Quick drying device for wet garbage pretreatment solid residues
By using drying chamber, micropore fermentation cover film and mechanical stirring mechanism in the wet waste pretreatment solid residue drying device, efficient drying and odor treatment is achieved, and the low drying efficiency and odor treatment of existing devices are solved. High cost issue.
Patent Information
- Application Number
- CN202420195578.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-26
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-01-26
AI Technical Summary
The existing wet waste pretreatment solid slag drying device has low drying efficiency and generates a large amount of odor, which requires special equipment to be treated, which increases the treatment cost.
A rapid drying device including a drying chamber, a microporous fermentation cover membrane assembly and a mechanical stirring mechanism was designed to achieve uniform drying through heating and stirring, and use the microporous fermentation cover membrane to retain odor and reduce odor and volatiles. Emissions of organic compounds.
It improves drying efficiency, reduces the cost of odor treatment, and does not form agglomeration during the drying process, ensuring uniform drying and breathability of the material.
Smart Images
Figure CN222211072U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a rapid drying device for wet garbage pre-treatment solid residue, belonging to the technical field of organic solid waste drying. Background Art
[0002] The commonly used treatment process for food waste is "pretreatment + anaerobic digestion". Before entering the anaerobic digestion system, food waste generally needs to be pre-treated by sorting, pulping, solid-liquid separation, and heating for oil extraction. In the pretreatment process, inorganic solid residues such as sorted debris and waste residues after solid-liquid separation will be produced. The moisture content of these inorganic solid residues is usually around 65%. They will be sent to terminal disposal sites such as landfills and incineration plants for final disposal.
[0003] However, terminal disposal sites such as landfills and incineration plants usually require that the moisture content of incoming solid waste be less than 60%. Since the moisture content of solid residues from pre-treatment of food waste often cannot meet this requirement, one way is to meet the requirement by increasing the squeezing force of the solid-liquid separation equipment on the material. The spiral solid-liquid separation device reduces the spacing between the rear spiral blades or increases the pre-tightening pressure of the discharge plate to reduce the moisture content of the solid residue after solid-liquid separation, but the device is not suitable for sorting out inorganic solid residues. The moisture content reduction. Another method uses a through-type drying device to heat and dry the solid residue during transportation, but due to the cohesion of the material, the drying is uneven and the drying time is long, so the drying efficiency is not high. In particular, the inorganic solid residue will produce a lot of odor during drying, and a special air collection fan is required to introduce the odor into the special odor treatment equipment for treatment, thereby increasing the cost of wet garbage treatment. Summary of the invention
[0004] The utility model aims to provide a rapid drying device for wet garbage pretreatment solid residue, which has stable drying performance, can improve drying efficiency, is easy to maintain, and does not require special equipment to handle odor generated during the drying process.
[0005] The technical solution of the utility model to achieve the above-mentioned purpose is: a rapid drying device for pre-processing solid residue of wet garbage, characterized by: comprising a drying bin for accommodating materials, a microporous fermentation covering membrane component for intercepting odor and allowing moisture to pass through, and a mechanical stirring mechanism for stirring and pushing the materials;
[0006] The drying bin comprises a bin body and end plates installed at both ends of the bin body, a feed port is provided on the top of the front side of the bin body, a discharge port is provided on the bottom of the rear side of the bin body, and electric valve plates are provided at the feed port and the discharge port of the bin body, a plurality of heating interfaces are arranged at the lower part of the side plates on the front and rear sides of the bin body, an exhaust port is also provided on the top of the bin body, and a connection seat for fixing the microporous fermentation covering membrane assembly is provided around the exhaust port of the bin body;
[0007] The microporous fermentation covering membrane assembly comprises a microporous fermentation covering membrane and a support frame, the microporous fermentation covering membrane is installed on the support frame and covers the exhaust port, and the periphery of the support frame is connected to the connecting seat and can be disassembled;
[0008] The mechanical stirring mechanism includes a motor, a reducer, a main shaft and a plurality of stirring paddles. The main shaft passes through two end plates and is supported by a front seat bearing and a rear seat bearing respectively. A sealing assembly is provided on the outer sides of the two end plates of the main shaft. The front seat bearing and the rear seat bearing are respectively connected to their corresponding end plates. The motor is connected to the main shaft through the reducer. The stirring paddles are evenly distributed along the axial and radial directions of the main shaft. The stirring paddles are installed on the main shaft and can be removed.
