阅读说明：本技术 一种冷却器 (Cooling device ) 是由 林东杰 甘晓雁 霍耿磊 章刚 马超 刘颖 刘春雷 焦子阳 于 2019-04-28 设计创作，主要内容包括：本申请实施例提供了一种冷却器,包括：壳体,其上端部设有进料口,其下端部设有出料口；流化气分布器,其设在壳体内的下端部,且在流化气分布器分布器的上方形成第一流化床层；至少一个流化气分布板,其设在壳体内,并与壳体的内壁连接,且位于流化气分布器的上方,每个流化气分布板的上方分别形成第二流化床层；换热管,其竖向设置在壳体内,并穿设在流化气分布板上；其中,每个流化气分布板上均竖向穿设有溢流管,溢流管的上端口位于其所设置的流化气分布板所形成的第二流化床层内,溢流管的下端口位于其所设置的流化气分布板的下部。其能够提高对待冷却的物料的冷却效率,减少待冷却的物料溢出及节省动能。(An embodiment of the present application provides a cooler, including: the upper end part of the shell is provided with a feeding hole, and the lower end part of the shell is provided with a discharging hole; the fluidization gas distributor is arranged at the lower end part in the shell, and a first fluidized bed layer is formed above the fluidization gas distributor; at least one fluidization gas distribution plate which is arranged in the shell, is connected with the inner wall of the shell and is positioned above the fluidization gas distributor, and a second fluidization bed layer is respectively formed above each fluidization gas distribution plate; the heat exchange pipe is vertically arranged in the shell and penetrates through the fluidization air distribution plate; an overflow pipe vertically penetrates through each fluidizing gas distribution plate, the upper port of the overflow pipe is positioned in a second fluidized bed formed by the fluidizing gas distribution plates arranged on the overflow pipe, and the lower port of the overflow pipe is positioned at the lower part of the fluidizing gas distribution plate arranged on the overflow pipe. The cooling efficiency of the material to be cooled can be improved, the overflow of the material to be cooled is reduced, and the kinetic energy is saved.)

1. A cooler, comprising:

the upper end part of the shell is provided with a feeding hole, and the lower end part of the shell is provided with a discharging hole;

the fluidization gas distributor is arranged at the lower end part in the shell, and a first fluidized bed layer is formed above the fluidization gas distributor;

the fluidization gas distribution plate is arranged in the shell, is connected with the inner wall of the shell and is positioned above the fluidization gas distributor, and a second fluidization bed layer is formed above each fluidization gas distribution plate;

the heat exchange tube is vertically arranged in the shell and penetrates through the fluidized gas distribution plate;

an overflow pipe vertically penetrates through each fluidizing gas distribution plate, an upper port of the overflow pipe is positioned in a second fluidized bed formed by the fluidizing gas distribution plates arranged on the overflow pipe, a lower port of the overflow pipe is positioned at the lower part of the fluidizing gas distribution plates arranged on the overflow pipe, and materials to be cooled enter the overflow pipe from the upper port and overflow from the lower port.

2. The cooler of claim 1, further comprising:

the upper end enclosure is arranged at the upper end part in the shell and is provided with a closed first accommodating cavity, the upper end of the heat exchange tube is communicated with the first accommodating cavity, and the upper end enclosure is also provided with a first air outlet tube which is communicated with the first accommodating cavity and extends out of the shell;

The lower head, it is established lower tip in the casing, and be located the top of fluidization gas distribution board, the lower head is formed with inclosed second and holds the chamber, the lower extreme of heat exchange tube with the second holds the chamber intercommunication, still be equipped with on the lower head with the second holds the chamber intercommunication and stretches out the first feed liquor pipe of casing.

3. The cooler of claim 2, further comprising:

and the gas-liquid separation tank is provided with a pipeline communicated with the first gas outlet pipe, the upper end part of the gas-liquid separation tank is provided with a gas outlet, and the lower end part of the gas-liquid separation tank is provided with a liquid outlet.

