Rotary kiln waste heat recycling device based on circulation type heat conduction

By designing a rotary kiln waste heat recovery device with flow-through heat conduction, the problems of dust adsorption and small contact area during the flue gas transportation process of cement rotary kilns were solved, and the efficient recovery and utilization of flue gas waste heat was achieved.

CN223663713UActive Publication Date: 2025-12-12HENAN IRON & STEEL GROUP CO LTD +2
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Patent Information

Application Number
CN202422840375.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2025-12-12
Estimated Expiration
2034-11-21

AI Technical Summary

Technical Problem

In existing cement rotary kilns, dust accumulates on the outside of the spiral water pipes during flue gas transport, leading to resource waste. The small contact area between flue gas and water also results in poor waste heat absorption.

Method used

Design a rotary kiln waste heat recovery device based on flow-through heat conduction, including components such as a recovery box, temperature monitor, processing box, slot, one-way valve, cleaning plate, limit rod, lead screw, waterproof motor, servo motor, and stirring fan blade. The slot facilitates the replacement of the one-way valve, the cleaning plate removes dust, and the stirring fan blade accelerates heat conduction, thereby achieving efficient recovery of waste heat from flue gas.

Benefits of technology

It effectively prevents dust blockage, increases the contact area between flue gas and water, improves waste heat absorption efficiency, reduces resource waste, and achieves efficient energy utilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a rotary kiln waste heat recycling device based on circulation type heat conduction. The rotary kiln waste heat recycling device comprises a recycling box, a dispersing mechanism is arranged in the recycling box, the dispersing mechanism comprises a treatment box, an open groove and a one-way valve, and the open groove is formed in the treatment box; and a cleaning mechanism is arranged in the treatment box and comprises a cleaning plate, a limiting rod and a lead screw. According to the rotary kiln waste heat recycling device based on circulation type heat conduction, the open groove is formed in the treatment box, the one-way valve can be blocked after being used for a long time, the one-way valve can be replaced conveniently through the open groove, and therefore flue gas waste heat recycling and reusing are facilitated, and after being used for a long time, dust can be deposited in the treatment box; and a waterproof motor enables a cleaning plate to move in the treatment box through a lead screw, so that dust is cleaned away, stirring fan blades can accelerate movement of water in a recycling box, heat conduction is facilitated, and waste heat recycling is further facilitated.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of flue gas waste heat recycling, in particular to a rotary kiln waste heat recycling device based on flow type heat conduction. BACKGROUND

[0002] Cement rotary kiln is a kind of building material equipment, which belongs to the category of lime kiln and is the main equipment of cement clinker dry and wet production line; Cement rotary kiln is mainly used for calcining cement clinker, and is widely used in cement industry; According to the different heating methods, the cement rotary kiln can be divided into two categories of internal heating and external heating; In addition, it can also be divided into dry process cement rotary kiln and wet process cement rotary kiln according to the different production processes; A large amount of flue gas waste heat will be generated in the production process of cement rotary kiln, if these waste heat is not utilized, it will not only cause energy waste, but also have negative impact on the environment; The recycling of cement rotary kiln flue gas waste heat has important economic and environmental significance, and through reasonable utilization method and technical means, the efficient utilization of energy and the sustainable development of environment can be realized;

[0003] Referring to Chinese patent authorized publication number CN220322067U, authorized publication date is 2024.01.09, a cement rotary kiln flue gas waste heat recycling device is disclosed, which solves the technical problem of a cement rotary kiln flue gas waste heat recycling device that can heat water uniformly and has high waste heat utilization rate.

[0004] But in the process of using the utility model, the outer side of the spiral water pipe will adsorb dust in the process of conveying flue gas, which is not conducive to flue gas absorption, resulting in waste of resources, in addition, the contact area between flue gas and water is small, and the effect of waste heat absorption is not good enough;

[0005] Therefore, we propose a rotary kiln waste heat recycling device based on flow type heat conduction to solve the problems raised in the above. Utility model content

[0006] The utility model aims at providing a rotary kiln waste heat recycling device based on flow type heat conduction to solve the problems raised in the above background technology that in the process of using the utility model, flue gas will cause the outer side of the spiral water pipe to adsorb dust in the process of conveying, which is not conducive to flue gas absorption, resulting in waste of resources, in addition, the contact area between flue gas and water is small, and the effect of waste heat absorption is not good enough.