[0009] The utility model is a rapid drying device for solid residues from wet garbage pretreatment. A plurality of heating interfaces are arranged on the front and rear side panels of the drying bin, so that hot air can be introduced into the bin to heat and dry the solid residues in the bin. In particular, electric valve plates are provided at the feed port and the discharge port, which can reduce heat loss, improve drying efficiency, and achieve rapid drying of materials. The utility model adopts a mechanical stirring mechanism for stirring and pushing the material. During the drying process of the solid residues, the material in the bin is continuously turned over by the stirring paddle driven by the motor, so that the material is kept loose and heated evenly, so that the material has a good porosity and good air permeability, the material does not clump, and is dried evenly, and the material can be dried quickly, thereby improving the drying efficiency. The utility model is provided with a microporous fermentation covering film on the upper part of the bin body, so that the odor generated during drying can be intercepted by the microporous fermentation covering film, and the moisture is discharged through the microporous fermentation covering film, which can reduce the emission of odor and volatile organic compounds without affecting the drying of the material. The drying device of the utility model does not need to use an air collecting fan to introduce the odor into a dedicated odor treatment equipment, thereby reducing the treatment cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The embodiments of the present utility model are further described in detail below in conjunction with the accompanying drawings.
[0011] Figure 1 It is a structural schematic diagram of a rapid drying device for pre-processing solid residue of wet garbage according to the utility model.
[0012] Figure 2 yes Figure 1 Schematic diagram of the top view structure.
[0013] Figure 3 yes Figure 2 AA cross-sectional structure schematic diagram.
[0014] Among them: 1—motor, 2—reducer, 3—front support, 4—middle support, 4-1—drain outlet, 4-2—middle connecting flange, 5—bin body, 5-1—feed inlet, 5-2—end flange, 5-3—heating interface, 5-4—discharge outlet, 5-5—exhaust outlet, 6—microporous fermentation covering membrane, 7—sealing assembly, 7-1—sealing seat, 7-2—packing sealing strip, 7-3—pressure plate, 8—rear bearing with seat, 9—front bearing with seat, 10—base supporting frame, 10-1—support bin seat, 11—end plate, 12—electric valve plate, 13—support frame, 13-1—transverse support, 13-2—longitudinal support, 14—main shaft, 15—stirring paddle, 15-1—connecting sleeve, 15-2—positioning block, 15-3—paddle, 15-31—connecting shaft section, 15-4—wear-resistant block, 15-5—rib plate. DETAILED DESCRIPTION
[0015] See Figures 1 to 3 As shown, the utility model is a rapid drying device for wet garbage pretreatment solid residue, including a drying bin for accommodating materials, a microporous fermentation covering membrane component for intercepting odor and allowing moisture to pass through, and a mechanical stirring mechanism for stirring and pushing the materials.
[0016] See Figures 1 to 3 As shown, the drying bin of the utility model comprises a bin body 5 and end plates 11 installed at both ends of the bin body 5. A feed port 5-1 is provided on the top of the front side of the bin body 5, and a discharge port 5-4 is provided on the bottom plate of the rear side of the bin body 5. The cross section of the bin body 5 of the utility model can be U-shaped, the bottom plate of the bin body 5 is arc-shaped, the top of the bin body 5 has a top plate, and the end plates 11 are installed at both ends of the bin body 5, so that the bin body 5 forms a closed cavity, and the material is heated and stirred in the closed bin body 5 to be quickly dried. Figure 2 , 3 As shown, the feed port 5-1 and the discharge port 5-4 of the silo 5 of the utility model are provided with electric valve plates 12, which can be controlled by motors or electro-hydraulics, and the feeding and discharging of materials are controlled by the opening and closing of the electric valve plates 12. The drying silo is provided with a plurality of heating interfaces 5-3 arranged at the lower part of the side panels on the front and rear sides, and the heating interfaces 5-3 are connected to the steam heater or electric heater through pipelines, and the heat generated by the heater is passed into the silo 5 to heat and dry the materials. In particular, the heating interfaces 5-3 are arranged in a plurality and arranged at the lower part of both sides of the silo 5, which can better heat the materials and achieve a fast, efficient and stable drying effect. Figures 1 to 3 As shown, the utility model provides an exhaust port 5-5 on the top of the warehouse body 5, and the warehouse body 5 is provided with a connecting seat for fixing the microporous fermentation covering membrane assembly around the exhaust port 5-5, which is connected to the microporous fermentation covering membrane assembly through the connecting seat. The exhaust port 5-5 discharges the odor and moisture generated by drying into the microporous fermentation covering membrane 6.
