CN112575154B

CN112575154B - Plate heat treatment cooling system

Info

Publication number: CN112575154B
Application number: CN202011400628.2A
Authority: CN
Inventors: 史宇文
Original assignee: Brackett Equipment Suzhou Co ltd
Current assignee: Brackett Equipment Suzhou Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2022-07-12
Anticipated expiration: 2040-12-02
Also published as: CN112575154A

Abstract

The utility model relates to a steel heat treatment technical field specifically is a panel heat treatment cooling system, and it includes the support frame, is provided with drive roller, heating furnace and the cooler bin of setting on the support frame that is used for driving panel to remove on the support frame, is provided with the descaling device between heating furnace and the cooler bin, still is provided with preheating device on the support frame, and preheating device sets up the one side of keeping away from the cooler bin at the heating furnace. The descaling device in this application can act on steel, and the descaling device can get rid of the cinder on the steel, can improve the quality of steel to when processing steel, adopt automatic means to get rid of the cinder on steel surface, improve degree of automation. Before heating steel, preheating device can play the effect of preheating to steel, reduces the steel before the heating and the too big deformation that leads to of the back difference in temperature before the heating, guarantees the quality of steel.

Description

Plate heat treatment cooling system

Technical Field

The application relates to the field of steel heat treatment technology, in particular to a plate heat treatment cooling system.

Background

At present, in order to meet different use requirements of various mechanical parts and tools, the rigidity, hardness, wear resistance, fatigue strength, toughness and the like of steel need to be greatly improved, and various performances of the steel need to be improved by a quenching mode in the production process of the steel.

Quenching is a heat treatment process of metals in which a metal workpiece is heated to a suitable temperature and held for a period of time, and then immersed in a quenching medium for rapid cooling. Common quenching media are brine, water, mineral oil, air, and the like. In the traditional quenching process, the steel can deform or the surface of the steel can be uneven, so that the quality of the steel can be influenced, and more subsequent treatment needs to be carried out on the steel.

In view of the above-mentioned related art, the inventors consider that there is a defect that the quality of steel processed by the conventional quenching process is low.

Disclosure of Invention

In order to improve the quality of steel after heat treatment, the application provides a plate heat treatment cooling system.

The application provides a panel heat treatment cooling system adopts following technical scheme:

the utility model provides a panel thermal treatment cooling system, includes the support frame, be provided with drive roller, heating furnace and the cooler bin of setting on the support frame that is used for driving panel to remove on the support frame, be provided with the descaler between heating furnace and the cooler bin.

Through adopting above-mentioned technical scheme, steel is after the heating, and the descaling device can act on steel, and the descaling on the steel can be got rid of to the descaling device, makes the surperficial level and more smooth of steel, and after the cooling, the steel surface can not remain the cinder that is difficult to get rid of, can improve the quality of steel. And when the steel is processed, the oxide skin on the surface of the steel is removed by adopting an automatic means, so that the automation degree is improved. Before heating steel, preheating device can play the effect of preheating to steel, reduces the steel before the heating and the too big deformation that leads to of the back difference in temperature of heating, guarantees the quality of steel.

Preferably, the descaling device includes the air-supply line with the cooler bin rigid coupling, the air-supply line intercommunication has upper branch pipe and lower branch pipe, the air outlet of upper branch pipe is located the top of panel, the air outlet of lower branch pipe is located the below of panel, all be connected with the air knife on upper branch pipe and the lower branch pipe, the air outlet of air knife sets up towards panel.

Through adopting above-mentioned technical scheme, the air-supply line can guide the air current to during last branch pipe and the lower branch pipe, and rethread air knife guides the air current to the steel surface, and the air current can blow off the cinder on steel surface, realizes the automatic descaling of steel, improves the quality of steel.

Preferably, the lower end of the air knife is inclined toward one side of the cooling box.

Through adopting above-mentioned technical scheme, the air knife that the slope set up can make the air current form certain angle, and the intensity of air current is bigger when blowing the oxidation skin, and the effect of descaler is better.

