Discharging mechanism and domestic sludge modifying and dewatering equipment

Abstract

The invention relates to the related technical field of sludge treatment, in particular to a discharging mechanism and domestic sludge modification dewatering equipment, the discharging mechanism comprises feeding roll shafts, a discharging filter screen, a discharging channel and a waste residue groove, the feeding roll shafts are rotationally installed on an equipment support through a rotating shaft, the feeding roll shafts are symmetrically arranged, the rotating shaft is driven by a driving structure, and the discharging filter screen is arranged on the discharging channel; the discharging filter screen is of an annular screen body structure which is connected end to end, the discharging filter screen is installed between the feeding roller shafts on the two sides, the discharging channel penetrates through the discharging filter screen, the discharging channel is formed by combining a side plate and a bottom plate, and the side plate and the bottom plate are combined to form a channel structure; by arranging the discharging mechanism formed by combining the feeding roller shaft, the discharging filter screen, the discharging channel and the waste residue tank, large-particle sand in sludge is removed in the sludge discharging process, so that the large-particle sand in the sludge is effectively prevented from damaging filter cloth in the filter pressing device; therefore, the service life of the filter cloth on the filter pressing device is effectively ensured.

Description

Technical Field

[0001] The invention relates to the technical field related to sludge treatment, and in particular to a material discharge mechanism and domestic sludge modification and dehydration equipment. Background Art

[0002] Sediment discharged from sewage treatment facilities. Sediment with organic matter as the main component is called sludge, which is easy to decompose and stink, has fine particles, small specific gravity (about 1.02-1.006), high water content and is not easy to dehydrate. It is a hydrophilic substance with a colloidal structure;

[0003] The existing Chinese patent document with announcement number CN102503058B discloses a complete set of sludge treatment equipment, which includes a metering and feeding device for metering and conveying sludge to be treated, a stirring and modifying device for modifying the sludge to be treated, a metering and feeding device for metering and conveying sludge to a heating sterilization and deodorization device, a heating sterilization and deodorization device for heating and sterilizing the modified sludge, a transfer tank for storing sludge and keeping the sludge in a uniform state, a waste gas collection and treatment device for collecting and spraying waste gas generated in the stirring and modifying device, the heating sterilization and deodorization device and the transfer tank, a metering pumping device I for inputting the sludge from the transfer tank into a dehydration device I, a dehydration device I for solid-liquid separation of the sludge in the transfer tank, a liquid tank for holding the liquid obtained after the solid-liquid separation treatment in the dehydration device I, a dehydration device II for solid-liquid separation of the mixture in the liquid tank, a metering water supply device for extracting water from the liquid tank and sending it to the stirring and modifying device, and a water supply device for the stirring and modifying device. A metering device for conveying agent A in the device, a metering device for conveying agent B to the stirring and modifying device, a metering device for conveying agent C to the liquid pool, and a metering pumping device II for conveying a mixture containing heavy metals in the liquid pool to a dehydration device II; a metering and feeding device for sludge to be treated, a stirring and modifying device, a metering and feeding device, a heating sterilization and deodorization device, a transfer tank, a metering pumping device I, a dehydration device I, a liquid pool, a metering pumping device II, and a dehydration device II are connected in sequence through pipelines, the metering device for agent A and the metering device for agent B are respectively connected to the stirring and modifying device through pipelines, the liquid pool is connected to the metering water supply device through a pipeline, the metering water supply device is connected to the stirring and modifying device through a pipeline, the metering device for agent C is connected to the liquid pool through a pipeline, the waste gas collection and treatment device is connected to the stirring and modifying device, the heating sterilization and deodorization device, and the transfer tank through a pipeline, and a liquid reflux pipeline is also provided between the waste gas collection and treatment device and the transfer tank;

[0004] However, there is no filtering structure on the feeding device, and the existing sludge dewatering devices usually use a filter press structure for dewatering. There will be sand and gravel particles with larger particle sizes in the sludge. When the filter press structure is in operation, these sand and gravel particles will damage the filter cloth of the filter press structure, thereby increasing the maintenance cost of the equipment. For this reason, the present invention proposes a feeding mechanism and a domestic sludge modified dewatering device to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a material discharge mechanism and domestic sludge modification and dehydration equipment to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a material unloading mechanism, comprising:

[0007] A feeding roller shaft, wherein the feeding roller shaft is rotatably mounted on the equipment bracket via a rotating shaft, and a group of feeding roller shafts are symmetrically arranged, and the rotating shaft is driven by a driving structure;

[0008] The feed filter screen is a ring-shaped mesh structure connected end to end, and the feed filter screen is installed between the feed rollers on both sides;

[0009] A material discharge channel, wherein the material discharge channel is arranged through the material discharge filter screen, and the material discharge channel is composed of a side plate and a bottom plate, and the side plate and the bottom plate are combined to form a channel structure, and the rear side end of the bottom plate is arranged to be inclined downward, and the end of the bottom plate faces the material port of the sludge filter press device;

[0010] A waste slag trough is arranged directly below the feed filter screen.