[0017] See Figures 1 to 3 As shown, the two ends of the silo body 5 of the utility model are provided with end flanges 5-2, the end flanges 5-2 are provided with outer limiting surfaces, and the end plate 11 is provided with corresponding inner limiting surfaces. The two limiting surfaces are matching convex and concave surfaces. The inner limiting surfaces of the end plates 11 are connected with the outer limiting surfaces of the corresponding end flanges 5-2 and fixed with fasteners, which can facilitate the installation of the end plates 11. The outer part of the silo body 5 of the utility model is provided with an insulation layer, which reduces the heat loss of the silo body 5 and reduces energy consumption. Figure 3 As shown, a sealing gasket is provided between the inner limit surface on the end plate 11 of the utility model and the outer limit surface on the corresponding end flange 5-2, so that the drying bin has a better sealing performance.
[0018] See Figures 1 to 3 As shown, the microporous fermentation covering membrane assembly of the utility model includes a microporous fermentation covering membrane 6 and a support frame 13, the microporous fermentation covering membrane 6 is installed on the support frame 13 and covers the exhaust port 5-5, and the periphery of the support frame 13 is connected to the connecting seat and can be disassembled. Therefore, in the drying process of the material, the solid residue after the pretreatment of the wet garbage will produce odor and hot moisture, which will be discharged from the exhaust port 5-5 on the upper part of the bin body 5, and the CO2, NH3, SO2, H2S and other gases in the odor will be intercepted by the microporous fermentation covering membrane 6, while H2O molecules, O2 and N2 can pass through the microporous fermentation covering membrane 6. Therefore, the moisture in the drying bin is discharged into the air through the microporous fermentation covering membrane 6, while the drying effect of the material is maintained. At the same time, the odor in the drying bin does not overflow, and there is no need to treat the odor, thereby reducing the treatment cost of the wet garbage.
[0019] The microporous fermentation covering membrane 6 of the utility model comprises an expanded polytetrafluoroethylene microporous membrane layer of nanometer scale in the middle and a polyester fiber layer fixed on the upper and lower sides of the expanded polytetrafluoroethylene microporous membrane layer. The three-layer structure has a breathable cover with air permeability, which reduces the emission of odor and volatile organic compounds (VOC), and moisture is discharged through the microporous fermentation covering membrane 6. Figure 3 As shown, the support frame 13 of the utility model includes a bottom connecting frame, a transverse bracket 13-1 and a longitudinal bracket 13-2 for supporting the microporous fermentation covering membrane 6, both ends of the transverse bracket 13-1 and the longitudinal bracket 13-2 are installed on the connecting frame, the microporous fermentation covering membrane 6 is installed on the longitudinal bracket 13-2, the transverse bracket 13-1 and the connecting frame, and the connecting frame is installed on the mounting seat through fasteners, which is convenient for installing the microporous fermentation covering membrane assembly on the warehouse body 5 and also convenient for replacing the microporous fermentation covering membrane assembly.
[0020] See Figures 1 to 3As shown, the mechanical stirring mechanism of the utility model includes a motor 1, a reducer 2, a main shaft 14 and a plurality of stirring paddles 15. The main shaft 14 passes through the two end plates 11 and is supported by the front seat bearing 9 and the rear seat bearing 8 respectively. The main shaft 14 is located on the outer side of the end plate 11 and is provided with a sealing assembly 7. The sealing assembly 7 seals the rotating main shaft 14. The front seat bearing 9 and the rear seat bearing 8 are respectively connected to the corresponding end plates 11. Figure 3 As shown, the sealing assembly 7 of the utility model includes a sealing seat 7-1, a packing sealing strip 7-2 and a pressure plate 7-3. The sealing seat 7-1 is fixed to the outside of the end plate 11, the packing sealing strip 7-2 is arranged between the sealing seat 7-1 and the main shaft 14, and the pressure plate 7-3 is installed on the sealing seat 7-1 through fasteners and presses on the packing sealing strip 7-2. The packing sealing strip 7-2 seals the main shaft 14 to reduce the overflow of odor.
[0021] See Figures 1 to 3 As shown, the end plate 11 of the utility model is connected to the corresponding front belt seat bearing 9 and the rear belt seat bearing 8 through the intermediate support 4, and the two ends of the intermediate support 4 are provided with intermediate connecting flanges 4-2. The intermediate connecting flange 4-2 at one end of the intermediate support 4 is installed on the end plate 11 with fasteners, and the intermediate connecting flange 4-2 at the other end is connected to the corresponding front belt seat bearing 9 and the rear belt seat bearing 8 with fasteners. A drain outlet 4-1 is provided at the bottom of the intermediate support 4 to prevent water from collecting in the intermediate support 4, and the front intermediate support 4 is connected to the reducer 2 through the front support 3, and the front intermediate support 4 is connected to the reducer 2 through the front support 3, and the reducer 2 is installed on the front support 3.
