Energy-saving rotary furnace with multi-stage heat supply and waste heat utilization

Abstract

The application relates to the technical field of rotary furnaces, and discloses an energy-saving rotary furnace with multi-stage heat supply and waste heat utilization, which comprises a first furnace body, one end of the first furnace body is provided with a second furnace body, one end of the second furnace body is provided with a third furnace body, and both ends of the second furnace body are provided with support box bodies, the support box bodies are used for providing rotary connection between the first furnace body and the second furnace body and the third furnace body, one end of the first furnace body, the second furnace body and the third furnace body is respectively provided with a third combustion end, a second combustion end and a first combustion end, a conveying plate is fixedly installed in the support box body, and the conveying plate is used for conveying materials between the first furnace body and the second furnace body and between the second furnace body and the third furnace body. The three-section heating mode of the furnace body can not only reduce tail gas volume, but also reduce heat energy loss and the energy required for combustion, so that each section of the furnace can be uniformly heated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rotary furnace, in particular to an energy-saving rotary furnace with multi-stage heat supply and waste heat utilization. BACKGROUND

[0002] The rotary furnace is a device for calcining materials, which can process materials of various industries, such as limestone, ceramsite sand, zinc oxide, etc. In the building material industry, the rotary furnace is used for calcining cement clinker, and is also used for calcining clay and limestone and drying slag. In the production of refractory materials, the rotary furnace is used for calcining raw materials to stabilize the size and increase the strength.

[0003] When the rotary furnace is burning, a large amount of smoke and dust exhaust gas will be generated, and the smoke and dust exhaust gas is usually composed of particulate matter. Such exhaust gas containing particulate matter is easy to cause environmental and equipment impact. SUMMARY

[0004] The present application provides an energy-saving rotary furnace with multi-stage heat supply and waste heat utilization, which has the beneficial effect of reducing smoke and dust, and solves the problem of environmental and equipment impact caused by the exhaust gas containing particulate matter generated during the burning of the rotary furnace.

[0005] The present application provides the following technical solution: an energy-saving rotary furnace with multi-stage heat supply and waste heat utilization, comprising a first furnace body, one end of the first furnace body is provided with a second furnace body, one end of the second furnace body is provided with a third furnace body, and both ends of the second furnace body are provided with support box bodies, which are used to provide rotary connection between the first furnace body and the second furnace body and the third furnace body;

[0006] One end of the first furnace body, the second furnace body and the third furnace body is respectively provided with a third combustion end, a second combustion end and a first combustion end;

[0007] The inside of the support box body is fixedly provided with a conveying plate, which is used to convey materials between the first furnace body and the second furnace body and between the second furnace body and the third furnace body;

[0008] The inside of the first furnace body is provided with a first heat recovery box;

[0009] The inside of the second furnace body is provided with a second heat recovery box;

[0010] The inside of the third furnace body is provided with a third heat recovery box;

[0011] The third heat recovery box, the second heat recovery box and the first heat recovery box have the same structure;

[0012] The third heat recovery tank comprises a third heat conduction tank, a suction pipe and a discharge pipe, the top end of the third furnace body is fixedly installed with the third heat conduction tank, the inside of the third heat conduction tank is fixedly installed with the suction pipe, one end of the suction pipe is provided with the discharge pipe, and the lower end of the discharge pipe is used for extending to above the third combustion end;

[0013] The inside of the third heat recovery tank, the second heat recovery tank and the first heat recovery tank is filled with liquid;

[0014] The third heat recovery tank further comprises a heat conduction arc plate and a heat conduction fin, the lower end of the suction pipe is provided with the heat conduction arc plate, the upper surface of the heat conduction arc plate is arranged with the heat conduction fin, and the heat conduction fin is used for extending to the inside of the third heat conduction tank;

[0015] The lower end of the tooth ring is installed with a driving motor, and the driving motor is used for meshing connection with the tooth groove of the tooth ring;

[0016] The inside of the discharge pipe is provided with an agitation structure, the inside of the discharge pipe is provided with a flow channel, the bottom end of the flow channel is provided with a support frame, the inside of the support frame is rotationally installed with a rotating shaft, the top end of the rotating shaft is provided with a spiral blade, and the lower end of the rotating shaft is provided with a stirring blade.

