An efficient drying device

Abstract

An efficient drying device relates to the technical field of wet viscous garbage treatment, and specifically relates to an improvement of an efficient drying device for wet viscous garbage. An integral external rack is arranged at the outer end of the right side of the main drying cylinder, and the external rack is meshed with the driving output end of the driving device of the main drying cylinder; the hot air collecting pipe is arranged inside the main drying cylinder, and the hot air collecting pipe is supported by several hot air collecting pipe support frames and arranged at the middle position inside the main drying cylinder; a plurality of internal cylinder heat circulation pipes are uniformly arranged on the inner wall of the main drying cylinder, the left sides of the plurality of internal cylinder heat circulation pipes are fixedly connected to the left side of the hot air collecting pipe, and the right sides of the plurality of internal cylinder heat circulation pipes pass through the outer wall of the main drying cylinder and are communicated with the hot air outlet of the bottom heating furnace; the right side of the hot air collecting pipe is connected to the main drying cylinder through a fan and a hot air return pipe, and the main drying cylinder is integrally arranged in a tunnel kiln. It utilizes heat through multiple heat exchange pipes, ensuring heat utilization, which can greatly improve the overall drying efficiency and heat utilization rate, and flips and breaks up the wet viscous garbage during the drying process, further improving the drying efficiency and heat utilization rate.

Description

Technical Field

[0001] The present invention relates to the technical field of wet sticky garbage treatment, and particularly relates to an improvement of an efficient drying device for wet sticky garbage. Background Art

[0002] With the rapid development of the livestock and poultry breeding industry, the treatment of livestock and poultry manure is an important step in the environmental protection treatment of the breeding industry. In the manure treatment process, the drying of manure is the most important step. Similarly, for the treatment of such wet sticky garbage, the first step is to carry out drying treatment.

[0003] In current applications, the drying of wet sticky garbage mostly uses natural air drying to reduce its own water content for subsequent processes. However, natural air drying has many problems: it is greatly affected by the weather, and the emission of odors during natural drying will also have a greater impact on the environment; natural air drying is inefficient, and the air drying process requires a large area of land for work, and a large amount of manual labor is required for leveling, turning, and collecting during the process. The labor intensity of the staff is very high, and the working environment is relatively harsh. Many enterprises have also begun to use drying devices to treat such wet sticky garbage. At present, the thermal utilization rate of these drying devices on the market is relatively low, and the overall drying efficiency is low, which will lead to a significant increase in the overall drying cost.

[0004] Since livestock manure, sludge, distiller's grains, and wet garbage contain a large amount of viscous substances, it is necessary to disperse the wet sticky garbage during the drying process. The entire dispersion and drying process is poor, and it is easy to clog during discharging. Chinese Patent CN201921468458.4 discloses a sludge drying device for sewage treatment, which solves the problem of easy clogging of wet sticky garbage such as sludge during the drying process, but the problem of thermal efficiency utilization has not been solved. Summary of the Invention

[0005] The purpose of the present invention is to provide an efficient drying device in view of the defects and deficiencies of the prior art. It utilizes heat through multiple heat exchange tubes to ensure heat utilization, which can greatly improve the overall drying efficiency and thermal utilization rate, and turns and disperses the wet sticky garbage during the drying process to further improve the drying efficiency and thermal utilization rate.