[0022] See Figures 1 to 3 As shown, the motor 1 of the utility model is connected to the main shaft 14 through the reducer 2, so the output power of the motor 1 is reduced by the reducer 2 and then given to the main shaft 14, driving the main shaft 14 to rotate. Figure 3 As shown, the stirring paddles 15 of the utility model are evenly distributed along the axial direction and radial direction of the main shaft 14. The stirring paddles 15 are installed on the main shaft 14 and can be disassembled. The stirring paddles 15 driven by the main shaft 14 rotate to stir the materials in the bin body 5, which can prevent the materials from agglomerating during drying, and make the materials more evenly dried by heat, improve the drying efficiency, and facilitate the maintenance or replacement of the worn stirring paddles 15.
[0023] See Figure 3As shown, the stirring paddle 15 of the utility model includes a connecting sleeve 15-1 and a paddle 15-3. The connecting sleeve 15-1 is sleeved on the main shaft 14. The radial mounting holes provided on the connecting sleeve 15-1 correspond to the radial openings on the main shaft 14. The paddle 15-3 has a connecting shaft section 15-31. The connecting shaft section 15-31 has an external thread. The paddle 15-3 has an inclined surface for pushing the material toward the outlet direction. During the stirring process, the material can be pushed toward the discharge port 5-4. Wear-resistant blocks 15-4 are fixed on both sides of the end of the paddle 15-3. The wear-resistant blocks 15-4 increase the service life of the paddle 15-3. The connecting shaft section 15-31 on the paddle 15-3 passes through the radial mounting holes on the connecting sleeve 15-1 and the mounting holes on the main shaft 14 and is fixed with nuts, so that the paddle 15-3 can be easily disassembled and assembled. Figure 3 As shown, the blade 15-3 of the utility model is located on one side of the connecting sleeve 15-1 and is also fixed with a positioning block 15-2. The connecting sleeve 15-1 is provided with a limiting groove, and the blade 15-3 is arranged in the limiting groove. The positioning block 15-2 is connected to the outer periphery of the connecting sleeve 15-1, and the blade 15-3 and the connecting sleeve 15-1 can be quickly limited. A rib plate 15-5 is provided on one side of the blade 15-3 and is connected to the positioning block 15-2 and the wear-resistant block 15-4 to improve the mechanical strength of the blade 15-3.
[0024] See Figures 1 to 3 As shown, the utility model also has a base support frame 10, on which support bin seats 10-1 for supporting the bin body 5 are fixed at intervals. The base support frame 10 is welded into a frame structure using steel sections. The support bin seat 10-1 includes an integrated bottom plate and inclined limit plates on the front and rear sides of the bottom plate. The bottom plate is connected to the bin bottom, and the inclined limit plates are connected to the side plates of the bin body 5. The support bin seat 10-1 is welded to the base support frame 10, and the bin body 5 is installed on the corresponding support bin seat 10-1.
Claims
1. A rapid drying device for wet garbage pretreatment solid residue, Features: It includes a drying bin for accommodating materials, a microporous fermentation covering membrane component for intercepting odor and allowing moisture to pass through, and a mechanical stirring mechanism for stirring and pushing the materials; The drying bin comprises a bin body (5) and end plates (11) mounted at both ends of the bin body (5); a feed port (5-1) is provided on the top of the front side of the bin body (5); a discharge port (5-4) is provided on the bottom of the rear side of the bin body (5); and electric valve plates (12) are provided at the feed port (5-1) and the discharge port (5-4) of the bin body (5); a plurality of heating interfaces (5-3) are arranged at the lower part of the side plates at the front and rear sides of the bin body (5); an exhaust port (5-5) is also provided at the top of the bin body (5); and a connection seat for fixing a microporous fermentation covering membrane assembly is provided around the exhaust port (5-5); The microporous fermentation covering membrane assembly comprises a microporous fermentation covering membrane (6) and a support frame (13), the microporous fermentation covering membrane (6) being mounted on the support frame (13) and covering the exhaust port (5-5), and the periphery of the support frame (13) being connected to the connecting seat and being removable; The mechanical stirring mechanism comprises a motor (1), a reducer (2), a main shaft (14) and a plurality of stirring paddles (15); the main shaft (14) passes through two end plates (11) and is supported by a front seat bearing (9) and a rear seat bearing (8), respectively; a sealing assembly (7) is provided on the outer sides of the two end plates (11) of the main shaft (14); the front seat bearing (9) and the rear seat bearing (8) are respectively connected to the corresponding end plates (11); the motor (1) is connected to the main shaft (14) through the reducer (2); the stirring paddles (15) are evenly distributed along the axial direction and radial direction of the main shaft (14); and the stirring paddles (15) are mounted on the main shaft (14) and can be removed.