[0017] As an optional solution of the energy-saving rotary furnace with multi-stage heat supply and waste heat utilization, wherein: the second heat recovery tank comprises a second heat conduction tank, a first liquid inlet pipe and a second steam pipe, the second heat conduction tank is consistent with the internal structure of the third heat conduction tank, and one end of the second heat conduction tank is fixedly installed with the first liquid inlet pipe;

[0018] The other end of the second heat conduction tank is fixedly installed with a second liquid outlet pipe, and the upper end of the second liquid outlet pipe is fixedly installed with the second steam pipe located at the other end of the second heat conduction tank;

[0019] One end of the third heat conduction tank is fixedly installed with a second liquid inlet pipe, the other end of the third heat conduction tank is fixedly installed with a conveying pipe, and the upper end of the conveying pipe is installed with the third steam pipe located at the other end of the third heat conduction tank;

[0020] The first heat recovery tank comprises a first heat conduction tank, a reflux pipe, a first steam pipe and a first liquid outlet pipe, the inside of the first furnace body is fixedly installed with the first heat conduction tank, one end of the first heat conduction tank is fixedly installed with the reflux pipe, the other end of the first heat conduction tank is fixedly installed with the first liquid outlet pipe, and the upper end of the first liquid outlet pipe is fixedly installed with the reflux pipe located at the other end of the first heat conduction tank.

[0021] As an optional scheme of the energy-saving rotary furnace with multi-stage heat supply and waste heat utilization, one end of the first liquid outlet pipe is connected with the first liquid inlet pipe, and one end of the second liquid outlet pipe is connected with the second liquid inlet pipe.

[0022] The third steam pipe, the second steam pipe and the first steam pipe are connected in communication to form an exhaust pipe, and a heat preservation pipe is fixedly installed at a lower end of the exhaust pipe.

[0023] High-pressure delivery pumps are installed at one end of the first liquid outlet pipe and one end of the second liquid outlet pipe, and a high-pressure delivery pump is installed at one side of the exhaust pipe.

[0024] As an optional scheme of the energy-saving rotary furnace with multi-stage heat supply and waste heat utilization, a coarse filter structure is fixedly installed at one side of the second furnace body, a fine filter structure is fixedly installed at one side of the coarse filter structure, and one end of the delivery pipe is connected with one side of the coarse filter structure.

[0025] One end of the coarse filter structure is in communication with the fine filter structure.

[0026] As an optional scheme of the energy-saving rotary furnace with multi-stage heat supply and waste heat utilization, the coarse filter structure comprises an outer shell, a collecting pipe, a support shaft, a rubber impeller, a spiral shaft, a power motor and a filtering inclined plate, one side of the outer shell is provided with the collecting pipe, the support shaft is movably installed in the collecting pipe, and the rubber impeller is arranged on the outer side of the support shaft.

[0027] The spiral shaft is movably installed in the support shaft, the power motor is connected with the top end of the spiral shaft, and the filtering inclined plate is arranged on one side of the collecting pipe on the inner wall of the outer shell.

[0028] As an optional scheme of the energy-saving rotary furnace with multi-stage heat supply and waste heat utilization, the fine filter structure comprises a filtering shell, a liquid inlet end, a liquid outlet end, a filtering net bag, a slot, an upper cover and a fixing ring, one side of the filtering shell is provided with the liquid inlet end, the other side of the filtering shell is provided with the liquid outlet end, the filtering net bag is fixedly installed in the filtering shell, the slot is arranged on one side of the filtering net bag, and the slot is used for being installed on one side of the liquid inlet end.

[0029] The upper cover is fixedly installed at the top end of the filtering net bag, the fixing ring is arranged on the lower surface of the upper cover, and the fixing ring is used for fixing the filtering net bag below the upper cover.

[0030] As an optional scheme of the energy-saving rotary furnace with multi-stage heat supply and waste heat utilization, the fine filter structure is provided with a heat exchange box arranged at one side of the second furnace body, one end of the heat preservation pipe is used for being connected with one end of the heat exchange box, and the heat exchange box is symmetrically provided with a sealing plate in the inside.

[0031] The heat exchange box is internally arranged with heat conduction pipes in two sealing plates, and the inner wall of the heat exchange box is spirally provided with a spiral pipe, one end of the spiral pipe being communicated with the heat preservation pipe.

