Sludge segmented heat drying system

Abstract

The utility model discloses a sludge segmented heat drying system, which belongs to the field of sludge treatment and comprises a hot air box, an outer shell is arranged at the top of the hot air box, a waste gas filtering mechanism is arranged at the top of the outer shell, a sludge slitting machine is mounted on one side of the top of the outer shell, an upper-layer conveying mesh belt is arranged on the upper portion inside the outer shell, and a lower-layer conveying mesh belt is arranged on the lower portion inside the outer shell. A lower-layer conveying mesh belt is arranged on the lower portion in the outer shell, the lower-layer conveying mesh belt and the upper-layer conveying mesh belt are arranged in a parallel and staggered mode, the front end of the upper-layer conveying mesh belt is arranged under the sludge slitting machine, sliding grooves are vertically formed in the center positions of the front side surface and the rear side surface of the outer shell, and sliding blocks are installed in the sliding grooves in a sliding mode; after being cut into strips, the sludge is conveyed by the multiple layers of conveying mesh belts and is subjected to hot air drying in the conveying process, and when the upper-layer conveying mesh belt works, the upper-layer conveying mesh belt can drive the auxiliary heel to rotate so as to impact the rotary lower side of the upper-side conveying mesh belt, and then the sludge clamped in mesh gaps is vibrated out.

Description

Technical Field

[0001] The utility model relates to the field of sludge treatment, and more specifically, to a sludge segmented thermal drying system. Background Art

[0002] With the rapid development of industrial technology, large amounts of wastewater are inevitably generated in various industrial production processes. This wastewater must undergo a series of rigorous treatment processes before it can be discharged. During the sewage treatment process, a significant byproduct is produced: sludge. Sludge also contains a large number of pollutants, has a high moisture content, and is bulky, making it difficult to transport and subsequently process. To address this issue, sludge dryers are generally used to dry the sludge. Through specific technical means, sludge dryers utilize heat energy to evaporate the water in the sludge, thereby reducing its moisture content and volume.

[0003] The main processes of sludge thermal drying include sludge cutting, hot air drying, sludge collection, waste heat recovery, etc. During hot air drying, the sludge is mostly moved by a conveyor belt. In this process, hot air is blown from bottom to top, and the moisture in the sludge is driven by the flow of hot air. However, due to the high moisture content of the sludge in the early stage, the sludge will fall to the upper conveyor belt, causing blockage of the mesh holes on the surface of the belt, affecting the upward movement of the hot air below. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a sludge segmented thermal drying system, which can achieve the vibration of the conveyor belt during the sludge conveying process to prevent the mesh from being blocked.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the present invention adopts the following technical solutions.

[0008] A sludge segmented thermal drying system includes a hot air box, an outer shell is provided on the top of the hot air box, an exhaust gas filtering mechanism is provided on the top of the outer shell, a sludge cutter is installed on one side of the top of the outer shell, an upper conveyor mesh belt is provided above the interior of the outer shell, and a lower conveyor mesh belt is provided below the interior of the outer shell, the lower conveyor mesh belt and the upper conveyor mesh belt are arranged in parallel and staggered, the front end of the upper conveyor mesh belt is placed directly below the sludge cutter, and slide grooves are vertically opened at the center positions of the front and rear side surfaces of the outer shell, a slider is slidably installed inside the slide groove, the cross-section of the slider is a T-shaped structure, an auxiliary roller is rotatably installed between the two sliders, the auxiliary roller passes through the upper conveyor mesh belt, the auxiliary roller is parallel to the roller axis of the upper conveyor mesh belt, the auxiliary roller squeezes the lower side of the upper conveyor mesh belt, a spring is provided inside the slide groove, and the bottom of the spring contacts the upper surface of the slider.

[0009] Furthermore, an extension rod is vertically provided on the top of the sliding block, a cross bar is extended outward from the top of the extension rod, and the extension rod and the cross bar form an L-shaped structure.

[0010] Furthermore, a first conical tooth is coaxially installed on one end of the power roller of the upper conveyor mesh belt, and the first conical tooth is placed on the outside of the outer shell. A support plate is provided on the outside of the outer shell, and a rotating shaft is rotated through the support plate. A second conical tooth is provided at one end of the rotating shaft, and the second conical tooth is engaged with the first conical tooth.

[0011] Furthermore, a toggle plate is provided at one end of the rotating shaft away from the second conical tooth, and the toggle plate corresponds to the position of the cross bar.

[0012] Furthermore, a fan is provided on the front surface of the hot air box, and a control box is provided on one side of the surface of the hot air box.

[0013] Furthermore, an observation window is provided on the surface of the outer shell, transparent glass is installed on the inner side of the observation window, and the observation window corresponds to the lower conveyor belt.

