Kiln flue gas cooling device capable of recycling heat energy

Abstract

The utility model discloses a kiln flue gas cooling device capable of recycling heat energy. The kiln flue gas cooling device comprises a first box body and a first box cover arranged above the first box body, a second box body is arranged on the inner side of the first box body, a second box cover is arranged above the second box body, the second box body is connected with one end of a fixing pipe, and the other end of the fixing pipe is connected with a main conveying pipe; and one end of a smoke exhaust pipe is arranged in the second box body, and the other end of the smoke exhaust pipe penetrates through the first box cover. According to the kiln flue gas cooling device capable of recycling heat energy, a gas inlet pipe is installed on the side face of a first box cover, a draught fan is installed on the front side of a first box body, the inlet end of the draught fan is connected with one end of a connecting pipe, the other end of the connecting pipe is located in the first box body, and a gas conveying pipe is installed at the outlet end of the draught fan. And hot air between the first box body and the second box body can be sucked in and conveyed to a combustion chamber of the kiln, so that the combustion speed can be accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of glass bottle production, in particular to a kiln fume cooling device for recycling heat energy. Background Art

[0002] A kiln generally refers to a furnace used to fire ceramics or glassware, and is usually made of refractory materials. During the firing process of glass bottles, smoke will be emitted, and the temperature of the smoke is also relatively high. Therefore, a cooling device is needed to cool the smoke and reduce the damage to the emission equipment caused by the heat in the smoke.

[0003] As disclosed in the publication number CN211147355U, a kiln heat exhaust pipe cooling device relates to the kiln temperature control field. It includes an electrical cabinet, a kiln and an exhaust gas duct located in the kiln, the input end of the exhaust gas duct is connected to a cooling duct, the output end of the exhaust gas duct is provided with a fan, there are a plurality of cooling ducts, and the plurality of cooling ducts are arranged along the circumference of the side wall of the input end of the exhaust gas duct; the fan is connected to the electrical cabinet. A kiln heat exhaust duct cooling device of the utility model extracts the high-temperature flue gas in the kiln along the exhaust gas duct through the fan, and at the same time, presses outdoor air into the exhaust gas duct through the cooling duct, and uses the outdoor air to mix with the high-temperature flue gas for cooling, so as to prevent the high-temperature flue gas from damaging the exhaust gas duct and the fan blades; there are a plurality of cooling ducts and they are arranged along the circumference of the side wall of the input end of the exhaust gas duct, and the outdoor air entering the exhaust gas duct will form turbulence, thereby improving the heat exchange between the high-temperature flue gas and the outdoor air, thereby improving the cooling rate;

[0004] However, the flue gas cooling device in the above application still has some shortcomings during use. For example, it is not convenient to recycle the heat in the flue gas, resulting in the loss and waste of heat energy, thereby reducing the use effect of the flue gas cooling device. Therefore, we propose a kiln flue gas cooling device with heat recovery to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a kiln flue gas cooling device with heat recovery and utilization, so as to solve the problem that the flue gas cooling devices currently on the market are not convenient for recycling the heat in the flue gas, resulting in the loss and waste of heat energy, thereby reducing the use effect of the flue gas cooling device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a kiln fume cooling device for heat recovery and utilization, comprising a first box body and a first box cover arranged above the first box body;

[0007] Also includes:

[0008] A second box body is arranged inside the first box body, a second box cover is arranged above the second box body, and the second box body is connected to one end of a fixed pipe, and the other end of the fixed pipe is connected to a main delivery pipe;

[0009] One end of a smoke exhaust pipe is arranged in the second box, and the other end of the smoke exhaust pipe passes through the first box cover. A water inlet pipe is also arranged in the second box, and the other end of the water inlet pipe also passes through the first box cover. A drainage pipe is installed at the bottom end of the second box.

[0010] An air inlet pipe is installed on the side of the first box cover, a fan is installed on the front side of the first box body, and the inlet end of the fan is connected to one end of a connecting pipe, and the other end of the connecting pipe is located in the first box body, and an air supply pipe is installed on the outlet end of the fan.