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a rotary kiln waste heat recycling device based on flow type heat conduction, comprising: a recycling box;

[0008] It also includes:

[0009] The interior of the recycling box is provided with a dispersion mechanism, wherein the dispersion mechanism comprises a processing box, a slot and a one-way valve; the interior of the processing box is provided with the slot, and the slots are arranged in an array;

[0010] The interior of the processing box is provided with a cleaning mechanism, wherein the cleaning mechanism comprises a cleaning plate, a limiting rod and a lead screw; the cleaning plate is slidably connected with the limiting rod, and the limiting rod is arranged in the interior of the processing box.

[0011] Preferably, the interior of the recycling box is provided with a temperature monitor, and the recycling box is slidably connected with a gas conveying pipe; the gas conveying pipe is fixedly connected with the processing box; and the interior of the processing box is slidably connected with the cleaning plate.

[0012] Preferably, the slots are threadedly connected with the one-way valves, and the slots are in one-to-one correspondence with the one-way valves.

[0013] Preferably, the cleaning plate is threadedly connected with the lead screw; the lead screw is fixedly connected with the output shaft of a waterproof motor; and the waterproof motor is arranged on the left side of the processing box.

[0014] Preferably, the left side of the processing box is provided with a first opening; the left side of the processing box is rotatably connected with a first door; and the first door is located on the left of the first opening.

[0015] Preferably, the upper side of the recycling box is fixedly connected with a servo motor; the output shaft of the servo motor is fixedly connected with a rotating shaft; and the outer side of the rotating shaft is provided with stirring blades.

[0016] Preferably, the left side of the recycling box is provided with a second opening; the left side of the recycling box is rotatably connected with a second door; and the second door is located on the left of the second opening.

[0017] Compared with the prior art, the recycling box is provided with the temperature monitor and the gas conveying pipe; the temperature monitor can monitor the temperature in the recycling box, thereby facilitating the recycling and reuse of the flue gas waste heat.

[0018] 1. The recycling box is provided with the temperature monitor and the gas conveying pipe; the temperature monitor can monitor the temperature in the recycling box, thereby facilitating the recycling and reuse of the flue gas waste heat.

[0019] 2. The utility model provides a recycling box is provided with processing box, slot and check valve, the inside of processing box is provided with slot, the existence of slot is convenient for installing check valve, check valve is blocked after long -term use, it is convenient to replace, thereby further advantageously flue gas waste heat recycling;

[0020] 3. It is provided with cleaning plate, spacing rod and screw rod, after long -term use, the inside of processing box can deposit dust, needs cleaning, starts waterproof motor, waterproof motor passes through screw rod and makes cleaning plate move in processing box, thereby cleaning dust;

[0021] 4. It is provided with servo motor, rotating shaft and stirring fan blade, stirring fan blade can accelerate the motion of the water in the recycling box, thereby being favorable to heat conduction, further conveniently recycling waste heat;

[0022] 5. It is provided with first door, second opening and second door, first door can conveniently handle the dust in processing box, and second door is convenient for handling the dust in recycling box, and operation is convenient. ACCURATE DRAWINGS

[0023] Figure 1 It is the recycling box cut structure schematic view of the utility model;

[0024] Figure 2 It is the recycling box three -dimensional structure schematic view of the utility model;

[0025] Figure 3 It is the processing box transverse structure schematic view of the utility model;

[0026] Figure 4 It is the processing box longitudinal structure schematic view of the utility model;

[0027] Figure 5 It is the utility model Figure 4 A enlarged structure schematic view of the utility model.

