Waste heat recovery device of refractory material drying furnace

Abstract

The waste heat recovery device of the refractory material drying furnace comprises a waste heat boiler shell, a waste heat receiving pipeline is installed on the waste heat boiler shell, a water storage tank is fixedly installed in the waste heat boiler shell, a heating cavity is formed between the water storage tank and the waste heat boiler shell, and a boiler cleaning mechanism is installed at the top of the waste heat boiler shell. The waste heat receiving pipeline is connected with the smoke exhaust pipeline of the refractory material drying furnace, smoke exhausted by the refractory material drying furnace is led into the heating cavity to heat the water storage tank body, the water storage tank body is in a spherical protrusion shape, and the boiler cleaning mechanism is movably attached to the bottom of the water storage tank. When water scale and impurities need to be cleaned, the output of the driving motor and the output of the electric push rod drive the cleaning scraping plate to ascend and descend to scrape and clean the side wall and the bottom wall of the whole water storage tank body, finally the water is discharged from the blow-off pipe, and the cleaning efficiency of the water scale and other impurities in the water storage tank body of the waste heat recovery device of the refractory material drying furnace is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery of refractory material drying furnaces, in particular to a waste heat recovery device of refractory material drying furnaces. Background Art

[0002] At present, refractory materials are usually dried in a drying furnace. The drying furnace for refractory materials is equipped with one or more burners installed on the side of the converter combustion chamber, and a chimney is installed on the top surface of the converter combustion chamber. The flue gas is naturally discharged through the chimney. This combustion method has a high emission temperature and a low thermal energy utilization rate. At the same time, in order to improve the thermal energy utilization rate, it is generally adopted to add a waste heat boiler to the flue gas emission pipeline of the drying furnace to heat the stored water, so as to realize the utilization of the waste heat from the drying of the refractory materials.

[0003] However, it is rather troublesome to clean the scale and other impurities in the internal water storage tank of the waste heat boiler of the existing refractory drying furnace, and usually the side walls and the bottom need to be cleaned manually, and the cleaning efficiency is low.

[0004] Therefore, in view of the shortcomings of the prior art, it is necessary to provide a waste heat recovery device for a refractory drying furnace to solve the shortcomings of the prior art. Utility Model Content

[0005] The purpose of the utility model is to avoid the deficiencies of the prior art and provide a waste heat recovery device for a refractory material drying furnace. The waste heat recovery device for the refractory material drying furnace is connected to the smoke exhaust pipe of the refractory material drying furnace through a waste heat receiving pipe, and the smoke exhausted from the refractory material drying furnace is introduced into the interior of the heating chamber to heat the water storage tank. When scale and impurities need to be cleaned, the driving motor output drives the cleaning scraper to scrape and clean the side wall of the water storage tank, and then the electric push rod output drives the cleaning scraper to rise and fall to scrape and clean the side wall and bottom wall of the entire water storage tank. At the same time, impurities such as scale can flow to the edge through the spherical protrusion on the bottom of the water storage tank, and are finally discharged from the drain pipe, thereby improving the cleaning efficiency of the water storage tank of the waste heat recovery device for the refractory material drying furnace.

[0006] The above-mentioned purpose of the utility model is achieved through the following technical means.

[0007] Provided is a waste heat recovery device for a refractory drying furnace, comprising a waste heat boiler shell, a waste heat receiving pipe installed on the waste heat boiler shell, a water storage tank fixedly installed inside the waste heat boiler shell, a heating cavity provided between the water storage tank and the waste heat boiler shell, a boiler cleaning mechanism installed on the top of the waste heat boiler shell, the bottom of the water storage tank is spherically raised, the boiler cleaning mechanism and the bottom of the water storage tank are movably fitted, a sewage pipe and a water outlet pipe connected to the water storage tank are provided on the waste heat boiler shell, and an exhaust pipe is provided on the waste heat boiler shell;

[0008] The boiler cleaning mechanism includes a positioning frame, which is fixedly installed on the top of the waste heat boiler shell, a driving motor is fixedly installed on the top of the positioning frame, the output end of the driving motor rotates through the positioning frame and is fixedly installed with a first positioning plate, an electric push rod is fixedly installed on the bottom of the first positioning plate, a second positioning plate is fixedly installed on the output end of the electric push rod, a cleaning shaft is fixedly installed on the bottom of the second positioning plate, and one end of the cleaning shaft away from the second positioning plate moves through the waste heat boiler shell and the top of the water storage tank and is fixedly installed with a cleaning scraper.

[0009] Specifically, an arc-shaped scraping groove is provided at the bottom of the cleaning scraper, the arc-shaped scraping groove is movably fitted with the bottom of the water storage tank body, and the two sides of the cleaning scraper are fitted with the inner wall of the water storage tank body.

