CN117363848A

CN117363848A - Air quenching cooling device and air quenching equipment

Info

Publication number: CN117363848A
Application number: CN202311442228.1A
Authority: CN
Inventors: 陶玮; 葛荣
Original assignee: Nanjing Nianda Furnace Science And Technology Co ltd
Current assignee: Nanjing Nianda Furnace Science And Technology Co ltd
Priority date: 2023-10-31
Filing date: 2023-10-31
Publication date: 2024-01-09

Abstract

The application discloses an air quenching cooling device and air quenching equipment, which relate to the field of heat treatment equipment, wherein the air quenching cooling device comprises an air cooling fan, a spray nozzle, a mist homogenizing air passage and a cooling bellows; the spray nozzle is arranged at the air outlet of the air cooling fan, the mist homogenizing air channel is arranged between the air cooling fan and the cooling air box, a plurality of water drop removing structures are arranged in the mist homogenizing air channel, the water drop removing structures correspond to the whole through flow section of the mist homogenizing air channel, water mist can be sprayed into air flow blown out by the air cooling fan, water drops with larger diameters in the water mist are discharged, and the cooling effect and the cooling uniformity of the cooling air are improved. The application also discloses air quenching equipment using the air quenching cooling device.

Description

Air quenching cooling device and air quenching equipment

Technical Field

The application relates to the field of heat treatment equipment, in particular to an air quenching cooling device, and in addition, the application also relates to air quenching equipment.

Background

The quenching is a heat treatment process for heating steel to above critical temperature, preserving heat for a certain time, and cooling at a cooling speed higher than critical cooling speed, thereby obtaining an unbalanced structure mainly comprising martensite. Solution treatment of materials such as aluminum alloys, copper alloys, titanium alloys, tempered glass, etc., or heat treatment processes with rapid cooling processes are also commonly referred to as quenching. The quenching can greatly improve the rigidity, hardness, wear resistance, fatigue strength, toughness and the like of the material, thereby meeting the different use requirements of various mechanical parts and tools and being widely applied in the field of machining.

In the quenching process, the high-temperature material is generally immersed in a quenching medium such as brine, water, mineral oil, or air to cool the high-temperature material in order to increase the cooling rate of the high-temperature material. In the process of contacting the quenching medium at high temperature, the rapid cooling of the part of the material after contacting the quenching medium easily leads to the deformation of the part, so that when the thin-wall part is quenched, the high-temperature thin-wall part is usually cooled by rapidly flowing air, which is commonly called air quenching. The air quenching can reduce the deformation of the product during quenching, and is widely used in the quenching process of the thin-wall product.

However, the cooling speed of air quenching is low, so that the tissue structure of the material is not sufficiently transformed, and the quenching performance of the material is affected; meanwhile, the slower cooling speed also leads to the prolongation of the cooling time of the material, and influences the quenching efficiency. For this reason, an air quenching cooling device has appeared in which a mist of water is sprayed to a product while blowing air, and the cooling rate of the material is increased by utilizing the high heat capacity of water. The existing air quenching cooling device with a spraying function generally uses a fan to blow air to high-temperature materials placed on a conveyor belt, meanwhile, a spray nozzle is arranged at an air outlet of the fan to spray water mist, and air flow drives the water mist to blow the water mist to products on the conveyor belt together, so that the high-temperature materials of the products are cooled. However, water drops with different sizes are usually mixed in the water mist sprayed by the spray nozzle, and the water drops adhere to the high-temperature material under the driving of air flow, so that the material is locally and rapidly cooled, the material is unevenly cooled, and the thin-wall material is easily deformed locally.

Disclosure of Invention

In order to improve the cooling speed of air quenching and ensure the uniformity of material cooling, the application provides an air quenching cooling device and air quenching equipment.

The air quenching cooling device provided by the application adopts the following technical scheme:

an air quenching cooling device comprises an air cooling fan, a spray nozzle, a mist homogenizing air passage and a cooling bellows; the spray nozzle is arranged at the air outlet of the air cooling fan, the mist homogenizing air channel is arranged between the air cooling fan and the cooling air box, a plurality of water drop removing structures are arranged in the mist homogenizing air channel, and the water drop removing structures correspond to the whole through-flow section of the mist homogenizing air channel.

