CN213747865U - Shuttle kiln with waste heat utilization function - Google Patents

Abstract

The application relates to a shuttle kiln with waste heat utilization function, it includes: the furnace body comprises a heat exchange box fixedly arranged on the furnace body, an air inlet pipe and a pressurizing piece, wherein the air inlet pipe and the pressurizing piece are fixedly arranged on the furnace body; one end of the air inlet pipe is communicated with the air inlet, and the other end of the air inlet pipe extends into the heat exchange box, penetrates out of the heat exchange box and is communicated with the outside; the pressurizing piece is arranged on the air inlet pipe and used for guiding outside air into the air inlet pipe. This application has the effect that can utilize the waste heat of the exhaust flue gas of shuttle kiln.

Description

Shuttle kiln with waste heat utilization function

Technical Field

The application relates to the field of shuttle kilns, in particular to a shuttle kiln with a waste heat utilization function.

Background

The shuttle kiln is a kiln fired intermittently, which is similar to the structure of a matchbox, a kiln car is pushed into the kiln to be fired, the kiln car is pulled out in the opposite direction after being fired, and the fired ceramic is unloaded, and the kiln car is like a shuttle, so the shuttle kiln is called as the shuttle kiln, and the shuttle kiln belongs to an intermittent kiln, so the shuttle kiln can meet continuous large-scale production and can be used for small-scale intermittent production, the production mode and the time arrangement are very flexible, and a plurality of ceramic and refractory material manufacturers adopt more thermal equipment in recent years.

The shuttle kiln in the related art comprises a kiln body and a kiln car, particularly, the kiln body is respectively provided with an air inlet hole and an air outlet hole, the air inlet hole is used for leading outside air into the kiln body, thereby leading the furnace body to be capable of containing a proper amount of oxygen, the air outlet hole is arranged on the top of the furnace body and is used for discharging the flue gas generated by the furnace body out of the furnace, in addition, a chamber used for containing the burnt porcelain is also formed on the furnace body, the vertical inner wall at one side of the chamber is communicated with the outside of the furnace body, and defining this opening as the entrance to the chamber in which the kiln car is slidingly disposed, when the ceramic is to be fired, the kiln car can be pulled out of the furnace body from the cavity, the earth embryo is placed on the kiln car, then the kiln car is pushed into the cavity, the inlet of the cavity is covered, and then, the ceramic can be fired, after the firing is finished, the kiln car can be pulled out of the chamber, and the fired ceramic can be taken away.

In view of the above-mentioned related technologies, the inventor thinks that there is a defect that the shuttle kiln directly discharges the flue gas out of the kiln, and the flue gas temperature of the shuttle kiln is high, thereby causing resource waste.

SUMMERY OF THE UTILITY MODEL

In order to be able to more effectively utilize the flue gas that the shuttle kiln discharged, the application provides a shuttle kiln with waste heat utilization function.

The application provides a shuttle kiln with waste heat utilization function adopts following technical scheme:

a shuttle kiln with waste heat utilization function comprises: the furnace body comprises a heat exchange box fixedly arranged on the furnace body, an air inlet pipe and a pressurizing piece, wherein the air inlet pipe and the pressurizing piece are fixedly arranged on the furnace body; one end of the air inlet pipe is communicated with the air inlet, and the other end of the air inlet pipe extends into the heat exchange box, penetrates out of the heat exchange box and is communicated with the outside; the pressurizing piece is arranged on the air inlet pipe and used for guiding outside air into the air inlet pipe.