[0032] As an alternative of the energy-saving rotary furnace with multi-stage heat supply and waste heat utilization, the heat preservation pipe is arranged in the conveying pipe, the conveying pipe is inserted into the heat preservation pipe, and a cavity is arranged between the outer side of the conveying pipe and the inner side of the heat preservation pipe.

[0033] The heated water is brought into the heat exchange box through the conveying pipe, and the water vapor is sent into the heat exchange box through the heat preservation pipe and communicated with the spiral pipe, so that the water vapor spirally moves around the heat exchange box and fills the heat exchange box.

[0034] The energy-saving rotary furnace with multi-stage heat supply and waste heat utilization has the following advantages:

[0035] 1. The energy-saving rotary furnace with multi-stage heat supply and waste heat utilization comprises three combustion chambers, and each combustion chamber is provided with a third heat conduction box, a second heat conduction box and a first heat conduction box. The heat in the combustion chamber is used to heat the device, and the heated water is delivered to the next combustion chamber, and the process is repeated to preheat the device, provide heat, increase the temperature in the cavity, and facilitate the rapid rise of heat during combustion. The three-stage heating method can reduce the exhaust gas volume, reduce the heat loss, reduce the energy required for combustion, and ensure that each section of the furnace is evenly heated.

[0036] 2. The energy-saving rotary furnace with multi-stage heat supply and waste heat utilization provides heating effect through the third heat conduction box during the preheating process, and can also wrap the particulate matter generated after combustion, so that the particulate matter cannot float in the air and finally gathers in the water, completing the treatment function of the particulate matter.

[0037] 3. The energy-saving rotary furnace with multi-stage heat supply and waste heat utilization collects the heated steam in the third heat conduction box, the second heat conduction box and the first heat conduction box through the third steam pipe, the second steam pipe and the first steam pipe, and transmits the steam to the heat exchange box through the heat preservation pipe. The heat exchange box further increases the heat in the heat exchange box under the heating condition provided by the conveying pipe, and the double waste heat transfer treatment maximizes the waste heat recovery effect of the device to realize the energy saving function. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 The figure is a structural schematic diagram of the whole device.

[0039] Figure 2 The figure is a structural schematic diagram of the whole device.Figure 1 The local structure schematic diagram of A in the figure.

[0040] Figure 3 The schematic diagram of the pipeline connection structure of the third heat recovery tank, the second heat recovery tank and the first heat recovery tank.

[0041] Figure 4 The schematic diagram of the overall side view structure.

[0042] Figure 5 The schematic diagram of the outer shell structure.

[0043] Figure 6 The schematic diagram of the filter shell structure.

[0044] Figure 7 The internal schematic diagram of the heat exchange tank.

[0045] Figure 8 The internal structure schematic diagram of the heat preservation pipe.

[0046] In the figure: 1, first furnace body; 2, second furnace body; 3, third furnace body; 4, third heat recovery tank; 41, third heat conduction tank; 42, suction pipe; 43, discharge pipe; 44, heat conduction arc plate; 45, heat conduction fin; 46, second liquid inlet pipe; 47, third steam pipe; 48, conveying pipe; 5, second heat recovery tank; 51, second heat conduction tank; 52, first liquid inlet pipe; 53, second steam pipe; 54, second liquid outlet pipe; 6, first heat recovery tank; 61, first heat conduction tank; 62, return pipe; 63, first steam pipe; 64, first liquid outlet pipe; 7, stirring structure; 71, flow channel; 72, support frame; 73, rotating shaft; 74, spiral blade; 75, stirring blade; 8, coarse filter structure; 81, outer shell; 82, collection pipe; 83, support shaft; 84, rubber impeller; 85, spiral shaft; 86, power motor; 87, filter inclined plate; 9, fine filter structure; 91, filter shell; 92, liquid inlet end; 93, liquid outlet end; 94, filter mesh bag; 95, notch; 96, upper cover; 97, fixing ring; 11, heat exchange tank; 12, sealing plate; 13, heat conduction pipe; 14, spiral pipe; 15, heat preservation pipe; 16, support tank body; 17, conveying plate; 18, gear ring; 19, driving motor; 21, third combustion end; 22, second combustion end; 23, first combustion end. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0048] Embodiment 1