[0028] In the drawing: 1, recycling box;2, temperature monitor;3, gas pipe;4, processing box;5, slot;6, check valve;7, cleaning plate;8, spacing rod;9, screw rod;10, waterproof motor;11, first opening;12, first door;13, servo motor;14, rotating shaft;15, stirring fan blade;16, second opening;17, second door. SPECIFIC IMPLEMENTATION

[0029] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model. Embodiment one

[0031] The embodiment is a rotary kiln waste heat recycling device based on flow type heat conduction.

[0032] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the inside of the recycling box 1 is provided with a temperature monitor 2, the recycling box 1 is in sliding connection with the gas conveying pipe 3, the gas conveying pipe 3 is in fixed connection with the processing box 4, the inside of the processing box 4 is provided with a slot 5, the slot 5 is in array distribution, the slot 5 is in threaded connection with the one-way valve 6, the slot 5 corresponds to the one-way valve 6 one by one, the inside of the processing box 4 is in sliding connection with a cleaning plate 7, the inside of the processing box 4 is provided with a limiting rod 8, the cleaning plate 7 is in sliding connection with the limiting rod 8, the cleaning plate 7 is in threaded connection with a lead screw 9, the lead screw 9 is in fixed connection with the output shaft of a waterproof motor 10, the waterproof motor 10 is arranged on the left side of the processing box 4, the left side of the processing box 4 is provided with a first opening 11, the left side of the processing box 4 is rotatably connected with a first shutter 12, the first shutter 12 is located on the left side of the first opening 11.

[0033] As shown in Figure 1 , Figure 2 and Figure 4 , the upper side of the recycling box 1 is in fixed connection with a servo motor 13, the output shaft of the servo motor 13 is in fixed connection with a rotating shaft 14, the outer side of the rotating shaft 14 is provided with a stirring fan blade 15, the left side of the recycling box 1 is provided with a second opening 16, the left side of the recycling box 1 is rotatably connected with a second shutter 17, the second shutter 17 is located on the left side of the second opening 16.

[0034] It should be noted that when using the device, open the plug at the water inlet on the upper side of the recycling box 1, add cold water to the inside of the recycling box 1, and do not need to cover the lid, because the gas after flue gas waste heat recovery needs to be discharged from the water inlet, the recycling box 1 and the gas conveying pipe 3 are in sealed state with the first opening 11 and the first shutter 12 and the second opening 16 and the second shutter 17, and there is no water leakage from this place, and the inside of the recycling box 1 is provided with a temperature monitor 2, which can monitor the temperature inside the recycling box 1, so as to facilitate water replacement, thereby facilitating flue gas waste heat recovery and recycling, starting the servo motor 13, the servo motor 13 will rotate the stirring fan blade 15 through the rotating shaft 14, the rotating stirring fan blade 15 can accelerate the movement of the water in the recycling box 1, thereby facilitating heat conduction and facilitating waste heat recovery. Embodiment two

[0036] The embodiment is to solve the problem that dust is adsorbed in the one-way valve 6, affecting the exhaust effect.

[0037] As shown in Figure 1、 Figure 3 、 Figure 4 、 Figure 5 As shown in the figure, the flue gas is transported into the processing box 4 through the gas pipe 3, and then discharged through the one-way valve 6. The dispersed flue gas is in contact with the water in the recycling box 1, and the water absorbs the heat in the flue gas, so as to achieve the purpose of waste heat recovery and utilization. The slot 5 is threadedly connected with the one-way valve 6. The slot 5 is provided to facilitate the installation and replacement of the one-way valve 6. When the one-way valve 6 is blocked, the processing box 4 is taken out from the second opening 16, and then the one-way valve 6 is taken out from the slot 5, so that the new one-way valve 6 can be replaced. The operation is convenient, and the flue gas waste heat recovery and utilization are further facilitated.

[0038] In addition, when the new cold water is replaced, the valve on the front side of the recycling box 1 is opened, so that the sewage can be discharged from the discharge port. The operation is convenient, and then the valve is closed. In addition, dust will inevitably accumulate on the inside of the recycling box 1. The second shutter 17 is rotated to take out the dust from the second opening 16. The operation is convenient. In addition, the lower side of the side surface of the second shutter 17 is connected with the recycling box 1 through a small threaded rod, which has good sealing performance. Specific embodiment three

[0040] This embodiment is to solve the problem of dust accumulation in the processing box 4.

