Sludge full-drying treatment device

Abstract

The application discloses a sludge full-drying treatment device, which comprises a base connected with a heat preservation box body, a first belt conveyor, a second belt conveyor, a crushing structure and a belt conveyor heating structure arranged in the heat preservation box body from high to low in sequence, wherein the first belt conveyor, the second belt conveyor, the crushing structure and the belt conveyor heating structure are all in transmission connection with a transmission structure, a wind drying structure is arranged on one side of the heat preservation box body, and a condensation structure is arranged on the top of the heat preservation box body. The sludge full-drying treatment device provided by the application can realize full dehydration through the synergistic effect of heat conduction and mechanical movement, and can realize linkage cost reduction, land area reduction and final output of full-drying sludge through the space stacking process design while ensuring the treatment efficiency.

Description

Technical Field

[0001] This invention relates to the field of sludge treatment technology, specifically to a sludge complete drying treatment device. Background Technology

[0002] Patent application CN202210858347.4 discloses a sludge drying device, comprising: a first heat exchange device, a heating unit, and a conveyor belt. The first air inlet of the first heat exchange device is suitable for introducing external air. The air inlet of the heating unit is connected to the first air outlet of the first heat exchange device, and the heating unit is equipped with a heat storage device. The conveyor belt is equipped with a first air distribution device and a first air collection device, and the conveyor belt is suitable for conveying the sludge to be treated. The first air distribution device, with its air inlet connected to the air outlet of the heating device, is used to blow heated air onto the sludge to be treated on the conveyor belt. By incorporating a heat storage device, the heating unit can store the heat generated during off-peak electricity hours and stop the power-to-heat conversion during peak electricity hours. The stored heat energy is then used to heat the heated fresh air and the dehumidified steam, effectively reducing operating costs.

[0003] In the existing technologies, including the aforementioned patents, the complete drying of sludge requires multi-stage treatment. Existing sludge drying processes typically involve multiple stages, including a pretreatment stage, sludge thickening (reducing sludge volume through gravity settling or mechanical means), and the addition of flocculants (such as cationic / anionic polymers) to improve dewatering performance and disrupt colloidal stability. Subsequently, belt filter presses, plate and frame filter presses, or centrifugal dewatering are used to reduce the moisture content to 80%-85%. Finally, hot air at approximately 100°C or contact heat transfer is used to remove bound water, reducing the moisture content to 10%-15%. However, these methods still cannot achieve complete drying. Furthermore, multi-stage treatment requires significant power support, resulting in high energy consumption and a large footprint. Therefore, optimizing the linkage of multi-stage transmission structures to improve efficiency, reduce costs, and better improve the complete drying and dewatering of sludge are key technical issues. Summary of the Invention

[0004] The purpose of this invention is to provide a sludge drying treatment device to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sludge drying treatment device, comprising a base connected to an insulated box, wherein a first belt conveyor, a second belt conveyor, a crushing structure, and a belt conveyor heating structure are arranged sequentially from high to low inside the insulated box, wherein the first belt conveyor, the second belt conveyor, the crushing structure, and the belt conveyor heating structure are all connected to a transmission structure, an air drying structure is provided on one side of the insulated box, and a condensation structure is provided on the top of the insulated box.

[0006] Furthermore, the belt conveyor heating structure includes a third belt conveyor and a heating plate. The surface of the heating plate is patterned with diamond patterns. The outer ring of the belt of the third belt conveyor is connected to multiple push plates that are equidistantly arranged. The push plates slide in contact with the surface of the heating plate. The bottom of the heating plate is connected to symmetrically arranged push blocks. The opposite ends of two push blocks are connected to one end of equidistantly arranged vibrating elastic elements. The other end of the vibrating elastic elements is connected to a fixed block. The fixed block is connected to a base. The two push blocks at one end of the heating plate are connected to a vibrating block. The vibrating block slides in contact with a through slot in the insulation box. The vibrating block contacts a cam. The cam is driven by the third belt conveyor.

[0007] Furthermore, the bottom of the heating plate is rotatably connected to a plurality of equidistant rotating rollers, and the rotating rollers are in contact with the surface of the base.

[0008] Furthermore, the transmission structure includes a drive motor and multiple pulleys. The drive motor is connected to one of the pulleys, and the multiple pulleys are respectively connected to a first belt conveyor, a second belt conveyor, a crushing structure, and a third belt conveyor. The multiple pulleys are also connected to a transmission belt.