By adopting the technical scheme, the water drops with larger diameters in the water mist sprayed by the spray nozzle can be removed by utilizing the mist homogenizing air passage arranged between the air cooling fan and the cooling air box and the water drop removing structure arranged in the mist homogenizing air passage, so that the mist in the air flow is more uniform, and the uniformity of cooling of the product materials is improved; the water drop structure corresponding to the whole through flow section of the mist homogenizing air passage is utilized, so that water drops with larger diameters in the air flow of any part of the mist homogenizing air passage can be removed, the gasification of water mist with smaller diameters is promoted, and the respective uniformity of water in the air flow is ensured.

In a specific embodiment, the water droplet removing structure comprises a droplet removing panel and a back plate, wherein the droplet removing panel is connected with the back plate, the droplet removing panel is obliquely arranged towards the air inlet direction of the mist homogenizing air channel, and a water receiving groove perpendicular to the air flow direction is arranged on the droplet removing panel.

By adopting the technical scheme, the drip removing panel which is obliquely arranged towards the direction of the air inlet of the mist homogenizing air passage can form a barrier for water drops with larger diameters in the air flow, so that the water drops are attached to the drip removing panel, and the water drops in the air flow are removed; by utilizing the water receiving groove perpendicular to the air flow direction on the drip removing panel, water drops moving along the drip removing panel under the blowing of the air flow can be blocked and contained, and the water drops attached to the drip removing panel are prevented from entering the air flow again under the blowing of the air flow.

In a specific embodiment, the water droplet removing structure is arranged on the windward side of the mist-homogenizing air channel, and the water droplet removing panel and the back plate are arranged in parallel, and the peripheries of the water droplet removing panel and the back plate are connected with each other.

By adopting the technical scheme, the water drop structure arranged on the windward side of the mist-equalizing air channel can block and store water drops with larger diameters in the air flow blown to the windward side of the mist-equalizing air channel, so that the water drops are prevented from entering the air flow again under the blowing of the air flow, and the uniformity of water distribution in the air flow is influenced; by utilizing the structure that the drip removing panel and the backboard are arranged in parallel and are connected with each other at the periphery, water drops can be stored between the drip removing panel and the backboard and discharged through the water discharge holes arranged at the side of the drip removing structure.

In a specific embodiment, the water droplet removing structure is disposed on a side surface of the mist-homogenizing air duct, one side edge of the water droplet removing panel and one side edge of the back plate are connected with each other, and the other side edge is connected with the side wall of the mist-homogenizing air duct.

By adopting the technical scheme, the water drop structure arranged on one side surface of the mist homogenizing gas channel can be used for blocking water drops with larger diameters in the gas flow of the mist homogenizing gas channel from being attached to and contained in the gas flow channel corresponding to the gas outlet of the mist homogenizing gas channel, so that the uniformity of water distribution in the gas flow is improved; the structure that removes the side interconnect of dropping panel and backplate one side, other sides and the lateral wall of samming air flue are connected is utilized, can form the water droplet accommodation space between the lateral wall that removes dropping panel, backplate and samming air flue to discharge through the wash port that sets up at samming air flue wall portion.

In a specific implementation manner, the water droplet removing structure is arranged inside the mist homogenizing air passage, the middle part of the water droplet removing panel is bent along the length direction, two sides of the width direction of the water droplet removing panel are connected with the back plate, and two sides of the length direction of the water droplet removing panel and the back plate are connected with the side wall of the mist homogenizing air passage.

Through adopting above-mentioned technical scheme, utilize the water droplet structure setting of the inside of setting in turn at the equal fog air flue, can be under the circumstances of less increase equal fog channel air resistance for the projection of water droplet structure in equal fog air flue air outlet department covers whole gas outlet, is convenient for get rid of the water droplet in the air current of equal fog air flue different positions; by utilizing the space between the bent drip removing panel and the back plate, the water drops attached to the drip removing panel can be stored and discharged through the water discharge holes arranged on the wall part of the mist equalizing channel.

