Spiral sludge dewatering device

Abstract

The utility model relates to sludge dewatering technical field especially relates to a spiral sludge dewatering device, including fixed frame, water collecting tank, sewage tank and sludge dewatering mechanism, the fixed frame is rectangular frame body structure, and the upper portion of fixed frame is provided with water collecting tank and sewage tank, the upper portion of water collecting tank is provided with sewage tank, and sewage tank is connected with sludge dewatering mechanism through water guide pipe, the sludge dewatering mechanism includes support frame, dewatering groove, first spiral material guiding rod, laminated sheet and extruder, and dewatering groove is set up in the upper portion of water collecting tank through support frame, and the inside of dewatering groove is provided with first spiral material guiding rod and second spiral material guiding rod, one end of first spiral material guiding rod and second spiral material guiding rod is provided with the extruder connected with the discharge port of dewatering groove. The utility model can exert pressure to sludge, promote more moisture to separate from sludge, and remove the moisture remaining in sludge through drying structure to evaporate, thereby reducing the moisture content of sludge.

Description

Technical Field

[0001] This utility model relates to the field of sludge dewatering technology, and in particular to a spiral sludge dewatering device. Background Technology

[0002] In today's wastewater treatment process, sludge treatment is a crucial step. In practice, flocculants are usually added to the wastewater first, and then the wastewater is introduced into a spiral sludge dewatering device to complete the sludge compression process.

[0003] Traditional spiral sludge treatment equipment mainly relies on the coordinated operation of the discs and screw to guide the material and discharge water stains through this process, thus completing the sludge compression. However, this conventional treatment method has obvious limitations. The sludge treated by such equipment still contains a lot of moisture and is difficult to achieve the ideal dewatering standard. This not only increases the difficulty and cost of subsequent sludge treatment, but may also have potential negative impacts on the environment. During the transportation, storage and further disposal of sludge, the high water content may result in sludge volume that is inconvenient to transport and is prone to bacterial growth, producing odors and polluting the surrounding environment.

[0004] In view of the above-mentioned defects of traditional spiral sludge treatment equipment, in order to effectively improve the water removal effect after sludge dewatering, a new type of spiral sludge dewatering device was designed. This device adds an extrusion structure and a drying mechanism. The extrusion structure can further apply pressure to the sludge on the basis of the original equipment, so as to promote the separation of more water from the sludge; while the drying mechanism can use heat energy to remove the residual water in the sludge in the form of evaporation, thereby significantly reducing the water content of the sludge. Utility Model Content

[0005] The purpose of this invention is to provide a spiral sludge dewatering device that can apply pressure to the sludge to promote the separation of more water from the sludge, and then remove the residual water in the sludge by evaporation through a drying structure, thereby significantly reducing the water content of the sludge.

[0006] The technical implementation scheme of this utility model is as follows: A spiral sludge dewatering device includes a fixed frame, a water collection tank, a wastewater tank, and a sludge dewatering mechanism. The fixed frame has a rectangular frame structure, and the water collection tank and wastewater tank are arranged on the upper part of the fixed frame. The wastewater tank is arranged on the upper part of the water collection tank and is connected to the sludge dewatering mechanism through a water guide pipe. The sludge dewatering mechanism includes a support frame, a dewatering tank, a first spiral guide rod, stacked plates, an extruder, and a discharge channel. The dewatering tank is arranged on the upper part of the water collection tank through the support frame, and the first spiral guide rod and the second spiral guide rod are arranged inside the dewatering tank. Several stacked plates are arranged on the outside of the first spiral guide rod and the second spiral guide rod. An extruder connected to the discharge port of the dewatering tank is arranged at one end of the first spiral guide rod and the second spiral guide rod. A discharge channel is arranged at one end of the support frame, and a dispersing plate is arranged inside the discharge channel.

[0007] Optionally, the stacked plates are connected to the connecting rod on the dewatering tank through connecting holes, and the stacked plates cover the outside of the first spiral guide rod to form a filter layer structure; one end of the dewatering tank is provided with a water inlet, and one end of the water inlet is connected to the channel formed by the stacked plates, and the other end of the water inlet is connected to the water guide pipe.

[0008] Optionally, the feeding channel is a rectangular cavity structure with openings at both ends, and the inlet of the feeding channel is connected to the outlet of the dewatering tank; the extruder is a conical cavity structure with openings at both ends.