[0049] Please refer to Figures 1-8 One kind has multi-stage heat supply and waste heat utilization's energy-saving rotary furnace, including first furnace body 1, one end of first furnace body 1 is equipped with second furnace body 2, one end of second furnace body 2 is equipped with third furnace body 3, both ends of second furnace body 2 are also equipped with support box body 16, support box body 16 is used to provide rotary connection between first furnace body 1 and second furnace body 2 and third furnace body 3;

[0050] First furnace body 1 and second furnace body 2 and third furnace body 3 one end are correspondingly equipped with third combustion end 21, second combustion end 22 and first combustion end 23;

[0051] Support box body 16 is fixedly installed with conveying plate 17 in the inside, and the conveying plate 17 is used to receive the material conveying between first furnace body 1 and second furnace body 2 and second furnace body 2 and third furnace body 3;

[0052] First furnace body 1 is installed with first heat recovery tank 6 in the inside;

[0053] Second furnace body 2 is installed with second heat recovery tank 5 in the inside;

[0054] Third furnace body 3 is installed with third heat recovery tank 4 in the inside;

[0055] Third heat recovery tank 4 and second heat recovery tank 5 and first heat recovery tank 6 structure are identical;

[0056] Third heat recovery tank 4 includes third heat conduction tank 41, suction pipe 42 and discharge pipe 43, third furnace body 3 inside top end is fixedly installed with third heat conduction tank 41, third heat conduction tank 41 is fixedly installed with suction pipe 42 in the inside, one end of suction pipe 42 is equipped with discharge pipe 43, and the lower end of discharge pipe 43 is used to extend to the above of third combustion end 21;

[0057] Third heat recovery tank 4, second heat recovery tank 5 and first heat recovery tank 6 inside are filled with liquid;

[0058] Third heat recovery tank 4 further includes heat conduction arc plate 44 and heat conduction fin 45, the lower end of suction pipe 42 is equipped with heat conduction arc plate 44, and the upper surface of heat conduction arc plate 44 is arranged with heat conduction fin 45, and heat conduction fin 45 is used to extend to the inside of third heat conduction tank 41;

[0059] The lower end of the gear ring 18 is installed with the driving motor 19, and the driving motor 19 is used to be engaged with the gear ring 18 tooth slot connection;

[0060] The interior of the exhaust pipe 43 is provided with an agitating structure 7, which comprises a flow channel 71, a support frame 72, a rotating shaft 73, a spiral blade 74 and a stirring blade 75. The interior of the exhaust pipe 43 is provided with the flow channel 71. The bottom end of the flow channel 71 is provided with the support frame 72. The interior of the support frame 72 is rotatably installed with the rotating shaft 73. The top end of the rotating shaft 73 is provided with the spiral blade 74. The lower end of the rotating shaft 73 is provided with the stirring blade 75.

[0061] The working principle of the third heat recovery tank 4 is as follows: the first furnace body 1 and the second furnace body 2 and the third furnace body 3 are subjected to combustion treatment by the third combustion end 21, the second combustion end 22 and the first combustion end 23. When combusted, the particulate matter formed after combustion is affected by the flame heat wave sprayed by the third combustion end 21 and tumbles in the device. At this time, the particulate matter tumbling in the device is sucked by the negative pressure suction of the suction pipe 42 and is transported into the interior of the third heat conduction tank 41 by the exhaust pipe 43. The interior of the third heat conduction tank 41 is filled with liquid. When the particulate matter contacts with the liquid, the particulate matter is made to have viscosity and to be mutually adhered by the characteristics of the liquid. The weight of the particulate matter is increased. The particulate matter is gathered in the liquid by the wrapping property of the liquid and cannot float in the air. The cleaning operation on the particulate matter is completed.

[0062] Heat recovery: when the third combustion end 21 sprays the flame, the heat generated directly contacts with the lower surface of the heat conduction arc plate 44. At this time, the heat conduction arc plate 44 transmits the heat to the interior of the third heat conduction tank 41 through the heat conduction fins 45 and provides heating effect on the liquid in the interior of the third heat conduction tank 41. The heated liquid can be transported to the equipment through the pipeline for heat recovery.