In a specific implementation mode, a wind box air inlet is formed in one side of the cooling wind box, an air outlet end of the mist homogenizing air channel is inserted into the wind box air inlet and is connected with the wind box air inlet in a sliding mode, and a telescopic driving device is arranged between the mist homogenizing air channel and the cooling wind box.

By adopting the technical scheme, the connecting position of the cooling bellows on the mist equalizing air passage can be adjusted by utilizing the sliding connection between the mist equalizing air passage and the air inlet of the bellows, so that the distance between the air outlet of the bellows of the cooling bellows and a product is adjusted, and the adjustment of the air flow speed and the uniformity of air flow distribution of the cooling product is facilitated; the connection position of the cooling bellows on the mist homogenizing air passage can be conveniently adjusted by using the telescopic driving device arranged between the mist homogenizing air passage and the cooling bellows.

In a specific implementation mode, an air equalizing plate is arranged at the air outlet of the cooling air box, and a plurality of air outlet holes which are uniformly distributed are formed in the air equalizing plate.

Through adopting above-mentioned technical scheme, utilize a plurality of apopores of evenly setting on the air-equalizing plate, can make the cooling air current evenly blow out from the bellows gas outlet, form even cooling air current in the product region, avoided bellows gas outlet middle part air velocity fast, the phenomenon that marginal part air velocity is slow has improved the homogeneity of product cooling.

The application provides an air quenching equipment adopts following technical scheme:

an air quenching device comprises a heating chamber, an air cooling chamber and at least one air quenching device provided by the application, wherein an air quenching conveyor belt is arranged in the air cooling chamber, a cooling bellows is arranged in the air cooling chamber, and an air outlet faces the air quenching conveyor belt.

By adopting the technical scheme, by utilizing the air quenching cooling device provided by the application, uniform water mist can be added into cooling air flow, the humidity of the cooling air is increased, and the cooling speed of high-temperature products is improved; meanwhile, water drops with larger diameters in the air flow are removed, so that the distribution of water in the air flow is more uniform, different parts of the product material can be synchronously cooled, and the deformation of the product in the cooling process is reduced.

In a specific embodiment, a plurality of air quenching cooling devices are arranged, the cooling bellows of the plurality of air quenching cooling devices are respectively arranged at the upper side and the lower side of the air quenching conveyor belt, and the top of the air cooling chamber is communicated with the external space.

Through adopting above-mentioned technical scheme, utilize to divide to establish a plurality of air quenching cooling device in the upper and lower both sides of air quenching conveyer belt, can follow the upper and lower both sides of product conveyer belt simultaneously to the cooling of product air supply, improve the homogeneity of the peripheral cooling air current of product to utilize the top of air cooling room to distribute away the heat, improve the homogeneity of the different position cooling effect of product.

In a specific implementation manner, a plurality of air quenching cooling devices are arranged above the air quenching conveyor belt, the same cooling bellows is used by the plurality of air quenching cooling devices, a plurality of bellows air inlets are formed in the upper side of the cooling bellows, the air outlet end of the mist homogenizing air passage of each air quenching cooling device is respectively inserted into one of the bellows air inlets and can slide relative to the bellows air inlets, the mist homogenizing air passage is fixedly connected with the air cooling chamber, and a telescopic driving device is arranged between the cooling bellows and the air cooling chamber.

Through adopting above-mentioned technical scheme, utilize the setting in the various bellows air inlets of inserting on the cooling bellows of the uniform fog air flue gas outlet end of a plurality of air quenching cooling device, can make the cooling bellows remove for a plurality of uniform fog air flue synchronization, form the synchronous regulation to the distance between a plurality of air quenching cooling device's the air outlet and the air quenching conveyer belt to synchronous regulation a plurality of air quenching cooling device blowout's cooling air current's velocity of flow and homogeneity.