2. A rapid drying device for pre-treatment of wet garbage solid residue according to claim 1, Features: The support frame (13) comprises a connecting frame at the bottom, a transverse frame (13-1) and a longitudinal frame (13-2) for supporting the microporous fermentation covering membrane (6); both ends of the transverse frame (13-1) and the longitudinal frame (13-2) are mounted on the connecting frame; the microporous fermentation covering membrane (6) is mounted on the longitudinal frame (13-2), the transverse frame (13-1) and the connecting frame; and the connecting frame is mounted on the mounting seat via fasteners.
3. A rapid drying device for solid residue pretreatment of wet garbage according to claim 1 or 2, Features: The microporous fermentation covering membrane (6) comprises an intermediate nanometer-scale expanded polytetrafluoroethylene microporous membrane layer and polyester fiber layers fixed on the upper and lower sides of the expanded polytetrafluoroethylene microporous membrane layer.
4. A rapid drying device for solid residue pretreatment of wet garbage according to claim 1, Features: End flanges (5-2) are provided at both ends of the silo body (5), the end flanges (5-2) are provided with outer limit surfaces, the end plates (11) are provided with corresponding inner limit surfaces, the inner limit surfaces of the end plates (11) are connected to the outer limit surfaces of the corresponding end flanges (5-2) and fixed by fasteners, and a heat-insulating layer is provided on the outside of the silo body (5).
5. A rapid drying device for pre-treatment of wet garbage solid residue according to claim 4, Features: A sealing gasket is also provided between the inner limit surface on the end plate (11) and the outer limit surface on the corresponding end flange (5-2).
6. A rapid drying device for wet garbage pretreatment solid residue according to claim 1, Features: The sealing assembly (7) comprises a sealing seat (7-1), a packing sealing strip (7-2) and a pressure plate (7-3); the sealing seat (7-1) is fixed to the outside of the end plate (11); the packing sealing strip (7-2) is arranged between the sealing seat (7-1) and the main shaft (14); the pressure plate (7-3) is installed on the sealing seat (7-1) through fasteners and presses against the packing sealing strip (7-2); the packing sealing strip (7-2) seals the main shaft (14).
7. A rapid drying device for wet garbage pretreatment solid residue according to claim 1, Features: The end plate (11) is connected to the corresponding front seat bearing (9) and rear seat bearing (8) via an intermediate support (4); a drainage port (4-1) is provided at the bottom of the intermediate support (4); and the front intermediate support (4) is connected to the reducer (2) via a front support (3).
8. A rapid drying device for solid residue pretreatment of wet garbage according to claim 1, Features: The stirring paddle (15) comprises a connecting sleeve (15-1) and a paddle (15-3); the connecting sleeve (15-1) is sleeved on the main shaft (14); a radial mounting hole is provided on the connecting sleeve (15-1) and corresponds to a radial opening on the main shaft (14); the paddle (15-3) has a connecting shaft section (15-31); the connecting shaft section (15-31) is provided with an external thread; the paddle (15-3) has an inclined surface for pushing materials toward an outlet direction; wear-resistant blocks (15-4) are fixed on both sides of the end of the paddle (15-3); the connecting shaft section (15-31) on the paddle (15-3) passes through a radial mounting hole on the connecting sleeve (15-1) and a mounting hole on the main shaft (14) and is fixed with a nut.
9. A rapid drying device for solid residue pretreatment of wet garbage according to claim 8, Features: The blade (15-3) is located on one side of the connecting sleeve (15-1) and is further provided with a positioning block (15-2); the connecting sleeve (15-1) is provided with a limiting groove, the blade (15-3) is arranged in the limiting groove, and the positioning block (15-2) is connected to the outer periphery of the connecting sleeve (15-1); a rib plate (15-5) is provided on one side of the blade (15-3) and is connected to the positioning block (15-2) and the wear-resistant block (15-4).
10. A rapid drying device for wet garbage pretreatment solid residue according to claim 1, Features: It also has a base support frame (10), on which a support bin seat (10-1) for supporting a bin body (5) is fixed at intervals, the support bin seat (10-1) comprising an integral bottom plate and inclined limit plates at the front and rear sides of the bottom plate, the bottom plate being connected to the bin bottom, and the inclined limit plates being connected to the side plates of the bin body (5).