[0006] To achieve the above object, the present invention adopts the following technical solutions: It includes a main drying cylinder 1, a bottom heating furnace 2, multiple in-cylinder heat circulation pipes 3, a hot air collection pipe 4, a fan 5, a hot air return pipe 6, a main drying cylinder driving device 7, and a hot air collection pipe support frame 8. An integral external rack 11 is provided at the outer end of the right side of the main drying cylinder 1, and the external rack 11 meshes with the driving output end of the main drying cylinder driving device 7; the hot air collection pipe 4 is arranged inside the main drying cylinder 1, and the hot air collection pipe 4 is supported by several hot air collection pipe support frames 8 and arranged at the middle position inside the main drying cylinder; multiple in-cylinder heat circulation pipes 3 are uniformly arranged on the inner wall of the main drying cylinder 1, the left sides of the multiple in-cylinder heat circulation pipes 3 are fixedly connected to the left side of the hot air collection pipe 4, and the right sides of the multiple in-cylinder heat circulation pipes 3 pass through the outer wall of the main drying cylinder 1 and are connected to the hot air outlet of the bottom heating furnace 2; the right side of the hot air collection pipe 4 is connected to the main drying cylinder 1 through the fan 5 and the hot air return pipe 6, and the main drying cylinder 1 is integrally arranged in a tunnel kiln 9.

[0007] A feed inlet 12 is provided on the left side of the main drying cylinder 1, and a discharge outlet 13 is provided on the right side. The main drying cylinder 1 is integrally cylindrical.

[0008] The bottom heating furnace 2 includes a combustion chamber 21, a flue 22, and multiple baffles 23. The combustion chamber 21 is arranged on the left side of the flue 22, the smoke outlet 211 of the combustion chamber 21 is connected to the flue 22, and the baffles 23 are sequentially and uniformly arranged in the flue 22, and multiple baffles 23 are alternately arranged on the upper and lower walls in the flue 22.

[0009] A hot air inlet disk 41 is provided on the left side of the hot air collection pipe 4. The left side of the hot air inlet disk 41 is closed, the right side of the hot air inlet disk 41 is connected to the hot air collection pipe 4, and multiple in-cylinder heat circulation pipes 3 are uniformly connected through the side of the hot air inlet disk 41.

[0010] The hot air collection pipe support frame 8 includes an inner retaining ring 81, an outer support rod 82, and a washer 83. The inner retaining ring 81 is sleeved on the hot air collection pipe 4, a washer 83 is arranged between the inner retaining ring 81 and the hot air collection pipe 4, and several outer support rods 82 are provided. The several outer support rods 82 are uniformly and fixedly arranged between the outer wall of the hot air collection pipe 4 and the inner wall of the main drying cylinder 1.

[0011] Multiple groups of material stirring plates 14 are arranged on the main drying cylinder 1. The material stirring plates 14 are divided into right-angle stirring plates 141 and obtuse-angle stirring plates 142, and the right-angle stirring plates 141 and the obtuse-angle stirring plates 142 are alternately arranged.

[0012] The material stirring plates 14 are grouped, and each group of material stirring plates 14 is composed of multiple segments of material stirring plates 14.

[0013] The described main drying cylinder driving device 7 is arranged at the lower part of the main drying cylinder 1. The main drying cylinder driving device 7 includes a driving gear 71 and a driving motor 72. The driving motor 72 is connected with the driving gear 71 through a transmission shaft, and the driving gear 71 meshes with the external rack 11.

[0014] The working principle of the present invention: Feeding ports 12 and discharging ports 13 are respectively arranged on the left and right sides of the main drying cylinder 1. During operation, wet viscous garbage is added from the feeding port 12. The main drying cylinder 1 is integrally arranged in the tunnel kiln 9, which can better carry out heat preservation and operation; the main drying cylinder 1 is driven to rotate by the main drying cylinder driving device 7. During the rotation process, the main drying cylinder 1 is heated by burning and heating through the bottom heating furnace 2. At the same time, the hot smoke and flame in the combustion chamber 21 go to the right through the flue 22, and under the action of a plurality of baffles 23, the hot smoke and flame run stably and slowly in the flue 22, and finally enter different in-cylinder heat circulation pipes 3 through the right side of the flue 22. Since the in-cylinder heat circulation pipes 3 are arranged in the main drying cylinder 1, the multiple in-cylinder heat circulation pipes 3 can perform secondary heating and drying on the materials to be dried in the main drying cylinder 1 and recycle the heat. The hot air on the left sides of the multiple in-cylinder heat circulation pipes 3 is concentrated and then enters the hot air inlet disc 41, and then enters the hot air collecting pipe 4 and goes to the right. A blower 5 is arranged at the right outlet of the hot air collecting pipe 4. The operation of the blower 5 can ensure the operation of the hot smoke from the flue 22, the in-cylinder heat circulation pipes 3 to the hot air collecting pipe 4. After passing through the blower 5, the hot smoke returns to the main drying cylinder 1 through the hot air return pipe 6. The heat generated by the combustion in the combustion chamber can be fully utilized, and through the operation of the blower 5, the materials in the main drying cylinder 1 can be blown, which can further accelerate the drying.