[0009] Furthermore, the crushing structure includes symmetrically arranged crushing rollers, one end of which is connected to a meshing gear, and one of the meshing gears is connected to a pulley.

[0010] Furthermore, the air drying structure includes a large gear, which is driven by a second belt conveyor, a small gear, and a fan. The fan outlet is connected to a duct, a heating element is installed inside the duct, and an air outlet is opened at the lower end of the outer ring of the duct. The air outlet is connected to the interior of the insulation box.

[0011] Furthermore, the condensation structure includes a condenser, and a water collection tank is provided at the lower end of the condenser, with the bottom of the water collection tank inclined at an angle.

[0012] Furthermore, the first belt conveyor, the second belt conveyor, and the water collection tank are arranged alternately, and a ceramic filter plate is installed on one side of the water collection tank.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the sludge complete drying treatment device is reasonable and has the following advantages:

[0014] (1) By integrating the first belt conveyor, the second belt conveyor, the crushing mechanism, the belt conveyor heating structure and the air drying structure through the linkage transmission structure, a continuous processing closed loop is formed in the heat preservation box. At the same time, the power sharing reduces energy consumption and costs. The filter sludge is transported by the first belt conveyor and the second belt conveyor. The air drying structure implements hot air drying to achieve surface dehydration. Then, the crushing structure crushes the surface dried sludge to promote the uniform distribution of moisture in the inner and outer layers. Finally, the belt conveyor heating structure with vibration function and high temperature heating allows the crushed sludge particles to continuously rub, roll and transfer. The synergistic effect of heat conduction and mechanical motion is used to achieve full dehydration. Moreover, the multi-stage treatment process is designed with spatial superposition of processes. While ensuring treatment efficiency, the floor space is reduced, and the final product is fully dried sludge.

[0015] (2) The third belt conveyor is driven by the transmission structure, which synchronously drives the cam mechanism to rotate, and drives the vibrating block, push block and heating plate to move in coordination. The push block makes the broken sludge on the surface of the heating plate evenly distributed and mixed through the expansion and contraction of the vibrating elastic element. The diamond pattern on the surface of the heating plate increases the friction coefficient and promotes the sludge to fully contact the high temperature surface to achieve rapid full drying. It also accelerates the mixing and distribution of moisture in the inner and outer layers of sludge. At the same time, the push plate on the surface of the conveyor scrapes the dried sludge from the surface of the heating plate and discharges it during the sludge transfer process, thus achieving efficient full drying treatment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is an exploded view of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the first belt conveyor and the second belt conveyor in this invention;

[0019] Figure 4 This is a schematic diagram of the belt conveyor heating structure in this invention;

[0020] Figure 5 This is a schematic diagram of the bottom structure of the belt conveyor heating structure in this invention;

[0021] Figure 6 for Figure 4 Enlarged view of point A in the middle;

[0022] Figure 7 This is a schematic diagram of the transmission structure in this invention;

[0023] Figure 8 This is a schematic diagram of the fracture structure in this invention;

[0024] Figure 9 This is a partial structural diagram of the air-drying structure in this invention;

[0025] Figure 10 This is a schematic diagram of the water collection tank in this invention.

[0026] In the diagram: 1-base, 2-insulated box, 3-air drying structure, 31-large gear, 32-small gear, 33-fan, 34-air duct, 4-condensing structure, 5-condenser, 51-water collection tank, 6-first belt conveyor, 7-second belt conveyor, 8-crushing structure, 81-crushing roller, 82-meshing gear, 9-belt conveyor heating structure, 91-third belt conveyor, 911-push plate, 92-heating plate, 93-push block, 94-vibrating elastic element, 95-fixed block, 96-rotating roller, 97-vibrating block, 98-cam, 10-transmission structure, 101-drive motor, 102-pulley, 103-transmission belt. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figure 1-10The present invention provides a technical solution: a sludge drying treatment device, comprising a base 1 connected to an insulated box 2. Inside the insulated box 2, a first belt conveyor 6, a second belt conveyor 7, a crushing structure 8, and a belt conveyor heating structure 9 are arranged sequentially from high to low. All four components—the first belt conveyor 6, the second belt conveyor 7, the crushing structure 8, and the belt conveyor heating structure 9—are connected to a transmission structure 10. A drying structure 3 is located on one side of the insulated box 2, and a condensation structure 4 is located on the top of the insulated box 2. This sludge drying treatment device integrates the first belt conveyor 6, the second belt conveyor 7, the crushing mechanism, the belt conveyor heating structure 9, and the drying structure 3 through a linkage transmission structure 10. The drying structure 3 forms a continuous closed-loop processing system within the insulated box 2. Simultaneously, power sharing reduces energy consumption and costs. The filter press sludge is transported via the first belt conveyor 6 and the second belt conveyor 7, and then surface dewatered by hot air drying structure 3. Subsequently, the crushing structure 8 pulverizes the surface-dried sludge, promoting uniform moisture distribution between the inner and outer layers. Finally, the crushed sludge particles are continuously rubbed and tumbled by the belt conveyor heating structure 9, which features vibration and high-temperature heating. This synergistic effect of heat conduction and mechanical motion achieves complete dewatering. Furthermore, the multi-stage processing technology, through its spatially superimposed process design, ensures processing efficiency while reducing floor space, ultimately producing fully dried sludge.

