CN215337779U - High-efficient tunnel cave heat recovery unit of disconnect-type production magnesia - Google Patents

Abstract

The utility model discloses a separated high-efficiency tunnel kiln heat recovery device for producing magnesia, which relates to the technical field of heat recovery devices and comprises a bottom plate and a shell, wherein the shell comprises an inner shell layer, a phenolic foam layer and an outer shell layer, the bottom of an inner cavity of the shell is fixedly connected with a ventilation plate, the top of the ventilation plate is provided with aeration micropores, the lower end of the inner cavity of the shell is fixedly connected with a water inlet plate, the right end of the water inlet plate is communicated with a water inlet pipe, and the inner surface of the water inlet pipe is movably connected with a second electromagnetic valve. The utility model solves the problems that the prior heat recovery device has low heat recovery efficiency, cannot effectively filter exhausted gas and pollutes the surrounding environment by the action of a fan, a dust removal filter box, a ventilation plate, aeration micropores, an inner shell layer, a phenolic foam layer, an outer shell layer, a water inlet pipe, a water inlet plate, a flow distribution plate, a heat exchange pipe, a flow collection plate, a water drainage plate and an activated carbon filter screen.

Description

High-efficient tunnel cave heat recovery unit of disconnect-type production magnesia

Technical Field

The utility model relates to the technical field of heat recovery devices, in particular to a separated high-efficiency tunnel kiln heat recovery device for producing magnesia.

Background

Magnesite, also called as sintered magnesite, is made up by high-temp. calcination of magnesite, brucite or magnesium hydroxide made up by reaction of sea water with lime cream, and features strong hydration power, mainly used for making alkaline refractory material, such as magnesite brick and magnesite-alumina brick, and containing more impurities and used for laying steel-making furnace bottom. The tunnel kiln mainly comprises a kiln body, when the kiln is stopped for maintenance, the internal temperature of the kiln after roasting is generally high in hundreds of degrees, a large amount of waste heat is contained, the traditional tunnel kiln can only run off heat due to no waste heat recovery device, and the aim of naturally cooling the kiln body so as to be maintained is fulfilled. But because tunnel cave length is big, bulky characteristics, and the natural cooling time is long, has indirectly reduced production efficiency to, a large amount of waste heat directly runs off, not only causes the wasting of resources, causes secondary pollution easily moreover, consequently, need use heat reclamation device when the high-efficient tunnel cave of disconnect-type production magnesia maintains.

The applicant finds that at least the following technical problems exist in the prior art: the existing heat recovery device is low in heat recovery efficiency, exhausted gas cannot be effectively filtered, and the surrounding environment is polluted.

Disclosure of Invention

The utility model aims to provide a separated high-efficiency tunnel kiln heat recovery device for producing magnesite, which has the advantages of high heat recovery efficiency and effective gas filtration, and solves the problems that the existing heat recovery device has low heat recovery efficiency, cannot effectively filter discharged gas and pollutes the surrounding environment.

In order to achieve the purpose, the utility model provides the following technical scheme: a separated high-efficiency tunnel kiln heat recovery device for producing magnesite, which comprises a bottom plate and a shell, wherein the shell comprises an inner shell layer, a phenolic foam layer and an outer shell layer, the bottom of an inner cavity of the shell is fixedly connected with a ventilating plate, the top of the ventilating plate is provided with aeration micropores, the lower end of the inner cavity of the shell is fixedly connected with a water inlet plate, the right end of the water inlet plate is communicated with a water inlet pipe, the inner surface of the water inlet pipe is movably connected with a second electromagnetic valve, the top of the water inlet plate is communicated with a flow distribution plate, the top of the flow distribution plate is communicated with a heat exchange pipe, the upper end of the heat exchange pipe is communicated with a flow collection plate, the top of the flow collection plate is communicated with a drainage plate, the left end of the drainage plate is communicated with a drainage pipe, the upper end of the inner cavity of the shell is fixedly connected with an active carbon filter screen plate and a liquid passing plate, the bottom of the liquid passing plate is communicated with a spray nozzle, and the right end of the liquid passing plate is communicated with a cleaning water pipe, and the inner surface of the cleaning water pipe is movably connected with a third electromagnetic valve, and the left end of the top of the bottom plate is fixedly provided with a dust removal filter box and a fan.

Preferably, the left end and the right end of the top of the bottom plate are fixedly connected with supporting legs, the top of each supporting leg is fixedly connected with a shell, and the top of each shell is communicated with an exhaust pipe.