[0014] 3. Beneficial effects

[0015] Compared with the existing technology, the advantages of the present invention are: the present invention provides a sludge segmented thermal drying system. After the sludge is cut into strips, it is transported by a multi-layer conveyor mesh belt and is dried by hot air during transportation. When the upper conveyor mesh belt is working, it can drive the auxiliary heel to rotate to impact the rotating lower side of the upper conveyor mesh belt, and then vibrate out the sludge stuck in the mesh gaps, preventing the mesh belt from being blocked and affecting the flow of hot air, thereby ensuring the air drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the upper and lower conveyor belt structures of the present utility model;

[0018] Figure 3 This is a schematic diagram of the auxiliary roller structure of the utility model;

[0019] Figure 4 For the utility model Figure 2 Schematic diagram of the enlarged structure of area A;

[0020] Figure 5 For the utility model Figure 2 Schematic diagram of the enlarged structure of area B.

[0021] Explanation of the numbers in the figure: 1. Hot air box; 101. Fan; 102. Control box; 2. Outer shell; 3. Exhaust gas filtering mechanism; 4. Sludge cutting machine; 5. Lower conveyor mesh belt; 6. Upper conveyor mesh belt; 7. Chute; 8. Slider; 9. Auxiliary roller; 10. Spring; 11. Extension rod; 12. Cross bar; 13. Support plate; 14. First conical tooth; 15. Rotating shaft; 16. Second conical tooth; 17. Toggle plate; 18. Observation window. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] Example:

[0024] See also Figure 1-Figure 4As shown, a sludge staged thermal drying system includes a hot air box 1, an outer shell 2 is provided on the top of the hot air box 1, an exhaust gas filtering mechanism 3 is provided on the top of the outer shell 2 to filter the hot and humid exhaust gas, and a waste heat recovery system is provided inside to recover the waste heat of the hot and humid exhaust gas and transfer the waste heat to the inside of the hot air box 1 at the bottom to reduce energy consumption. A sludge cutter 4 is installed on one side of the top of the outer shell 2 to squeeze and adjust the sludge. An upper conveyor mesh belt 6 is provided above the inside of the outer shell 2, and a lower conveyor mesh belt 5 is provided below the inside of the outer shell 2. Other conveyor mesh belts are also added between the upper conveyor mesh belt 6 and the lower conveyor mesh belt 5. According to the distribution of the individual equipment of the entire thermal drying system, two or three layers of conveyor mesh belts can be provided. The lower conveyor mesh belt 5 and the upper conveyor mesh belt 6 are arranged in parallel and staggered. The upper conveyor mesh belt 6 extends forward, and the front end of the upper conveyor mesh belt 6 is placed on the sludge cutter. The sludge that passes through sludge strip cutting machine 4 falls directly onto the surface of upper conveyor mesh belt 6, and the center position of the front and rear side surfaces of outer shell 2 is vertically opened with chute 7, and slider 8 is slidably installed inside chute 7, and slider 8 has T-shaped cross section, and T-shaped structure can ensure that slider 8 can only slide up and down, and auxiliary roller 9 is rotatably installed between two sliders 8, and auxiliary roller 9 passes through upper conveyor mesh belt 6, and auxiliary roller 9 is parallel to the roller axis of upper conveyor mesh belt 6, and auxiliary roller 9 squeezes the lower side of upper conveyor mesh belt 6. The lower side of upper conveyor mesh belt 6 is the lower side reflux part of mesh belt, so as to tighten upper conveyor mesh belt 6, and spring 10 is arranged inside chute 7, and the bottom of spring 10 contacts with the upper surface of slider 8, and the elastic force of spring 10 makes slider 8 always be subjected to downward force, and when slider 8 is toggled up and down, it can move down quickly, and cause impact to upper conveyor mesh belt 6, and then generate vibration.

[0025] Please refer to Figure 3 and Figure 4 As shown, an extension rod 11 is vertically provided on the top of the slider 8, and a cross bar 12 extends outward from the top of the extension rod 11. The extension rod 11 and the cross bar 12 form an L-shaped structure, so that the slider 8 can be driven to move upward by toggling the cross bar 12.

[0026] Please refer to Figure 4 and Figure 5 As shown, a first conical tooth 14 is coaxially mounted on one end of the power roller shaft of the upper conveyor mesh belt 6. The first conical tooth 14 is placed on the outside of the outer shell 2. A support plate 13 is provided on the outside of the outer shell 2. A rotating shaft 15 is passed through the support plate 13 for rotation. A second conical tooth 16 is provided at one end of the rotating shaft 15. The second conical tooth 16 is meshed with the first conical tooth 14. A toggle plate 17 is provided at the end of the rotating shaft 15 away from the second conical tooth 16. The toggle plate 17 corresponds to the position of the cross bar 12, so that the rotating shaft 15 can be driven to rotate when the upper conveyor mesh belt 6 is working, and then the cross bar 12 is pushed up by the toggle plate 17. When the toggle plate 17 rotates beyond the area of the cross bar 12, the slider 8 will fall rapidly to achieve impact vibration.

