A deep drying system for co-treatment of organic solid waste

Abstract

The invention relates to the technical field of sludge treatment, and specifically discloses a deep drying system for coordinated treatment of organic solid waste, comprising a base and a drying box fixedly installed on the top of the base and divided from left to right by two partitions into a paving area, a primary drying area and a secondary drying raking and spreading area. The sludge undergoing secondary drying is raked and spread by synchronously moving left and right with a left rake claw and a right rake claw. The raking and spreading action can effectively break up lumps in the sludge, increase the surface area of ​​sludge particles, and make it easier for moisture inside the sludge to evaporate. Combining the raking and breaking action with a secondary thermal drying process can further improve the drying efficiency of the sludge. At the same time, because the left rake claw and the right rake claw are staggered and synchronously reciprocated, it can be ensured that the sludge is comprehensively and evenly raked and spread in the drying box, thereby achieving uniform deep drying of the sludge.

Description

Technical Field

[0001] The present invention relates to the technical field of sludge treatment, and more specifically, to an organic solid waste coordinated treatment deep drying system. Background Art

[0002] Organic sludge is solid waste generated during sewage treatment, with organic matter as the main component. The main characteristics of this type of sludge include high organic content, easy decay and odor, fine particles, low specific gravity, high water content and difficulty in dehydration, and often contains plant nutrients, parasite eggs, pathogenic microorganisms and heavy metal ions.

[0003] Organic solid waste collaborative treatment refers to treating organic sludge mixed with food waste or agricultural waste through a series of processes to obtain a dry and easier-to-manage product. The organic sludge treatment process is a process that combines a series of unit processes to achieve the purpose of "reduction, stabilization, and harmlessness" of sludge. At present, sludge treatment processes generally include: mechanical dehydration, chemical conditioning + plate and frame filter press, anaerobic fermentation, aerobic fermentation and thermal drying. Before entering the thermal drying step, the sludge will be mechanically dehydrated by a centrifuge, and then the sludge will be introduced into the drying box, and the sludge will be heated and dried by hot air. However, this drying method still has certain defects:

[0004] Firstly, since mechanical dehydration precedes thermal drying, that is, the sludge will be introduced into the drying box as a whole after mechanical dehydration, and the sludge is not evenly spread on the surface of the conveyor belt when entering the drying box, when the sludge is not evenly spread on the conveyor belt, it will cause the sludge to accumulate thicker in some areas and thinner in some areas. The areas with thicker accumulation require longer time and more heat to be dried, thereby reducing the overall drying efficiency. Due to the reduced drying efficiency, in order to achieve the expected drying effect, it is necessary to extend the drying time or increase the temperature and flow rate of the hot air, which leads to increased energy consumption.

[0005] Secondly, there will be agglomeration during the hot air drying process, which will make it difficult for the water inside the sludge to evaporate, resulting in a higher moisture content inside the agglomerate, while the outside is relatively dry. This uneven drying effect will affect the quality of the sludge, and because the sludge is not evenly spread on the conveyor belt surface when entering the drying box, the agglomeration phenomenon will be further aggravated. Summary of the invention

[0006] The present invention provides an organic solid waste collaborative treatment deep drying system, which solves the technical problem in the prior art that the sludge is not evenly spread on the conveyor belt surface when entering the drying box before thermal drying due to mechanical dehydration, resulting in reduced drying efficiency.

[0007] The present invention provides a deep drying system for coordinated treatment of organic solid waste, comprising a base and a drying box fixedly installed on the top of the base and divided from left to right by two partitions into a paving area, a primary drying area and a secondary drying raking area, a chain plate conveyor belt with a plurality of fine mesh holes on the surface is arranged between the front and rear inner walls of the drying box, a rolling and paving mechanism, a multi-stage heat drying mechanism, a reciprocating raking mechanism and a reciprocating driving mechanism are arranged between the chain plate conveyor belt and the drying box, the multi-stage heat drying mechanism comprises a primary heat drying component, a secondary heat drying component and a filter cleaning component, and the reciprocating raking mechanism comprises a raking component.