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

1. the water drop structure arranged in the mist homogenizing air passage is utilized, so that the water drops with larger diameters mixed in the water mist can be removed while the air cooling effect is improved by utilizing the water mist sprayed by the spray nozzle, the water drops are prevented from causing local rapid cooling of a thin-wall product, the uniformity of cooling speeds of different parts of the product is ensured, and the deformation of the product is reduced;

2. the arrangement of the plurality of water drop removing structures corresponding to the whole through flow section of the mist equalizing air passage is beneficial to removing water drops in cooling air flow at different parts of the mist equalizing air passage, so that the uniformity of water distribution in the cooling air flow can be improved, and meanwhile, the influence of the water drop removing structures on the resistance of the cooling air flow is reduced;

3. the distance between the air outlet of the air box and the product can be adjusted by utilizing the sliding connection between the cooling air box and the mist equalizing air channel, so that the flow speed of cooling air flow is adjusted, and the cooling speed of the product is adjusted;

4. the distances between cooling air flows blown out by the air quenching cooling devices and products can be synchronously adjusted by utilizing sliding connection between the mist equalizing structures of the air quenching cooling devices and the air inlets of the air boxes on the cooling air box, so that the synchronous adjustment of the cooling air flows formed by the air quenching cooling devices is formed.

Drawings

FIG. 1 is a schematic diagram of an air quench cooling apparatus in one embodiment of an air quench cooling apparatus of the present application.

Fig. 2 is a side view of an air quench cooling device in one embodiment of an air quench cooling apparatus of the present application.

Fig. 3 is a top view of an air quench cooling device in one embodiment of an air quench cooling apparatus of the present application.

FIG. 4 is a schematic diagram of mist channels in one embodiment of an air quench cooling device of the present application.

Fig. 5 is a schematic view of mist channels in another embodiment of an air quench cooling device of the present application.

FIG. 6 is a schematic illustration of the connection of the mist air duct to the cooling windbox in one embodiment of the air quench apparatus of the present application.

Reference numerals illustrate: 1. an air cooling fan; 2. a spray nozzle; 3. a mist equalizing air passage; 4. cooling the bellows; 41. an air inlet of the bellows; 42. a wind equalizing plate; 5. a water droplet removing structure; 51. a drip removal panel; 511. a water receiving tank; 52. a back plate; 53. a water discharge hole; 6. a telescopic driving device; 7. a cooling chamber; 8. and (5) air quenching the conveyor belt.

Detailed Description

The following detailed description of specific embodiments of the present application refers to the accompanying drawings. It should be understood that the detailed description is presented herein for purposes of illustration and explanation only and is not intended to limit the present application.

In the present application, unless otherwise stated, the azimuth words such as "upper and lower" are used to indicate azimuth or positional relationship based on the azimuth or positional relationship when the air-quench device of the present application is actually used. The azimuth and positional relationship indicated by the azimuth words "front", "rear" are based on the normal conveying direction of the conveyor belt when the air quenching apparatus of the present application is operating normally. The orientation of the air quenching device and the parts thereof is the same as the above orientation.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; either directly or indirectly via an intermediate medium, or in communication with each other or in interaction with each other. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

One embodiment of the air-quench cooling apparatus of the present application, as shown in fig. 1-2, includes an air cooler 1, a spray nozzle 2, a mist duct 3, and a cooling windbox 4. The air cooling fan 1 is a blower device driven by a motor, is a centrifugal fan driven by the motor in general, can generate larger air quantity under the driving of the motor, blows the heated high-temperature product through the larger air quantity, ensures that the temperature of the product is quickly reduced, and realizes the quenching effect of the product.

The spray nozzle 2 is arranged at the air outlet of the air cooling fan 1 and is used for spraying water mist into the air blown out by the air cooling fan 1 and improving the moisture content in the air flow. When the air flow blows to the high-temperature product, water in the air contacts with the product, and the heat capacity of the water is high, and more heat in the product is absorbed by the gasification of the micro water mist, so that the cooling speed of the product is improved. The spray nozzle 2 may use various nozzles capable of generating fine mist droplets, and a fan-shaped nozzle is generally used to increase the spray range of the mist. The spray nozzle 2 may be used alone or in combination of a plurality of nozzles. The cooling speed of the product can also be controlled by controlling the water spraying of the spray nozzle 2. The product cooling speed is improved, so that the quenching effect of the product can be improved, the cooling time is shortened, and the air quenching efficiency of the product is improved.