Preferably, the outer side of the phenolic foam layer is bonded to the inner side of the outer shell layer, and the outer side of the inner shell layer is bonded to the inner side of the phenolic foam layer.

Preferably, the lower end of the right side of the shell is communicated with a sewage discharge pipe, and the inner surface of the sewage discharge pipe is movably connected with a first electromagnetic valve.

Preferably, the number of the splitter plates is multiple, and the distance between two adjacent splitter plates is equal.

Preferably, the left side of the dust removal filter box is communicated with a connecting flange, and one end of the connecting flange (8) is provided with a mounting through hole.

Preferably, the air inlet end of the fan is communicated with the right side of the dust removal filter box through a pipeline, and the air outlet end of the fan is communicated with the left side of the ventilation plate through a pipeline.

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

1. after the utility model is communicated with an air outlet pipe of a tunnel kiln through a connecting flange and a fastening bolt, when the kiln is stopped, the fan is opened by an external controller, the fan sucks hot air filtered by a dust removal filter box through a pipeline and conveys the hot air into a ventilation plate to be uniformly discharged through aeration micropores, then the discharged hot air can be contacted with a water body in an inner cavity of a shell to the maximum extent, thereby realizing the rapid heat exchange and the further gas filtration, simultaneously, the heat loss is reduced under the matching of an inner shell layer, a phenolic foam layer and an outer shell layer, then, a second electromagnetic valve on the inner surface of a water inlet pipe is opened by the external controller, so that external cold water flows into a water inlet plate, and then the cold water is dispersed by a splitter plate and further dispersed into a heat exchange pipe, thereby rapidly absorbing the heat of the water body in the inner cavity of the shell, and then, hot water in the heat exchange pipe enters the splitter plate, get into and discharge from the drain pipe behind the drain bar to heat recovery's ability has been realized, and exchange gas after filtering after through the active carbon filter screen board, by the blast pipe discharge, and then make this dress reach the purpose that heat recovery efficiency is high and gas effectively filters, through the effect of above structure complex, it is low to have solved current heat recovery device heat recovery efficiency, and can't carry out effectual filtration to the combustion gas, has polluted the problem of all ring edge borders.

2. According to the utility model, after the first electromagnetic valve in the sewage discharge pipe is opened by the external controller, the sewage can be discharged to the water body after heat recovery, and after the third electromagnetic valve in the cleaning water pipe is opened by the external controller, the cleaning water body can enter the liquid passing plate and then is discharged through the spray head, so that the inner cavity of the shell can be cleaned, and the use of people is facilitated.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the connection between the flow collecting plate and the heat exchange tube and the flow dividing plate in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a housing according to an embodiment of the utility model.

In the figure: 1. a base plate; 2. a housing; 201. an inner shell layer; 202. a phenolic foam layer; 203. an outer shell layer; 3. a ventilation board; 4. aerating micropores; 5. supporting legs; 6. a fan; 7. a dust removal filter box; 8. a connecting flange; 9. a collector plate; 10. a drain pipe; 11. a spray head; 12. a liquid passing plate; 13. an exhaust pipe; 14. an active carbon filter screen plate; 15. cleaning the water pipe; 16. a drain plate; 17. a water inlet pipe; 18. a blow-off pipe; 19. a heat exchange pipe; 20. a flow distribution plate; 21. a water inlet plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The bottom plate 1, the shell 2, the inner shell layer 201, the phenolic foam layer 202, the outer shell layer 203, the ventilating plate 3, the aeration micropores 4, the support legs 5, the fan 6, the dust removal filter box 7, the connecting flange 8, the collector plate 9, the drain pipe 10, the spray head 11, the liquid passing plate 12, the exhaust pipe 13, the activated carbon filter screen plate 14, the cleaning water pipe 15, the drain plate 16, the water inlet pipe 17, the sewage discharge pipe 18, the heat exchange pipe 19, the flow distribution plate 20 and the water inlet plate 21 are all universal standard parts or parts known by a person skilled in the art, and the structure and the principle of the utility model can be known by the technical manual or by a conventional experimental method.