[0015] During the operation and drying process, the material stirring plate 14 in the main drying cylinder 1 can stir the materials, which can prevent the materials from caking. During the process of stirring the materials, the heat dissipation area can also be increased to accelerate heat dissipation.

[0016] After adopting the above technical solution, the beneficial effect of the present invention is: It utilizes the heat through multiple heat exchange pipes, almost ensuring the full utilization of the heat, which can greatly improve the overall drying efficiency and heat utilization rate, and during the drying process, the wet viscous garbage is turned over and dispersed, further improving the drying efficiency and heat utilization rate. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1It is a schematic structural diagram of the present invention;

[0019] Figure 2 is Figure 1 the view from direction A of

[0020] Figure 3 is Figure 1 the sectional view taken along line D-D of

[0021] Figure 4 It is a schematic internal structure diagram of the main drying cylinder 1 in the present invention;

[0022] Figure 5 It is a schematic structural diagram of the external rack 11 part in the main drying cylinder 1 of the present invention.

[0023] Explanation of reference numerals: main drying cylinder 1, bottom heating furnace 2, internal heat circulation pipe 3 in the cylinder, hot air collecting pipe 4, fan 5, hot air return pipe 6, main drying cylinder driving device 7, hot air collecting pipe support frame 8, tunnel kiln 9, external rack 11, feed inlet 12, discharge outlet 13, combustion chamber 21, flue 22, baffle 23, hot air inlet disc 41, inner retaining ring 81, outer support rod 82, washer 83, material stirring plate 14, right-angle stirring plate 141, obtuse-angle stirring plate 142, driving gear 71, driving motor 72, smoke outlet 211. Detailed implementation manners