Preferably, the support frame is further provided with a preheating device, the preheating device is arranged on one side, away from the cooling box, of the heating furnace, a cooling water tank is arranged at the upper end of the cooling box, the cooling water tank is communicated with a spray pipe, the spray pipe extends into the cooling box, and a spray opening facing the plate is formed in the spray pipe;

the cooling box inner wall both sides all are fixed and are provided with the collection passageway, set up on the collection passageway and collect the mouth, it is linked together with preheating device to collect the passageway.

Through adopting above-mentioned technical scheme, in steel entered into cooling water tank after the heating, the shower can utilize the cooling water to spray steel, realizes the quenching process of steel. Can produce a large amount of steam when the cooling water cools off steel, the heat of steam is higher to can influence operational environment, the collection passageway can be collected high temperature steam, and can utilize high temperature steam to preheat steel, abundant utilization the energy. And the steel after preheating is not easy to deform when being heated.

Preferably, the two collecting channels are internally provided with a first filtering mechanism for intercepting impurities, a second filtering mechanism for intercepting water vapor and a third filtering mechanism, and the first filtering mechanism, the second filtering mechanism and the third filtering mechanism are sequentially arranged along the air flow direction.

Through adopting above-mentioned technical scheme, first filtering mechanism, second filtering mechanism and third filtering mechanism in the collection passageway can filter high temperature steam, can filter impurity and moisture in the high temperature steam, when carrying out recycle to high temperature steam, only utilize its high temperature to preheat steel, impurity and steam in the high temperature steam can not influence other quality and the performance of steel, guarantee the quality of steel.

Preferably, the first filtering mechanism comprises a first filtering screen plate and a second filtering screen plate which are fixedly arranged at the collecting opening, the first filtering screen plate and the second filtering screen plate are both arranged in an inclined shape, and one ends of the first filtering screen plate and the second filtering screen plate are connected with each other.

Through adopting above-mentioned technical scheme, the impurity in the high-temperature steam can be intercepted to the first filter screen board that the slope set up and second filter screen board, guarantees to carry out the cleaner more of the high-temperature gas who preheats steel, guarantees the quality of steel.

Preferably, the second filtering mechanism comprises a first baffle and a second baffle which are fixedly connected with the collecting channel, a first ventilation screen plate is arranged at the lower end of the first baffle, a second ventilation screen plate is arranged at the upper end of the second baffle, and the first baffle and the second baffle are both perpendicular to the side wall of the collecting channel.

Through adopting above-mentioned technical scheme, after gas filters through first filter mechanism, gas flows to between first baffle and the second baffle from first ventilation otter board under the interception effect of first baffle, and the air current receives the effect of blockking of second baffle again to continue to flow to collecting channel next part in the second ventilation otter board, the first baffle and the second baffle that set up in the opposite can play the effect of slowing down to the air current, thereby can guarantee the abundant filtration to high temperature air current.

Preferably, the lower end of the collecting channel is communicated with a wastewater recovery channel, the wastewater recovery channel is arranged between the first baffle and the second baffle, filtering balls are filled between the first baffle and the second baffle and in the wastewater recovery channel, the lower end of the wastewater recovery channel is communicated with a drain pipe, and a water filtering screen plate is fixedly arranged between the drain pipe and the wastewater recovery channel.

By adopting the technical scheme, the filtering balls in the first baffle, the second baffle and the wastewater recovery channel can fully filter high-temperature airflow, and the filtering balls can absorb water vapor in the high-temperature airflow so as to intercept the water vapor in the high-temperature airflow. The wastewater may flow into the wastewater recovery channel through the water filtering mesh plate, thereby discharging the wastewater.

Preferably, one side of the wastewater recovery channel is communicated with a filter ball recovery channel, the filter ball recovery channel comprises a ball inlet pipe, a communicating pipe and a ball discharging pipe which are sequentially communicated, and the ball discharging pipe is communicated with the upper end of the collection channel.