By adopting the technical scheme, when the kiln is used for firing ceramics, smoke in the kiln can flow into the heat exchange box from the air outlet, and when the ceramic is fired, the pressurizing part can guide outside air into the air inlet pipe, when the air flows into the heat exchange box along with the air inlet pipe, the air in the air inlet pipe can exchange heat with the smoke in the heat exchange box, so that the temperature of the air in the air inlet pipe is increased, then the air in the air inlet pipe can be finally guided into the furnace body from the air inlet hole, so that proper oxygen can be contained in the furnace body, compared with a mode of directly exhausting the smoke, the design mode heats the air guided into the furnace body through the smoke, on one hand, the heat in the smoke is recycled, the resource saving is facilitated, on the other hand, the temperature difference between the air guided into the furnace body and the furnace body is not easy to be too large, so that the temperature of the furnace body is not easy to be too low, thereby not influencing the firing quality easily.

Preferably, the air inlet pipe comprises a guide part positioned outside the heat exchange box and a heat transfer part positioned in the heat exchange box, and the communication position of the guide part and the heat exchange box is positioned at the end part of one end of the heat exchange box; the heat transfer part is arranged in a U-shaped bending mode, two ends of the opening of the heat transfer part are communicated with the guide part respectively, and the bending bottom of the heat transfer part is located at the end part, far away from the end part, of the heat exchange box, communicated with the guide part.

Through adopting above-mentioned technical scheme, the volume of heat transfer case can more fully be utilized to the intake pipe on the one hand to help the resources in saving space, and still make the air in the intake pipe can have longer heat exchange time, and on the other hand the surface area that the intake pipe is located the heat transfer case can be bigger, thereby makes the heat transfer faster, and then helps promoting the heat exchange rate between flue gas and the air.

Preferably, the smoke outlet is located at one end, far away from the end where the heat exchange box is communicated with the air outlet, of the heat exchange box.

Through adopting above-mentioned technical scheme, because of the position that sets up of cigarette outlet, the flue gas can be full of whole heat transfer case better, then when the air when the intake pipe flows into the heat transfer incasement, the air can carry out the heat exchange with the flue gas more fully to make the air can be heated better, and then make the difference in temperature between air and the furnace body in the leading-in furnace body can be littleer, help promoting and fire the quality.

Preferably, a plurality of guide plates are uniformly arranged on the inner wall of the heat exchange box, and the flue gas is bent and flows in the heat exchange box.

Through adopting above-mentioned technical scheme, the guide plate can guide the flow direction of flue gas in the heat transfer incasement, prolongs the residence time of flue gas in the box, makes the flue gas can fully heat the air in the intake pipe to make the air heating even, help improving heat exchange rate.

Preferably, the guide plate inclines towards one side of the heat exchange box close to the smoke outlet.

Through adopting above-mentioned technical scheme, because of the shuttle kiln discharges fume at the top, the resistance of discharging fume is less, so need not use the fan to discharge fume usually, and the slope setting of guide plate for the flue gas is difficult for receiving blockking of guide plate, thereby makes the flue gas can discharge from smoke outlet department behind the heat transfer case smoothly, and then is difficult for influencing the normal of shuttle kiln to discharge fume.

Preferably, two partition plates are fixed in the heat exchange box, the peripheral side surfaces of the partition plates are completely abutted with the inner wall of the heat exchange box, one partition plate is positioned at one end of the heat exchange box close to the guide part, the other partition plate is positioned at one end of the heat exchange box close to the bent bottom of the heat transfer part, a region between the two partition plates is defined as a heat flow cavity, and a region where the two partition plates are far away from each other is defined as a cold flow cavity; the heat flow cavity is used for containing smoke, the communication part of the heat exchange box and the air outlet and the smoke outlet are positioned in the heat flow cavity, and the heat transfer part passes through the heat flow cavity; the bent bottom of the heat transfer part is positioned in the cold flow cavity, the bent bottom of the heat transfer part is disconnected, and two ends of the disconnected position of the bent bottom of the heat transfer part are positioned in the cold flow cavity far away from the guide part; the communication part of the heat transfer part and the guide part is also positioned in the cold flow cavity.