[0008] The raking and spreading assembly includes two slide grooves which are opened on the inner wall of the top of the drying box and are symmetrical in front and back, and sliders which are slidably connected in the two slide grooves respectively. A sliding rod and a right reciprocating rod are fixedly installed at the bottom of the two sliders respectively. A moving rod is fixedly installed at the bottom of the sliding rod and the right reciprocating rod. A left raking claw and a right raking claw which are staggered front and back are fixedly installed at the bottom of the two moving rods respectively.

[0009] The chain conveyor belt transports the sludge in the flattening area to the right. First, the reciprocating drive mechanism drives the rolling and flattening mechanism to roll and flatten the sludge on the top of the chain conveyor belt. Then, the sludge enters the primary drying area and is subjected to primary heat drying by the primary heat drying component and enters the secondary drying and raking area. Then, the secondary heat drying component performs secondary heat drying on the sludge. At the same time, the right reciprocating rod reciprocates through the meshing component to drive the sliding rod to reciprocate, so that the right rake claw and the left rake claw reciprocate to rake and disperse the sludge.

[0010] Furthermore, the rolling and paving mechanism includes a left reciprocating rod and a paving plate fixedly installed at the bottom end of the left reciprocating rod and located on the top of the chain conveyor belt, and the paving plate has material guiding inclined surfaces on the left and right sides of the top of the paving plate, and material blocking inclined surfaces on the left and right sides of the lower end of the paving plate.

[0011] Furthermore, the first-stage heat drying component includes two installation sleeves which are respectively fixedly installed on one side near the lower end of the two partitions and are symmetrical on the left and right. A square tube is installed between the two installation sleeves. A plurality of nozzles are fixedly installed on the top of the square tube. An air inlet pipe which is fixedly installed on the front side of the square tube and runs through the drying box is fixedly installed.

[0012] Furthermore, the secondary heat drying assembly includes a pipe rack 1 and a pipe rack 2 fixedly mounted on the top inner wall of the drying box and located in the secondary drying raking area, an L-shaped pipe is installed between the pipe rack 1 and the pipe rack 2, and a plurality of nozzles 2 are fixedly mounted at the bottom of the L-shaped pipe.

[0013] Furthermore, an exhaust fan is fixedly installed on the rear side of the drying box, an exhaust pipe is fixedly connected between the exhaust fan and the primary drying area, an L-shaped pipe is fixedly penetrated through the inner wall of the rear side of the drying box and is fixedly connected to the exhaust fan, and a filter is provided at the connecting end of the exhaust pipe and the primary drying area.

[0014] Furthermore, the reciprocating raking mechanism also includes a meshing assembly, which includes front teeth and rear teeth fixedly mounted on the right reciprocating rod and the side close to the sliding rod, respectively, a rotating shaft is rotatably mounted on the top inner wall of the drying box, and a gear meshing with the front teeth and the rear teeth is fixedly mounted on the bottom end of the rotating shaft.

[0015] Furthermore, the reciprocating drive mechanism comprises a disc rotatably mounted on the inner wall of the top of the drying box and a driving rod fixedly mounted on the bottom of the disc, and a sliding frame is slidably connected to the outer side of the driving rod.

[0016] Furthermore, the left reciprocating rod and the right reciprocating rod are fixedly connected to the left and right sides of the sliding frame respectively, and the left reciprocating rod and the right reciprocating rod slide through the partitions on the left and right sides respectively. A driving motor is fixedly installed on the top of the drying box, and the output shaft of the driving motor slides through the top inner wall of the drying box and is fixedly connected to the disc.

[0017] Furthermore, the filter cleaning assembly includes a mounting rod fixedly mounted on the rear side of the slide frame and a cleaning brush fixedly mounted on the rear side of the mounting rod.