[0011] Preferably, the first box body and the first box cover are fixed by screws, and a sealing ring is provided at the connection between the first box body and the first box cover to ensure the sealing of the interior of the first box body at a later stage.

[0012] Preferably, the second box body is connected to the first box body by welding, the interior of the second box body is hollow, and the second box body and the drain pipe are fixed to each other.

[0013] Preferably, first connecting plates are provided on both left and right sides of the second box cover, second connecting plates are provided on both left and right sides of the second box body, and the second connecting plates are fixed to the first connecting plates by screws.

[0014] Preferably, the height of the second box body is smaller than that of the first box body, the second box cover and the smoke exhaust pipe are sealed and bonded, and the smoke exhaust pipe and the water inlet pipe are both rubber hoses.

[0015] Preferably, a first filter screen and a second filter screen are disposed on the inner side of the second box body, and both the first filter screen and the second filter screen are bonded to the inner wall of the second box body, and the aperture of the first filter screen is larger than the aperture of the second filter screen.

[0016] Preferably, the connecting pipe and the first box body are connected by welding, and the connecting pipe and the inner side of the first box body are interconnected, which can ensure the normal transportation of gas.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the kiln fume cooling device for heat recovery and utilization can absorb and reuse the heat between the first box and the second box by setting a fan, thereby effectively reducing the loss and waste of heat energy, as shown in the following content:

[0018] (1) An air inlet pipe is installed on the side of the first box cover, a fan is installed on the front side of the first box body, and the inlet end of the fan is connected to one end of the connecting pipe, and the other end of the connecting pipe is located in the first box body. An air delivery pipe is installed on the outlet end of the fan. When the fan is working, the hot air between the first box body and the second box body is sucked in and delivered to the combustion chamber of the kiln, which can speed up the combustion speed;

[0019] Furthermore, cold water is filled inside the second box, and the second box is connected to the fixed pipe, and the other end of the fixed pipe is connected to the main delivery pipe of the smoke, so that the smoke can enter the fixed pipe through the main delivery pipe, and then enter the second box from the fixed pipe, so as to cool the smoke;

[0020] Furthermore, the first box and the air inlet pipe are interconnected, so that the external air will enter the cavity between the first box and the second box through the air inlet pipe. The second box is affected by the high-temperature smoke, which will increase the water temperature, so that the heat of the second box is transferred to the outside, heating the incoming air, and effectively reducing the heat loss;

[0021] (2) A first filter screen and a second filter screen are arranged inside the second housing, and the aperture of the first filter screen is larger than the aperture of the second filter screen, and the second housing is connected to the drain pipe, so that when draining water, the first filter screen and the second filter screen can be used together to intercept impurities in the water, effectively reducing the discharge of impurities;

[0022] Furthermore, first connecting plates are provided on both sides of the left and right sides of the second box cover, and second connecting plates are provided on both sides of the left and right sides of the second box body, and the second connecting plates and the first connecting plates are fixed by screws, so that it is convenient to disassemble and assemble the second box body and the second box cover, and then it is convenient to clean the inside of the second box body to ensure subsequent normal use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall main structure of the utility model;

[0024] Figure 2 This is a rear view structural diagram of the drainage pipe of the utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the second box of the utility model;

[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of the second box body of the utility model;

[0027] Figure 5 This is a schematic diagram of the connection structure between the second box cover and the second connecting plate of the utility model;

[0028] Figure 6This is a bottom view of the structure of the first box cover of the utility model.

[0029] In the figure: 1. first box body; 2. first box cover; 3. second box body; 4. second box cover; 401. first connecting plate; 402. second connecting plate; 5. fixing pipe; 6. main conveying pipe; 7. smoke exhaust pipe; 8. water inlet pipe; 9. drain pipe; 10. first filter; 11. second filter; 12. air inlet pipe; 13. fan; 14. connecting pipe; 15. air supply pipe. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Embodiment 1:

[0032] In this embodiment, the second box 3 is used to cool the hot flue gas from the kiln to reduce the impact of high temperature on other equipment. Figure 1-Figure 2 As shown,

[0033] A second box body 3 is disposed inside the first box body 1, and a second box cover 4 is disposed above the second box body 3, and the second box body 3 is connected to one end of a fixed pipe 5, and the other end of the fixed pipe 5 is connected to a main delivery pipe 6;

[0034] One end of a smoke exhaust pipe 7 is arranged in the second box body 3, and the other end of the smoke exhaust pipe 7 passes through the first box cover 2. A water inlet pipe 8 is also arranged in the second box body 3, and the other end of the water inlet pipe 8 also passes through the first box cover 2. A drainage pipe 9 is installed at the bottom end of the second box body 3.