4. The cooler according to claim 3, wherein the liquid outlet is communicated with the first liquid inlet pipe so that the liquid heat exchange medium separated from the gas-liquid separation tank enters the second accommodating chamber through the first liquid inlet pipe.

5. The cooler of claim 1, further comprising:

and the fluidizing gas inlet pipe is arranged on the shell, extends into the shell and is positioned below the fluidizing gas distributor, and the gas supply port of the fluidizing gas inlet pipe is arranged towards the bottom of the shell.

6. The cooler according to claim 1, wherein when the heat exchange tube is plural, a plurality of the heat exchange tubes are arranged in a column shape, a plurality of overflow tubes are arranged on each of the fluidized gas distribution plates in a penetrating manner, and the plurality of overflow tubes are arranged around at least part of the column shape formed by the heat exchange tubes.

7. A cooler according to claim 1, wherein each overflow pipe extends into the second fluidised bed formed by the fluidising gas distribution plate in which it is located in a length dimension which is no less than one third of the height of the second fluidised bed.

8. The cooler according to claim 1, wherein the fluidized gas distribution plate is provided in plurality, and the overflow pipes of two adjacent fluidized gas distribution plates are arranged in a staggered manner.

9. The cooler of claim 1, wherein each of said fluidizing gas distributing plates is adjustably mounted over said heat exchange tubes to adjust the height of the second fluidized bed formed thereby.

10. The cooler of claim 1, wherein a caliber dimension of the lower port of each overflow tube is smaller than a caliber dimension of the upper port of the overflow tube.

Technical Field

The embodiment of the application relates to the technical field of dust separation, in particular to a cooler.

Background

The cooling technology of the ultrafine powder is to cool the fluidized ultrafine powder from high temperature to normal temperature in an indirect cooling mode, and simultaneously recover the waste heat of the powder, thereby facilitating the storage and transportation of the cooled powder.

At present, the cooling technology of ultrafine powder represented by coke breeze used in industry mainly includes fluidized bed cooling, low moisture cooling and other methods, wherein inert gas such as nitrogen is directly contacted with powder in the fluidized bed during the fluidized bed cooling, thereby achieving the purpose of cooling. The method has the advantages of simple equipment, small investment and the like, but when the method is used for cooling the superfine powder, particularly the superfine powder such as coke breeze and the like, the temperature is reduced from 500-800 ℃ to about 100 ℃, the cooling amplitude is large, and the heat required to be cooled is also large, so that the flow of the cooled inert gas is increased, and the sedimentation speed of the powder is greatly exceeded, finally, a large amount of powder is discharged out of a cooler along with the inert gas, the separation difficulty at the rear end is increased, and the air is polluted; the principle of low-moisture cooling is to absorb the waste heat of the ultrafine powder by using the gasification process of evaporating water into steam, thereby greatly reducing the gas amount and reducing fly ash.

Disclosure of Invention

The embodiment of the application provides a cooler capable of sequentially cooling materials to be cooled for multiple times.

The embodiment of the application provides a cooler, includes:

the upper end part of the shell is provided with a feeding hole, and the lower end part of the shell is provided with a discharging hole;

the fluidization gas distributor is arranged at the lower end part in the shell, and a first fluidized bed layer is formed above the fluidization gas distributor;

the fluidization gas distribution plate is arranged in the shell, is connected with the inner wall of the shell and is positioned above the fluidization gas distributor, and a second fluidization bed layer is formed above each fluidization gas distribution plate;

the heat exchange tube is vertically arranged in the shell and penetrates through the fluidized gas distribution plate;

an overflow pipe vertically penetrates through each fluidizing gas distribution plate, an upper port of the overflow pipe is positioned in a second fluidized bed formed by the fluidizing gas distribution plates arranged on the overflow pipe, a lower port of the overflow pipe is positioned at the lower part of the fluidizing gas distribution plates arranged on the overflow pipe, and materials to be cooled enter the overflow pipe from the upper port and overflow from the lower port.