[0024] Refer to Figures 1-5As shown in the figure, the technical solution adopted in this specific embodiment is as follows: It consists of a main drying cylinder 1, a bottom heating furnace 2, twelve in-cylinder heat circulation pipes 3, a hot air collecting pipe 4, a fan 5, a hot air return pipe 6, a main drying cylinder driving device 7, and a hot air collecting pipe support frame 8. An integral external rack 11 is provided at the outer end of the right side of the main drying cylinder 1, and the external rack 11 meshes with the driving output end of the main drying cylinder driving device 7; a feed inlet 12 is provided on the left side of the main drying cylinder 1, and a discharge outlet 13 is provided on the right side. The main drying cylinder 1 is cylindrical as a whole; the hot air collecting pipe 4 is arranged inside the main drying cylinder 1, and the hot air collecting pipe 4 is supported by several hot air collecting pipe support frames 8 at the middle position inside the main drying cylinder; multiple in-cylinder heat circulation pipes 3 are evenly arranged on the inner wall of the main drying cylinder 1. The left sides of multiple in-cylinder heat circulation pipes 3 are fixedly connected to the left side of the hot air collecting pipe 4, and the right sides of multiple in-cylinder heat circulation pipes 3 pass through the outer wall of the main drying cylinder 1 and are connected to the hot air outlet of the bottom heating furnace 2. The bottom heating furnace 2 includes a combustion chamber 21, a flue 22, and multiple baffles 23. The combustion chamber 21 is arranged on the left side of the flue 22, the smoke outlet 211 of the combustion chamber 21 is connected to the flue 22, and the baffles 23 are sequentially and evenly arranged in the flue 22. Multiple baffles 23 are alternately arranged on the upper and lower walls in the flue 22; the right side of the hot air collecting pipe 4 is connected to the main drying cylinder 1 through the fan 5 and the hot air return pipe 6. The main drying cylinder 1 is arranged in a tunnel kiln 9 as a whole. A hot air inlet disc 41 is provided on the left side of the hot air collecting pipe 4. The left side of the hot air inlet disc 41 is closed, and the right side of the hot air inlet disc 41 is connected to the hot air collecting pipe 4. Multiple in-cylinder heat circulation pipes 3 are evenly connected through the side of the hot air inlet disc 41. The hot air collecting pipe support frame 8 includes an inner retaining ring 81, an outer support rod 82, and a washer 83. The inner retaining ring 81 is sleeved on the hot air collecting pipe 4, a washer 83 is arranged between the inner retaining ring 81 and the hot air collecting pipe 4, and several outer support rods 82 are provided. Several outer support rods 82 are evenly and fixedly arranged between the outer wall of the hot air collecting pipe 4 and the inner wall of the main drying cylinder 1. Multiple groups of material stirring plates 14 are arranged on the main drying cylinder 1. The material stirring plates 14 are divided into right-angle stirring plates 141 and obtuse-angle stirring plates 142, and the right-angle stirring plates 141 and the obtuse-angle stirring plates 142 are alternately arranged. The material stirring plates 14 are grouped, and each group of material stirring plates 14 is composed of multiple segments of material stirring plates 14. The main drying cylinder driving device 7 is arranged at the lower part of the main drying cylinder 1. The main drying cylinder driving device 7 includes a driving gear 71 and a driving motor 72. The driving motor 72 is connected with a driving gear 71 through a transmission shaft, and the driving gear 71 meshes with the external rack 11.

[0025] In this specific embodiment: a feed inlet 12 and a discharge outlet 13 are respectively arranged on the left and right sides of the main drying cylinder 1. During operation, wet viscous garbage is added from the feed inlet 12. The overall arrangement of the main drying cylinder 1 inside the tunnel kiln 9 can better achieve heat preservation and operation; the main drying cylinder 1 is driven to rotate by the main drying cylinder driving device 7. During the rotation process, the main drying cylinder 1 is heated by the combustion heating of the bottom heating furnace 2. At the same time, the hot smoke and flame in the combustion chamber 21 move to the right through the flue 22, and under the action of multiple baffles 23, the hot smoke and flame run stably and slowly in the flue 22, and finally enter different in-cylinder heat circulation pipes 3 through the right side of the flue 22. Since the in-cylinder heat circulation pipes 3 are arranged inside the main drying cylinder 1, multiple in-cylinder heat circulation pipes 3 can perform secondary heating and drying on the materials to be dried inside the main drying cylinder 1 and recycle the heat for a second time. The hot air on the left sides of multiple in-cylinder heat circulation pipes 3 is concentrated and then enters the hot air inlet disk 41, and then enters the hot air collecting pipe 4 and moves to the right. A fan 5 is arranged at the right outlet of the hot air collecting pipe 4. The operation of the fan 5 can ensure the operation of the hot smoke from the flue 22, the in-cylinder heat circulation pipes 3 to the hot air collecting pipe 4. After passing through the fan 5, the hot smoke returns to the main drying cylinder 1 through the hot air return pipe 6, which can make full use of the heat generated by the combustion in the combustion chamber, and through the operation of the fan 5, blow the materials inside the main drying cylinder 1, which can further accelerate the drying process.

[0026] During the operation of the drying process, the material stirring plate 14 inside the main drying cylinder 1 can stir the materials, which can prevent the materials from caking. During the process of stirring the materials, it can also increase the heat dissipation area and accelerate heat dissipation.