[0018] Furthermore, two baffles are symmetrically arranged on the top of the chain conveyor belt, a feed port is opened on the top of the drying box, a discharge port is opened on the right side of the drying box, and a drainage pipe connected to the paving area is fixedly installed on the front side of the drying box.

[0019] The beneficial effects of the present invention are:

[0020] 1. The reciprocating motion of the left reciprocating rod drives the paving plate to move left and right, which can not only effectively squeeze out the moisture inside the sludge through the pressure of paving and rolling, but also make the squeezed moisture penetrate to the bottom of the paving area through the mesh holes on the surface of the chain conveyor belt to achieve the initial rolling and drying of the sludge, but also can evenly spread the sludge on the top of the chain conveyor belt, avoiding the problem of low treatment efficiency caused by uneven sludge accumulation. This dynamic paving method ensures that the sludge can form a uniform thin layer on the conveyor belt, ensures that the sludge layer has a uniform thickness, is conducive to the penetration and drying of hot air, and provides good conditions for subsequent hot drying.

[0021] 2. The hot air is sprayed evenly from bottom to top through the nozzle and fully contacts with the sludge surface. The flow of hot air from bottom to top helps to form a strong convection effect and forms good heat exchange conditions with the sludge surface. At the same time, this heat exchange not only occurs on the sludge surface, but also gradually penetrates into the sludge through the heat conduction inside the sludge, further promoting the evaporation of water, thereby not only achieving uniform drying of the sludge and reducing the water content of the sludge, but also providing conditions for subsequent secondary thermal drying and raking of sludge, and greatly improving the drying efficiency.

[0022] 3. After filtering and drying the hot air that continuously rises in the primary drying area through the exhaust pipe, it is sprayed from top to bottom through a number of nozzles to perform a second thermal drying on the sludge. This not only achieves deep drying of the sludge, but also enables secondary utilization of the hot air generated by the primary thermal drying. While deeply drying the sludge, it improves the energy utilization rate of the device and reduces the cost of use.

[0023] 4. The left and right rake claws move back and forth synchronously to rake and disperse the sludge undergoing secondary drying. The raking and dispersing action can effectively break up the lumps in the sludge, increase the surface area of ​​the sludge particles, and make it easier for the water inside the sludge to evaporate. Combining the raking and dispersing action with the secondary thermal drying process can further improve the sludge drying efficiency. At the same time, since the left and right rake claws are staggered and move back and forth synchronously, it can ensure that the sludge is comprehensively and evenly raked and dispersed in the drying box, thereby achieving uniform deep drying of the sludge.

[0024] 5. Through the multi-stage uniform drying operation of rolling and squeezing water drying, primary hot drying, secondary hot drying and raking, the moisture in the sludge is gradually removed at different drying stages, and each stage of drying is optimized according to the different states and moisture content of the sludge, ultimately achieving deep drying of the sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a partial three-dimensional structural sectional view of the drying box of the present invention.

[0026] Figure 2 It is a three-dimensional structural schematic diagram of the present invention.

[0027] Figure 3 It is a three-dimensional structural schematic diagram of the reciprocating raking and spreading mechanism, the disc, the driving motor, the left reciprocating rod and the paving plate part of the present invention.

[0028] Figure 4 It is a three-dimensional structural schematic diagram of the disc, driving rod, sliding frame, left reciprocating rod, right reciprocating rod and cleaning brush part of the present invention.

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of the filter screen, L-shaped tube, sliding frame, rear teeth, right rake claw and left rake claw of the present invention.

[0030] Figure 6 It is a partial three-dimensional structural schematic diagram of the moving rod, gear, forward reciprocating rod and rear reciprocating rod of the present invention.

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the right rake claw, the left rake claw, the moving rod, the front teeth and the rear teeth of the present invention.

[0032] Figure 8It is a schematic diagram of the three-dimensional structure of the filter screen, exhaust fan, air inlet pipe, square tube and sliding frame of the present invention.