[0035] When using the kiln flue gas cooling device for heat recovery, first place the device at a corresponding position, then inject cold water into the second box body 3 through the water inlet pipe 8, and after the cold water is added, open the valve on the main delivery pipe 6, so that the kiln flue gas can be transported through the main delivery pipe 6, and the high-temperature flue gas enters the fixed pipe 5 through the main delivery pipe 6. Since one end of the fixed pipe 5 away from the main delivery pipe 6 is located in the second box body 3, the flue gas will enter the second box body 3, and the flue gas will be cooled by the cold water in the second box body 3. Moreover, under the action of water, the impurities in the flue gas can be removed, thereby realizing the primary filtration of the flue gas.

[0036] Embodiment 2:

[0037] In this embodiment, the heat inside the second box 3 is utilized to effectively reduce the waste of heat energy. Figure 4-Figure 5 As shown:

[0038] An air inlet pipe 12 is installed on the side of the first box cover 2, a fan 13 is installed on the front side of the first box body 1, and the inlet end of the fan 13 is connected to one end of a connecting pipe 14, and the other end of the connecting pipe 14 is located in the first box body 1, and an air delivery pipe 15 is installed at the outlet end of the fan 13;

[0039] The first box body 1 and the first box cover 2 are fixed by screws, and a sealing ring is provided at the connection between the first box body 1 and the first box cover 2 to ensure the sealing inside the first box body 1 in the later stage;

[0040] A second box cover 4 is installed above the second box body 3, and the second box cover 4 and the smoke exhaust pipe 7 are fixed, and the smoke exhaust pipe 7 is interconnected with the interior of the second box body 3, so the flue gas cooled by cold water will be transported to the next treatment pipe through the smoke exhaust pipe 7, and the flue gas will continue to be purified to reduce the impact of flue gas emissions on the surrounding environment. As the high-temperature flue gas is cooled, the water inside the second box body 3 will be heated, so the fan 13 can be started while the flue gas is cooled. A connecting pipe 14 is installed at the inlet end of the fan 13, and the connecting pipe 14 is interconnected with the interior of the first box body 1, and is installed on the side of the first box body 1. There is an air intake pipe 12 connected to each other, so when the fan 13 is started, negative pressure will be generated, so that the air intake pipe 12 will suck in the outside air, and the outside air will enter the first box body 1. The inside of the first box body 1 will also be heated due to the temperature transfer of the second box body 3, so the incoming air will be heated. The outlet end of the fan 13 is equipped with an air delivery pipe 15, so the heated gas will be adsorbed out. The air delivery pipe 15 is connected to the kiln combustion chamber to ensure the input of oxygen during combustion. In this way, the heated gas will be transported by the air delivery pipe 15, so that the fuel can be burned more fully during combustion, so as to achieve the purpose of fully utilizing the heat of the kiln;

[0041] Embodiment three:

[0042] In this embodiment, under the action of the first filter 10 and the second filter 11, the water inside the second box 3 can be filtered to reduce the discharge of impurities. Figure 3 and Figure 6 As shown:

[0043] The second box body 3 and the first box body 1 are welded and connected, and the interior of the second box body 3 is hollow, and the second box body 3 and the drain pipe 9 are fixed to each other, the left and right sides of the second box cover 4 are provided with a first connecting plate 401, the left and right sides of the second box body 3 are provided with a second connecting plate 402, and the second connecting plate 402 and the first connecting plate 401 are fixed by screws, the height of the second box body 3 is less than the height of the first box body 1, the second box cover 4 and the smoke exhaust pipe 7 are sealed and bonded, and the smoke exhaust pipe 7 and the water inlet pipe 8 are both rubber hoses, the inner side of the second box body 3 is provided with a first filter screen 10 and a second filter screen 11, and the first filter screen 10 and the second filter screen 11 are both bonded to the inner wall of the second box body 3, and the aperture of the first filter screen 10 is larger than the aperture of the second filter screen 11, the connecting pipe 14 and the first box body 1 are welded and connected, and the connecting pipe 14 and the inner side of the first box body 1 are connected to each other, which can ensure the normal transportation of gas;

