Drying device for industrial waste gas waste heat recovery

Abstract

The utility model discloses an industrial waste gas waste heat recovery drying device which comprises a drying treatment box, a driving mechanism is installed in the middle of the top end of the drying treatment box, the output end of the driving mechanism is in transmission connection with a rotating rod, and a waste gas guide pipe and a material injection pipe are installed on the left side and the right side of the top end of the drying treatment box in a penetrating mode respectively. A discharging pipe and an exhaust pipe are installed on the left side face and the right side face of the bottom of the drying treatment box in a penetrating mode correspondingly, the outer side, located above the drying treatment box, of a rotating rod is sequentially sleeved with an extending blade rod and a plurality of sets of mixing blade rods from top to bottom, and L-shaped cleaning scraping brushes are connected to the positions, close to the inner side wall of the drying treatment box, of the two ends of the extending blade rod. The drying device has the advantages that through the integrated mixing, drying, filtering, separating and cleaning cyclic utilization structure, pollution to a drying agent is reduced, the drying agent is prevented from adhering to the inner wall of the device and affecting use, the drying efficiency is improved, meanwhile, the drying cost is saved, cleaning and maintaining are completed, and the using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas waste heat recovery, in particular to a drying device for recovering waste heat from industrial waste gas. Background Art

[0002] With the development of technology, the waste gas heat energy generated in industrial production is recovered by waste heat recovery equipment to improve energy conservation and environmental protection effects. Since some waste gases are prone to contain water vapor, direct recovery may easily cause erosion and damage to the inner wall of the device, so special drying equipment is required for drying treatment.

[0003] After searching, the Chinese patent authorization number CN200920119176.3 discloses an industrial powder drying device with zero exhaust gas emission, which includes a hot air heating furnace, a powder drying furnace, a powder slurry feeder, a cyclone separator and an induced draft fan. The hot air outlet pipe of the hot air heating furnace and the outlet pipe of the powder slurry feeder are respectively connected to the opposite sides of the lower part of the powder drying furnace, the mixed gas outlet pipe at the top of the powder drying furnace is connected to the upper part of the cyclone separator, the top outlet pipe of the cyclone separator is connected to the inlet of the induced draft fan, and the outlet of the induced draft fan is provided with an exhaust gas recycling pipe connected to the air inlet of the hot air heating furnace.

[0004] The industrial powder drying device with zero waste gas emission in the above patent has the following shortcomings: first, the above device dries the waste gas by combining a variety of different mechanical equipment and recycling the desiccant, but the residue carried in the waste gas is easily mixed with the desiccant, causing pollution, and the desiccant is also easy to stick to the inner walls of multiple groups of equipment, causing blockage, and is not conducive to subsequent use, but reduces the drying efficiency. Secondly, the installation combination of multiple mechanical equipment not only increases the drying cost, but also makes it inconvenient to clean and maintain, but reduces the overall use effect.

[0005] To this end, we propose a drying device for recovering waste heat from industrial waste gas to solve the above problems. Utility Model Content

[0006] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0007] To this end, the technical solution adopted in this utility model is:

[0008] The exhaust gas duct is connected with the exhaust gas duct at the bottom of the exhaust gas duct, and the exhaust gas duct is connected with the exhaust gas duct at the bottom of the exhaust gas duct.

[0009] In a preferred example, the present invention can be further configured as follows:

[0010] By adopting the above technical solution, the bottom end of the injection pipe is located inside the drying treatment box and is equipped with a nozzle, one end of the exhaust pipe is located inside the drying treatment box and is sleeved with an umbrella-shaped dust filter cover, and a one-way control valve is installed in the middle of the other end of the exhaust pipe.

[0011] In a preferred example, the present invention can be further configured as follows:

[0012] By adopting the above technical solution, the outer side surface of the L-shaped cleaning scraper brush is respectively fitted with the inner side surface of the drying treatment box and the top end of the trapezoidal filter plate.

[0013] In a preferred example, the present invention can be further configured as follows:

[0014] By adopting the above technical solution, the bottom of the scraper is fitted with the top of the trapezoidal slide.

[0015] In a preferred example, the present invention can be further configured as follows:

[0016] By adopting the above technical solution, one side of the slag discharge hole is close to the outer end of the trapezoidal filter plate, and the interiors of the collection box and the drying treatment box are connected to each other through the slag discharge hole.

[0017] In a preferred example, the present invention can be further configured as follows:

[0018] By adopting the above technical solution, one end of the discharge pipe is close to the outer end of the trapezoidal slide.

[0019] In a preferred example, the present invention can be further configured as follows:

[0020] By adopting the above technical solution, a support frame is installed at the bottom of the drying treatment box.

[0021] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0022] 1. In the utility model, an L-shaped cleaning scraper, a trapezoidal filter plate, a collecting box and a mixing blade rod are arranged. When in use, the rotation of the rotating rod drives the mixing blade rod and the L-shaped cleaning scraper to rotate, so that the desiccant and the exhaust gas are fully mixed and dried, and then filtered by the trapezoidal filter plate to separate the desiccant and the exhaust gas residue, so that the residue falls into the collecting box through the residue discharge hole, so that the desiccant can be continuously utilized, and the exhaust gas after filtration and drying is guided out to the outside for continuous utilization, which not only reduces the pollution of the exhaust gas to the desiccant, but also prevents the desiccant from sticking to the inner wall and affecting the subsequent use, thereby improving the drying efficiency.