Through adopting above-mentioned technical scheme, absorbed more moisture in the filter ball after filtering high temperature gas, the filter ball can enter into filter ball recovery passageway, and the filter ball enters into communicating pipe from the inlet ball pipe, after carrying out recovery processing to the filter ball, the filter ball revolves to the collecting channel in from the volleyball pipe to can carry out reuse, guarantee good filtering quality to the filter ball.

Preferably, the communicating pipe is vertically arranged, a moving rod penetrates through the communicating pipe in a sliding mode, the moving rod is a hollow rod, a hot air pipe is communicated with the moving rod, a ventilating piece is fixedly connected to the upper end of the moving rod, and the horizontal height of the ball outlet end of the volleyball pipe is lower than that of the ball inlet end of the volleyball pipe.

By adopting the technical scheme, after the filter ball enters the communicating pipe, the hot air pipe in the moving rod can guide hot air flow into the communicating pipe, the hot air flow can dry moisture in the filter ball, and after the drying, the moving rod moves upwards, so that the filter ball in the communicating pipe can be propped to the volleyball pipe, and the filter ball can be reused.

In summary, the present application includes at least one of the following beneficial technical effects:

1. after the steel is heated, the descaling device can act on the steel, and the descaling device can remove scale on the steel, so that the quality of the steel can be improved;

2. before the steel is heated, the preheating device can preheat the steel, so that the possibility of deformation caused by overlarge temperature difference between the steel before heating and the steel after heating is reduced, and the quality of the steel is ensured;

3. the air knife arranged obliquely can enable the air flow to form a certain angle, the strength of the air flow is higher when the scale is blown, and the scale removing effect is better;

4. the collecting channel can collect high-temperature water vapor to can utilize high-temperature water vapor to preheat steel, abundant utilization the energy, and steel after preheating is non-deformable when heating.

Drawings

FIG. 1 is a schematic view of the overall structure of a plate heat treatment cooling system.

FIG. 2 is a schematic view showing the detailed structure of the scale removing apparatus.

Fig. 3 is a schematic view showing a specific structure in the collecting channel.

Fig. 4 is an enlarged schematic view of a portion a of fig. 3.

Fig. 5 is a schematic view showing a specific structure in the wastewater reclamation channel.

Description of reference numerals: 1. a support frame; 2. a drive roller; 3. heating furnace; 4. a cooling tank; 5. a cooling water tank; 6. a preheating device; 7. a heat preservation channel; 8. a scale removing device; 81. an air inlet pipe; 82. an upper branch pipe; 83. a lower branch pipe; 84. an air knife; 10. a collection channel; 11. a first filter mechanism; 111. a first filter screen plate; 112. a second filter screen plate; 12. a second filter mechanism; 121. a first baffle plate; 122. a second baffle; 123. a first ventilation screen plate; 124. a second ventilation screen; 13. a third filtering mechanism; 14. a wastewater recovery channel; 15. filtering balls; 16. a filter ball recovery channel; 161. a ball inlet pipe; 162. a communicating pipe; 163. a ball arranging pipe; 17. a travel bar; 18. a hot air pipe; 19. a breathable sheet; 20. a drain pipe; 21. a water filtering screen plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses panel thermal treatment cooling system. Referring to fig. 1, a plate heat treatment cooling system comprises a support frame 1, a driving roller 2 used for driving a plate to move, a heating furnace 3 and a cooling box 4 arranged on the support frame 1 are arranged on the support frame 1, a cooling water tank 5 is arranged at the upper end of the cooling box 4, a preheating device 6 is arranged on the support frame 1, the preheating device 6 is arranged on one side, away from the cooling box 4, of the heating furnace 3, the preheating device 6 is communicated with the cooling box 4 through a heat preservation channel 7, and a descaling device 8 is arranged between the heating furnace 3 and the cooling box 4.