The mist equalizing air passage 3 is arranged between the air cooler 1 and the cooling bellows 4, and can spray water mist into air flow blown out by the air cooler 1. The air flow with water mist enters the mist equalizing air channel 3 and flows into the cooling air box 4 through the mist equalizing air channel 3, and air flow with uniform flow speed is formed in the cooling air box 4 and is blown to quenching products in a larger range, so that the temperature of the products in the larger range is uniformly reduced. In general, water droplets with larger diameters are mixed in water mist sprayed by the spray nozzle 2, and the water droplets are blown to a product along with air flow, absorb a large amount of heat and gasify after contacting the product, so that the temperature of a local area of the product is rapidly reduced, a larger temperature difference is generated at the local area of the product, the local deformation and cracking of a thin-wall product are easily caused, and the quenching quality of the product is influenced. Be provided with a plurality of water droplet structures 5 in the equal fog air flue 3, water droplet structures 5 can use various structures that can intercept, get rid of the great water droplet of diameter in the air current, like interception net, interception strip or turn to structure etc. utilize the great water droplet volume of diameter, the great characteristics of inertia to intercept, get rid of the water droplet in the air current, improve the homogeneity of moisture in the air current, when adjusting high product cooling rate, guarantee the even cooling of different positions of product.

A plurality of water-removing structures 5 are generally arranged in the mist-homogenizing gas channel 3, the plurality of water-removing structures 5 are distributed at equal intervals in the gas flow direction and the through-flow cross section direction of the mist-homogenizing gas channel 3, and the projection of the plurality of water-removing structures 5 in the gas flow direction covers the through-flow cross section of the whole mist-homogenizing gas channel 3. Gaps among the water drop structures 5 which are distributed at intervals are utilized, so that an air flow channel in the mist homogenizing air channel 3 can be provided, and the resistance of the water drop structures 5 to air flow is reduced; by utilizing the water drop structure 5 which is arranged corresponding to the whole through flow section, water drops in the air flow can be intercepted in all directions, and the uniformity of water distribution in the whole air flow is improved.

In some embodiments of the air quenching apparatus of the present application, as shown in fig. 4 and 5, the water droplet removing structure 5 is an elongated structure formed by the droplet removing panel 51 and the back plate 52 being connected to each other, and a receiving space for receiving the removed water droplets is formed between the droplet removing panel 51 and the back plate 52. The length direction of the water droplet removing structure 5 spans the whole mist homogenizing gas channel 3, and the end parts at two ends are fixed on the side wall of the mist homogenizing gas channel 3, so that the water droplet removing panel 51 faces the air inlet direction of the mist homogenizing gas channel 3 and is obliquely arranged along the length direction. The drip-removing panel 51 is provided with a plurality of water receiving grooves 511 parallel to the longitudinal direction, and the water receiving grooves 511 penetrate the drip-removing panel 51 to communicate an external air flow passage with an internal accommodation space. When the air flow passes through the mist equalizing air channel 3, flowing air and tiny water mist in the air bypass the water droplet structures 5 and flow through gaps among the water droplet structures 5, and the air flows through the mist equalizing air channel 3; the water drops with larger diameters in the air flow turn slowly due to larger inertia, and are generally intercepted by one of the plurality of water drop removing structures 5 covering the whole through-flow section, adhere to the water drop removing panel 51, move in the width direction under the blowing of the air flow, and enter the accommodating space between the water drop removing panel 51 and the back plate 52 through the water receiving groove 511. A drain hole 53 is provided at a lower portion of the sidewall of the mist-equalizing duct 3 corresponding to the accommodation space for discharging water in the accommodation space.

In a preferred embodiment of the air quench cooling device of the present application, as shown in fig. 4, the water droplet removing structure 5 is provided on the windward side of the wall of the mist all-way 3. The drip-removing face plate 51 and the back plate 52 are arranged in parallel along the windward side of the mist air duct 3, the peripheries of the drip-removing face plate 51 and the back plate 52 are connected to each other, and a space for accommodating water droplets is formed in the gap between the drip-removing face plate 51 and the back plate 52. Instead of the back plate 52, the side wall of the mist-equalizing duct 3 may be used to directly fix the periphery of the drip-removing panel 51 to the wall of the mist-equalizing duct 3, thereby forming a space between the drip-removing panel 51 and the side wall of the mist-equalizing duct 3.