[0010] Preferably, the sewage pipe is installed at the bottom edge of the water storage tank body close to the side wall of the water storage tank body.

[0011] Specifically, an inspection door is provided on the shell of the waste heat boiler.

[0012] Furthermore, a support frame is installed at the bottom of the waste heat boiler shell.

[0013] The utility model is connected with the smoke exhaust duct of the refractory material drying furnace through a waste heat receiving pipe, and the smoke exhausted by the refractory material drying furnace is introduced into the interior of the heating chamber to heat the water storage tank body. When scale and impurities need to be cleaned, the driving motor output drives the cleaning scraper to scrape and clean the side wall of the water storage tank body, and then the electric push rod output drives the cleaning scraper to rise and fall to scrape and clean the side wall and bottom wall of the entire water storage tank body. At the same time, the spherical protrusion on the bottom of the water storage tank body can make impurities such as scale flow to the edge and finally be discharged from the drain pipe, thereby improving the cleaning efficiency of the water storage tank body of the waste heat recovery device of the refractory material drying furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described with reference to the accompanying drawings, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0015] Figure 1 The utility model is a schematic diagram of the main cross-sectional structure of a waste heat recovery device of a refractory material drying furnace.

[0016] Figure 2 The utility model is a three-dimensional structural schematic diagram of a cleaning scraper of a waste heat recovery device of a refractory material drying furnace.

[0017] from Figure 1 to Figure 2 Including:

[0018] 1. Waste heat boiler shell;

[0019] 2. Waste heat receiving pipeline;

[0020] 3. Water storage tank;

[0021] 4. Heating cavity;

[0022] 5. Boiler cleaning mechanism;

[0023] 51. Positioning frame, 52. Driving motor, 53. First positioning plate, 54. Electric push rod, 55. Second positioning plate, 56. Cleaning shaft, 57. Cleaning scraper;

[0024] 6. Sewage pipe;

[0025] 7. Water outlet pipe;

[0026] 8. Exhaust duct;

[0027] 9. Arc scraping groove;

[0028] 10. Inspection door;

[0029] 11. Support frame. DETAILED DESCRIPTION

[0030] The utility model is further described in conjunction with the following embodiments.

[0031] Example 1.

[0032] like Figure 1-2 As shown, a waste heat recovery device for a refractory drying furnace comprises a waste heat boiler shell 1, a waste heat receiving pipe 2 is installed on the waste heat boiler shell 1, a water storage tank 3 is fixedly installed inside the waste heat boiler shell 1, a heating cavity 4 is provided between the water storage tank 3 and the waste heat boiler shell 1, a boiler cleaning mechanism 5 is installed on the top of the waste heat boiler shell 1, the bottom of the water storage tank 3 is a spherical protrusion, the boiler cleaning mechanism 5 and the bottom of the water storage tank are movably fitted, a sewage pipe 6 and a water outlet pipe 7 connected to the water storage tank 3 are provided on the waste heat boiler shell 1, and an exhaust pipe 8 is provided on the waste heat boiler shell 1.

[0033] The present application is used to recycle the flue gas discharged from the refractory material drying furnace and solve the problem of low cleaning efficiency of the water storage tank 3. First, the flue gas exhaust pipe of the refractory material drying furnace is connected through the waste heat receiving pipe 2 to receive the exhaust flue gas, and then the flue gas is introduced into the heating chamber 4 to heat the water storage tank 3, so as to realize the utilization of the waste heat of the refractory material drying furnace. Then, the interior of the water storage tank 3 is cleaned through the boiler cleaning mechanism 5. The boiler cleaning mechanism 5 and the spherical raised bottom of the water tank are movably fitted to realize the flow of impurities such as scale to the edge of the water storage tank 3, so that impurities such as scale are discharged from the drain pipe 6. The exhaust pipe 8 can discharge the flue gas after the waste heat utilization is completed, and the water outlet pipe 7 can discharge the water inside the heated water storage tank 3 for utilization.

[0034] The boiler cleaning mechanism 5 includes a positioning frame 51, which is fixedly installed on the top of the waste heat boiler shell 1. A driving motor 52 is fixedly installed on the top of the positioning frame 51. The output end of the driving motor 52 rotates through the positioning frame 51 and is fixedly installed with a first positioning plate 53. An electric push rod 54 is fixedly installed at the bottom of the first positioning plate 53. A second positioning plate 55 is fixedly installed at the output end of the electric push rod 54. A cleaning shaft 56 is fixedly installed at the bottom of the second positioning plate 55. The end of the cleaning shaft 56 away from the second positioning plate 55 moves through the waste heat boiler shell 1 and the top of the water storage tank 3 and is fixedly installed with a cleaning scraper 57.