[0027] After adopting the above technical solution, the beneficial effects of the present invention are as follows: It utilizes the heat through multiple heat exchange pipes, almost ensuring the full utilization of the heat, which can greatly improve the overall drying efficiency and heat utilization rate, and during the drying process, the wet viscous garbage is flipped and dispersed, further improving the drying efficiency and heat utilization rate.

[0028] The above is only used to illustrate the technical solution of the present invention and not to limit it. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present invention, as long as they do not depart from the spirit and scope of the technical solution of the present invention, shall be covered by the scope of the claims of the present invention.

Claims

1. An efficient drying device, characterized in that: it includes a main drying cylinder (1), a bottom heating furnace (2), multiple in-cylinder heat circulation pipes (3), a hot air collecting pipe (4), a fan (5), a hot air return pipe (6), a main drying cylinder driving device (7), and a hot air collecting pipe support frame (8). An integral external rack (11) is provided at the outer end of the right side of the main drying cylinder (1), and the external rack (11) meshes with the driving output end of the main drying cylinder driving device (7); the hot air collecting pipe (4) is arranged inside the main drying cylinder (1), and the hot air collecting pipe (4) is supported and arranged at the middle position inside the main drying cylinder through several hot air collecting pipe support frames (8); multiple in-cylinder heat circulation pipes (3) are evenly arranged on the inner wall of the main drying cylinder (1), the left sides of the multiple in-cylinder heat circulation pipes (3) are fixedly connected to the left side of the hot air collecting pipe (4), and the right sides of the multiple in-cylinder heat circulation pipes (3) pass through the outer wall of the main drying cylinder (1) and are connected to the hot air outlet of the bottom heating furnace (2); the right side of the hot air collecting pipe (4) is connected to the main drying cylinder (1) through a fan (5) and a hot air return pipe (6), and the main drying cylinder (1) is integrally arranged in a tunnel kiln (9); the bottom heating furnace (2) includes a combustion chamber (21), a flue (22), and multiple baffles (23). The combustion chamber (21) is arranged on the left side of the flue (22), the smoke outlet (211) of the combustion chamber (21) is connected to the flue (22), and the baffles (23) are sequentially and evenly arranged in the flue (22), and the multiple baffles (23) are alternately arranged on the upper and lower walls in the flue (22); a hot air inlet disc (41) is arranged on the left side of the hot air collecting pipe (4), the left side of the hot air inlet disc (41) is closed, the right side of the hot air inlet disc (41) is connected to the hot air collecting pipe (4), and the side of the hot air inlet disc (41) is evenly and penetratingly connected with multiple in-cylinder heat circulation pipes (3); the hot air collecting pipe support frame (8) includes an inner retaining ring (81), an outer support rod (82), and a washer (83). The inner retaining ring (81) is sleeved on the hot air collecting pipe (4), a washer (83) is arranged between the inner retaining ring (81) and the hot air collecting pipe (4), and several outer support rods (82) are arranged, and the several outer support rods (82) are evenly and fixedly arranged between the outer wall of the hot air collecting pipe (4) and the inner wall of the main drying cylinder (1); multiple groups of material stirring plates (14) are arranged on the main drying cylinder (1), the material stirring plates (14) are divided into right-angle stirring plates (141) and obtuse-angle stirring plates (142), and the right-angle stirring plates (141) and the obtuse-angle stirring plates (142) are alternately arranged; the main drying cylinder driving device (7) is arranged at the lower part of the main drying cylinder (1), the main drying cylinder driving device (7) includes a driving gear (71) and a driving motor (72), the driving motor (72) is connected with a driving gear (71) through a transmission shaft, and the driving gear (71) meshes with the external rack (11).

2. An efficient drying device according to claim 1, characterized in that: The left side of the main drying cylinder (1) is provided with a feed inlet (12), and the right side is provided with a discharge outlet (13). The main drying cylinder (1) is cylindrical as a whole.

3. An efficient drying device according to claim 1, characterized in that: The material stirring plates (14) are arranged in groups, and each group of material stirring plates (14) is composed of multiple segments of material stirring plates (14).

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