In another preferred embodiment of the air quenching cooling device of the application, as shown in fig. 4 and 5, a water droplet removing structure 5 is disposed on a side wall of one side of the mist air duct 3, one sides of the width directions of the droplet removing panel 51 and the back plate 52 are connected with each other, the other sides are connected with the side wall of the mist air duct 3, and both sides of the length directions of the droplet removing panel 51 and the back plate 52 extend to the side surface of the mist air duct 3 and are also connected with the side wall of the mist air duct 3, and a containing space for containing water droplets is formed between the side walls of the droplet removing panel 51, the back plate 52 and the mist air duct 3.

As a specific embodiment of the air quenching apparatus of the present application, as shown in fig. 5, a water droplet removing structure 5 is provided inside the mist uniformity air duct 3 across the mist uniformity air duct 3. The middle portion of the drip panel 51 is bent to form a bending line parallel to the longitudinal direction. Both sides in the width direction of the drip face plate 51 are connected to the back plate 52, and a receiving space having a triangular cross-sectional shape is formed between the drip face plate 51 and the back plate 52. Both sides of the drip removal face plate 51 and the back plate 52 in the length direction are connected with the side walls of the mist equalizing air duct 3, so that the middle parts of the drip removal face plate 51 and the back plate 52 are suspended in the mist equalizing air duct 3.

In some embodiments of the air quench cooler of the present application, as shown in FIG. 6, the cooling windbox 4 is provided with a windbox inlet 41 on one side and an open air outlet on the other. The air outlet end of the mist equalizing air duct 3 is inserted into the air inlet 41 of the air box, and the connection position of the cooling air box 4 at the end part of the mist equalizing air duct 3 can be adjusted by sliding the mist equalizing air duct 3 in the air inlet 41 of the air box, so that the position of the air outlet of the cooling air box 4 is adjusted. A telescopic driving device 6 is arranged between the mist equalizing air duct 3 and the cooling air box 4, and various suitable telescopic driving devices such as an air cylinder, a hydraulic cylinder, a screw driving device or an electric push rod can be used for the telescopic driving device 6.

In some embodiments of the air quench cooling apparatus of the present application, as shown in FIG. 6, a damper 42 is provided at the air outlet of the cooling windbox 4, and a plurality of evenly distributed air outlet holes are provided in the damper 42. The air equalizing plate 42 covers the air outlet of the whole cooling air box 4, so that air entering the cooling air box 4 is uniformly sprayed out through the air outlet on the air equalizing plate 42, and the phenomena that the air flow velocity of the middle part of the air outlet is large and the air flow velocity of the edge part of the air outlet is small when the air flow is sprayed out through a large air outlet are avoided.

One embodiment of the air-quench apparatus of the present application includes a heating chamber, an air-cooling chamber 7, and an air-quench cooling device of any of the embodiments of the present application. The heating chamber is used for heating and preserving heat of the product to be quenched, and the product is usually heated to a set temperature, such as 480 ℃, in the heating chamber and preserved for a set time, such as half an hour, and then is output from the heating chamber. The air cooling chamber 7 is internally provided with an air quenching conveyor belt 8 penetrating through two ends of the air cooling chamber 7, the air quenching conveyor belt 8 can move under the driving of a driving motor, high-temperature products output from the heating chamber are conveyed into the air cooling chamber 7 to cool and quench the products, and the products cooled to be close to normal temperature are conveyed out of the air cooling chamber 7. The product heated in the heating chamber can be transferred to the air quenching conveyor belt 8 through the heating conveyor belt arranged in the heating chamber, and the air quenching conveyor belt 8 can also be arranged to penetrate through the heating chamber and the air cooling chamber 7 at the same time, so that the conveying of the product into and out of the heating chamber and the conveying of the product into and out of the air cooling chamber are completed by the air quenching conveyor belt 8.

