CN216175365U

CN216175365U - Through water cooling spraying system for bar production

Info

Publication number: CN216175365U
Application number: CN202121782580.6U
Authority: CN
Inventors: 黄亨本; 计剑平; 范世雄; 刘小苗
Original assignee: Yunnan Yuxi Yukun Iron and Steel Group Co Ltd
Current assignee: Yunnan Yuxi Yukun Iron and Steel Group Co Ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-04-05
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses a through-water cooling spraying system for bar production, which comprises a water tank shell, a conveying roller and a wind cooling device, wherein the conveying roller is arranged in the water tank shell, a spraying frame is arranged in the water tank shell along the periphery of the conveying direction of the conveying roller, a spraying pipe is fixedly arranged on the spraying frame, a spraying head is connected to the spraying pipe, one end of the spraying pipe is connected to a water tank, a water pump is arranged in the water tank and connected with the spraying pipe, cold air pipes are arranged at the top and the bottom of the conveying roller and connected to a cold air source, and the device controls the conveying time by adopting a set of water curtain spraying and cold air cooling to effectively control the cooling temperature and achieve accurate control.

Description

Through water cooling spraying system for bar production

Technical Field

The utility model relates to a spraying system, in particular to a through water cooling spraying system for producing bars.

Background

The bar material is usually deformed steel bar and round steel bar, and is delivered in a straight bar shape, the size range of the small bar material specified by the national standard is 6-50 mm in diameter, and the length of the small bar material is 6-12 m in length, and the bar material is called wire material if being delivered in a coiled manner. The rod and the wire belong to the section steel with simple section, and the rolling process is very similar. The water cooling device is an indispensable important component on a modern bar and wire production line, is arranged between rolling mills or behind a finishing mill and is respectively used for controlling the temperature of a rolled piece in the rolling process and the cooling temperature of a finished product, thereby achieving the purpose of improving the performance of the product. On the old-fashioned stick wire rod production line, because do not reserve the position of water cooling device, so only can produce low-grade product or improve product mechanical properties through adding the alloy element, do not possess market competition advantage. The water cooling can improve the performance of the bar and can replace the functions of certain alloy elements in steel, so that the production cost can be reduced, and meanwhile, due to the improvement of the performance, the same building structure can use less steel, so that the requirement of the low-carbon era is met, and the water cooling has wide application prospect.

At present, on a hot-rolled bar and wire production line, in order to improve the performance of reinforcing steel bars, a water cooling device is generally adopted on the production line, and a rolled finished product is cooled to improve the mechanical property of the finished product. In order to ensure the water quality of the water for cooling the water, most of water supply and return systems for cooling the water on a production line are separated from turbid circulating water of the rolling mill, namely the water for cooling the water is supplied to an independent water supply pump. The temperature of the finished product steel product through water is generally about 900 ℃, and the following problems exist in the production process:

1) therefore, fine iron scales are easily generated in the water cooling process, the iron scales directly fall into a water return pool of the water cooling, the water quality of the water cooled by the water cooling is influenced, treatment facilities for subsequent water treatment are added, and the whole water cooling generates a large amount of steam which needs to be treated in a relatively closed space, so that a water tank which can be closed and can treat the water quality is needed;

2) the bar is conveyed and cooled on line, and a water system is separated independently, so that in the using process, the common method is to directly adopt spraying, and the cooling mode is rough in temperature control and difficult to accurately control;

3) the rod material is very heavy, and a conveying roller is required to be adopted for conveying when water passes through for cooling, but water is easy to enter due to spraying and the like in the traditional structure of the conveying roller, and the rod material is easy to corrode due to the sealing requirement of a water tank, transmission combination is not needed for a period of time, and the metal is corroded by water vapor generated in the cooling process, so that the waterproof treatment of the conveying roller is very necessary;

4) the temperature of the bar is about 900 ℃, a large amount of high-temperature steam can be generated in the spray cooling process, and in the production process, high-temperature steam is needed in some places, and if the high-temperature steam is directly discharged, the high-temperature steam is very wasted, and the conventional through-water cooling rotating shaft is not arranged in the aspect;