[0029] The belt conveyor heating structure 9 includes a third belt conveyor 91 and a heating plate 92. The surface of the heating plate 92 has a diamond-shaped pattern. The outer ring of the belt of the third belt conveyor 91 is connected to multiple push plates 911 arranged at equal intervals. The push plates 911 slide in contact with the surface of the heating plate 92. The bottom of the heating plate 92 is connected to symmetrically arranged push blocks 93. The opposite ends of two push blocks 93 are connected to one end of equidistantly arranged vibrating elastic elements 94. The other end of the vibrating elastic elements 94 is connected to a fixed block 95. The fixed block 95 is connected to the base 1. Two push blocks 93 at one end of the heating plate 92 are connected to a vibrating block 97. The vibrating block 97 slides in contact with a through slot in the insulation box 2. The vibrating block 97 contacts a cam 98. The cam 98 is connected to the third belt conveyor... The conveyor 91 is connected to the transmission, and the third belt conveyor 91 is driven by the transmission structure 10. It synchronously drives the cam 98 mechanism to rotate, which in turn drives the vibrating block 97, the pusher block 93 and the heating plate 92 to move in coordination. The pusher block 93, through the extension and contraction of the vibrating elastic element 94, makes the broken sludge on the surface of the heating plate 92 evenly distributed and mixed. The diamond pattern on the surface of the heating plate 92 increases the friction coefficient, promotes full contact between the sludge and the high temperature surface, achieves rapid and complete drying, and accelerates the mixing and distribution of moisture between the inner and outer layers of sludge. At the same time, the pusher plate 911 on the surface of the conveyor scrapes the dried sludge from the surface of the heating plate 92 and discharges it during the sludge transfer process, achieving efficient and complete drying treatment. It should be noted that the pusher plate 991 will block the downward movement of the hot air from the drying structure 3.

[0030] The bottom of the heating plate 92 is rotatably connected to a plurality of equidistant rotating rollers 96, and the rotating rollers 96 are in contact with the surface of the base 1.

[0031] The transmission structure 10 includes a drive motor 101 and multiple pulleys 102. The drive motor 101 is connected to one of the pulleys 102. The multiple pulleys 102 are respectively connected to the first belt conveyor 6, the second belt conveyor 7, the crushing structure 8, and the third belt conveyor 91. The multiple pulleys 102 are connected to a transmission belt 103. The multiple pulleys are connected to multiple structures and are linked by the transmission belt 103, thereby sharing power to reduce energy consumption and lower costs.

[0032] The crushing structure 8 includes symmetrically arranged crushing rollers 81. One end of the crushing roller 81 is connected to a meshing gear 82. One of the meshing gears 82 is connected to a pulley 102. The crushing rollers 81 can crush the surface dried sludge, promote the uniform distribution of moisture in the inner and outer layers, and further improve the drying efficiency of the next step belt conveyor heating structure 9.

[0033] The air drying structure 3 includes a large gear 31, which is connected to the second belt conveyor 7. The large gear 31 is also connected to the small gear 32, which is connected to the fan 33. The air outlet of the fan 33 is connected to the air duct 34. A heating element is installed inside the air duct 34. An air outlet is opened at the lower end of the outer ring of the air duct 34 and is connected to the interior of the insulation box 2. The heating element can heat the air. At the same time, the second belt conveyor 7 is linked to the large gear 31 and shares power. The large gear 31 and the small gear 32 generate a differential speed, which accelerates the rotation of the fan 33 and brings in hot air to dry the sludge.