[0063] When the exhaust gas mixed with the particulate matter is transported into the third heat conduction tank 41 through the exhaust pipe 43, when it passes through the flow channel 71, the spiral blade 74 is affected to form fluctuation and is rotated. The rotating shaft 73 drives the stirring blade 75 to rotate in the liquid and stirs the liquid to tumble. The function of the agitating structure 7 is to form bubbles when the exhaust gas enters the liquid. The bubbles wrap the particulate matter. The bubbles are broken by the stirring of the stirring blade 75. The liquid and the particulate matter are fully contacted. The interference effect on the particulate matter is realized.

[0064] Embodiment 2

[0065] This embodiment is an improvement on the basis of embodiment 1. For details, please refer to Figures 1-8 The second heat recovery tank 5 comprises a second heat conduction tank 51, a first liquid inlet pipe 52 and a second steam pipe 53. The second heat conduction tank 51 is consistent with the internal structure of the third heat conduction tank 41. One end of the second heat conduction tank 51 is fixedly installed with the first liquid inlet pipe 52.

[0066] The other end of the second heat conduction box 51 is fixedly installed with a second liquid outlet pipe 54, and the upper end of the second liquid outlet pipe 54 is fixedly installed with a second steam pipe 53 located at the other end of the second heat conduction box 51;

[0067] The other end of the third heat conduction box 41 is fixedly installed with a delivery pipe 48, and the upper end of the delivery pipe 48 is installed with a third steam pipe 47 located at the other end of the third heat conduction box 41;

[0068] The first heat recovery box 6 comprises a first heat conduction box 61, a reflux pipe 62, a first steam pipe 63 and a first liquid outlet pipe 64, the first heat conduction box 61 is fixedly installed in the first furnace body 1, the reflux pipe 62 is fixedly installed at one end of the first heat conduction box 61, the first liquid outlet pipe 64 is fixedly installed at the other end of the first heat conduction box 61, and the upper end of the first liquid outlet pipe 64 is fixedly installed with the reflux pipe 62 located at the other end of the first heat conduction box 61;

[0069] The first liquid outlet pipe 64 is connected with the first liquid inlet pipe 52, and the second liquid outlet pipe 54 is connected with the second liquid inlet pipe 46;

[0070] The third steam pipe 47, the second steam pipe 53 and the first steam pipe 63 are connected in communication to form an exhaust pipe, and the lower end of the exhaust pipe is fixedly installed with a heat preservation pipe 15;

[0071] The first liquid outlet pipe 64 and one end of the second liquid outlet pipe 54 are both installed with a high-pressure delivery pump, and the exhaust pipe is installed on one side with a high-pressure delivery pump.

[0072] The first furnace body 1, the second furnace body 2 and the third furnace body 3 are consistent in structure, after the particles are heated and absorbed in the first heat recovery box 6, the first heat conduction box 61 is heated to boil, the boiled water is delivered into the first liquid inlet pipe 52 through the first liquid outlet pipe 64, and then delivered into the second heat conduction box 51 through the first liquid inlet pipe 52, so that the heat in the first heat conduction box 61 is sent into the second heat conduction box 51 to form a heating effect, so that the heat is provided before the second heat conduction box 51 is burned, the temperature in the cavity is increased, the heat is easily climbed during burning, and the time required during burning is reduced, then the heat in the second heat conduction box 51 is transmitted to the third heat conduction box 41 through the second liquid inlet pipe 46 through the second liquid outlet pipe 54, and the preheating effect on the subsequent work is completed;

[0073] The device is divided into three combustion chambers, and each combustion chamber is provided with a third heat conduction box 41, a second heat conduction box 51 and a first heat conduction box 61, which heat themselves by utilizing the heat in the combustion chamber, and then deliver the heated water liquid to the next combustion chamber, and so on, so as to preheat the subsequent device, preheat the cavity, provide heat, increase the temperature in the cavity, facilitate the rapid rise of heat during combustion, and reduce the energy required for combustion.

[0074] The three-section rotary kiln is provided with a combustion heating chamber at the joint of each section, which can not only reduce the tail gas volume, but also reduce the heat energy loss, so that each section of the furnace can be uniformly heated.

[0075] Example 3

[0076] This embodiment is an improvement based on example 2, please refer to Figures 1-8 , one side of the second furnace body 2 is fixedly provided with a coarse filter structure 8, one side of the coarse filter structure 8 is fixedly provided with a fine filter structure 9, and one end of the conveying pipe 48 is connected with one side of the coarse filter structure 8.