Referring to fig. 1-3, a separated high-efficiency tunnel kiln heat recovery device for producing magnesia comprises a bottom plate 1 and a shell 2, wherein the left end and the right end of the top of the bottom plate 1 are fixedly connected with supporting legs 5, the top of the supporting legs 5 is fixedly connected with the shell 2, the top of the shell 2 is communicated with an exhaust pipe 13, the shell 2 comprises an inner shell 201, a phenolic foam layer 202 and an outer shell 203, the outer side of the phenolic foam layer 202 is adhered to the inner side of the outer shell 203, the outer side of the inner shell 201 is adhered to the inner side of the phenolic foam layer 202, the lower end of the right side of the shell 2 is communicated with a drain pipe 18, the inner surface of the drain pipe 18 is movably connected with a first electromagnetic valve, the bottom of the inner cavity of the shell 2 is fixedly connected with a ventilation plate 3, the top of the ventilation plate 3 is provided with aeration micropores 4, the lower end of the inner cavity of the shell 2 is fixedly connected with a water inlet plate 21, and the right end of the water inlet plate 21 is communicated with a water inlet pipe 17, and the inner surface of the water inlet pipe 17 is movably connected with a second electromagnetic valve, the top of the water inlet plate 21 is communicated with a plurality of flow distribution plates 20, the number of the flow distribution plates 20 is multiple, the distance between two adjacent flow distribution plates 20 is equal, the top of the flow distribution plate 20 is communicated with a heat exchange pipe 19, the upper end of the heat exchange pipe 19 is communicated with a flow collection plate 9, the top of the flow collection plate 9 is communicated with a drainage plate 16, the left end of the drainage plate 16 is communicated with a drainage pipe 10, the upper end of the inner cavity of the shell 2 is fixedly connected with an activated carbon filter screen plate 14 and a liquid through plate 12, the bottom of the liquid through plate 12 is communicated with a spray head 11, the right end of the liquid through plate 12 is communicated with a cleaning water pipe 15, the inner surface of the cleaning water pipe 15 is movably connected with a third electromagnetic valve, after the first electromagnetic valve in the drainage pipe 18 is opened through an external controller, the water body after heat recovery can be discharged, and after the third electromagnetic valve in the cleaning water pipe 15 is opened through the external controller, the cleaning water body can enter the liquid passing plate 12 and then is discharged through the spray head 11, so that the inner cavity of the shell 2 can be cleaned, and the use of people is facilitated, the dust removal filter box 7 and the fan 6 are fixedly installed at the left end of the top of the bottom plate 1, the left side of the dust removal filter box 7 is communicated with the connecting flange 8, one end of the connecting flange 8 is provided with an installation through hole, the air inlet end of the fan 6 is communicated with the right side of the dust removal filter box 7 through a pipeline, the air outlet end of the fan 6 is communicated with the left side of the ventilating plate 3 through a pipeline, after being communicated with an air outlet pipe of the tunnel kiln through the connecting flange 8 and a fastening bolt, when the kiln is stopped, the fan 6 is opened through an external controller, hot air filtered by the dust removal filter box 7 is sucked into the fan 6 through the pipeline and is conveyed into the ventilating plate 3 to be uniformly discharged through the aeration micropores 4, and then the discharged hot air can be in contact with the water body in the inner cavity of the shell 2 to the greatest extent, further realizing the rapid heat exchange and the further gas filtration, simultaneously, reducing the heat loss under the coordination of the inner shell 201, the phenolic foam layer 202 and the outer shell 203, then opening the second electromagnetic valve on the inner surface of the water inlet pipe 17 by the external controller, making the external cold water flow into the water inlet plate 21, then further dispersing and flowing into the heat exchange pipe 19 after being dispersed by the flow distribution plate 20, thereby rapidly absorbing the heat of the water body in the inner cavity of the shell 2, then, the hot water in the heat exchange pipe 19 enters the flow distribution plate 9, and then is discharged from the water discharge pipe 10 after entering the water discharge plate 16, thereby realizing the heat recovery capability, and the gas after the exchange filtration passes through the activated carbon filter screen plate 14 and is discharged by the gas discharge pipe 13, further making the device achieve the purposes of high heat recovery efficiency and effective gas filtration (the external controller in the application is a PLC controller, simultaneously, two wiring ends of external controller are connected with power plug through the wire, and adopt the commercial power to supply power in this application).