The operation is driven through drive roller 2 to panel, and panel enters into preheating device 6 earlier at the in-process that removes, and preheating device 6 preheats panel, and panel after preheating enters into heating furnace 3, and heating furnace 3 heats panel, and panel after the heating gets rid of its surperficial cinder through descaling device 8 earlier, and the panel cools off in entering into cooler bin 4 again. High-temperature steam generated in the cooling process enters the preheating device 6 through the heat-insulating channel 7 after being treated, so that the plate is preheated, and the quality of the plate in the quenching process is ensured.

Referring to fig. 2, the descaling device 8 includes an air inlet pipe 81 fixedly connected to the cooling box 4, the air inlet pipe 81 is communicated with an upper branch pipe 82 and a lower branch pipe 83, an air outlet of the upper branch pipe 82 is located above the plate, an air outlet of the lower branch pipe 83 is located below the plate, air knives 84 are connected to the upper branch pipe 82 and the lower branch pipe 83, air outlets of the air knives 84 are arranged toward the plate, and lower ends of the air knives 84 are inclined toward one side of the cooling box 4. The air inlet end of the air inlet pipe 81 can be provided with a high-pressure fan, the high-pressure fan drives air flow to operate, and oxide skin on the surface of a steel piece can be blown off, so that the smoothness of the surface of the steel after quenching can be guaranteed, and the quality of the steel can be guaranteed.

Referring to fig. 2, the cooling water tank 5 is communicated with a spray pipe, the spray pipe extends into the cooling water tank 4, and a spray opening facing the plate is formed in the spray pipe. And the heated plate is moved to the position below the spraying opening, and the cooling water is contacted with the plate to cool the plate. Produce a large amount of high temperature steam in the cooling process, 4 inner wall both sides of cooler bin are all fixed and are provided with collection passageway 10, have seted up on the collection passageway 10 and have collected the mouth, but the collection passageway 10 outside intercommunication has the draught fan, and high temperature steam can get into collection passageway 10, and collection passageway 10 is linked together with heat preservation passageway 7. The high-temperature water vapor can enter the preheating device 6 to preheat the plate after being treated by the collecting channel 10 and insulated by the insulation channel 7.

Referring to fig. 3, a first filtering mechanism 11, a second filtering mechanism 12 and a third filtering mechanism 13 are sequentially arranged in the two collecting channels 10 along the airflow flowing direction.

Referring to fig. 4, the first filtering mechanism 11 includes a first filtering screen plate 111 and a second filtering screen plate 112 fixedly disposed at the collecting port, the first filtering screen plate 111 and the second filtering screen plate 112 are both disposed in an inclined shape, one ends of the first filtering screen plate 111 and the second filtering screen plate 112 are connected to each other, and the first filtering screen plate 111 and the second filtering screen plate 112 are disposed in a V shape. And the tips of the first filter screen plate 111 and the second filter screen plate 112 crossing each other are arranged toward the side of the cooling tank 4, and at least two groups of the first filter screen plate 111 and the second filter screen plate 112 may be arranged. The first filter screen plate 111 and the second filter screen plate 112 can intercept impurities in high-temperature water vapor, so that high-temperature gas entering the collecting channel 10 is relatively clean.

Referring to fig. 4, the second filtering mechanism 12 includes a first baffle 121 and a second baffle 122 fixedly connected to the collecting channel 10, a first ventilation screen 123 is disposed at a lower end of the first baffle 121, a second ventilation screen 124 is disposed at an upper end of the second baffle 122, and both the first baffle 121 and the second baffle 122 are perpendicular to a side wall of the collecting channel 10. The interception of the airflow by the first baffle 121 and the second baffle 122 can reduce the flow rate and improve the filtering effect.

Referring to fig. 4, the third filtering mechanism 13 may be configured as a plurality of filtering cotton sheets fixedly connected to the collecting channel 10, and the filtering cotton sheets can absorb residual moisture in the high-temperature gas, so as to ensure that the gas preheated for the plate is drier, and ensure the quality of the plate.