5) the surface of the bar is still provided with a large amount of vapor or even water stain after passing through the water cooling device, the heat of the core part of the bar after being cooled by the water cooling device can not be completely cooled at once, meanwhile, the temperature of the steel reaches about 550-650 ℃ after the heat of the part is transferred out for word tempering, the water stain on the surface can generate steam, the mist is generated on the site of the production space, and the production is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a through-water cooling spraying system for bar production, which solves the problems that bar is conveyed and cooled on line, and the cooling temperature is controlled roughly and is not easy to control accurately in the using process of a common method of directly adopting spraying due to the independent separation of a water system.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a through water cooling spraying system for producing specification bars comprises a water tank outer shell, a conveying roller and an air cooling device; the water tank outer shell is a rectangular closed box body, a box cover is arranged at the top of the water tank outer shell, and a cooling water filtering device is arranged at the bottom of the water tank outer shell and comprises a filter screen and an inclined plane water collecting tank; the filter screen is fixedly arranged below the conveying roller in the water tank outer shell, and is made of a non-metal high-temperature-resistant material; the filter screen is provided with more than three slag grooves, the slag grooves are connected to the same slag discharge pipe, and a pipeline at the bottom of each slag groove is provided with an electromagnetic valve; the inclined water collecting tank is connected to the air cooling device through a first circulating pump and a pipeline, and cooling water of the air cooling device is connected to the water pool; be provided with the conveying roller in the water tank shell body, be provided with the spray rack around conveying roller direction of delivery in the inside of water tank shell body, the fixed shower that is provided with on the spray rack, the connection is provided with the shower head on the shower, shower one end is connected to the pond, is provided with the water pump in the pond and is connected with the shower, is provided with cold air duct connection to cold air source in the top and the bottom of conveying roller.

Further, the shower sets up to six along the direction setting of conveying roller, and two of them are located the top of conveying roller, and two are located the below of conveying roller, and one is located the left side of conveying roller, and one is located the right side of conveying roller.

Furthermore, the six spray pipes are arranged in a regular hexagon shape.

Furthermore, a spray header on the spray pipe is set to be a water curtain spray header, and a water curtain of the spray header is fan-shaped.

Further, the cold air pipe is arranged in an S shape and is fixedly arranged between the conveying roller and the spray header.

Furthermore, all the component materials are made of high-temperature resistant materials.

Compared with the prior art, the utility model has the beneficial effects that:

the device adopts the collection of water curtain spraying and cold air cooling to control the conveying time, so that the cooling temperature can be effectively controlled, and accurate control is realized; this device can be fine filters back used of circulation to the cooling water, and this device is the water economy very moreover.

Drawings

FIG. 1 is a schematic view of the structure of the water tank of the present invention.

Fig. 2 is a schematic structural view of the spraying system of the present invention.

FIG. 3 is a schematic view of the structure of the cold air duct of the present invention.

In the drawing, a water tank outer shell (1), conveying rollers (2), a heat energy recovery device (4), conveying roller grooves (11), a spraying frame (12), a tank cover (13), a vertical connecting plate (141), a transverse connecting plate (142), a baffle (15), a filter screen (17), a slag groove (18), an electromagnetic valve (19), a slag discharge pipe (110), an inclined water collecting groove (111), a first circulating pump (112), a slag baffle (113), a spraying pipe (31), a spraying head (32) and a cold air pipe (33).

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Example 1:

as shown in the figure, the through water cooling spraying system for producing the dimension bars comprises a water tank outer shell 1, a conveying roller 2 and an air cooling device. In the device, a water tank outer shell 1 of the device is a rectangular closed box body in order to facilitate sealing and bar passing. In order to seal the box body as much as possible and reduce the contact between the inside and the outside of the box body, the device is provided with conveying roller grooves 11 only for conveying rollers 2 to pass through on two sides of the water tank outer shell body 1, the size and the shape of the conveying roller grooves 11 are set to be consistent with the shape and the size of the conveying rollers 2 when conveying bars, so that the contact between the whole box body and the outside does not have other positions except the notch, and the sealing performance of the box body is ensured as much as possible. In order to conveniently carry out water cooling and simultaneously make the water cooling contact surface on the rod larger, the device is provided with a spraying frame 12 inside the water tank shell body 1 along the periphery of the conveying direction of the conveying roller 2, and the spraying frame 12 is fixedly provided with a spraying system for spraying water and cooling the rod. The water vapor generated by water spraying is recycled by arranging a tank cover 13 on the top of the water tank outer shell 1, and a heat energy recovery device 4 is arranged on the tank cover 13 and is arranged as an air suction cover to absorb and utilize the generated water vapor. This device is provided with cooling water filter equipment in the bottom of water tank shell body 1 and filters recycle to the cooling water that sprays.