Through adopting above-mentioned technical scheme, because of the setting of baffle, make in the flue gas is difficult for flowing into the intake pipe from the intercommunication department between heat transfer portion and the guide, thereby the intake pipe is difficult to be blockked up by the smoke and dust in the flue gas, the setting of heat transfer portion disconnection department in addition, make the air can flow into the cold flow chamber earlier in heat transfer portion's disconnection department, flow into another heat transfer portion from the cold flow intracavity again, this kind of design, on the one hand, the area of contact of air and flue gas can be bigger when the cold flow intracavity, thereby the flue gas can be more abundant to the air heating, and on the other hand, the air passes through the cold flow chamber and flows back the heat transfer portion earlier, make the residence time of air in the heat transfer case lengthen, thereby make the temperature of air can rise more, and then the waste heat of flue gas has been utilized more effectively.

Preferably, a heat insulation layer is fixed on the outer wall of the heat exchange box.

Through adopting above-mentioned technical scheme, have one because of thermal transmission mode for heat-conduction, so set up the insulating layer, can make the flue gas when the air heating to the admission pipe, the heat of flue gas is difficult for going out to the outer diffusion of heat transfer case to make the flue gas can be to the air intensive heating, help improving heat exchange rate.

Preferably, a filter screen is fixedly arranged at the communication position of the heat exchange box and the air outlet hole, and the filter screen is used for filtering smoke dust in the smoke.

Through adopting above-mentioned technical scheme, can have some smoke and dust because of the kiln exhaust flue gas, so the setting of filter screen can make the smoke and dust in the flue gas be difficult for blockking up the intercommunication department between venthole and the heat transfer case to make the flue gas can smoothly flow into the heat transfer incasement and carry out the heat exchange with the air in the inlet tube, and then make the waste heat energy of flue gas better by reuse.

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

1. through the arrangement of the heat exchange part, the air inlet pipe and the pressurizing part, on one hand, heat in the flue gas is recycled, which is beneficial to saving resources, and on the other hand, the temperature difference between the air led into the furnace body and the furnace body is not easy to be too large, so that the temperature of the furnace body is not easy to be too low, and the firing quality is not easy to be influenced;

2. the arrangement of the guide plate prolongs the residence time of the flue gas in the box body, so that the flue gas can fully heat the air in the air inlet pipe, the air is uniformly heated, and the heat exchange rate is improved;

3. through the setting of insulating layer for the flue gas is when the air heating to the intake pipe, and the heat is difficult for going out to the outer diffusion of heat transfer case, thereby makes the flue gas can be to the air intensive heating, helps improving heat exchange rate.

Drawings

Fig. 1 is a perspective view of a shuttle kiln having a waste heat utilization function in an embodiment of the present application.

Fig. 2 is a sectional view showing the internal structure of the heat exchange box.

Fig. 3 is an enlarged view at a in fig. 2.

FIG. 4 is a sectional view showing the internal structure of the smoke guide tube near the furnace body.

Description of reference numerals: 1. a furnace body; 11. an air inlet; 12. an air outlet; 13. a chamber; 2. kiln car; 3. a heat exchange box; 31. cold flow into the hole; 32. a cold flow outlet; 33. a smoke inlet hole; 34. a smoke outlet; 35. a baffle; 36. a partition plate; 4. an air inlet pipe; 41. a guide section; 411. a pressing member; 42. a heat transfer portion; 6. a hot flow chamber; 7. a cold flow chamber; 71. a first cold flow chamber; 711. a horizontal baffle; 72. a second cold flow chamber; 8. a thermal insulation layer; 9. a smoke guide pipe; 91. filtering with a screen; 10. a smoke exhaust pipe; 101. support the feet.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a shuttle kiln with a waste heat utilization function. Referring to fig. 1, the shuttle kiln comprises a furnace body 1 and a kiln car 2, wherein the furnace body 1 is usually placed on the ground of a production workshop, and the furnace body 1 is respectively provided with an air inlet 11 and an air outlet 12, the cross sections of which are circular, wherein the air inlet 11 is positioned on the vertical outer wall at one side of the furnace body 1, and the air inlet 11 is used for introducing outside air into the furnace body 1, so that a proper amount of oxygen can be contained in the furnace body 1; the air outlet 12 is positioned at the top of the furnace body 1, and the air outlet 12 is used for discharging flue gas generated in the firing process to the outside of a production workshop, so that the physical health of workers in the workshop is not easily damaged.

