CN214441892U - Accuse cold water tank is pricked in accuse - Google Patents
Accuse cold water tank is pricked in accuse Download PDFInfo
- Publication number
- CN214441892U CN214441892U CN202120630130.9U CN202120630130U CN214441892U CN 214441892 U CN214441892 U CN 214441892U CN 202120630130 U CN202120630130 U CN 202120630130U CN 214441892 U CN214441892 U CN 214441892U
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- CN
- China
- Prior art keywords
- water
- water tank
- accuse
- controlled
- cooling
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- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 128
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 238000005096 rolling process Methods 0.000 claims abstract description 16
- 238000010583 slow cooling Methods 0.000 claims abstract description 16
- 239000000498 cooling water Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 5
- 229910000734 martensite Inorganic materials 0.000 abstract description 8
- 238000003860 storage Methods 0.000 abstract description 8
- 230000003014 reinforcing effect Effects 0.000 abstract description 4
- 229910001563 bainite Inorganic materials 0.000 abstract description 3
- 229910000859 α-Fe Inorganic materials 0.000 abstract description 3
- 230000007704 transition Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Abstract
The utility model discloses a accuse cold water storage cistern is pricked in accuse, including the water tank body, this internal entry director, cooler, slow cooling nest of tubes and the export director of arranging in proper order according to rolling direction of water tank, wherein the water tank body has the sealed casing, and the bottom is equipped with water, gas discharge mouth, is provided with cooling water inlet quick-operation joint and compressed air inlet quick-operation joint on the casing, and the cooler comprises intake section, turbulent flow pipe and play water section. Adopt the utility model discloses a accuse cold water storage cistern is pricked in accuse realizes the accurate control to reinforcing bar surface cooling temperature to reduce limit portion bainite and martensite phase transition initial point, refine control reinforcing bar core ferrite grain size, control base circle surface does not produce the martensite.
Description
Technical Field
The utility model relates to a metallurgical production field, concretely relates to accuse cold water storage cistern is pricked in accuse.
Background
Because of the requirements on the metallographic structure of the bar in the new national standard GB/T1499.2-2018, the temperature requirements on online controlled rolling and controlled cooling are higher, if the temperature is too high, the mechanical property of the product can not meet the requirements, the mechanical property can only be improved by adding alloy, the production cost is increased, and if the temperature is too low, the base circle can easily generate martensite, so that the product can not meet the requirements of the new national standard, and the temperature for cooling the surface of the steel bar needs to be accurately controlled. The original equipment is easy to generate a large amount of fog in the cooling process, and especially the whole fog in a cooling control area is diffused, so that the temperature measurement is inaccurate, and the visual detection cannot be realized, so that the accurate temperature control and the disadvantage thereof are difficult to realize.
In addition, the original rolling and cooling control equipment is arranged on a trolley or a fixed support, so that the workshop is required to be stopped for replacement if the equipment with different specifications is replaced, the workload is high, and the time is long.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a accuse cold water storage cistern is pricked in accuse realizes the accurate control to reinforcing bar surface cooling temperature to reduce limit portion bainite and martensite phase transition initial point, refine control reinforcing bar core ferrite grain size, control base circle surface does not produce the martensite.
According to the utility model discloses a accuse cold water storage cistern is pricked in accuse, including the water tank body, this internal entry director, cooler, slow cooling nest of tubes and the export director of arranging in proper order according to rolling direction of water tank, wherein the water tank body has the closed shell, and the bottom is equipped with water, gas discharge mouth, is provided with cooling water inlet quick-operation joint and compressed air inlet quick-operation joint on the casing, and the cooler comprises water inlet section, turbulent flow pipe and play water section.
Preferably, the water inlet section of the cooler adopts a spiral nozzle, and the front end of the spiral nozzle is butted with the turbulent pipe; the cooling water enters the turbulent tube from the cooling water inlet through the periphery of the spiral nozzle in a tangential direction, and the bar enters the turbulent tube through the inner cavity of the spiral nozzle in an axial direction.
Preferably, the water outlet section of the cooler comprises a water discharge section and a water interception section, and the water interception section is coaxially provided with a water outlet guide and a water interception nozzle along the rolling direction; the water outlet compressed air inlet is vertically arranged at the rear end of the water outlet guide device and is used for vertically intercepting water on the surface of the bar; and a water-intercepting compressed air inlet is connected with the water-intercepting nozzle to intercept water of the bar material in the circumferential direction.
Preferably, a spare water catcher is arranged behind the slow cooling pipe group, a water catching guide and a water catching nozzle are coaxially arranged on the water catcher, and a water catching compressed air inlet is connected with the water catching nozzle to circumferentially catch water for the bars.
Preferably, two rolling and cooling control devices, namely a single line and two splitting lines, are arranged in the water tank body side by side.
The utility model discloses a accuse cold water storage cistern is pricked in accuse has following advantage:
the equipment is installed on the trolley or the fixed support, but the required production equipment can be installed in the standby water tank on line, so that only one water tank needs to be installed on the line, the workload is low, and the equipment replacement time is only 1/4 of the original replacement time.