A plurality of cooling devices for air quenching are arranged in the air cooling chamber 7, wherein at least one air quenching cooling device of any embodiment of the application is included. The utility model provides an air quenching cooling device can wholly set up in air cooling room 7, also can the part setting in air cooling room 7, wherein at least cooling bellows 4 sets up in air cooling room, the gas outlet of cooling bellows 4 is towards air quenching conveyer belt 8, with can blow the air that mixes with water smoke to the product on the air quenching conveyer belt 8, make the product that gets into in the air cooling room 7 quick, even cooling, prevent that the product cooling rate is too fast or local temperature difference is too big to lead to product deformation or fracture, improve the quenching effect of product, and improve the efficiency of air quenching.

In some embodiments of the air-quench apparatus of the present application, as shown in fig. 1-3, a plurality of the air-quench coolers of the present application, such as four air-quench coolers of the present application, are provided in one air-quench apparatus, and the cooled bellows 4 of the four air-quench coolers are provided on the upper and lower sides of the air-quench conveyor belt 8, respectively, typically, two air-quench coolers are provided above the air-quench conveyor belt 8, and two air-quench coolers are also provided below the air-quench conveyor belt 8. The air outlet of the cooling bellows 4 of the air quenching cooling device faces the air quenching conveyor belt 8 from the upper side and the lower side of the air quenching conveyor belt 8 respectively, so that cooling air with water mist can be blown to products on the air quenching conveyor belt 8, and the products on the air quenching conveyor belt 8 can be cooled rapidly. An exhaust window is arranged at the position of the air quenching conveyor belt 8, which is in and out of the air cooling chamber 7, and the top of the air cooling chamber 7 is opened and communicated with the external space, so that the air circulation inside and outside the air cooling chamber 7 is facilitated.

In a preferred embodiment of the air-quench apparatus of the present application, as shown in fig. 1, 3 and 6, two air-quench coolers are provided above the air-quench conveyor belt 8, which blow cooling air to the air-quench conveyor belt 8 through the same cooling windbox 4. The air cooling fans of the two air quenching cooling devices are fixed on the outer side of the top of the air cooling chamber 7, and the mist equalizing air channel 3 penetrates through the top wall of the air cooling chamber 7 to enter the air cooling chamber 7 and is fixed on the top of the air cooling chamber 7. Two air inlets 41 of the air bellows are arranged at the top of the cooling air bellows 4, and the air outlet ends of the mist homogenizing air passages 3 of the two air quenching cooling devices are respectively inserted into one air inlet 41 of the air bellows. Both mist equalizing air passages 3 can slide relative to the air box air inlet 41, so that the cooling air box 4 can form telescopic movement with the mist equalizing air passages 3 through the sliding of the air box air inlet 41 on the mist equalizing air passages 3, and the distance between the air outlet of the cooling air box 4 and the wind quenching conveyor belt 8 is adjusted. When the distance of the air outlet of the cooling windbox 4 from the wind-quenching conveyor belt 8 increases, the speed of the cooling gas passing through the wind-quenching conveyor belt 8 decreases but the uniformity of the gas passing through is generally improved, whereas when the distance of the air outlet of the cooling windbox 4 from the wind-quenching conveyor belt 8 decreases, the speed of the cooling gas passing through the wind-quenching conveyor belt 8 increases but the cooling gas is generally concentrated in the area of the air outlet of the cooling windbox 4. By adjusting the connection position of the cooling bellows 4 on the mist equalizing duct 3, the cooling speed of the product can be adjusted by adjusting the speed of the cooling air blown out from above the air quenching conveyor 8.

A telescopic driving device 6 is arranged between the cooling bellows 4 and the air cooling chamber 7, driving cylinders are usually used for the telescopic driving device 6, two driving cylinders are arranged on two sides of the cooling bellows 4, and the cooling bellows 4 is driven to lift in the air cooling chamber 7 through synchronous telescopic driving of the two driving cylinders, so that relative telescopic movement between the cooling bellows 4 and the mist equalizing air duct 3 fixed on the air cooling chamber 7 is formed. By means of the sliding connection between one cooling bellows 4 and the mist equalizing air passages 3 of the two air quenching cooling devices, synchronous adjustment of cooling air flows blown out by the two air quenching cooling devices can be formed by driving the lifting of the cooling bellows 4.