[0023] 2. In the utility model, a trapezoidal slide plate and a scraper are provided. When in use, in the above-mentioned beneficial effects, the rotating rod drives the L-shaped cleaning scraper brush to rotate, and also drives the scraper at the bottom to rotate. While completing the above-mentioned waste drying, filtering and separation operations, the cleaning and maintenance of the inside of the device are also completed, which not only saves drying costs, but also increases cleaning and maintenance costs, thereby improving the overall use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view structural schematic diagram of an embodiment of the utility model;

[0025] Figure 2 This is a front cross-sectional structural schematic diagram of an embodiment of the utility model;

[0026] Figure 3 This is a schematic structural diagram of location A of an embodiment of the utility model.

[0027] Reference numerals:

[0028] 1. Drying treatment box; 2. Exhaust gas duct; 3. Injection pipe; 4. Driving mechanism; 5. Collection box; 6. Exhaust pipe; 7. Discharge pipe; 8. Support frame; 9. One-way control valve; 10. Nozzle; 11. Rotating rod; 12. Trapezoidal filter plate; 13. L-shaped cleaning scraper; 14. Mixing blade rod; 15. Extended blade rod; 16. Trapezoidal slide plate; 17. Scraper; 18. Umbrella-shaped dust filter cover; 19. Slag discharge hole. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0030] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0031] A drying device for recovering waste heat from industrial waste gas provided by some embodiments of the utility model will be described below in conjunction with the accompanying drawings.

[0032] Embodiment 1:

[0033] Combination Figure 1-Figure 3 As shown, the utility model provides a drying device for recovering waste heat from industrial waste gas.

[0034] Specifically, it includes a drying treatment box 1, a driving mechanism 4 is installed in the middle of the top of the drying treatment box 1, and the output end of the driving mechanism 4 is connected to the rotating rod 11 in a transmission manner. The left and right sides of the top of the drying treatment box 1 are respectively penetrated with an exhaust gas guide pipe 2 and a material injection pipe 3, and the left and right sides of the bottom of the drying treatment box 1 are respectively penetrated with a discharge pipe 7 and an exhaust pipe 6. The outer side of the rotating rod 11 is located above the drying treatment box 1, and an extension blade rod 15 and a plurality of mixing blade rods 14 are sequentially sleeved from top to bottom. The two ends of the extension blade rod 15 are connected to the inner wall of the drying treatment box 1 with an L-shaped cleaning scraper 1 3. A trapezoidal filter plate 12 is installed in the middle of the drying treatment box 1, and a trapezoidal slide plate 16 is installed at the bottom of the drying treatment box 1. The trapezoidal slide plate 16 is mainly used to facilitate the desiccant to be discharged to the outside through the discharge pipe. At the same time, it is scraped by the scraper 17 to improve the cleaning effect and prevent waste caused by residue. The extended end of the rotating rod 11 is located at the top of the trapezoidal slide plate 16 and is sleeved with the scraper 17. The collection box 5 is installed in the middle of the left and right sides of the drying treatment box 1. The side of the collection box 5 close to the drying treatment box 1 is penetrated with a slag discharge hole 19. The bottom end of the injection pipe 3 is located at the drying A nozzle 10 is installed inside the treatment box 1. One end of the exhaust pipe 6 is located inside the drying treatment box 1 and is sleeved with an umbrella-shaped dust filter cover 18. The umbrella-shaped dust filter cover 18 mainly prevents the desiccant from clogging the exhaust pipe 6. A one-way control valve 9 is installed in the middle of the other end of the exhaust pipe 6. The one-way control valve 9 is mainly used to discharge hot air to the outside through the exhaust pipe 6 to prevent backflow. The outer side surface of the L-shaped cleaning scraper 13 is respectively attached to the inner side surface of the drying treatment box 1 and the top of the trapezoidal filter plate 12. The bottom of the scraper 17 is attached to the top of the trapezoidal slide plate 16. One side of the slag discharge hole 19 is The side is close to the outer end of the trapezoidal filter plate 12, the interior of the collecting box 5 and the drying treatment box 1 are connected to each other through the slag discharge hole 19, and one end of the discharge pipe 7 is close to the outer end of the trapezoidal slide plate 16. The operation of the above-mentioned components allows the desiccant and the exhaust gas to be scraped off the inner wall by the L-shaped cleaning brush 13 and clean the trapezoidal filter plate 12, so that the mixing blade 14 can more fully mix and dry the desiccant and the exhaust gas, and the exhaust gas residue can also be directly separated from the desiccant, which not only reduces the pollution of the exhaust gas to the desiccant, but also prevents the desiccant from sticking to the inner wall of the device, affecting the subsequent use, thereby improving the drying efficiency.

