the finished rotary hearth furnace is cooled more uniformly, the low-pressure water is supplied to the spraying cooling part of the injection unit 3 to provide large-flow cooling water for the cooling cylinder 6, and therefore the cooling area of the finished rotary hearth furnace is increased, and the finished rotary hearth furnace can be cooled more quickly.

The control unit 7 adjusts the rotating speed of a high-pressure pump set in the high-pressure water supply unit 2 according to the finished product detection temperature of the outlet of the cooling cylinder 6 in a frequency conversion mode, so that the spraying pressure of spraying cooling in the spraying unit 3 is changed, and the cooling effect on the cooling cylinder 6 is adjusted; in addition, the control unit 7 also carries out frequency conversion control on the rotating speed of the cooling cylinder 6, so that the cooling time of the finished product balls can be changed, specifically, the cooling time is correspondingly increased when the product balls are large in size and small in size, and the cooling time is correspondingly reduced when the product balls are small in size, so that the dynamic flexible control of the cooling process is realized, and the water consumption is saved while the cooling effect is achieved.

The siphon cylinder 4 is arranged between the water return unit 5 and the cooling cylinder 6, so that the lowest water return liquid level of the water return unit 5 is ensured, the water supply pressure of the low-pressure water return pump of the water return unit 5 is normal-pressure water supply, and the service life of the water return pump is prolonged. Still be provided with the overflow mouth in siphon section of thick bamboo 4, when the liquid level of siphon section of thick bamboo 4 was too high and lead to return water unit 5 in time to discharge, the cooling water can be through overflow mouth automatic discharge siphon section of thick bamboo 4 to flow into the escape canal, guaranteed the security performance of cooling water return water.

The water return unit 5 conveys the high-temperature water generated by the cooling cylinder 6 to a high-temperature settling area in the low-pressure water supply unit 1 for impurity settling treatment and temperature reduction treatment, and then the high-temperature water can be used as new cooling water for recycling.

The technical scheme in the embodiment of the application at least has the following technical effects or advantages:

the application provides a rotary hearth furnace finished product cooling system which comprises a water supply unit, a cooling unit, a water return unit and a control unit; the water supply unit is connected with the cooling unit and used for providing cooling water for the cooling unit; the cooling unit further comprises a cooling cylinder and an injection unit, the finished rotary hearth furnace is placed in the cooling cylinder, and the cooling cylinder is cooled by the injection unit, so that the finished rotary hearth furnace is cooled, and the finished rotary hearth furnace is prevented from being damaged due to direct contact of a cooling medium and the finished rotary hearth furnace;

on the other hand, this application sets up and is connected return water unit and cooling unit and water supply unit respectively, and return water unit takes the waste water that cooling unit produced out the back and sends into water supply unit, handles the back by water supply unit and offers cooling unit again after waste water, has realized the recycling of cooling water, greatly reduced the water consumption, when having reduced manufacturing cost, still reached the purpose of environmental protection.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.