Referring to fig. 1, a chamber 13 for accommodating fired porcelain is formed in a furnace body 1, the chamber 13 is in a rectangular parallelepiped shape, and one side vertical inner wall of the chamber 13 is communicated with the outside of the furnace body 1, in the embodiment, an opening of the chamber 13 is defined as an inlet of the chamber 13, and a kiln car 2 is horizontally and slidably arranged in the chamber 13, so that after the porcelain is fired, the kiln car 2 can be pulled out to cool the ceramic product outside the furnace body 1, and in the firing process, the kiln car 2 can be pulled out at any time to observe the firing condition, so the shuttle kiln is called a batch kiln.

Referring to fig. 1, a heat exchange box 3 is arranged above a furnace body 1, the heat exchange box 3 is in a rectangular parallelepiped shape and is made of stainless steel, the heat exchange box 3 is horizontally arranged in the length direction, and in addition, a cold flow inlet hole 31 and a cold flow outlet hole 32, both of which have circular cross sections, are respectively arranged on the circumferential side surface of one end part of the heat exchange box 3, specifically, the cold flow inlet hole 31 is positioned on the upper surface of the heat exchange box 3, the cold flow outlet hole 32 is positioned on the lower surface of the heat exchange box 3, and the cold flow outlet hole 32 is vertically opposite to the cold flow inlet hole 31.

Referring to fig. 1, an air inlet pipe 4 is arranged on a heat exchange box 3, the air inlet pipe 4 is a round pipe made of stainless steel, one end of the air inlet pipe 4 is fixed on the vertical outer wall of the furnace body 1 at one side of an air inlet 11, the other end extends upwards and extends into the heat exchange box 3 from a cold flow outlet 32, and finally extends upwards out of the heat exchange box 3 from the cold flow outlet 32, and the circumferential side surface of the air inlet pipe 4 is also abutted against the inner walls of the cold flow outlet 32 and the cold flow inlet 31, and in addition, a pressurizing piece 411 is arranged at one end of the air inlet pipe 4 close to the furnace body 1, and the pressurizing piece 411 is positioned outside the heat exchange box 3, in this embodiment, the pressure member 411 is an air pump, so that when the furnace body 1 is firing porcelain, the operator can start the pressure member 411, so that the outside air flows into the air inlet pipe 4, and finally the air flows into the furnace body 1 from the air inlet pipe 4, thereby achieving the purpose of ensuring that the furnace body 1 has a proper amount of oxygen.

Referring to fig. 1, a smoke inlet 33 and a smoke outlet 34 with circular cross-sections are further formed on the circumferential side surface of the heat exchange box 3, specifically, the smoke inlet 33 is located on the lower side surface of the heat exchange box 3, and the smoke inlet 33 and the cold flow outlet 32 are adjacently arranged in the length direction of the heat exchange box 3; the smoke outlet 34 is located on the upper side surface of the heat exchange case 3, and the smoke outlet 34 is located at the end of the heat exchange case 3 remote from the cold flow inlet 31.

Referring to fig. 1, a smoke guide pipe 9 is fixed on the heat exchange box 3, the smoke guide pipe 9 is a stainless steel circular pipe, one end of the smoke guide pipe 9 is fixed on the furnace body 1 and is communicated with the air outlet 12, and the other end is fixed on the lower surface of the heat exchange box 3 through a flange and is communicated with the smoke outlet 34; the heat exchange box 3 is also fixed with a smoke exhaust pipe 10, the smoke exhaust pipe 10 is a round pipe made of stainless steel, one end of the smoke exhaust pipe 10 is fixed on the upper surface of the heat exchange box 3 through a flange plate, and the other end of the smoke exhaust pipe extends in the direction far away from the heat exchange box 3 and is communicated with the outside.