Referring to fig. 4 and 5, the lower end of the collecting channel 10 is communicated with a wastewater recovery channel 14, the wastewater recovery channel 14 is arranged between the first baffle 121 and the second baffle 122, the filtering balls 15 are filled between the first baffle 121 and the second baffle 122 and in the wastewater recovery channel 14, and the filtering balls 15 can be round balls made of water-absorbent ceramic materials. One side of the waste water recycling channel 14 is communicated with a filter ball recycling channel 16, the filter ball recycling channel 16 comprises a ball inlet pipe 161, a communicating pipe 162 and a ball discharging pipe 163 which are sequentially communicated, and the ball discharging pipe 163 is communicated with the upper end of the collecting channel 10. Ball inlet tube 161 and volleyball 163 are the slope form setting, and ball inlet tube 161 is close to the one end downward sloping of communicating pipe 162, and the one end downward sloping of communicating pipe 162 is kept away from to volleyball 163, and volleyball 163 goes out the level of ball one end and is less than the level of ball inlet one end promptly, and the vertical setting of communicating pipe 162, filter ball 15 in the filter ball recovery passageway 16 can enter into communicating pipe 162 from ball inlet tube 161, in entering volleyball 163 after recovery processing again.

Referring to fig. 5, a moving rod 17 is slidably inserted into a communicating pipe 162, and a side wall of the moving rod 17 may be connected to a horizontal driving member such as an air cylinder, an electric cylinder, or an oil cylinder through a connecting rod, so as to drive the moving rod 17 to slide in the communicating pipe 162. The moving rod 17 is a hollow rod, a hot air pipe 18 is communicated in the moving rod 17, a breathable sheet 19 is fixedly connected to the upper end of the moving rod 17, and the breathable sheet 19 can be made of non-woven fabrics. The hot air pipe 18 introduces high-temperature gas into the moving rod 17, after the filter balls 15 enter the communicating pipe 162, the high-temperature gas acts on the filter balls 15 to dry the filter balls 15, after drying, the moving rod 17 slides, the moving rod 17 moves upwards, the moving rod 17 abuts against the filter balls 15 in the communicating pipe 162, the filter balls 15 move to the volleyball pipe 163, and recycling of the filter balls 15 is achieved.

Referring to fig. 4, a drain pipe 20 is communicated with the lower end of the wastewater recovery channel 14, a water filter screen 21 is fixedly arranged between the drain pipe 20 and the wastewater recovery channel 14, filtered water enters the drain pipe 20 through the water filter screen 21, and the drain pipe 20 discharges sewage to realize the filtration treatment of high-temperature water vapor.

The implementation principle of a plate heat treatment cooling system in the embodiment of the application is as follows: the operation is driven through drive roller 2 to panel, and panel enters into preheating device 6 earlier at the in-process that removes, and preheating device 6 preheats panel, and the panel after preheating enters into heating furnace 3, and heating furnace 3 heats panel.

The heated plate firstly passes through the descaling device 8, namely the plate enters between the two air knives 84, and the air knives 84 can blow off oxide skin on the surface of the steel piece, so that the flatness of the surface of the steel after quenching can be ensured, and the quality of the steel can be ensured.

The heated plate is moved to the lower part of the spraying opening, the cooling water is contacted with the plate to cool the plate, and a large amount of high-temperature water vapor is generated in the cooling process. The high-temperature water vapor enters the collecting channel 10, and the first filtering mechanism 11, the second filtering mechanism 12 and the third filtering mechanism 13 in the collecting channel 10 can filter the high-temperature water vapor.