Because the existing rolling and cooling control equipment is completely arranged in the water tank, the whole cooling process is carried out in the water tank, and the generated mist is only diffused in the water tank and then is cooled by cooling water through a water outlet to become condensed water and cooling wastewater which are discharged together. A small amount of fog is generated in a production field, and visual detection of field operators and accurate temperature measurement of a temperature measuring instrument are not influenced, so that online accurate temperature control is realized.
Because the water intercepting section and the water catcher are additionally arranged in the water tank, the generation of attached water on the surface of the steel bar is prevented to the greatest extent, the temperature return effect of the steel bar in the slow cooling pipe is ensured, meanwhile, enough initial temperature is provided for the cooling of the next stage, the generation of tempered martensite on the surface of the steel bar is prevented, and the metallographic requirement of a new national standard is ensured.
Drawings
Fig. 1 is a schematic front view of a bundle control cold water tank according to the present invention.
Fig. 2 is a schematic plan view of a bundle control cold water tank according to the present invention.
Fig. 3 is a schematic side view of a bundle control cold water tank according to the present invention.
Detailed Description
The following describes in detail a specific embodiment of the bundle control cold water tank of the present invention with reference to the accompanying drawings. It should be understood by those skilled in the art that the following described embodiments are only illustrative of the present invention and are not intended to limit the same in any way.
Referring to fig. 1-3, according to the utility model discloses a accuse cold water storage cistern is pricked in accuse includes water tank body 1, arranges entry director 2, cooler 3, slow cooling nest of tubes 4 and export director 6 according to rolling direction in proper order in the water tank body 1, and wherein water tank body 1 has the closed shell, and the bottom is equipped with water, gas discharge mouth, is provided with cooling water inlet quick-operation joint 7 and compressed air inlet quick-operation joint 8 on the casing. Two pieces of controlled rolling and controlled cooling equipment with a single line and two splitting lines are arranged in the water tank body 1 side by side.
The cooler 3 consists of a water inlet section 9, a turbulence pipe 10 and a water outlet section 11. The water inlet section 9 adopts a spiral nozzle 12, the front end of the spiral nozzle 12 is conical, and a spiral annular seam is arranged on the outer surface of the front end. The forward end of the screw nozzle 12 is butted against the turbulence pipe 10. During operation, cooling water enters the turbulent flow pipe 10 from the cooling water inlet 13 through the spiral circular seam of the spiral nozzle 12 in a tangential mode, the bar enters the turbulent flow pipe 10 through the inner cavity of the spiral nozzle 12 in the axial direction, and the tangential water inlet cooling mode can greatly improve the heat exchange efficiency between the cooling medium and the bar.
The water outlet section 11 of the cooler 3 comprises a water outlet section 14 and a water interception section 15, cooling water in the turbulent pipe 10 naturally drains through the water outlet section 14, a bar with surface water enters the water interception section 15, and the water interception section 15 is coaxially provided with a water outlet guide 16 and a water interception nozzle 18 according to the rolling direction. The water outlet compressed air inlet 17 is vertically arranged at the rear end of the water outlet guide device 16 and is used for vertically intercepting the water on the surface of the bar; and a water-intercepting compressed air inlet 19 is connected with the water-intercepting nozzle 18 to intercept the water of the bar material in the circumferential direction. Through the combination of vertical water interception and circumferential water interception, the water on the surface of the bar is efficiently removed.
The slow cooling tube group 4 is composed of a plurality of slow cooling tubes 20 arranged in the rolling line direction. In some cases, the slow cooling pipes 20 in the same row may be divided into two groups in the front-rear direction, the first group being used for injecting compressed nitrogen gas, and the second group being used for injecting compressed air or oxygen gas. The rod after wearing the water with the steel rolling from a left side to the right side through the transverse passage of every slow cooling pipe 20, and first group slow cooling pipe 20 spouts compressed nitrogen to the rod for weather the remaining moisture content in rod surface, thereby the effective quick water film of cleaing away rod surface formation. The second group of slow cooling pipes 20 spray compressed air or oxygen to the bar, and the surface of the dried bar is oxidized to form an oxide film. Through the process treatment, the whole outer surface of the bar can be uniformly subjected to dewatering and oxidation treatment, so that the surface of steel is prevented from rusting, and the surface strength of the bar is increased.
In some cases, it is necessary to increase the cooling degree of the rods, and the slow cooling tube group 4 can be replaced with another group of coolers 3, so that a spare water catcher 5 is provided at the end of the tank body 1, and the spare water catcher 5 is coaxially provided with a water catcher guide 21 and a water catcher nozzle 22. And a water-catching compressed air inlet 23 is connected with the water-catching nozzle 22 to catch water of the bar material in the circumferential direction.
The cooling water inlet 13 is connected with the cooling water inlet quick connector 7 on the shell through a metal hose. The water outlet compressed air inlet 17, the water cut-off compressed air inlet 19, the water catching compressed air inlet 23 and the air inlet of the slow cooling pipe 20 are connected with the compressed air inlet quick connector 8 on the shell through metal hoses.