In some embodiments of the present application, the cooler further comprises:

The upper end enclosure is arranged at the upper end part in the shell and is provided with a closed first accommodating cavity, the upper end of the heat exchange tube is communicated with the first accommodating cavity, and the upper end enclosure is also provided with a first air outlet tube which is communicated with the first accommodating cavity and extends out of the shell;

the lower head, it is established lower tip in the casing, and be located the top of fluidization gas distribution board, the lower head is formed with inclosed second and holds the chamber, the lower extreme of heat exchange tube with the second holds the chamber intercommunication, still be equipped with on the lower head with the second holds the chamber intercommunication and stretches out the first feed liquor pipe of casing.

In some embodiments of the present application, the cooler further comprises:

and the gas-liquid separation tank is provided with a pipeline communicated with the first gas outlet pipe, the upper end part of the gas-liquid separation tank is provided with a gas outlet, and the lower end part of the gas-liquid separation tank is provided with a liquid outlet.

In some embodiments of the present application, the liquid outlet is communicated with the first liquid inlet pipe, so that the liquid heat exchange medium separated by the gas-liquid separation tank enters the second accommodating chamber through the first liquid inlet pipe.

In some embodiments of the present application, the cooler further comprises:

And the fluidizing gas inlet pipe is arranged on the shell, extends into the shell and is positioned below the fluidizing gas distributor, and the gas supply port of the fluidizing gas inlet pipe is arranged towards the bottom of the shell.

In some embodiments of the present application, when the heat exchange tube is multiple, the multiple heat exchange tubes are enclosed to form a column, each of the fluidized gas distribution plates is provided with a plurality of overflow tubes, and the plurality of overflow tubes are all arranged around at least part of the column formed by the heat exchange tubes.

In some embodiments of the present application, each overflow pipe extends into the second fluidized bed formed by the fluidizing gas distribution plate provided thereto in a length dimension of not less than one third of the height of the second fluidized bed.

In some embodiments of the present application, the fluidization gas distribution plate is a plurality of fluidization gas distribution plates, and the overflow pipes on two adjacent fluidization gas distribution plates are arranged in a staggered manner.

In some embodiments of the present application, each of the fluidization gas distribution plates is adjustably sleeved on the heat exchange tube to adjust the height of the second fluidized bed formed by the fluidization gas distribution plate.

In some embodiments of the present application, the bore size of the lower port of each overflow tube is smaller than the bore size of the upper port of the overflow tube.

Based on the disclosure of the above embodiments, it can be known that the embodiments of the present application have the following beneficial effects: the gradual cooling of the material to be cooled through a plurality of fluidized beds is realized by arranging a first fluidized bed layer and at least one second fluidized bed layer, on the premise of ensuring the stable fluidization of the fluidized bed layer, the height of the bed layer is adjusted, the cooling treatment capacity is increased, and the vertical heat exchange tubes are arranged simultaneously so as to utilize the heat exchange medium in the heat exchange tubes to cool the materials to be cooled simultaneously, the material to be cooled can be fully heat-exchanged and cooled, the material to be cooled is prevented from overflowing along with the inert gas in the fluidized bed layer, in addition, the heat exchange medium in the vertically arranged heat exchange pipe can form density difference after absorbing heat to carry out self circulation, the kinetic energy consumption required by circulation is reduced, and further, the cooling efficiency of the material to be cooled is improved, and meanwhile, the overflow of the material to be cooled and the loss of kinetic energy are reduced.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

Fig. 1 is a schematic view of the overall structure of a cooler according to an embodiment of the present application;

fig. 2 is a partial structural schematic diagram of a cooler according to an embodiment of the present application.

Like a logo

1. A housing; 11. a feed inlet; 12. a discharge port;

2. a fluidization gas distributor; 21. a first fluidized bed layer;

3. a fluidization gas distribution plate; 31. a second fluidized bed layer;

4. a heat exchange pipe; 5. an overflow pipe; 6. an upper end enclosure; 7. a lower end enclosure;

8. a gas-liquid separation tank; 81. a liquid outlet; 9. and a fluidizing gas inlet pipe.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the related invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and, together with a general description of the disclosure given above, and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.