In order to facilitate the filtration of the slag water, the cooling water filtering device of the device comprises a filter screen 17 and a vibrator, wherein the filter screen 17 is mainly used for filtering the slag water, but the broken slag such as iron oxide scales on the bars can block the meshes of the filter screen after falling onto the filter screen 17, therefore, the vibrator is arranged on the filter screen 17 to vibrate the filter screen 17, so that the broken slag such as the iron oxide scales can bounce on the filter screen, and the meshes of the filter screen can not be blocked at all, the vibrator of the device comprises a connecting part which is a vertical connecting plate 141 and a transverse connecting plate 142 respectively, concretely, the transverse connecting plate 142 is arranged at the bottom of the filter screen 17, one end of the vertical connecting plate 141 is connected with the transverse connecting plate 142, the other end is connected with the conveying roller 2, so that the filter screen 17 is vibrated by the vibration generated when the bars are contacted with the roller on the conveying roller 2, and the defect that the filter screen 17 cannot be protected by the vibrator alone is avoided, when necessary, the tension degree of the filter screen 17 is properly adjusted, and the vibration is divided into two types, one is vibration for tensioning the filter screen 17, and the other is vibration for driving the filter screen 17 to shake up and down by the vibration, so that the steel slag and the like are vibrated or turned. The filter screen 17 of this device is fixed to be set up in the inside below of conveying roller 2 of water tank shell body 1. Because the interior of the filter screen 17 is in a high-temperature environment, the temperature can reach about 1000 ℃ at most, therefore, the material of the filter screen 17 must resist high temperature, meanwhile, because high-temperature steam can corrode metal, the filter screen 17 is made of metal or nonmetal high-temperature resistant materials, one specific choice is that the filter screen 17 is made of high-temperature stainless steel, 30418Cr-8Ni high-temperature stainless steel is a very good choice, the other choice is that special ceramics is used for manufacturing, and it needs to be noted that when the special ceramics are used for manufacturing, the filter screen 17 can only adopt tensioning vibration, meanwhile, the transverse connecting plate 142 cannot be directly solved with the filter screen 17, and a spring is used for buffering between the filter screen 17 and avoiding damaging the filter screen 17; a slag groove 18 is arranged on the filter screen 17 for collecting filter slag.

In order to facilitate the collection of filter residues, the slag groove 18 of the device is a downward-sunken conical groove, a through hole is formed in the bottom of the slag groove 18 and is connected with a slag discharge pipe 110, the slag discharge pipe 110 penetrates through the water tank outer shell 1 to discharge slag uniformly, the same slag discharge pipe 110 is made of 30418Cr-8Ni stainless steel, and the high-temperature resistance performance is good.

Carry out the segmentation to the filter residue and retrieve, sediment groove 18 sets up to be greater than three, and a plurality of sediment grooves 18 are connected to same root row sediment pipe 110, are provided with the solenoid valve on the pipeline of 18 bottoms in every sediment groove, and the solenoid valve upper shield is equipped with the protection casing, and the protection casing is the high temperature resistant cover of parcel solenoid valve point pipeline.

In order to facilitate the collection of water, the bottom of the water tank outer shell 1 is provided with an inclined plane water collecting tank 111, one side of the bottom of the water tank outer shell 1 is provided with a pipeline communicated inclined plane water collecting tank 111, and a first circulating pump 112 is connected to the pipeline to recycle water.

Some fine filter residues may still penetrate the screen 17, and the device is further blocked by a slag trap 113 provided on the inclined water collection tank 111.

In order to prevent hot steam generated during spraying from being ejected from the transfer roller bath, baffle pieces 15 are provided around the water tank outer case 1 inside the notch of the transfer roller bath 11.

In the device, the inclined water collecting tank 111 is connected to the air cooling device through the first circulating pump 112 and a pipeline, the air cooling device mainly carries out circulating air cooling on cold area water, and after air cooling, cooling water of the air cooling device is connected to a water pool for storage. This device is fixed on the spray rack 12 all around of conveying roller 2 direction of delivery at the inside of water tank shell body 1 and is provided with shower 31, and the connection is provided with shower head 32 on shower 31, and shower 31 one end is connected to the pond, is provided with the water pump in the pond and is connected with shower 31 and provide output power, is provided with cold air duct 33 and is connected to the cold air source in the top and the bottom of conveying roller 2. In this device, be provided with the controller on the motor of conveying roller 2 and be connected to central control system, be provided with temperature sensor on the conveying roller 2 is located the inside side support of water tank shell body 1 and be connected to central control system, whether the cooling of rod reaches the demand through temperature sensor's concrete detected data, nevertheless because the inside of rod can outwards give off the heat at any time and carry out the tempering, adopt the temperature before getting into the inside of water tank shell body 1 and go out the temperature of water tank shell body 1 and the dwell time in the water tank to carry out the temperature and confirm when detecting the temperature. For example, the temperature when entering is 900 degrees centigrade, the temperature when leaving the box body is 300 degrees centigrade, the time of staying in the water tank is 3 minutes, if the temperature when entering the box body and the temperature when leaving the box body are not higher than the set temperature, firstly, the time of staying in the water tank is necessarily more than 3 minutes, and secondly, the cold air source in the cold air pipe 33 is opened for quick cooling, so that the cooling temperature can be accurately controlled.