When in use, after being communicated with an air outlet pipe of a tunnel kiln through a connecting flange 8 and a fastening bolt, when the kiln is stopped, the fan 6 is opened by the external controller, the fan 6 sucks hot air filtered by the dust removal filter box 7 through a pipeline and conveys the hot air into the ventilation plate 3 to be uniformly discharged by the aeration micropores 4, then the discharged hot air can be in contact with a water body in the inner cavity of the shell 2 to the maximum extent, so that the rapid heat exchange and the further gas filtration are realized, meanwhile, the heat loss is reduced under the matching of the inner shell 201, the phenolic foam layer 202 and the outer shell 203, then, the second electromagnetic valve on the inner surface of the water inlet pipe 17 is opened by the external controller, so that external cold water flows into the water inlet plate 21 and is further dispersed by the splitter plate 20 to flow into the heat exchange pipe 19, so that the heat of the water body in the inner cavity of the shell 2 can be rapidly absorbed, and then, the hot water in the heat exchange tube 19 enters the collector plate 9 and is discharged from the drain pipe 10 after entering the drain plate 16, thereby realizing the heat recovery capability, the gas after exchange filtration passes through the active carbon filter screen plate 14 and is discharged by the exhaust pipe 13, thereby leading the device to achieve the purposes of high heat recovery efficiency and effective gas filtration, solving the problems that the prior heat recovery device has low heat recovery efficiency and cannot effectively filter the discharged gas and pollute the surrounding environment through the cooperation of the above structures, the water body after heat recovery can be discharged after the first electromagnetic valve in the discharge pipe 18 is opened by the external controller, and the cleaning water body can enter the liquid through plate 12 and then is discharged through the spray head 11 after the third electromagnetic valve in the cleaning water pipe 15 is opened by the external controller, thereby cleaning the inner cavity of the shell 2, is convenient for people to use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a high-efficient tunnel cave heat reclamation device of disconnect-type production magnesia, includes bottom plate (1) and casing (2), its characterized in that: the shell (2) comprises an inner shell layer (201), a phenolic foam layer (202) and an outer shell layer (203), the bottom of the inner cavity of the shell (2) is fixedly connected with a ventilation plate (3), aeration micropores (4) are formed in the top of the ventilation plate (3), a water inlet plate (21) is fixedly connected with the lower end of the inner cavity of the shell (2), the right end of the water inlet plate (21) is communicated with a water inlet pipe (17), a second electromagnetic valve is movably connected with the inner surface of the water inlet pipe (17), a flow distribution plate (20) is communicated with the top of the water inlet plate (21), a heat exchange pipe (19) is communicated with the top of the flow distribution plate (20), a flow distribution plate (9) is communicated with the upper end of the heat exchange pipe (19), a drainage plate (16) is communicated with the top of the flow distribution plate (9), a drainage pipe (10) is communicated with the left end of the drainage plate (16), an active carbon filter screen plate (14) and a liquid through plate (12) are fixedly connected with the upper end of the inner cavity of the shell (2), the bottom of the liquid passing plate (12) is communicated with a spray head (11), the right end of the liquid passing plate (12) is communicated with a cleaning water pipe (15), the inner surface of the cleaning water pipe (15) is movably connected with a third electromagnetic valve, and a dust removal filter box (7) and a fan (6) are fixedly mounted at the left end of the top of the bottom plate (1).

2. The separated efficient magnesia-producing tunnel kiln heat recovery device according to claim 1, which is characterized in that: the supporting legs are fixedly connected to the left end and the right end of the top of the bottom plate (1) respectively, the top of each supporting leg (5) is fixedly connected with the shell (2), and the top of each shell (2) is communicated with an exhaust pipe (13).

3. The separated efficient magnesia-producing tunnel kiln heat recovery device according to claim 1, which is characterized in that: the outer side of the phenolic foam layer (202) is adhered to the inner side of the outer shell layer (203), and the outer side of the inner shell layer (201) is adhered to the inner side of the phenolic foam layer (202).

4. The separated efficient magnesia-producing tunnel kiln heat recovery device according to claim 1, which is characterized in that: the lower end of the right side of the shell (2) is communicated with a sewage discharge pipe (18), and the inner surface of the sewage discharge pipe (18) is movably connected with a first electromagnetic valve.

5. The separated efficient magnesia-producing tunnel kiln heat recovery device according to claim 1, which is characterized in that: the number of the splitter plates (20) is multiple, and the distance between two adjacent splitter plates (20) is equal.

6. The separated efficient magnesia-producing tunnel kiln heat recovery device according to claim 1, which is characterized in that: the left side of the dust removal filter box (7) is communicated with a connecting flange (8), and one end of the connecting flange (8) is provided with a mounting through hole.

7. The separated efficient magnesia-producing tunnel kiln heat recovery device according to claim 1, which is characterized in that: the air inlet end of the fan (6) is communicated with the right side of the dust removal filter box (7) through a pipeline, and the air outlet end of the fan (6) is communicated with the left side of the ventilation plate (3) through a pipeline.

Images