Referring to fig. 1, when the kiln is firing ceramic, a worker needs to start the pressurizing member 411 to enable a proper amount of oxygen to be contained in the kiln body 1, and during the firing process, flue gas flows into the smoke guide tube 9 from the air outlet 12 and then flows into the heat exchange box 3 along the smoke guide tube 9, at this time, air in the heat exchange box 3 in the air inlet tube 4 can exchange heat with the flue gas, and the temperature of the air in the air inlet tube 4 rises, so that the temperature difference between the air introduced into the kiln body 1 and the kiln body 1 is not easy to be too large, in this design, the air introduced into the kiln body 1 is heated by the waste heat of the flue gas, on one hand, the heat of the flue gas is utilized, which is beneficial to saving resources, on the other hand, the temperature of the kiln body 1 is not easy to be too low, and is beneficial to maintaining the firing quality of the kiln.

Referring to fig. 1, the edge of heat exchange box 3 lower surface still evenly is provided with four supporting legss 101, and supporting legss 101 is stainless steel's square pole, and supporting legss 101 one end is fixed on heat exchange box 3's lower surface, the vertical downwardly extending of the other end, when the kiln is in the workshop, supporting legss 101 can be placed subaerial at the workshop, then heat exchange box 3 can be on fixing on the basis of furnace body 1 through intake pipe 4 and guide tobacco pipe 9 for heat exchange box 3 can be installed more stably.

Referring to fig. 1 and 2, two partition plates 36 are fixed in the heat exchange box 3, the partition plates 36 are square plates made of stainless steel, the partition plates 36 are vertically arranged, the two partition plates 36 are uniformly arranged along the length direction of the heat exchange box 3, the peripheral side surfaces of the partition plates 36 are completely abutted to the inner wall of the heat exchange box 3, in this embodiment, a region close to each other between the two partition plates 36 is defined as a heat flow chamber 6, and a region far away from each other between the two partition plates 36 is defined as a cold flow chamber 7.

Referring to fig. 1 and 2, smoke inlet 33 and smoke outlet 34 all are located hot flow chamber 6, and be located hot flow chamber 6 length direction's both ends respectively, evenly be provided with polylith guide plate 35 on the relative vertical inner wall in both sides of hot flow chamber 6 in addition, guide plate 35 is stainless steel's square plate, the vertical inner wall of guide plate 35 one end welding at heat transfer case 3, the other end extends to the vertical inner wall of opposite side, and there is the gap between the one end that guide plate 35 is close to each other, and guide plate 35 still is close to smoke outlet 34 one side slope towards hot flow chamber 6, then when the flue gas flows in hot flow chamber 6, the residence time of flue gas in heat transfer case 3 can become, thereby can the air in the fully heating intake pipe 4.

Referring to fig. 1 and 2, the air inlet pipe 4 includes a guide portion 41 located outside the heat exchange box 3 and a heat transfer portion 42 located inside the heat exchange box 3, a communication position of the guide portion 41 and the heat exchange box 3 is located inside the cold flow chamber 7 nearest to the smoke inlet 33, in this embodiment, the cold flow chamber 7 is defined as a first cold flow chamber 71, a horizontal baffle 711 is further fixed inside the first cold flow chamber 71, the horizontal baffle 711 is a square plate made of stainless steel, a peripheral side surface of the horizontal baffle 711 abuts against the partition 36 and an inner wall of the heat exchange box 3, and the horizontal baffle 711 divides the first cold flow chamber 71 into two areas which are not communicated up and down; besides, the cooling flow cavity 7 further includes a second cooling flow cavity 72, and the second cooling flow cavity 72 is located at an end of the heat exchange box 3 away from the guide portion 41.