[0033] In the figure: 1. base; 2. drying box; 3. partition; 4. rolling and paving mechanism; 5. multi-stage hot drying mechanism; 6. reciprocating raking mechanism; 7. reciprocating drive mechanism; 8. chain conveyor belt; 9. baffle; 10. feed port; 11. discharge port; 12. drain pipe; 401. left reciprocating rod; 402. paving plate; 501. first-stage hot drying assembly; 502. second-stage hot drying assembly; 503. filter cleaning assembly; 5011. installation sleeve; 5012. square tube; 5013. nozzle 1; 5014. air inlet pipe; 5021. pipe rack 1; 5022. pipe rack 2; 5023. L-shaped pipe; 5024, nozzle 2; 5025, exhaust pipe; 5026, exhaust fan; 5027, filter; 5031, mounting rod; 5032, cleaning brush; 601, raking assembly; 602, meshing assembly; 6011, slide; 6012, slider; 6013, sliding rod; 6014, right reciprocating rod; 6015, moving rod; 6016, right rake claw; 6017, left rake claw; 6021, rotating shaft; 6022, gear; 6023, front teeth; 6024, rear teeth; 701, disc; 702, drive rod; 703, slide frame; 704, drive motor. DETAILED DESCRIPTION

[0034] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is to enable those skilled in the art to better understand and implement the subject matter described herein. The functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the present specification. Various examples may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0035] See also Figure 1 , Figure 3 and Figure 8In this embodiment, a deep drying system for coordinated treatment of organic solid waste is proposed, including a base 1 and a drying box 2 fixedly installed on the top of the base 1 and divided from left to right by two partitions 3 into a paving area, a primary drying area and a secondary drying raking area. A chain plate conveyor belt 8 with a plurality of fine mesh holes on the surface is arranged between the front and rear inner walls of the drying box 2. A rolling and paving mechanism 4, a multi-stage hot drying mechanism 5, a reciprocating raking mechanism 6 and a reciprocating driving mechanism 7 are arranged between the chain plate conveyor belt 8 and the drying box 2. The multi-stage heat drying mechanism 5 includes a primary heat drying component 501, a secondary heat drying component 502 and a filter cleaning component 503, and the reciprocating raking and spreading mechanism 6 includes a raking and spreading component 601. The zoning design of dividing the drying box 2 into a paving area, a primary drying area and a secondary drying and raking and spreading area can enable the sludge to undergo multi-stage drying treatment, thereby improving the drying efficiency and quality. By opening a number of fine mesh holes on the surface of the chain conveyor belt 8, it is beneficial for hot air to penetrate the sludge layer, promote the exchange of heat and moisture, and further improve the drying effect.

[0036] See also Figure 1 and Figure 2 Two front-to-back symmetrical baffles 9 are arranged on the top of the chain conveyor belt 8, and the baffles 9 are installed on the inner wall of the drying box 2. A feed port 10 is opened on the top of the drying box 2, and a discharge port 11 is opened on the right side of the drying box 2. A drainage pipe 12 connected to the paving area is fixedly installed on the front side of the drying box 2.

[0037] See also Figure 1 , Figure 3 and Figure 4 The reciprocating drive mechanism 7 includes a disc 701 rotatably mounted on the top inner wall of the drying box 2 and a driving rod 702 fixedly mounted on the bottom of the disc 701. A sliding frame 703 is slidably connected to the outer side of the driving rod 702. A driving motor 704 is fixedly mounted on the top of the drying box 2. The output shaft of the driving motor 704 slides through the top inner wall of the drying box 2 and is fixedly connected to the disc 701.

[0038] See also Figure 1 , Figure 3 and Figure 4 The rolling and paving mechanism 4 includes a left reciprocating rod 401 fixedly mounted on the left side of the sliding frame 703 and slidingly passing through the left partition 3, and the raking and spreading assembly 601 includes a right reciprocating rod 6014 fixedly mounted on the right side of the sliding frame 703 and slidingly passing through the right partition 3.