[0011] Preferably, both ends of the feed roller shaft are provided with meshing grooves, and the inner side surface of the feed filter screen is integrally formed with meshing teeth at both sides. The meshing teeth are matched with the meshing grooves, and when the feed filter screen is actually installed, the meshing teeth are embedded in the meshing grooves.

[0012] Preferably, an elastic silicone layer is embedded in the middle of the feed roller shaft, and when the feed filter screen contacts the elastic silicone layer, the silicone body of the elastic silicone layer is embedded in the mesh holes on the feed filter screen.

[0013] Preferably, a support plate is installed on the side plate of the discharge channel through a connecting piece, and a force-bearing protrusion is integrally formed on the upper surface of the support plate. The force-bearing protrusions are arranged in a row at equal intervals, and the meshing teeth and the force-bearing protrusions are both protrusion structures with semicircular cross-sections, and the spacing between adjacent meshing teeth and adjacent force-bearing protrusions is equal.

[0014] Preferably, when the meshing teeth and the force-bearing protrusions are staggered, the meshing teeth and the force-bearing protrusions are close to each other.

[0015] Preferably, the connecting part is composed of a combination of an adapter column, an adjusting screw, an adjusting nut and a fastening nut, the adapter column, the adjusting screw and the adjusting nut are integrally formed, the fastening nut is screwed on the adjusting screw, a threaded hole is provided on the side plate of the discharge channel, the adjusting screw is screwed in the threaded hole, the lower surface of the support plate is fixedly connected with bearing seats at both ends, the adapter column is rotatably mounted on the bearing seat through a ball bearing, and when the fastening nut is actually tightened, the fastening nut is abutted against the side plate of the discharge channel.

[0016] Preferably, a spring hole is opened on the lower surface of the side plate of the discharge channel, the spring hole and the threaded hole are staggered, and a plurality of spring holes are arranged at equal intervals, the bottom of the spring hole is connected to a support spring, the bottom of the support spring is fixedly connected to a support plate, and the support plate is positioned and supported by support legs.

[0017] Preferably, the coverage area of ​​the waste slag trough is larger than the coverage area of ​​the feed filter.

[0018] A domestic sludge modification and dehydration device comprises the above-mentioned material discharge mechanism.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By setting a feeding mechanism composed of a feeding roller, a feeding filter, a feeding channel and a waste slag tank, large sand and gravel particles in the sludge can be removed during the sludge feeding process, thereby effectively preventing the large sand and gravel particles in the sludge from damaging the filter cloth in the filter press device, thereby effectively ensuring the service life of the filter cloth on the filter press device;

[0021] 2. By embedding an elastic silicone layer in the middle of the feed roller, when the feed roller contacts the feed filter, the elastic silicone layer will be embedded in the filter holes of the feed filter, thereby forming a self-cleaning effect on the filter holes of the feed filter, thereby effectively avoiding blockage of the filter holes of the feed filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0024] Figure 3 This is a schematic diagram of the structure of the feed roller shaft of the present invention;

[0025] Figure 4 This is a schematic diagram of the distribution of the positions of the force-bearing protrusions of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the material feeding channel of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the connecting piece of the present invention.

[0028] In the figure: feed roller 1, discharge filter 2, discharge channel 3, waste residue trough 4, rotating shaft 5, equipment bracket 6, meshing groove 7, meshing teeth 8, connecting piece 9, support plate 10, force protrusion 11, bearing seat 12, adapter column 13, adjusting screw 14, adjusting nut 15, fastening nut 16, threaded hole 17, support spring 18, support plate 19, support leg 20, elastic silicone layer 21. DETAILED DESCRIPTION

[0029] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-6 The present invention provides the following three preferred embodiments:

[0031] Embodiment 1, a material discharge mechanism, including a feeding roller 1, a material discharge filter 2, a material discharge channel 3 and a waste residue tank 4, the feeding roller 1 is rotatably mounted on an equipment bracket 6 through a rotating shaft 5, and a group of feeding rollers 1 are symmetrically arranged, the rotating shaft 5 is driven by a driving structure, the material discharge filter 2 is an annular mesh structure connected end to end, and the material discharge filter 2 is installed between the feeding rollers 1 on both sides, the material discharge channel 3 is arranged through the material discharge filter 2, and the material discharge channel 3 is composed of a side plate and a bottom plate, and the side plate and the bottom plate are combined. A channel structure is formed, and the rear side end of the bottom plate is tilted downward, the end of the bottom plate faces the material port of the sludge filter press device, and the waste residue trough 4 is arranged directly below the feed filter screen 2. By setting a feed mechanism composed of a feed roller 1, a feed filter screen 2, a feed channel 3 and a waste residue trough 4, large particles of sand and gravel in the sludge are removed during the sludge feeding process, thereby effectively preventing the large particles of sand and gravel in the sludge from damaging the filter cloth in the filter press device, thereby effectively ensuring the service life of the filter cloth on the filter press device.

[0032] Both ends of the feed roller shaft 1 are provided with meshing grooves 7, and the inner side surfaces of the discharge filter screen 2 are integrally formed with meshing teeth 8 at both sides. The meshing teeth 8 are matched with the meshing grooves 7, and when the discharge filter screen 2 is actually installed, the meshing teeth 8 are embedded in the meshing grooves 7 to avoid relative sliding between the discharge filter screen 2 and the feed roller shaft 1.

[0033] Embodiment 2, on the basis of embodiment 1, an elastic silicone layer 21 is embedded in the middle position of the feed roller 1, and when the feed filter 2 contacts the elastic silicone layer 21, the silicone body of the elastic silicone layer 21 is embedded in the mesh holes on the feed filter 2. By embedding the elastic silicone layer 21 in the middle position of the feed roller 1, when the feed roller 1 contacts the feed filter 2, the elastic silicone layer 21 will be embedded in the filter holes of the feed filter 2, thereby forming self-cleaning for the filter holes of the feed filter 2, thereby effectively avoiding clogging of the filter holes of the feed filter 2.

[0034] A support plate 10 is installed on the side plate of the unloading channel 3 through a connecting piece 9. A force-bearing protrusion 11 is integrally formed on the upper surface of the support plate 10. The force-bearing protrusions 11 are arranged in a row at equal intervals. The meshing teeth 8 and the force-bearing protrusions 11 are both protrusion structures with semicircular cross-sections, and the intervals between adjacent meshing teeth 8 and adjacent force-bearing protrusions 11 are equal. When the meshing teeth 8 and the force-bearing protrusions 11 are staggered, the meshing teeth 8 and the force-bearing protrusions 11 are arranged to be close to each other.

[0035] Embodiment 3, on the basis of embodiment 2, the connecting member 9 is composed of a transfer column 13, an adjusting screw 14, an adjusting nut 15 and a fastening nut 16, the transfer column 13, the adjusting screw 14 and the adjusting nut 15 are integrally formed, the fastening nut 16 is screwed on the adjusting screw 14, a threaded hole 17 is provided on the side plate of the discharge channel 3, the adjusting screw 14 is screwed in the threaded hole 17, the lower surface of the support plate 10 is fixedly connected with the bearing seat 12 at both ends, the transfer column 13 is rotatably mounted on the bearing seat 12 through a ball bearing, and when the fastening nut 16 is actually tightened, the fastening nut 16 is abutted against the side plate of the discharge channel 3, and by configuring the connecting member 9 to be composed of a transfer column 13, the adjusting screw 14, the adjusting nut 15 and the fastening nut 16, it is convenient to adjust the height of the support plate 10, thereby ensuring that the meshing teeth 8 and the force-bearing protrusions 11 can be stably stressed.

[0036] A spring hole is provided on the lower surface of the side plate of the discharge channel 3. The spring hole is staggered with the threaded hole 17, and a plurality of spring holes are arranged at equal intervals. The bottom of the spring hole is connected with a support spring 18. The bottom of the support spring 18 is fixedly connected with a support plate 19. The support plate 19 is positioned and supported by support legs 20. Through the setting of the support spring 18, the discharge channel 3 can generate a shaking effect under the interaction of the meshing teeth 8 and the force-bearing protrusions 11, thereby ensuring that the sludge can flow smoothly along the discharge channel 3.