Referring to fig. 1 and 2, two heat transfer portions 42 are provided, and the length direction of the heat transfer portions 42 is parallel to the length direction of the heat exchange box 3, specifically, one end of one heat transfer portion 42 is located in the upper side region of the first cold flow chamber 71, the other end passes through the partition 36 close to the first cold flow chamber 71 and extends into the hot flow chamber 6, and the portion located in the hot flow chamber 6 is located in the gap between the adjacent ends of the baffle plates 35, and finally the heat transfer portion 42 passes through the partition 36 close to the second cold flow chamber 72 and extends into the second cold flow chamber 72.

Referring to fig. 1 and 2, one end of another heat transfer portion 42 is located in a lower region of the first cold flow chamber 71, the other end of the heat transfer portion 42 passes through the partition 36 adjacent to the first cold flow chamber 71 and extends into the hot flow chamber 6, and the portion located in the hot flow chamber 6 is located in a gap between the adjacent ends of the baffle plates 35, and finally the heat transfer portion 42 passes through the partition 36 adjacent to the second cold flow chamber 72 and extends into the second cold flow chamber 72, and the two heat transfer portions 42 are disposed opposite to each other.

Referring to fig. 1 and 2, when the pressure member 411 guides the external air into the air inlet pipe 4, the air flows into the upper region of the first cold flow chamber 71 along with the guiding portion 41, then flows into the upper heat transfer portion 42, then flows into the second cold flow chamber 72, then flows into the lower heat transfer portion 42, and finally flows into the lower region of the first cold flow chamber 71, and the temperature of the air in the lower region of the first cold flow chamber 71 is higher than that in the upper region of the first cold flow chamber 71, so that the purpose of heating the air introduced into the furnace body 1 by the residual heat of the flue gas is achieved.

Referring to fig. 1 and 2, the flow path of the air in the heat exchange box 3 is in a U-shaped bent shape, so that the air inlet pipe 4 can more effectively utilize the volume of the heat exchange box 3 to prolong the time that the air stays in the heat exchange box 3, thereby reducing the volume of the heat exchange box 3 as much as possible, enabling the air to be heated for a longer time, and further saving space resources and recycling the waste heat of the flue gas.

Referring to fig. 1 and 3, still evenly being fixed with insulating layer 8 on the outer wall of heat transfer case 3, in this embodiment, insulating layer 8 is the glass fiber material, makes when making the flue gas heat the air in intake pipe 4, and the heat of flue gas should not go out to heat transfer case 3 outer diffusion to help promoting heat exchange rate.

Referring to fig. 1 and 4, a filter screen 91 is fixed in one end of the smoke guide tube 9 close to the air outlet 12, and smoke in the kiln carries with some smoke, so that when the smoke passes through the filter screen 91, part of the smoke in the smoke is filtered, and the smoke guide tube 9 is not easily blocked by the smoke in the smoke, and the smoke can more smoothly flow into the heat exchange box 3 to exchange heat with air in the air inlet tube 4, so that the recycling of the waste heat of the smoke is not easily affected.

The implementation principle of the shuttle kiln with the waste heat utilization function in the embodiment of the application is as follows: when the kiln is firing porcelain, the smoke generated in the firing process flows into the smoke guide pipe 9 from the air outlet hole 12, then flows into the heat exchange box 3 from the smoke guide pipe 9, and finally is discharged to the outside of a production workshop from the smoke discharge pipe 10, and in the process that the smoke is simultaneously discharged out of the kiln, the pressurizing piece 411 guides the air to flow into the air inlet pipe 4, when the air flows into the heat exchange box 3 along with the air inlet pipe 4, the air in the air inlet pipe 4 exchanges heat with the smoke, so that the temperature of the air in the air inlet pipe 4 is raised, and finally the heated air flows into the furnace body 1, so that the furnace body 1 has a proper amount of oxygen and the temperature of the furnace body 1 is not easy to be too low, in this design way, the air introduced into the furnace body 1 is heated by the waste heat of the smoke, on one hand, the temperature difference between the air introduced into the furnace body 1 and the furnace body 1 is not easy to be too low, and then the firing quality is not easily influenced, and on the other hand, the heat of the flue gas is recycled, which is beneficial to saving resources.