In the description of the present invention, reference to the terms "one embodiment," "a particular embodiment," "a preferred embodiment," and the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. An air quenching cooling device is characterized in that: comprises an air cooling fan (1), a spray nozzle (2), a mist homogenizing air passage (3) and a cooling bellows (4); the spray nozzle (2) is arranged at an air outlet of the air cooling fan (1), the mist homogenizing air passage (3) is arranged between the air cooling fan (1) and the cooling air box (4), a plurality of water drop removing structures (5) are arranged in the mist homogenizing air passage (3), and the water drop removing structures (5) correspond to the whole through flow section of the mist homogenizing air passage (3).

2. An air quench cooler in accordance with claim 1 wherein: the water-drip removing structure (5) comprises a water-drip removing panel (51) and a back plate (52), wherein the water-drip removing panel (51) is connected with the back plate (52), the water-drip removing panel (51) is obliquely arranged towards the air inlet direction of the mist-homogenizing air passage (3), and a water receiving groove (511) perpendicular to the air flow direction is arranged on the water-drip removing panel (51).

3. An air quench cooler as claimed in claim 2, wherein: the water droplet removing structure (5) is arranged on the windward side of the mist homogenizing air passage (3), and the water droplet removing panel (51) and the back plate (52) are arranged in parallel and are connected with each other at the periphery.

4. An air quench cooler as claimed in claim 2, wherein: the water droplet removing structure (5) is arranged on one side face of the mist homogenizing air passage (3), one side edge of the water droplet removing panel (51) and one side edge of the back plate (52) are connected with each other, and other side edges are connected with the side wall of the mist homogenizing air passage (3).

5. An air quench cooler as claimed in claim 2, wherein: the utility model discloses a water droplet removing structure, including water droplet removing structure (5), water droplet removing panel (51) and backplate (52), water droplet removing structure (5) set up the inside of samming air flue (3), the middle part of removing droplet panel (51) is bent along length direction, remove both sides of droplet panel (51) width direction all with backplate (52) are connected, remove both sides of droplet panel (51) and backplate (52) length direction all with the lateral wall of samming air flue (3) is connected.

6. An air quench cooler as claimed in any one of claims 1-5, wherein: one side of the cooling bellows (4) is provided with a bellows air inlet (41), the air outlet end of the mist homogenizing air passage (3) is inserted into the bellows air inlet (41) and is in sliding connection with the bellows air inlet (41), and a telescopic driving device (6) is arranged between the mist homogenizing air passage (3) and the cooling bellows (4).

7. An air quench cooler as claimed in any one of claims 1-5, wherein: an air equalizing plate (42) is arranged at the air outlet of the cooling air box (4), and a plurality of air outlet holes which are uniformly distributed are formed in the air equalizing plate (42).

8. An air quenching apparatus comprising a heating chamber and an air cooling chamber (7), characterized in that: the cooling device further comprises at least one air quenching cooling device according to any one of claims 1-7, wherein an air quenching conveyor belt (8) is arranged in the air cooling chamber (7), the cooling bellows (4) is arranged in the air cooling chamber (7), and an air outlet faces the air quenching conveyor belt (8).

9. An air quenching apparatus as claimed in claim 8, wherein: the air quenching cooling devices are provided with a plurality of cooling bellows (4) of the air quenching cooling devices, the cooling bellows are respectively arranged on the upper side and the lower side of the air quenching conveyor belt (8), and the top of the air cooling chamber (7) is communicated with an external space.

10. An air quenching apparatus as claimed in claim 9, wherein: a plurality of air quenching cooling devices are arranged above the air quenching conveyor belt (8), the same cooling bellows (4) is used by the air quenching cooling devices, a plurality of bellows air inlets (41) are formed in the upper side of the cooling bellows (4), the air outlet ends of the mist homogenizing air passages (3) of each air quenching cooling device are respectively inserted into one bellows air inlet (41) and can slide relative to the bellows air inlets (41), the mist homogenizing air passages (3) are fixedly connected with the air cooling chamber (7), and a telescopic driving device (6) is arranged between the cooling bellows (4) and the air cooling chamber (7).