These and other characteristics of the present application will become apparent from the following description of preferred forms of embodiment, given as non-limiting examples, with reference to the attached drawings.

It should also be understood that, although the present application has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of application, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.

The above and other aspects, features and advantages of the present disclosure will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

Specific embodiments of the present disclosure are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely examples of the disclosure that may be embodied in various forms. Well-known and/or repeated functions and structures have not been described in detail so as not to obscure the present disclosure with unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present disclosure in virtually any appropriately detailed structure.

The specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the disclosure.

The cooler provided by the embodiment of the application is shown in fig. 1 and fig. 2, and comprises a shell 1, a fluidized gas distributor 2, a heat exchange tube 4 and at least one fluidized gas distribution plate 3, wherein a feed port 11 is formed in the upper end of the shell 1 and used for feeding a material to be cooled into the shell 1 through the feed port 11, and a discharge port 12 is formed in the lower end of the shell 1 and used for sending the cooled material out through the discharge port 12; the fluidization gas distributor 2 is arranged at the lower end part in the shell 1, a first fluidization gas bed layer 21 is formed above the fluidization gas distributor 2, and the fluidization gas distributor 2 adopts a special structure, so that the fluidization of solids can be met, and meanwhile, the solids cannot be prevented from falling below the fluidization gas distributor 2 and further discharged through the discharge hole 12; the at least one fluidization gas distribution plate 3 is arranged in the housing 1, connected to the inner wall of the housing 1, and located above the fluidization gas distributor 2, and a second fluidization gas bed layer 31 is formed above each fluidization gas distribution plate 3, where the first fluidization gas bed layer 21 is specifically a region between the fluidization gas distributor 2 and the second fluidization gas bed layer 31 adjacent to the first fluidization gas bed layer 21; the heat exchange tube 4 is vertically arranged in the shell 1 and penetrates through the fluidized gas distribution plate 3, and a heat exchange medium for cooling a material to be cooled is arranged in the heat exchange tube 4 and can be cooling water; in addition, the vertically arranged heat exchange tube 4 can enable a gas-liquid mixed flow to be formed in the heat exchange tube 4, the gasification rate can be set to be not more than 0.3, so that uniform gas-liquid distribution can be formed, the heat exchange coefficient is increased, the whole heat exchange medium can be automatically circulated in the heat exchange tube 4 under the action of density difference, and further the kinetic energy consumption required by circulation is reduced.

When the material to be cooled is actually cooled, the material to be cooled enters the housing 1 through the feed inlet 11 at the upper end part of the housing 1 and then is cooled in the second fluidized gas bed 31 formed by the fluidized gas distribution plate 3, specifically, the material to be cooled simultaneously exchanges heat with the gas in the second fluidized gas bed 31 and the heat exchange tubes 4 (actually cooled by the heat exchange medium in the heat exchange tubes 4), if the number of the second fluidized gas beds 31 is multiple, the material to be cooled enters the next second fluidized gas bed 31 below the second fluidized gas bed 31 where the material to be cooled currently is located through the overflow tube 5 and is further cooled, and after sequentially passing through the multiple second fluidized gas beds 31, the material to be cooled enters the first fluidized gas bed 21 formed by the fluidized gas distributor 2 and is discharged through the discharge outlet 12 at the lower end part of the housing 1 after cooling in the first fluidized gas bed 21 is completed, through the mode that sets up a plurality of fluidized bed layers, its can be very big reduce the consumption to inert gas in the fluidized bed layer, improve inert gas's availability factor, improve the handling capacity of cooler, avoid unstable phenomena such as fluidized bed channeling, blind spot, bias flow that too high fluidized bed layer caused (compare in the mode that adopts single material of treating the cooling through the fluidized bed layer to cool off among the prior art). In this embodiment, the housing 1 includes a wear-resistant layer, a heat-insulating layer and a pressure-resistant layer, which are sequentially disposed from inside to outside, wherein the wear-resistant layer and the heat-insulating layer are both made of refractory materials, and the pressure-resistant layer is mainly made of metal materials; the fluidization gas distributor 2 is used for forming a first fluidization bed layer 21 above the fluidization gas distributor, so that the redistribution of gas and materials to be cooled is carried out, the first fluidization bed layer 21 is a bubbling fluidization bed layer, so that channeling dead zones are avoided, the heat exchange coefficient of the fluidization bed layer is improved, at least one fluidization gas distribution plate 3 can be used for supporting second fluidization bed layers 31 formed by the fluidization gas distributor respectively, so that the redistribution of the gas and the materials to be cooled is carried out, each second fluidization bed layer 31 can be a bubbling fluidization bed layer, the channeling dead zones are avoided, and the heat exchange coefficient of the fluidization bed layer is improved. The formation of the gas distribution in the first fluidized gas bed 21 may be realized by a porous plate, a floating valve plate, a tube cap plate, etc., and likewise, the formation of the gas distribution in the second fluidized gas bed 31 may also be realized by a porous plate, a floating valve plate, a tube cap plate, etc.