[0044] When it is necessary to discharge the water inside the second box body 3, the valve on the drain pipe 9 can be opened to allow the water to be discharged outward through the drain pipe 9. Since the first filter screen 10 and the second filter screen 11 are arranged inside the second box body 3, and the aperture of the first filter screen 10 is larger than the aperture of the second filter screen 11, when draining, the impurities in the water can be intercepted and filtered under the action of the first filter screen 10 and the second filter screen 11, which can effectively reduce the phenomenon of impurities being discharged together with the water. After that, the first box cover 2 is opened, and then the second box cover 4 is opened, and the first filter screen 10 and the second filter screen 11 are disassembled and cleaned to ensure the normal progress of subsequent work. The above is the working process of the entire device. The contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0045] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A kiln flue gas cooling device for heat recovery and utilization, comprising a first box body (1) and a first box cover (2) arranged above the first box body (1); It is characterized in that Also includes: A second box body (3) is arranged inside the first box body (1), a second box cover (4) is arranged above the second box body (3), and the second box body (3) is connected to one end of a fixed pipe (5), and the other end of the fixed pipe (5) is connected to a main delivery pipe (6); One end of a smoke exhaust pipe (7) is arranged in the second box body (3), and the other end of the smoke exhaust pipe (7) passes through the first box cover (2); a water inlet pipe (8) is also arranged in the second box body (3), and the other end of the water inlet pipe (8) also passes through the first box cover (2); and a drainage pipe (9) is installed at the bottom end of the second box body (3); An air inlet pipe (12) is installed on the side of the first box cover (2), a fan (13) is installed on the front side of the first box body (1), and the inlet end of the fan (13) is connected to one end of a connecting pipe (14), and the other end of the connecting pipe (14) is located in the first box body (1), and an air supply pipe (15) is installed at the outlet end of the fan (13).

2. The kiln flue gas cooling device for heat recovery and utilization according to claim 1 is characterized in that: The first box body (1) and the first box cover (2) are fixed by screws, and a sealing ring is provided at the connection between the first box body (1) and the first box cover (2) to ensure the sealing performance of the interior of the first box body (1) in the later stage.

3. The kiln flue gas cooling device for heat recovery and utilization according to claim 1 is characterized in that: The second box body (3) and the first box body (1) are connected by welding, the interior of the second box body (3) is hollow, and the second box body (3) and the drainage pipe (9) are fixed to each other.

4. The kiln flue gas cooling device for heat recovery and utilization according to claim 2 is characterized in that: The second box cover (4) is provided with a first connecting plate (401) on both left and right sides, the second box body (3) is provided with a second connecting plate (402) on both left and right sides, and the second connecting plate (402) and the first connecting plate (401) are fixed by screws.

5. The kiln flue gas cooling device for heat recovery and utilization according to claim 1 is characterized in that: The height of the second box body (3) is smaller than the height of the first box body (1); the second box cover (4) and the smoke exhaust pipe (7) are sealed and bonded, and the smoke exhaust pipe (7) and the water inlet pipe (8) are both rubber hoses.

6. The kiln flue gas cooling device for heat recovery and utilization according to claim 1 is characterized in that: A first filter screen (10) and a second filter screen (11) are arranged on the inner side of the second housing (3), and both the first filter screen (10) and the second filter screen (11) are bonded to the inner wall of the second housing (3), and the aperture of the first filter screen (10) is larger than the aperture of the second filter screen (11).

7. The kiln flue gas cooling device for heat recovery and utilization according to claim 1 is characterized in that: The connecting pipe (14) and the first box body (1) are connected by welding, and the connecting pipe (14) and the inner side of the first box body (1) are interconnected, thereby ensuring normal gas transportation.

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