[0034] The condensing structure 4 includes a condenser 5, and a water collection tank 51 is set at the lower end of the condenser 5. The bottom of the water collection tank 51 is inclined at one corner. As the hot air dries the water-containing sludge, the moisture will be carried into the hot air. The condensation will be formed by the temperature difference between the condenser 5 and the hot air. The condensed water falls into the water collection tank 51 and can flow out from one position by tilting. At the same time, a protective cover is set at the upper end of the condenser 5 to ensure the stability of the external humidity.

[0035] The first belt conveyor 6, the second belt conveyor 7, and the water collection tank 51 are arranged alternately. A ceramic filter plate is installed on one side of the water collection tank 51. The ceramic filter plate can filter out tiny impurities to ensure that the condenser 5 is protected.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A sludge full-drying treatment device comprising a base (1), characterized in that: The base (1) is connected with the heat preservation box body (2), first belt conveyor (6), second belt conveyor (7), crushing structure (8) and belt conveyor heating structure (9) are sequentially arranged from high to low in the heat preservation box body (2), the first belt conveyor (6), second belt conveyor (7), crushing structure (8) and belt conveyor heating structure (9) are all in driving connection with transmission structure (10), the heat preservation box body (2) side is provided with air drying structure (3), the heat preservation box body (2) top is provided with condensation structure (4); The belt conveyor heating structure (9) includes third belt conveyor (91) and heating plate (92), the surface of the heating plate (92) is provided with diamond pattern, the outer ring of the third belt conveyor (91) is connected with multiple push plates (911) arranged at equal intervals, the push plate (911) is in sliding contact with the surface of the heating plate (92), the bottom of the heating plate (92) is connected with push blocks (93) arranged symmetrically, the opposite ends of the two push blocks (93) are connected with one end of the vibration elastic element (94) arranged at equal intervals, the other end of the vibration elastic element (94) is connected with the fixed block (95), the fixed block (95) is connected with the base (1), the two push blocks (93) at one end of the heating plate (92) are connected with the vibration block (97), the vibration block (97) is in sliding contact with the through groove of the heat preservation box body (2), the vibration block (97) is in contact with the cam (98), and the cam (98) is in driving connection with the third belt conveyor (91).

2. A full-drying sludge treatment apparatus according to claim 1, characterized in that: The bottom of the heating plate (92) is rotatably connected with multiple rotation rollers (96) arranged at equal intervals, and the rotation rollers (96) are in contact with the surface of the base (1).

3. A full-drying sludge treatment apparatus according to claim 1, characterized in that: The transmission structure (10) includes a driving motor (101) and multiple belt pulleys (102), the driving motor (101) is in driving connection with one of the belt pulleys (102), the multiple belt pulleys (102) are respectively in driving connection with the first belt conveyor (6), the second belt conveyor (7), the crushing structure (8) and the third belt conveyor (91), and the multiple belt pulleys (102) are in driving connection with a transmission belt (103).

4. A full-dry sludge treatment apparatus according to claim 3, characterized in that: The crushing structure (8) includes crushing rollers (81) arranged symmetrically, one end of the crushing roller (81) is in driving connection with the meshing gear (82), and one of the meshing gears (82) is in driving connection with one of the belt pulleys (102).

5. A full-drying sludge treatment apparatus according to claim 1, characterized in that: The air drying structure (3) includes a large gear (31), the large gear (31) is in driving connection with the second belt conveyor (7), the large gear (31) is in driving connection with a pinion (32), the pinion (32) is in driving connection with a fan (33), the fan (33) is connected with a wind pipe (34) at the air outlet end, the wind pipe (34) is provided with a heating element in the inside, and the outer ring of the wind pipe (34) is provided with an air outlet opening at the lower end, and the air outlet opening is in communication with the inside of the heat preservation box body (2).

6. A full-drying sludge treatment apparatus according to claim 1, characterized in that: The condensation structure (4) includes a condenser (5), and the lower end of the condenser (5) is provided with a water collecting tank (51), and the bottom of the water collecting tank (51) is inclined to an angle.

7. A full-drying sludge treatment apparatus according to claim 1, characterized in that: The first belt conveyor (6), the second belt conveyor (7) and the water collecting tank (51) are staggered, and the water collecting tank (51) is provided with a ceramic filter plate on one side.

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