In some embodiments of the present application, referring to fig. 1 and fig. 2 in particular, the cooler further includes an upper end enclosure 6 and a lower end enclosure 7, the upper end enclosure 6 is disposed at an upper end portion in the housing 1, the upper end enclosure 6 is formed with a first closed accommodating cavity, an upper end of the heat exchange tube 4 is communicated with the first accommodating cavity, and the upper end enclosure 6 is further provided with a first air outlet tube which is communicated with the first accommodating cavity and extends out of the housing 1; the low head 7 is established lower tip in the casing 1, and is located fluidized gas distribution plate 3's top, low head 7 is formed with inclosed second and holds the chamber, the lower extreme of heat exchange tube 4 with the second holds the chamber intercommunication, still be equipped with on the low head 7 with the second holds the chamber intercommunication and stretches out the first feed liquor pipe of casing 1, and then treats the refrigerated material and carry out the refrigerated in-process, carry heat transfer medium in to heat exchange tube 4 through low head 7, after heat transfer medium is cooling water and carries out the heat exchange with treating refrigerated material, absorbed thermal cooling water can become vapor and enter into upper cover 6 back and be discharged by first outlet duct.

In some embodiments of the present application, and with particular reference to fig. 1, the cooler further comprises: a gas-liquid separation tank 8, on which a pipeline communicated with the first gas outlet pipe is arranged, an exhaust port is arranged at the upper end of the gas-liquid separation tank 8, and a liquid outlet 81 is arranged at the lower end of the gas-liquid separation tank 8, so that when the heat-exchanged heat exchange medium (such as the vapor formed after the cooling water absorbs heat) in the first accommodating cavity is discharged through the first gas outlet pipe, the vapor is conveyed into the gas-liquid separation tank 8 through the first gas outlet pipe, and in the gas-liquid separation tank 8, part of the conveyed vapor is discharged through the exhaust port at the upper end of the gas-liquid separation tank 8, and the other part of the conveyed vapor is liquefied into water which falls to the bottom of the gas-liquid separation tank 8 and is discharged through the liquid outlet 81. Most preferably, a cooling device may be further installed at the gas-liquid separation tank 8 to absorb heat of the heat exchange medium exhausted through the first gas outlet pipe, so as to improve the energy recovery rate of the heat exchange medium, and further improve the utilization rate by recycling the heat absorbed from the heat exchange medium after heat exchange, such as heating.

Further, in some embodiments of the present application, referring to fig. 1 in particular, the liquid outlet 81 is communicated with the first liquid inlet pipe, so that the liquid heat exchange medium separated from the gas-liquid separation tank 8 enters the second accommodating cavity through the first liquid inlet pipe, so as to recycle the heat exchange medium, and reduce consumption of the heat exchange medium (such as cooling water).