Wherein utilize among the second filtering mechanism 12 to filter the steam in the high-temperature gas with filtering ball 15, filtering ball 15 can realize repeated regeneration, after filtering ball 15 entered into communicating pipe 162, high-temperature gas acted on filtering ball 15, dries filtering ball 15, after drying, makes carriage release lever 17 slide, carriage release lever 17 moves upwards, carriage release lever 17 supports filtering ball 15 in communicating pipe 162, makes filtering ball 15 move to volleyball pipe 163, realizes filtering ball 15's recycle.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a panel heat treatment cooling system, includes support frame (1), be provided with drive roller (2), heating furnace (3) and the cooler bin (4) of setting on support frame (1) that are used for driving panel to remove on support frame (1), its characterized in that: a scale removing device (8) is arranged between the heating furnace (3) and the cooling box (4);

the support frame (1) is further provided with a preheating device (6), the preheating device (6) is arranged on one side, away from the cooling box (4), of the heating furnace (3), a cooling water tank (5) is arranged at the upper end of the cooling box (4), the cooling water tank (5) is communicated with a spray pipe, the spray pipe extends into the cooling box (4), and a spray opening facing the plate is formed in the spray pipe;

the two sides of the inner wall of the cooling box (4) are both fixedly provided with collecting channels (10), collecting ports are formed in the collecting channels (10), and the collecting channels (10) are communicated with the preheating device (6);

a first filtering mechanism (11) for intercepting impurities, a second filtering mechanism (12) for intercepting water vapor and a third filtering mechanism (13) are arranged in each of the two collecting channels (10), and the first filtering mechanism (11), the second filtering mechanism (12) and the third filtering mechanism (13) are sequentially arranged along the airflow flowing direction;

the second filtering mechanism (12) comprises a first baffle plate (121) and a second baffle plate (122) which are fixedly connected with the collecting channel (10), a first ventilation screen plate (123) is arranged at the lower end of the first baffle plate (121), a second ventilation screen plate (124) is arranged at the upper end of the second baffle plate (122), and the first baffle plate (121) and the second baffle plate (122) are both vertical to the side wall of the collecting channel (10);

the lower end of the collecting channel (10) is communicated with a wastewater recovery channel (14), the wastewater recovery channel (14) is arranged between a first baffle (121) and a second baffle (122), filter balls (15) are filled between the first baffle (121) and the second baffle (122) and in the wastewater recovery channel (14), the lower end of the wastewater recovery channel (14) is communicated with a drain pipe (20), and a water filter screen plate (21) is fixedly arranged between the drain pipe (20) and the wastewater recovery channel (14);

one side of the wastewater recovery channel (14) is communicated with a filter ball recovery channel (16), the filter ball recovery channel (16) comprises a ball inlet pipe (161), a communicating pipe (162) and a ball discharge pipe (163) which are sequentially communicated, and the ball discharge pipe (163) is communicated with the upper end of the collection channel (10);

communicating pipe (162) is vertical, and slide in communicating pipe (162) and wear to be equipped with carriage release lever (17), carriage release lever (17) are hollow pole, the intercommunication has hot-blast main (18) in carriage release lever (17), carriage release lever (17) upper end fixedly connected with air permeability piece (19), the level that volleyball pipe (163) goes out the ball one end is less than the level of goal one end.

2. A plate heat treatment cooling system as defined in claim 1, wherein: the descaling device (8) comprises an air inlet pipe (81) fixedly connected with the cooling box (4), the air inlet pipe (81) is communicated with an upper branch pipe (82) and a lower branch pipe (83), an air outlet of the upper branch pipe (82) is located above the plate, an air outlet of the lower branch pipe (83) is located below the plate, the upper branch pipe (82) and the lower branch pipe (83) are both connected with air knives (84), and air outlets of the air knives (84) face towards the plate.

3. A plate heat treatment cooling system as defined in claim 2, wherein: the lower end of the air knife (84) inclines towards one side of the cooling box (4).

4. A plate heat treatment cooling system as defined in claim 1, wherein: the first filtering mechanism (11) comprises a first filtering screen plate (111) and a second filtering screen plate (112) which are fixedly arranged at a collecting opening, the first filtering screen plate (111) and the second filtering screen plate (112) are both arranged in an inclined shape, and one ends of the first filtering screen plate (111) and the second filtering screen plate (112) are connected with each other.