[0041] As shown in the figure, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 After the processing box 4 is used for a long time, dust will deposit in the inside of the processing box 4, which needs to be cleaned. The waterproof motor 10 is started, and the cleaning plate 7 moves in the processing box 4 through the lead screw 9, so as to clean the dust inside the processing box 4. The limiting rod 8 limits the cleaning plate 7, so as to prevent the cleaning plate 7 from being worn by the lead screw 9 and damaging the inner wall of the processing box 4.

[0042] In addition, the inside of the cleaning plate 7 is provided with an exhaust hole, which is convenient for gas conveying. In the initial state, the cleaning plate 7 is located on the right side of the processing box 4. During the cleaning process, the cleaning plate 7 moves from right to left, so as to clean the dust to the vicinity of the first opening 11, which is convenient for taking out the dust. After cleaning, the cleaning plate 7 is moved to the right side of the processing box 4, and the first shutter 12 is opened to clean the dust in the processing box 4. The operation is convenient. In addition, the lower side of the side surface of the first shutter 12 is connected with the processing box 4 through a small threaded rod, which has good sealing performance.

[0043] The content not described in detail in the specification belongs to the prior art known to those skilled in the art, the standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0044] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A rotary kiln waste heat recovery device based on flow-through heat conduction, comprising: Recycling bin (1); Its characteristic is that it further includes: The recycling bin (1) is equipped with a dispersing mechanism, which includes a processing bin (4), a slot (5) and a one-way valve (6). The processing bin (4) has a slot (5) inside, and the slots (5) are arranged in an array. The processing box (4) is equipped with a cleaning mechanism, which includes a cleaning plate (7), a limiting rod (8) and a lead screw (9). The cleaning plate (7) is slidably connected to the limiting rod (8), and the limiting rod (8) is located inside the processing box (4).

2. The rotary kiln waste heat recovery device based on flow-through heat conduction according to claim 1, characterized in that: A temperature monitor (2) is installed inside the recycling box (1), and the recycling box (1) is slidably connected to the gas supply pipe (3), and the gas supply pipe (3) is fixedly connected to the processing box (4), and a cleaning plate (7) is slidably connected inside the processing box (4).

3. The rotary kiln waste heat recovery device based on flow-through heat conduction according to claim 1, characterized in that: The slot (5) is threadedly connected to the one-way valve (6), and the slot (5) corresponds one-to-one with the one-way valve (6).

4. The rotary kiln waste heat recovery device based on flow-through heat conduction according to claim 1, characterized in that: The cleaning plate (7) is threadedly connected to the lead screw (9), and the lead screw (9) is fixedly connected to the output shaft of the waterproof motor (10), and the waterproof motor (10) is located on the left side of the treatment box (4).

5. A rotary kiln waste heat recovery device based on flow-through heat conduction according to claim 4, characterized in that: The processing box (4) has a first opening (11) on its left side, and a first stop (12) is rotatably connected to the left side of the processing box (4), and the first stop (12) is located to the left of the first opening (11).

6. The rotary kiln waste heat recovery device based on flow-through heat conduction according to claim 1, characterized in that: A servo motor (13) is fixedly connected to the upper side of the recycling box (1), and the output shaft of the servo motor (13) is fixedly connected to the rotating shaft (14), and a stirring fan blade (15) is provided on the outer side of the rotating shaft (14).

7. A rotary kiln waste heat recovery device based on flow-through heat conduction according to claim 1, characterized in that: The recycling bin (1) has a second opening (16) on its left side, and a second door (17) is rotatably connected to the left side of the recycling bin (1), and the second door (17) is located to the left of the second opening (16).

Citation Information

Patent Citations

  • Flue gas waste heat recycling device for rotary cement kiln

    CN220322067U