[0039] During specific use, the sludge to be dried mixed with solid waste is introduced into the drying box 2 through the feed port 10 and falls into the flattened area. Then, the sludge is transported to the right through the chain conveyor belt 8. During the transportation process, the baffle 9 can limit the sludge to ensure that the sludge always remains on the chain conveyor belt 8 to prevent the sludge from falling or overflowing during the transportation process and causing pollution to the inside of the drying box 2. At the same time, the drive motor 704 is started, and the output shaft of the drive motor 704 drives the disc 701 to rotate. The rotation of the disc 701 drives the slide frame 703 through the drive rod 702 to drive the left reciprocating rod 401 and the right reciprocating rod 6014 to move back and forth left and right.

[0040] See also Figure 1 , Figure 3 and Figure 4 The rolling and paving mechanism 4 also includes a paving plate 402 fixedly mounted on the bottom end of the left reciprocating rod 401 and located on the top of the chain conveyor belt 8. The top of the paving plate 402 is provided with material guiding inclined surfaces on the left and right sides, and the lower end of the paving plate 402 is provided with material blocking inclined surfaces on the left and right sides. The material blocking inclined surfaces can effectively prevent the sludge that is paved too high, and the material guiding inclined surfaces guide the sludge that is higher than the material blocking surface to slide back to the top of the chain conveyor belt 8, thereby realizing automatic circulation treatment of the sludge and avoiding the trouble of sludge adhering to the paving plate 402, which requires manual intervention and shutdown for cleaning.

[0041] When in use, the left reciprocating rod 401 reciprocates to drive the paving plate 402 to reciprocate left and right synchronously. During the reciprocating movement of the paving plate 402, the sludge transported to the right from the top of the chain conveyor belt 8 is rolled and paved on the top of the chain conveyor belt 8. At the same time, when the sludge is rolled, the moisture inside the sludge can be squeezed out. The squeezed moisture passes through the mesh holes on the surface of the chain conveyor belt 8 and falls to the bottom of the paving area, and then is discharged through the drain pipe 12. The sludge that is higher than the material blocking inclined surface when paved will fall on the material guiding inclined surface, and then slide back to the top of the chain conveyor belt 8 from the material guiding inclined surface, and so on and so forth, thereby realizing the paving and squeezing operation of the sludge. The reciprocating motion of the left reciprocating rod 401 drives the paving plate 402 to move left and right, which can not only effectively squeeze out the moisture inside the sludge through the pressure of paving and rolling, but also make the squeezed moisture penetrate to the bottom of the paving area through the mesh holes on the surface of the chain conveyor belt 8 to achieve the initial rolling and drying of the sludge, and also evenly spread the sludge on the top of the chain conveyor belt 8, avoiding the problem of low treatment efficiency caused by uneven sludge accumulation. This dynamic paving method ensures that the sludge can form a uniform thin layer on the chain conveyor belt 8, ensures that the sludge layer has a uniform thickness, is conducive to the penetration and drying of hot air, and provides good conditions for subsequent thermal drying.

[0042] See also Figure 1 , Figure 5 and Figure 8The first-level heat drying component 501 includes two installation sleeves 5011 fixedly installed on one side near the lower end of the two partitions 3 and symmetrically on the left and right. A square tube 5012 is installed between the two installation sleeves 5011. A plurality of nozzles 5013 are fixedly installed on the top of the square tube 5012. An air inlet pipe 5014 that is fixedly installed on the front side of the square tube 5012 and passes through the drying box 2 is fixedly installed. The air inlet pipe 5014 is connected to an external heat source.

[0043] See also Figure 5 and Figure 8 The secondary heat drying component 502 includes a pipe rack 1 5021 and a pipe rack 2 5022 fixedly installed on the top inner wall of the drying box 2 and located in the secondary drying raking area, an L-shaped pipe 5023 is installed between the pipe rack 1 5021 and the pipe rack 2 5022, and a plurality of nozzles 2 5024 are fixedly installed at the bottom of the L-shaped pipe 5023.