[0077] One end of the coarse filter structure 8 is communicated with the fine filter structure 9.

[0078] The coarse filter structure 8 comprises an outer shell 81, a collecting pipe 82, a supporting shaft 83, a rubber impeller 84, a spiral shaft 85, a power motor 86 and a filtering inclined plate 87, one side of the outer shell 81 is provided with the collecting pipe 82, the supporting shaft 83 is movably arranged in the collecting pipe 82, and the rubber impeller 84 is arranged on the outer side of the supporting shaft 83.

[0079] The spiral shaft 85 is movably arranged in the supporting shaft 83, the power motor 86 is connected with the top end of the spiral shaft 85, and the filtering inclined plate 87 is arranged on one side of the collecting pipe 82 on the inner wall of the outer shell 81.

[0080] The water liquid is delivered to the inside of the outer shell 81 through the conveying pipe 48, and the conveying pipe 48 is located on one side of the outer shell 81, and according to Figure 5 , when the water liquid enters, it rotates counterclockwise along the inner wall of the outer shell 81, and generates centrifugal force at the same time, so that the particulate matter is thrown outward, and the water liquid passing through is filtered by the filtering inclined plate 87, so that the particulate matter in the inside is removed and gathered between the two rubber impellers 84. The rotation of the power motor 86 drives the spiral shaft 85 to rapidly fall along with the supporting shaft 83, so that the rubber impeller 84 with particulate matter falls and discharges the particulate matter. In this way, the particulate matter in the water can be discharged, and the operation is completed without stopping.

[0081] Example 4

[0082] This embodiment is an improvement on the basis of embodiment 3, specifically, please refer to Figures 1-8 The fine filter structure 9 includes a filter housing 91, a liquid inlet end 92, a liquid outlet end 93, a filter mesh bag 94, a notch 95, an upper cover 96, and a fixing ring 97. One side of the filter housing 91 is provided with the liquid inlet end 92, and the other side of the filter housing 91 is provided with the liquid outlet end 93. The filter mesh bag 94 is fixedly installed inside the filter housing 91. One side of the filter mesh bag 94 is provided with the notch 95, which is used for being installed on one side of the liquid inlet end 92.

[0083] The top end of the filter mesh bag 94 is fixedly installed with the upper cover 96. The lower surface of the upper cover 96 is provided with the fixing ring 97, which is used for fixing the filter mesh bag 94 below the upper cover 96.

[0084] Finally, when the water liquid enters the inside of the filter housing 91, it will enter the inside of the filter mesh bag 94 along the notch 95. The filter mesh bag 94 can finely filter the particulate matters in the water liquid and collect them. After the filter mesh bag 94 completes the collection, the filter mesh bag 94 can be directly taken out as a whole by pulling up the upper cover 96, and then cleaned or directly replaced.

[0085] Embodiment 5

[0086] This embodiment is an improvement on the basis of embodiment 4, specifically, please refer to Figures 1-8 One side of the fine filter structure 9 is provided with the heat exchange box 11 located on one side of the second furnace body 2. One end of the heat preservation pipe 15 is used for being connected with one end of the heat exchange box 11. The inside of the heat exchange box 11 is symmetrically provided with the sealing plate 12.

[0087] The inside of the heat exchange box 11 is arranged with the heat conduction pipe 13 located inside the two sealing plates 12. The inner wall of the heat exchange box 11 is spirally provided with the spiral pipe 14. One end of the spiral pipe 14 is communicated with the heat preservation pipe 15.

[0088] The heat preservation pipe 15 is penetratingly arranged with the conveying pipe 48. The conveying pipe 48 is used for being inserted at the axis of the heat preservation pipe 15. The outer side of the conveying pipe 48 is provided with the cavity between the inner side of the heat preservation pipe 15. The cavity is the heat preservation cavity.

[0089] The heated water liquid is brought into the inside of the heat exchange box 11 through the conveying pipe 48. At the same time, the water vapor is sent into the inside of the heat exchange box 11 through the heat preservation pipe 15, and is communicated with the inside of the spiral pipe 14. The water vapor spirally moves around the inside of the heat exchange box 11 and fills the inside. At this time, the external heat exchange equipment can be used in cooperation with the heat exchange box 11 to guide the internal heat out for use.