In some embodiments of the present application, and with particular reference to fig. 1, the cooler further comprises: a fluidizing gas inlet pipe arranged on the housing 1 and extending into the housing 1 and located below the fluidizing gas distributor 2, wherein a gas supply port of the fluidizing gas inlet pipe is arranged toward the bottom of the housing 1 so as to blow out the blown gas toward the lower part of the housing 1, and further, a gas distributor may be provided at the gas supply port of the fluidizing gas inlet pipe 9 so as to realize uniform distribution of the gas without blocking the cooled material from falling when the gas is blown out from the gas supply port, and a fluidizing gas outlet pipe is further provided at the upper end of the housing 1 so as to discharge the fluidized gas after heat exchange.

In some embodiments of the present application, referring specifically to fig. 2, when the heat exchange tube 4 is plural, the plural heat exchange tubes 4 are enclosed to be arranged in a column shape, each of the fluidized gas distribution plates 3 is penetrated with a plurality of overflow tubes 5, and the plurality of overflow tubes 5 are arranged around at least a part of the column shape formed by the heat exchange tubes 4, specifically, the column shape formed by the heat exchange tubes 4 can be seen as a circumferential surface of 360 degrees, and the plurality of overflow tubes 5 arranged on the fluidized gas distribution plate 3 can be in a sector of, for example, 60 degrees (the sector is a part of the circumferential surface of 360 degrees of the column shape formed by the heat exchange tubes 4).

In some embodiments of the present application, referring specifically to fig. 2, the fluidization gas distribution plate 3 is plural, and the overflow pipes 5 on two adjacent fluidization gas distribution plates 3 are arranged in a staggered manner, for the convenience of understanding, the above-mentioned embodiment is also taken as an explanation, for example, in two adjacent fluidization gas distribution plates 3, the overflow pipes 5 on one fluidization gas distribution plate 3 can be in a sector of, for example, 60 degrees (the sector is a part of the circumferential surface of 360 degrees of the column formed by the heat exchange tubes 4), and the overflow pipes 5 on the other fluidization gas distribution plate 3 should be arranged in the sectors of the circumferential surface of 360 degrees of the column formed by the heat exchange tubes 4 except for the sector of 60 degrees.

In some embodiments of the present application, the length dimension of each overflow tube 5 extending into the second fluidized gas bed 31 formed by the fluidized gas distribution plate 3 on which it is arranged is not less than one third of the height of the second fluidized gas bed 31, which ensures sufficient contact between the material to be cooled and the gas in the fluidized bed and the heat exchange tubes 4.

In some embodiments of the present application, every the cover that the fluidization gas distribution plate 3 is all adjustable establishes on heat exchange tube 4 to adjust the height of its second fluidization gas bed 31 that forms, guarantee the stability of fluidization, reduce the channelling dead zone, improve cooling efficiency, at this moment, through injecing every overflow pipe 5 stretches into the length dimension that is not less than in the second fluidization gas bed 31 that the fluidization gas distribution plate 3 that it set up formed, the third of second fluidization gas bed 31's height is used for setting up when the downward landing takes place for fluidization gas distribution plate 3 of the top of overflow pipe 5, supports the fluidization gas distribution plate 3 of landing through this overflow pipe 5, with the second fluidization gas bed 31 that prevents the landing with set up the fluidization gas distribution plate 3 laminating of overflow pipe 5 guarantees the fluidization stability, reduces the channelling dead zone, improves cooling efficiency, and the power consumption is reduced.

In some embodiments of the present application, each the bore size of the lower port of the overflow pipe 5 is smaller than the bore size of the upper port of the overflow pipe 5, and then the material to be cooled after heat exchange can more conveniently fall into the overflow pipe 5, that is, an overflow channel can be provided for the material to be cooled, so that the material to be cooled can fall from the upper fluidized bed layer to the lower fluidized bed layer, thereby reaching the connected multiple bubbling fluidized beds, and further, the material to be cooled falling from the upper fluidized bed layer can be prevented from being blown back to the upper fluidized bed layer by reducing the bore size of the lower port.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention herein disclosed is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the spirit of the invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.