[0044] See also Figure 5 and Figure 8 An exhaust fan 5026 is fixedly installed on the rear side of the drying box 2, and an exhaust pipe 5025 is fixedly connected between the exhaust fan 5026 and the primary drying area. The L-shaped pipe 5023 is fixedly penetrated through the inner wall of the rear side of the drying box 2 and is fixedly connected to the exhaust fan 5026. A filter 5027 is provided at the connecting end of the exhaust pipe 5025 and the primary drying area, and a desiccant is provided in the exhaust pipe 5025 to dry the wet air.

[0045] During specific use, during the sludge leveling process, hot air is introduced into the square tube 5012 through the air inlet pipe 5014 in advance and sprayed from bottom to top into the primary drying area through a plurality of nozzles 5013 to heat the primary drying area. When the leveled sludge enters the primary drying area to the right, the high temperature in the primary drying area will quickly evaporate the moisture in the sludge. At the same time, since the hot air is evenly sprayed from bottom to top through the nozzle 5013, the flow from bottom to top helps to form a strong convection effect, forming good heat exchange conditions with the sludge surface. At the same time, this heat exchange not only occurs on the sludge surface, but also gradually penetrates into the sludge through the heat conduction effect inside the sludge, further promoting the evaporation of moisture, thereby not only achieving uniform drying of the sludge, reducing the moisture content of the sludge, providing conditions for subsequent secondary thermal drying and raking of the sludge, but also greatly improving the drying efficiency.

[0046] The sludge after primary thermal drying continues to be conveyed to the right by the chain conveyor belt 8 and enters the secondary drying and raking area. At the same time, the hot air in the primary drying area continues to rise, and the exhaust fan 5026 is started to extract the hot air that continues to rise in the primary drying area through the exhaust pipe 5025. The hot air entering the exhaust pipe 5025 will first be filtered out of flying dust by the filter 5027 and dried by the desiccant, and then enter the L-shaped tube 5023 and be sprayed from top to bottom through a plurality of nozzles 5024, so as to perform a second thermal drying on the sludge, thereby not only achieving deep drying of the sludge, but also being able to secondary utilize the hot air generated by the primary thermal drying, thereby improving the energy utilization rate of the device and reducing the use cost while performing deep drying of the sludge.

[0047] See also Figure 1 , Figure 3 , Figure 6 and Figure 7 The raking and spreading component 601 includes two slide grooves 6011 which are opened on the inner wall of the top of the drying box 2 and are symmetrical in the front and back, and sliders 6012 which are slidably connected to the two slide grooves 6011 respectively. A sliding rod 6013 is fixedly installed at the bottom of the rear slider 6012, and a right reciprocating rod 6014 is fixedly installed at the bottom of the front slider 6012. A moving rod 6015 is fixedly installed at the bottom of the sliding rod 6013 and the right reciprocating rod 6014. The bottoms of the two moving rods 6015 are respectively fixedly installed with a left rake claw 6017 and a right rake claw 6016 which are staggered front and back.

[0048] See also Figure 1 , Figure 3 , Figure 6 and Figure 7 The reciprocating raking mechanism 6 also includes a meshing assembly 602, which includes a front tooth 6023 and a rear tooth 6024 respectively fixedly mounted on the right reciprocating rod 6014 and the side close to the sliding rod 6013. A rotating shaft 6021 is rotatably mounted on the inner wall of the top of the drying box 2, and a gear 6022 meshing with the front tooth 6023 and the rear tooth 6024 is fixedly mounted on the bottom end of the rotating shaft 6021.

[0049] See also Figure 8 The filter cleaning assembly 503 includes a mounting rod 5031 fixedly mounted on the rear side of the slide frame 703 and a cleaning brush 5032 fixedly mounted on the rear side of the mounting rod 5031 .