[0035] The boiler cleaning mechanism 5 fixes the driving motor 52 through the positioning frame 51, and then drives the first positioning plate 53 to rotate through the output of the driving motor 52, thereby driving the electric push rod 54, the cleaning shaft 56 and the cleaning scraper 57 to rotate, so as to scrape and clean the side wall of the water storage tank 3. At the same time, the output of the electric push rod 54 drives the lifting of the cleaning shaft 56 and the cleaning scraper 57 to clean the side wall and bottom of the entire water storage tank 3. The positioning frame 51, the first positioning plate 53 and the second positioning plate 55 are all made of heat-insulating materials to prevent the electric push rod 54, the driving motor 52 and other equipment from being damaged by temperature.

[0036] An arc-shaped scraping groove 9 is provided at the bottom of the cleaning scraper 57 , and the arc-shaped scraping groove 9 is movably fitted with the bottom of the water storage tank body 3 , and both sides of the cleaning scraper 57 are fitted with the inner wall of the water storage tank body 3 .

[0037] The bottom of the cleaning scraper 57 is movably fitted with the bottom of the water storage tank 3 through the arc-shaped scraping groove 9 to clean the bottom of the water storage tank 3, and at the same time, it can also facilitate impurities such as scale to flow to the bottom edge and enter the interior of the sewage pipe 6.

[0038] The sewage pipe 6 is installed at the bottom edge of the water storage tank body 3 close to the side wall of the water storage tank body 3.

[0039] The position of the sewage pipe 6 matches the bottom shape of the water storage tank 3 to achieve complete discharge of impurities such as scale.

[0040] An inspection door 10 is provided on the shell 1 of the waste heat boiler.

[0041] The interior of the heating chamber 4 and the water storage tank 3 can be inspected through the inspection door 10 .

[0042] A support frame 11 is installed at the bottom of the waste heat boiler shell 1.

[0043] The support frame 11 is used to fix the position of the waste heat boiler shell 1 .

[0044] The utility model is connected with the smoke exhaust duct of the refractory material drying furnace through the waste heat receiving pipe 2, and the smoke exhausted by the refractory material drying furnace is introduced into the interior of the heating chamber 4 to heat the water storage tank body 3. When scale and impurities need to be cleaned, the driving motor 52 outputs to drive the cleaning scraper 57 to scrape and clean the side wall of the water storage tank body 3, and then the electric push rod 54 outputs to drive the cleaning scraper 57 to rise and fall to scrape and clean the side wall and bottom wall of the entire water storage tank body. At the same time, the bottom of the water storage tank body 3 through the spherical protrusion can make scale and other impurities flow to the edge, and finally be discharged from the drain pipe 6, thereby improving the cleaning efficiency of scale and other impurities in the water storage tank body 3 of the waste heat recovery device of the refractory material drying furnace.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the protection scope of the utility model. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A waste heat recovery device for a refractory drying furnace, characterized in that: It comprises a waste heat boiler shell, a waste heat receiving pipe is installed on the waste heat boiler shell, a water storage tank is fixedly installed inside the waste heat boiler shell, a heating cavity is provided between the water storage tank and the waste heat boiler shell, a boiler cleaning mechanism is installed on the top of the waste heat boiler shell, the bottom of the water storage tank is a spherical protrusion, the boiler cleaning mechanism and the bottom of the water storage tank are movably fitted, a sewage pipe and a water outlet pipe connected with the water storage tank are provided on the waste heat boiler shell, and an exhaust pipe is provided on the waste heat boiler shell; The boiler cleaning mechanism includes a positioning frame, which is fixedly installed on the top of the waste heat boiler shell, a driving motor is fixedly installed on the top of the positioning frame, the output end of the driving motor rotates through the positioning frame and is fixedly installed with a first positioning plate, an electric push rod is fixedly installed on the bottom of the first positioning plate, a second positioning plate is fixedly installed on the output end of the electric push rod, a cleaning shaft is fixedly installed on the bottom of the second positioning plate, and one end of the cleaning shaft away from the second positioning plate moves through the waste heat boiler shell and the top of the water storage tank and is fixedly installed with a cleaning scraper.

2. The waste heat recovery device for a refractory drying furnace according to claim 1, characterized in that: The bottom of the cleaning scraper is provided with an arc-shaped scraping groove, the arc-shaped scraping groove is movably fitted with the bottom of the water storage tank body, and the two sides of the cleaning scraper are fitted with the inner wall of the water storage tank body.

3. The waste heat recovery device for a refractory drying furnace according to claim 2, characterized in that: The sewage pipe is installed at the bottom edge of the water storage tank body close to the side wall of the water storage tank body.

4. The waste heat recovery device for a refractory drying furnace according to claim 1, characterized in that: An inspection door is provided on the shell of the waste heat boiler.

5. The waste heat recovery device for a refractory drying furnace according to claim 1, characterized in that: A support frame is installed at the bottom of the waste heat boiler shell.

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