[0027] Please refer to Figure 1 As shown, a fan 101 is provided on the front surface of the hot air box 1, a control box 102 is provided on one side of the surface of the hot air box 1, an observation window 18 is provided on the surface of the outer shell 2, and transparent glass is installed on the inside of the observation window 18. The observation window 18 corresponds to the lower conveyor belt 5, so that the state of the air-dried sludge can be observed from the outside.

[0028] Working principle: When in use, the sludge is transported to the inside of the sludge cutter 4 through a screw conveyor, and the sludge is cut into strips by the sludge cutter 4. At this time, the strip sludge will fall to one end of the surface of the upper conveyor mesh belt 6, pass through the lower conveyor mesh belt 5 in turn, and then flow out. During this process, the hot air box 1 blows hot air upward. The sludge can be dried during the upward blowing of the hot air. The waste gas generated is filtered and discharged through the waste gas filter mechanism 3, and the hot gas can also be recovered by the heat recovery mechanism. During the hot drying process, the first conical teeth 14 can drive the second conical teeth 16 to rotate, and then drive the rotating shaft 15 Rotation, due to the presence of the spring 10, the slider 8 always has a downward force, which then drives the auxiliary roller 9 to be placed at the bottom. At this time, the auxiliary roller 9 can press down on the lower side of the upper conveyor mesh belt 6 to tighten the upper conveyor mesh belt 6. When the rotating shaft 15 rotates, the cross bar 12 can be driven up by the toggle plate 17, and then the slider 8 is driven to move up. When the cross bar 12 loses the support of the toggle plate 17, the weight of the slider 8 and the auxiliary roller 9 and the elastic force of the spring 10 are used to make the auxiliary roller 9 move down quickly, and then hit the upper conveyor mesh belt 6 to vibrate out the sludge stuck in the gap of the upper conveyor mesh belt 6.

[0029] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A sludge staged thermal drying system, comprising a hot air box (1), characterized in that: The top of the hot air box (1) is provided with an outer shell (2), the top of the outer shell (2) is provided with an exhaust gas filtering mechanism (3), a sludge strip cutter (4) is installed on one side of the top of the outer shell (2), an upper conveying mesh belt (6) is provided above the interior of the outer shell (2), and a lower conveying mesh belt (5) is provided below the interior of the outer shell (2), the lower conveying mesh belt (5) and the upper conveying mesh belt (6) are arranged in parallel and staggered, the front end of the upper conveying mesh belt (6) is placed directly below the sludge strip cutter (4), and the front and rear sides of the outer shell (2) are provided with a plurality of conveying mesh belts. A chute (7) is vertically opened at the center position of the surface, and a slider (8) is slidably installed inside the chute (7). The cross section of the slider (8) is a T-shaped structure. An auxiliary roller (9) is rotatably installed between the two sliders (8). The auxiliary roller (9) passes through the upper conveyor mesh belt (6). The auxiliary roller (9) is parallel to the roller axis of the upper conveyor mesh belt (6). The auxiliary roller (9) squeezes the lower side of the upper conveyor mesh belt (6). A spring (10) is arranged inside the chute (7), and the bottom of the spring (10) contacts the upper surface of the slider (8).

2. The sludge staged thermal drying system according to claim 1, characterized in that: An extension rod (11) is vertically arranged on the top of the slider (8), a cross bar (12) extends outward from the top of the extension rod (11), and the extension rod (11) and the cross bar (12) form an L-shaped structure.

3. The sludge staged thermal drying system according to claim 2, characterized in that: A first conical tooth (14) is coaxially mounted on one end of the power roller of the upper conveying mesh belt (6), the first conical tooth (14) is placed outside the outer shell (2), a support plate (13) is provided outside the outer shell (2), a rotating shaft (15) is rotatably passed through the support plate (13), a second conical tooth (16) is provided at one end of the rotating shaft (15), and the second conical tooth (16) and the first conical tooth (14) are meshed with each other.

4. The sludge staged thermal drying system according to claim 3, characterized in that: An end of the rotating shaft (15) facing away from the second conical tooth (16) is provided with a toggle plate (17), and the toggle plate (17) corresponds to the position of the cross bar (12).

5. The sludge staged thermal drying system according to claim 1, characterized in that: A fan (101) is provided on the front surface of the hot air box (1), and a control box (102) is provided on one side of the surface of the hot air box (1).

6. The sludge staged thermal drying system according to claim 1, characterized in that: An observation window (18) is provided on the surface of the outer shell (2), and transparent glass is installed inside the observation window (18). The observation window (18) corresponds to the lower conveyor mesh belt (5).

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