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

Claims (8)

1. A shuttle kiln with a waste heat utilization function is characterized by comprising: the furnace comprises a heat exchange box (3) fixedly arranged on a furnace body (1), an air inlet pipe (4) fixedly arranged on the furnace body (1) and a pressurizing piece (411), wherein one end of the heat exchange box (3) is communicated with an air outlet hole (12), the other end of the heat exchange box extends towards the direction far away from the air outlet hole (12), and a smoke outlet hole (34) used for discharging smoke is also arranged on the heat exchange box (3); one end of the air inlet pipe (4) is communicated with the air inlet hole (11), and the other end of the air inlet pipe extends into the heat exchange box (3), penetrates out of the heat exchange box (3) and is communicated with the outside; the pressurizing piece (411) is arranged on the air inlet pipe (4), and the pressurizing piece (411) is used for guiding outside air into the air inlet pipe (4).

2. The shuttle kiln with waste heat utilization function according to claim 1, wherein: the air inlet pipe (4) comprises a guide part (41) positioned outside the heat exchange box (3) and a heat transfer part (42) positioned in the heat exchange box (3), and the communication position of the guide part (41) and the heat exchange box (3) is positioned at the end part of one end of the heat exchange box (3); the heat transfer part (42) is arranged in a U-shaped bent mode, two ends of the opening of the heat transfer part (42) are communicated with the guide part (41), and the bent bottom of the heat transfer part (42) is located at the end part, far away from the end part, communicated with the guide part (41), of the heat exchange box (3).

3. The shuttle kiln with waste heat utilization function according to claim 1, wherein: the smoke outlet (34) is positioned at one end of the heat exchange box (3) far away from the end communicated with the air outlet (12).

4. The shuttle kiln with waste heat utilization function according to claim 1, wherein: the inner wall of the heat exchange box (3) is uniformly provided with a plurality of guide plates (35) and the flue gas flows in the heat exchange box (3) in a bending way.

5. The shuttle kiln with waste heat utilization function according to claim 4, wherein: the guide plate (35) inclines towards one side of the heat exchange box (3) close to the smoke outlet (34).

6. The shuttle kiln with waste heat utilization function according to claim 2, wherein: two partition plates (36) are fixed in the heat exchange box (3), the peripheral side surfaces of the partition plates (36) are completely abutted against the inner wall of the heat exchange box (3), one partition plate (36) is positioned at one end, close to the guide part (41), of the heat exchange box (3), the other partition plate (36) is positioned at one end, close to the bent bottom of the heat transfer part (42), of the heat exchange box (3), a heat flow cavity (6) is defined as an area between the two partition plates (36), and a cold flow cavity (7) is defined as an area where the two partition plates (36) are far away from each other; the hot flow cavity (6) is used for containing flue gas, the communication part of the heat exchange box (3) and the air outlet hole (12) and the flue gas outlet hole (34) are positioned in the hot flow cavity (6), and the heat transfer part (42) passes through the hot flow cavity (6); the bent bottom of the heat transfer part (42) is positioned in the cold flow cavity (7), the bent bottom of the heat transfer part (42) is disconnected, and two ends of the disconnected bent bottom of the heat transfer part (42) are positioned in the cold flow cavity (7) far away from the guide part (41); the communication part of the heat transfer part (42) and the guide part (41) is also positioned in the cold flow cavity (7).

7. The shuttle kiln with waste heat utilization function according to claim 1, wherein: and a heat insulation layer (8) is fixed on the outer wall of the heat exchange box (3).

8. The shuttle kiln with waste heat utilization function according to claim 1, wherein: a filter screen (91) is fixedly arranged at the communication position of the heat exchange box (3) and the air outlet hole (12), and the filter screen (91) is used for filtering smoke dust in smoke.

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