[0035] Embodiment 2:

[0036] Combination Figure 1 and Figure 2 As shown, based on the first embodiment,

[0037] Specifically, by implementing the operation of each component in column 1, each component can perform drying, filtering and separation operations with the desiccant and the exhaust gas, and at the same time, the L-shaped cleaning brush 13 and the scraper 17 can be used to clean and maintain the inside of the device, which not only saves drying costs, but also improves cleaning and maintenance costs, and improves the overall use effect.

[0038] Combination Figure 1 and Figure 2 As shown, in the above embodiment,

[0039] Specifically, a support frame 8 is installed at the bottom of the drying treatment box 1 , and the support frame 8 is mainly used to improve the support and stability of the drying treatment box 1 .

[0040] The working principle and use process of the utility model are as follows: First, when in use, the waste gas is introduced into the interior of the drying treatment box 1 through the waste gas duct 2 and the desiccant through the injection pipe 3 and the nozzle 10. Through the operation of the driving mechanism 4, the rotation of the rotating rod 11 drives the rotation of the L-shaped cleaning scraper 13 connected to the extension blade rod 15 and the rotation of the mixing blade rod 14 sleeved at the bottom of the rotating rod 11 to prevent the desiccant from sticking to the inner wall of the drying treatment box 1. After the mixing blade rod 14 fully mixes the desiccant and the waste gas and dries them, the desiccant and the waste gas residue are separated after being filtered by the trapezoidal filter plate 12, so that the residue falls into the collection box 5 through the slag discharge hole 19. In this way, the drying The desiccant can be discharged through the discharge pipe 7 for continued use outside, and the waste gas after filtering and drying can be discharged to the outside through the exhaust pipe 6 for continued use by opening the one-way control valve 9, which not only reduces the pollution of the waste gas to the desiccant, but also prevents the desiccant from sticking to the inner wall and affecting the subsequent use, thereby improving the drying efficiency. Secondly, when in use, the use of the above-mentioned components enables the rotating rod to drive the rotation of the L-shaped cleaning scraping brush 13, and also drives the scraper 17 at the bottom to rotate. While completing the above-mentioned drying, filtering, cleaning and separation operations, the cleaning and maintenance of the inside of the device are also completed, which not only saves the drying cost, but also increases the cleaning and maintenance cost, thereby improving the overall use effect.

[0041] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A drying device for recovering waste heat from industrial waste gas, comprising a drying treatment box (1), a driving mechanism (4) is installed at the middle of the top of the drying treatment box (1), the output end of the driving mechanism (4) is connected to a rotating rod (11) in a transmission manner, an exhaust gas guide pipe (2) and a material injection pipe (3) are respectively installed on the left and right sides of the top of the drying treatment box (1), and a discharge pipe (7) and an exhaust pipe (6) are respectively installed on the left and right sides of the bottom of the drying treatment box (1), characterized in that: The outer side of the rotating rod (11) is located above the drying treatment box (1) and is sleeved with an extension blade rod (15) and a plurality of mixing blade rods (14) in sequence from top to bottom. The two ends of the extension blade rod (15) are connected to L-shaped cleaning scrapers (13) near the inner wall of the drying treatment box (1). A trapezoidal filter plate (12) is installed in the middle of the interior of the drying treatment box (1). A trapezoidal slide plate (16) is installed at the bottom of the interior of the drying treatment box (1). The extended end of the rotating rod (11) is located at the top of the trapezoidal slide plate (16) and is sleeved with a scraper (17). A collection box (5) is installed in the middle of the left and right sides of the drying treatment box (1). The sides of the collection box (5) close to the drying treatment box (1) are all penetrated with slag discharge holes (19).

2. The drying device for recovering waste heat from industrial waste gas according to claim 1, characterized in that: The bottom end of the injection pipe (3) is located inside the drying treatment box (1) and is equipped with a nozzle (10), one end of the exhaust pipe (6) is located inside the drying treatment box (1) and is sleeved with an umbrella-shaped dust filter cover (18), and a one-way control valve (9) is installed in the middle of the other end of the exhaust pipe (6).

3. The drying device for recovering waste heat from industrial waste gas according to claim 1, characterized in that: The outer side surface of the L-shaped cleaning scraper (13) is respectively fitted with the inner side surface of the drying treatment box (1) and the top end of the trapezoidal filter plate (12).

4. The drying device for recovering waste heat from industrial waste gas according to claim 1, characterized in that: The bottom of the scraper (17) is in contact with the top of the trapezoidal slide plate (16).

5. The drying device for recovering waste heat from industrial waste gas according to claim 1, characterized in that: One side of the slag discharge hole (19) is close to the outer end of the trapezoidal filter plate (12), and the interiors of the collection box (5) and the drying treatment box (1) are connected to each other through the slag discharge hole (19).

6. The drying device for recovering waste heat from industrial waste gas according to claim 1, characterized in that: One end of the discharge pipe (7) is close to the outer end of the trapezoidal slide plate (16).

7. The drying device for recovering waste heat from industrial waste gas according to claim 1, characterized in that: A support frame (8) is installed at the bottom of the drying treatment box (1).

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