Example 2:

on the basis of the above embodiment, in this embodiment, the shower 31 is arranged along the direction of the conveying roller 2 to spray one way, and the shower 31 is arranged to be six, two of the shower 31 are located above the conveying roller 2, two of the shower 31 are located below the conveying roller 2, one of the shower 31 is located on the left side of the conveying roller 2, and the other shower 31 is located on the right side of the conveying roller 2, so that all four sides of the bar can be sprayed.

Example 3:

on the basis of the above embodiment, in the present embodiment, since most of the rods are square or rectangular, the six shower pipes 31 are arranged in a regular hexagon for the convenience of arrangement.

Example 4:

on the basis of the above embodiment, in this device, the water spray should not only reach the cooling effect but also need to consider the water waste problem, and the shower head 32 on the shower 31 of this device sets up to the water curtain shower head, and the water curtain of shower nozzle presents the fan-shaped, can be so that the abundant face contact with the rod of spun water, can control the blowout of water yield again, can be fine when guaranteeing the cooling again the using water.

Example 5:

on the basis of the above embodiments, in the present embodiment, in order to make the cooling sufficiently contact with the bar when using the cold air, the cold air pipe 33 of the present device is configured in an "S" shape and is fixedly disposed between the conveying roller 2 and the shower head 32, so that the cold air can still be activated when spraying, and the temperature of the cooling can be better controlled.

Example 6:

on the basis of the above embodiments, in this embodiment, because the temperature of the surface of the rod is very high, high-temperature steam is generated during the initial spraying, and this apparatus needs to make all the parts of the material of the high-temperature resistant material.

Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," "a preferred embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the utility model to effect such feature, structure, or characteristic in connection with other embodiments.

Although the utility model has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. The utility model provides a rod production is with water cooling spraying system which characterized in that: comprises a water tank outer shell (1), a conveying roller (2) and an air cooling device; the water tank outer shell (1) is a rectangular closed box body, a box cover (13) is arranged at the top of the water tank outer shell (1), and a cooling water filtering device is arranged at the bottom of the water tank outer shell (1) and comprises a filter screen (17) and an inclined water collecting tank (111); the filter screen (17) is fixedly arranged below the conveying roller (2) in the water tank outer shell (1), and the filter screen (17) is made of a non-metal high-temperature-resistant material; the filter screen (17) is provided with more than three slag grooves (18), the slag grooves (18) are connected to the same slag discharge pipe (110), and a pipeline at the bottom of each slag groove (18) is provided with an electromagnetic valve; the inclined water collecting tank (111) is connected to the air cooling device through a first circulating pump (112) and a pipeline, and cooling water of the air cooling device is connected to the water pool; conveying rollers (2) are arranged in the water tank outer shell (1), a spray rack (12) is arranged in the water tank outer shell (1) along the conveying direction of the conveying rollers (2), spray pipes (31) are fixedly arranged on the spray rack (12), spray heads (32) are connected and arranged on the spray pipes (31), one ends of the spray pipes (31) are connected to a water tank, a water pump is arranged in the water tank and connected with the spray pipes (31), and cold air pipes (33) are arranged at the top and the bottom of the conveying rollers (2) and connected to a cold air source.

2. The through-water cooling spray system for rod production according to claim 1, wherein: shower (31) set up along the direction of conveying roller (2), and shower (31) set up to six, and wherein two are located the top of conveying roller (2), and two are located the below of conveying roller (2), and one is located the left side of conveying roller (2), and one is located the right side of conveying roller (2).

3. The through-water cooling spray system for rod production according to claim 2, wherein: the six spray pipes (31) are arranged in a regular hexagon shape.

4. The through-water cooling spray system for rod production according to claim 3, wherein: the spray header (32) on the spray pipe (31) is set as a water curtain spray header, and the water curtain of the spray header is in a fan shape.

5. The through-water cooling spray system for rod production according to claim 1, wherein: the cold air pipe (33) is arranged in an S shape and is fixedly arranged between the conveying roller (2) and the spray header (32).

6. The through-water cooling spray system for rod production according to claim 1, wherein: all the parts are made of high-temperature resistant materials.