The working process of the controlled-bundle cold water tank of the utility model is briefly described below.
At first, the reinforcing steel bar enters the cooler 3 from the inlet guider 2 at one end of the water tank body 1, the stability of entering the steel bar is guaranteed through inlet guiding, the capacity and the specification of the cooler 3 are designed according to actual conditions, the reinforcing steel bar is cooled to a certain degree through the cooler 3, crystal grains are refined, the strength of the reinforcing steel bar is improved, then the reinforcing steel bar enters the slow cooling pipe group 4 to be reheated, and then enters the next-stage equipment through the outlet guider 6 at the other end of the water tank body 1, so that the required target temperature is reached.
According to the utility model discloses a accuse cold water storage cistern is pricked in accuse mainly comprises cooler, slow cold pipe, water catcher, import and export direction, water tank body and metal collapsible tube, quick-operation joint etc.. The temperature of the lowest cooling point on the surface of the steel bar is accurately controlled, so that the phase transformation starting point of bainite and martensite at the edge part is reduced, the grain size of ferrite at the core part of the steel bar is controlled in a refining way, the martensite is not generated on the surface of a base circle, the microhardness difference of the core surface is not more than 40Hv, and the optimal matching of high quality and low cost of the product is realized; meanwhile, the actual use condition of the field device and the convenience and the practicability of the field device replacement are considered, the combined equipment of the water tank and the controlled rolling and controlled cooling device is developed, the combined equipment has the advantages of simplicity and convenience in installation, the cooler can be replaced offline according to different specifications in production, and the like, meanwhile, the water tank can prevent the generation of fog in the cooling process, and the online temperature measurement accuracy is ensured.
The aforesaid is only the utility model discloses a concrete embodiment, it is not right the utility model discloses do any restriction, all the basis the utility model discloses change and decorate equally to it, all within this patent technical protection scheme's scope.
Claims (5)
1. The utility model provides a accuse is pricked accuse cold water tank which characterized in that: the water tank comprises a water tank body, wherein an inlet guider, a cooler, a slow cooling pipe group and an outlet guider are sequentially arranged in the water tank body according to the rolling direction, the water tank body is provided with a closed shell, a water and gas discharge port is formed in the bottom of the water tank body, a cooling water inlet quick connector and a compressed air inlet quick connector are arranged on the shell, and the cooler is composed of a water inlet section, a turbulent flow pipe and a water outlet section.
2. The controlled-bundle controlled-cold water tank according to claim 1, characterized in that: the water inlet section of the cooler adopts a spiral nozzle, and the front end of the spiral nozzle is butted with the turbulent pipe; the cooling water enters the turbulent tube from the cooling water inlet through the periphery of the spiral nozzle in a tangential direction, and the bar enters the turbulent tube through the inner cavity of the spiral nozzle in an axial direction.
3. The controlled-bundle controlled-cold water tank according to claim 1, characterized in that: the water outlet section of the cooler comprises a water discharge section and a water interception section, and the water interception section is coaxially provided with a water outlet guider and a water interception nozzle in the rolling direction; the water outlet compressed air inlet is vertically arranged at the rear end of the water outlet guide device and is used for vertically intercepting water on the surface of the bar; and a water-intercepting compressed air inlet is connected with the water-intercepting nozzle to intercept water of the bar material in the circumferential direction.
4. The controlled-bundle controlled-cold water tank according to claim 1, characterized in that: and a spare water catcher is arranged behind the slow cooling pipe group, a water catching guide and a water catching nozzle are coaxially arranged on the water catcher, and a water catching compressed air inlet is connected with the water catching nozzle to catch water of the rod material in the circumferential direction.
5. The controlled-bundle controlled-cold water tank according to claim 1, characterized in that: the water tank body is internally provided with a single-line rolling and cooling control device and two splitting lines which are controlled and rolled side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120630130.9U CN214441892U (en) | 2021-03-26 | 2021-03-26 | Accuse cold water tank is pricked in accuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120630130.9U CN214441892U (en) | 2021-03-26 | 2021-03-26 | Accuse cold water tank is pricked in accuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214441892U true CN214441892U (en) | 2021-10-22 |
Family
ID=78175104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120630130.9U Expired - Fee Related CN214441892U (en) | 2021-03-26 | 2021-03-26 | Accuse cold water tank is pricked in accuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214441892U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116493408A (en) * | 2023-05-17 | 2023-07-28 | 江苏省镔鑫钢铁集团有限公司 | Equipment and method for middle rolling, slitting and rolling hot rolled ribbed steel bars |
-
2021
- 2021-03-26 CN CN202120630130.9U patent/CN214441892U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116493408A (en) * | 2023-05-17 | 2023-07-28 | 江苏省镔鑫钢铁集团有限公司 | Equipment and method for middle rolling, slitting and rolling hot rolled ribbed steel bars |
| CN116493408B (en) * | 2023-05-17 | 2023-11-10 | 江苏省镔鑫钢铁集团有限公司 | Equipment and method for middle rolling, slitting and rolling hot rolled ribbed steel bars |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211022 |