[0090] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0091] The above description is merely preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, some improvements and refinements can be made without departing from the technical principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. An energy-saving rotary furnace with multi-stage heat supply and waste heat utilization, comprising a first furnace body (1), characterized in that: One end of the first furnace body (1) is provided with a second furnace body (2), one end of the second furnace body (2) is provided with a third furnace body (3), and both ends of the second furnace body (2) are also provided with a support box (16) for providing rotary connection between the first furnace body (1) and the second furnace body (2) and the third furnace body (3); The first furnace body (1) is provided with a third combustion end (21), a second combustion end (22) and a first combustion end (23) at one end of the second furnace body (2) and the third furnace body (3) respectively; The inside of the support box (16) is fixedly provided with a conveying plate (17) for receiving material conveying between the first furnace body (1) and the second furnace body (2) and the second furnace body (2) and the third furnace body (3); The inside of the first furnace body (1) is provided with a first heat recovery box (6); The inside of the second furnace body (2) is provided with a second heat recovery box (5); The inside of the third furnace body (3) is provided with a third heat recovery box (4); The third heat recovery box (4) is consistent in structure with the second heat recovery box (5) and the first heat recovery box (6); The third heat recovery box (4) comprises a third heat conduction box (41), a suction pipe (42) and a discharge pipe (43), the top end of the third furnace body (3) is fixedly provided with the third heat conduction box (41), the inside of the third heat conduction box (41) is fixedly provided with the suction pipe (42), one end of the suction pipe (42) is provided with the discharge pipe (43), and the lower end of the discharge pipe (43) extends above the third combustion end (21); The inside of the third heat recovery box (4), the second heat recovery box (5) and the first heat recovery box (6) is filled with liquid; The third heat recovery box (4) further comprises a heat conduction arc plate (44) and a heat conduction fin (45), the lower end of the suction pipe (42) is provided with the heat conduction arc plate (44), the upper surface of the heat conduction arc plate (44) is arranged with the heat conduction fin (45), and the heat conduction fin (45) extends into the third heat conduction box (41); The lower end of the third heat recovery box (4) is provided with a driving motor (19) for engaging connection with the gear ring (18). The inside of the discharge pipe (43) is provided with an agitating structure (7), the agitating structure (7) comprises a flow channel (71), a support frame (72), a rotating shaft (73), a spiral blade (74) and a stirring blade (75), the inside of the discharge pipe (43) is provided with the flow channel (71), the bottom end of the flow channel (71) is provided with the support frame (72), the inside of the support frame (72) is rotatably provided with the rotating shaft (73), the top end of the rotating shaft (73) is provided with the spiral blade (74), and the lower end of the rotating shaft (73) is provided with the stirring blade (75).

2. The energy-saving rotary furnace with multi-stage heat supply and waste heat utilization according to claim 1, characterized in that: The second heat recovery tank (5) comprises a second heat conduction tank (51), a first liquid inlet pipe (52) and a second steam pipe (53), the second heat conduction tank (51) is consistent with the internal structure of the third heat conduction tank (41), and one end of the second heat conduction tank (51) is fixedly provided with the first liquid inlet pipe (52); The other end of the second heat conduction tank (51) is fixedly provided with a second liquid outlet pipe (54), and the upper end of the second liquid outlet pipe (54) is fixedly provided with the second steam pipe (53) located at the other end of the second heat conduction tank (51); One end of the third heat conduction tank (41) is fixedly provided with a second liquid inlet pipe (46), and the other end of the third heat conduction tank (41) is fixedly provided with a conveying pipe (48), and the upper end of the conveying pipe (48) is provided with the third steam pipe (47) located at the other end of the third heat conduction tank (41); The first heat recovery tank (6) comprises a first heat conduction tank (61), a return pipe (62), a first steam pipe (63) and a first liquid outlet pipe (64), the first heat conduction tank (61) is fixedly arranged in the first furnace body (1), one end of the first heat conduction tank (61) is fixedly provided with the return pipe (62), the other end of the first heat conduction tank (61) is fixedly provided with the first liquid outlet pipe (64), and the upper end of the first liquid outlet pipe (64) is fixedly provided with the return pipe (62) located at the other end of the first heat conduction tank (61).