[0037] The coverage area of ​​the waste residue tank 4 is larger than the coverage area of ​​the feed filter 2 .

[0038] A domestic sludge modification and dehydration device comprises the above-mentioned material discharge mechanism.

[0039] Working principle: in actual use, the sludge is discharged onto the discharge filter 2, and then the discharge filter 2 is driven to move by the feeding roller 1, and the interaction force between the meshing teeth 8 and the force-bearing protrusions 11 is used to make the discharge filter 2 shake, so that the sludge engineering discharge filter 2 falls into the discharge channel 3, and then the sludge flows along the discharge channel 3 into the material port of the sludge filter press device.

[0040] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A feeding mechanism, Features: include: A feeding roller shaft (1), wherein the feeding roller shaft (1) is rotatably mounted on an equipment bracket (6) via a rotating shaft (5), and a group of feeding roller shafts (1) are symmetrically arranged, and the rotating shaft (5) is driven by a driving structure; A feed filter (2), wherein the feed filter (2) is a ring-shaped mesh structure connected end to end, and the feed filter (2) is installed between the feed rollers (1) on both sides; A material discharge channel (3), wherein the material discharge channel (3) is arranged through the material discharge filter screen (2), and the material discharge channel (3) is composed of a side plate and a bottom plate, and the side plate and the bottom plate are combined to form a channel structure, and the rear side end of the bottom plate is arranged to be inclined downward, and the end of the bottom plate faces the material port of the sludge filter press device; A waste residue trough (4), wherein the waste residue trough (4) is arranged directly below the feed filter screen (2).

2. A feeding mechanism according to claim 1, Features: Both ends of the feeding roller shaft (1) are provided with meshing grooves (7), and the inner side surfaces of the feeding filter screen (2) are integrally formed with meshing teeth (8) at both sides thereof, the meshing teeth (8) are matched with the meshing grooves (7), and when the feeding filter screen (2) is actually installed, the meshing teeth (8) are embedded in the meshing grooves (7).

3. A feeding mechanism according to claim 2, Features: An elastic silicone layer (21) is embedded in the middle of the feeding roller (1); when the feeding filter (2) contacts the elastic silicone layer (21), the silicone body of the elastic silicone layer (21) is embedded in the mesh holes on the feeding filter (2).

4. A feeding mechanism according to claim 2, Features: A support plate (10) is installed on the side plate of the discharge channel (3) through a connecting piece (9), and a force-bearing protrusion (11) is integrally formed on the upper surface of the support plate (10), and the force-bearing protrusions (11) are arranged in a row at equal intervals. The meshing teeth (8) and the force-bearing protrusions (11) are both protrusion structures with semicircular cross-sections, and the spacing between adjacent meshing teeth (8) and adjacent force-bearing protrusions (11) is equal.

5. A feeding mechanism according to claim 4, Features: When the meshing teeth (8) and the force-bearing protrusion (11) are arranged in a staggered manner, the meshing teeth (8) and the force-bearing protrusion (11) are arranged to be close to each other.

6. A feeding mechanism according to claim 5, Features: The connecting member (9) is composed of a transfer column (13), an adjusting screw (14), an adjusting nut (15) and a fastening nut (16). The transfer column (13), the adjusting screw (14) and the adjusting nut (15) are integrally formed. The fastening nut (16) is screwed on the adjusting screw (14). A threaded hole (17) is provided on the side plate of the discharge channel (3). The adjusting screw (14) is screwed into the threaded hole (17). The lower surface of the support plate (10) is fixedly connected with a bearing seat (12) at both ends. The transfer column (13) is rotatably mounted on the bearing seat (12) through a ball bearing. When the fastening nut (16) is actually tightened, the fastening nut (16) abuts against the side plate of the discharge channel (3).

7. A feeding mechanism according to claim 6, Features: A spring hole is provided on the lower surface of the side plate of the feeding channel (3), the spring hole is staggered with the threaded hole (17), and a plurality of spring holes are arranged at equal intervals, the bottoms of the spring holes are connected to support springs (18), the bottoms of the support springs (18) are fixedly connected to support plates (19), and the support plates (19) are positioned and supported by support legs (20).

8. A feeding mechanism according to claim 7, Features: The coverage area of ​​the waste residue tank (4) is larger than the coverage area of ​​the feed filter (2).

9. A domestic sludge modification and dehydration equipment, Features: The domestic sludge modification and dehydration equipment has any one of the feeding mechanisms described in claims 1-8.

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