[0050] During specific use, the right reciprocating rod 6014 will drive the right rake claw 6016 to move back and forth left and right through the right moving rod 6015 during the reciprocating movement, so as to rake and disperse the secondary dried sludge, and at the same time, it will drive the front teeth 6023 to mesh with the gear 6022, so that the gear 6022 rotates and meshes with the rear teeth 6024, driving the sliding rod 6013 and the right reciprocating rod 6014 to move back and forth left and right synchronously, so that the left rake claw 6017 also moves back and forth left and right, and then the left rake claw 6017 and the right rake claw 6016 move back and forth left and right synchronously, so as to rake and disperse the secondary dried sludge, and the raking and dispersing action can be effective. The lumps in the sludge can be effectively broken up, the surface area of ​​the sludge particles can be increased, and the water inside the sludge can be more easily evaporated. The raking and breaking action is combined with the secondary thermal drying process to further improve the drying efficiency of the sludge. At the same time, since the left rake claw 6017 and the right rake claw 6016 are staggered and move back and forth synchronously, it can ensure that the sludge is comprehensively and evenly raked and scattered in the drying box 2, thereby achieving uniform deep drying of the sludge. Finally, the deeply dried sludge is discharged through the discharge port 11. The sludge after the secondary drying treatment can be used as fuel for power generation or heat energy utilization, and can also be used as organic fertilizer or soil conditioner for agricultural production.

[0051] During the movement, the sliding frame 703 will synchronously drive the cleaning brush 5032 to move back and forth through the mounting rod 5031, so that the cleaning brush 5032 can reciprocate and clean the surface of the filter 5027, thereby avoiding the filter 5027 being blocked during the continuous working process, resulting in the problem of reduced secondary heat drying efficiency.

[0052] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. An organic solid waste collaborative treatment deep drying system, characterized in that: include: A base (1) and a drying box (2) fixedly mounted on the top of the base (1) and divided from left to right by two partitions (3) into a paving area, a primary drying area and a secondary drying raking area; a chain plate conveyor belt (8) having a plurality of fine mesh holes on its surface is arranged between the front and rear inner walls of the drying box (2); a rolling and paving mechanism (4), a multi-stage heat drying mechanism (5), a reciprocating raking mechanism (6) and a reciprocating driving mechanism (7) are arranged between the chain plate conveyor belt (8) and the drying box (2); the multi-stage heat drying mechanism (5) comprises a primary heat drying component (501), a secondary heat drying component (502) and a filter cleaning component (503); and the reciprocating raking mechanism (6) comprises a raking component (601); The raking and spreading assembly (601) comprises two slide grooves (6011) which are symmetrically arranged on the top inner wall of the drying box (2) and slide blocks (6012) which are respectively slidably connected to the two slide grooves (6011); a sliding rod (6013) and a right reciprocating rod (6014) are respectively fixedly installed at the bottom of the two slide blocks (6012); a moving rod (6015) is fixedly installed at the bottom of the sliding rod (6013) and the right reciprocating rod (6014); and a left rake claw (6017) and a right rake claw (6016) which are arranged staggered in front of and behind each other are respectively fixedly installed at the bottom of the two moving rods (6015); The chain conveyor belt (8) conveys the sludge in the flattening area to the right. First, the reciprocating drive mechanism (7) drives the rolling and flattening mechanism (4) to roll and flatten the sludge on the top of the chain conveyor belt (8). Then, the sludge enters the primary drying area and is subjected to primary thermal drying by the primary thermal drying component (501) and enters the secondary drying and raking area. Then, the secondary thermal drying component (502) performs secondary thermal drying on the sludge. At the same time, the right reciprocating rod (6014) reciprocates to drive the sliding rod (6013) to reciprocate through the meshing component (602), so that the right rake claw (6016) and the left rake claw (6017) reciprocate to rake and spread the sludge.

2. The organic solid waste collaborative treatment deep drying system according to claim 1 is characterized in that: The rolling and paving mechanism (4) comprises a left reciprocating rod (401) and a paving plate (402) fixedly mounted at the bottom end of the left reciprocating rod (401) and located at the top of the chain conveyor belt (8), wherein the paving plate (402) is provided with material guiding inclined surfaces on the left and right sides of the top, and the paving plate (402) is provided with material blocking inclined surfaces on the left and right sides of the bottom end.