3. The energy-saving rotary furnace with multi-stage heat supply and waste heat utilization according to claim 2, characterized in that: The first liquid outlet pipe (64) is connected with the first liquid inlet pipe (52), and the second liquid outlet pipe (54) is connected with the second liquid inlet pipe (46); The third steam pipe (47), the second steam pipe (53) and the first steam pipe (63) are communicated to form an exhaust pipe, and the lower end of the exhaust pipe is fixedly provided with a heat preservation pipe (15); The first liquid outlet pipe (64) and the second liquid outlet pipe (54) are provided with high-pressure conveying pumps at one end, and the exhaust pipe is provided with a high-pressure conveying pump on one side.

4. The energy-saving rotary furnace with multi-stage heat supply and waste heat utilization according to claim 3, characterized in that: One side of the second furnace body (2) is fixedly provided with a coarse filter structure (8), one side of the coarse filter structure (8) is fixedly provided with a fine filter structure (9), and one end of the conveying pipe (48) is connected with one side of the coarse filter structure (8); One end of the coarse filter structure (8) is communicated with the fine filter structure (9).

5. The energy-saving rotary furnace with multi-stage heat supply and waste heat utilization according to claim 4, characterized in that: The coarse filter structure (8) comprises an outer shell (81), a collecting pipe (82), a support shaft (83), a rubber impeller (84), a spiral shaft (85), a power motor (86) and a filtering inclined plate (87), one side of the outer shell (81) is provided with the collecting pipe (82), the support shaft (83) is movably arranged in the collecting pipe (82), and the outer side of the support shaft (83) is arranged with the rubber impeller (84); The spiral shaft (85) is movably arranged in the support shaft (83), the power motor (86) is connected to the top end of the spiral shaft (85), and the filtering inclined plate (87) is arranged on one side of the collecting pipe (82) on one side of the inner wall of the outer shell (81).

6. The energy-saving rotary furnace with multi-stage heat supply and waste heat utilization according to claim 5, characterized in that: The fine filter structure (9) includes a filter shell (91), a liquid inlet end (92), a liquid outlet end (93), a filter mesh bag (94), a notch (95), an upper cover (96) and a fixing ring (97), one side of the filter shell (91) is provided with the liquid inlet end (92), the other side of the filter shell (91) is provided with the liquid outlet end (93), the inside of the filter shell (91) is fixedly installed with the filter mesh bag (94), one side of the filter mesh bag (94) is provided with the notch (95), and the notch (95) is used for being installed on one side of the liquid inlet end (92); The top end of the filter mesh bag (94) is fixedly installed with the upper cover (96), the lower surface of the upper cover (96) is provided with the fixing ring (97), and the fixing ring (97) is used for fixing the filter mesh bag (94) below the upper cover (96).

7. The energy-saving rotary furnace with multi-stage heat supply and waste heat utilization according to claim 6, characterized in that: One side of the fine filter structure (9) is installed with the heat exchange box (11) located on one side of the second furnace body (2), one end of the heat preservation pipe (15) is used for being connected with one end of the heat exchange box (11), and the inside of the heat exchange box (11) is symmetrically provided with the sealing plate (12); The inside of the heat exchange box (11) is arranged with the heat conducting pipe (13) located in the two sealing plates (12), and the inner wall of the heat exchange box (11) is spirally provided with the spiral pipe (14), one end of the spiral pipe (14) is communicated with the heat preservation pipe (15).

8. The energy-saving rotary furnace with multi-stage heat supply and waste heat utilization according to claim 7, characterized in that: The heat preservation pipe (15) and the conveying pipe (48) are arranged in penetration, the conveying pipe (48) is used for being inserted at the axis of the heat preservation pipe (15), a cavity is arranged between the outer side of the conveying pipe (48) and the inside of the heat preservation pipe (15), and the cavity is a heat preservation cavity; The heated water liquid is brought into the inside of the heat exchange box (11) through the conveying pipe (48), at the same time, the heat preservation pipe (15) sends the water vapor into the inside of the heat exchange box (11) and is communicated with the spiral pipe (14), so that the water vapor spirally moves around the inside of the heat exchange box (11) and fills the inside, at this time, the heat exchange equipment is connected, and the heat exchange box (11) is cooperated to guide the heat in the inside to be used.

Images