3. The organic solid waste collaborative treatment deep drying system according to claim 1 is characterized in that: The first-stage heat drying component (501) comprises two installation sleeves (5011) respectively fixedly mounted on one side near the lower ends of the two partitions (3) and symmetrically mounted on the left and right, a square tube (5012) being mounted between the two installation sleeves (5011), a plurality of nozzles (5013) being fixedly mounted on the top of the square tube (5012), and an air inlet pipe (5014) that is fixedly mounted on the front side of the square tube (5012) and that runs through the drying box (2).

4. The organic solid waste collaborative treatment deep drying system according to claim 1 is characterized in that: The secondary heat drying component (502) comprises a pipe rack 1 (5021) and a pipe rack 2 (5022) fixedly mounted on the top inner wall of the drying box (2) and located in the secondary drying raking area, an L-shaped pipe (5023) being installed between the pipe rack 1 (5021) and the pipe rack 2 (5022), and a plurality of nozzles 2 (5024) being fixedly mounted on the bottom of the L-shaped pipe (5023).

5. The organic solid waste collaborative treatment deep drying system according to claim 1 is characterized in that: An exhaust fan (5026) is fixedly installed on the rear side of the drying box (2); an exhaust pipe (5025) is fixedly connected between the exhaust fan (5026) and the primary drying area; an L-shaped pipe (5023) is fixedly passed through the inner wall of the rear side of the drying box (2) and is fixedly connected to the exhaust fan (5026); and a filter screen (5027) is provided at the connection end between the exhaust pipe (5025) and the primary drying area.

6. The organic solid waste collaborative treatment deep drying system according to claim 2 is characterized in that: The reciprocating raking mechanism (6) further comprises a meshing assembly (602), the meshing assembly (602) comprising a front tooth (6023) and a rear tooth (6024) respectively fixedly mounted on the right reciprocating rod (6014) and on a side close to the sliding rod (6013); a rotating shaft (6021) is rotatably mounted on the inner wall of the top of the drying box (2); a gear (6022) meshing with the front tooth (6023) and the rear tooth (6024) is fixedly mounted on the bottom end of the rotating shaft (6021).

7. The organic solid waste collaborative treatment deep drying system according to claim 6 is characterized in that: The reciprocating drive mechanism (7) comprises a disc (701) rotatably mounted on the top inner wall of the drying box (2) and a driving rod (702) fixedly mounted on the bottom of the disc (701), and a sliding frame (703) is slidably connected to the outer side of the driving rod (702).

8. The organic solid waste collaborative treatment deep drying system according to claim 7 is characterized in that: The left reciprocating rod (401) and the right reciprocating rod (6014) are respectively fixedly connected to the left and right sides of the sliding frame (703), and the left reciprocating rod (401) and the right reciprocating rod (6014) respectively slide through the partitions (3) on the left and right sides. A driving motor (704) is fixedly installed on the top of the drying box (2), and the output shaft of the driving motor (704) slides through the top inner wall of the drying box (2) and is fixedly connected to the disc (701).

9. The organic solid waste collaborative treatment deep drying system according to claim 7, characterized in that: The filter screen cleaning assembly (503) comprises a mounting rod (5031) fixedly mounted on the rear side of the slide frame (703) and a cleaning brush (5032) fixedly mounted on the rear side of the mounting rod (5031).

10. The organic solid waste collaborative treatment deep drying system according to claim 1, characterized in that: Two baffles (9) are arranged symmetrically at the top of the chain conveyor belt (8), a feed inlet (10) is provided at the top of the drying box (2), a discharge outlet (11) is provided at the right side of the drying box (2), and a drainage pipe (12) connected to the paving area is fixedly installed at the front side of the drying box (2).

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