[0009] Optionally, a connecting support is provided at one end of the dewatering tank, and a drive motor is provided on the upper part of the connecting support. The output shaft of the drive motor is connected to the first spiral guide rod through a coupling.

[0010] Optionally, one end of the fixed frame is provided with a feeding trough, and the inside of the feeding trough is provided with a conveyor belt. A fixed bracket is provided on the upper part of the feeding trough, and a scraper is provided inside the fixed bracket.

[0011] Optionally, the bottom of the feeding trough is provided with an air guide cover, and the air guide cover is connected to the heat source pump through an air guide pipe and an air guide pump.

[0012] Optionally, an observation port is provided at the top of the feeding channel, and an acrylic glass plate is installed on the observation port.

[0013] This utility model has the following advantages: 1. This utility model includes a water collection tank and a sewage tank on the upper part of the fixed frame. The sewage tank is used to collect the sewage to be treated. After adding flocculant, it is introduced into the sludge dewatering machine. The sewage can be quickly squeezed and dewatered through the internal spiral guide rod and the extrusion dewatering structure formed by the stacked plates. In order to improve the dewatering effect of sludge, an extruder is set at one end of the channel formed by the stacked plates, which matches the spiral guide rod to realize the extrusion and discharge of water stains and improve the dewatering effect.

[0014] 2. In this utility model, a feeding trough is set at one end of the fixed frame, and a conveyor belt is set inside the feeding trough for transporting the discharged sludge. An air guide hood is set at the bottom of the feeding trough. Through the air guide pipe and the air guide pump and the heat source pump, the sludge on the conveyor belt is dried by hot air flow, thereby improving the drying efficiency of the sludge. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is the front view of the present invention.

[0017] Figure 3 This is a schematic diagram of the sludge dewatering mechanism of this utility model.

[0018] Figure 4 This is a schematic diagram of the dehydration tank part of this utility model.

[0019] Figure 5 This is a schematic diagram of the material feeding channel of this utility model.

[0020] Figure 6 This is a schematic diagram of the dehydration tank part of this utility model.

[0021] The meanings of the reference numerals in the attached diagram are as follows: 1-fixed frame, 2-sewage tank, 3-feeding trough, 4-heat source pump, 5-air guide pipe, 6-sludge dewatering mechanism, 601-support frame, 602-dewatering tank, 603-water inlet, 604-stacking plate, 605-extruder, 606-connecting support, 607-drive motor, 608-feeding channel, 609-feeding port, 610-observation port, 611-dispersion plate, 612-first spiral guide rod, 7-conveyor belt, 8-air guide pump, 9-air guide hood, 10-scraper strip, 11-fixed bracket, 12-water guide pipe, 13-air guide pump. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0023] like Figures 1-6 As shown, a spiral sludge dewatering device includes a fixed frame 1, a water collection tank 8, a wastewater tank 2, and a sludge dewatering mechanism 6. The fixed frame 1 has a rectangular frame structure, and the water collection tank 8 and the wastewater tank 2 are arranged on the upper part of the fixed frame 1. The wastewater tank 2 is arranged on the upper part of the water collection tank 8, and the wastewater tank 2 is connected to the sludge dewatering mechanism 6 through a water guide pipe 12. The sludge dewatering mechanism 6 includes a support frame 601, a dewatering tank 602, a first spiral guide rod 612, stacked plates 604, an extruder 605, and a discharge channel 608. The dewatering tank 602 is mounted on the upper part of the water collection tank 8 via a support frame 601. Inside the dewatering tank 602, there is a first spiral guide rod 612 and a second spiral guide rod. Several stacked plates 604 are arranged on the outside of the first spiral guide rod 612 and the second spiral guide rod. One end of the first spiral guide rod 612 and the second spiral guide rod is provided with an extruder 605 connected to the discharge port of the dewatering tank 602. One end of the support frame 601 is provided with a discharge channel 608, and a dispersing plate 611 is arranged inside the discharge channel 608.

[0024] The stacked plates 604 are connected to the connecting rod on the dewatering tank 602 through connecting holes, and the stacked plates 604 cover the outside of the first spiral guide rod 612 to form a filter layer structure; one end of the dewatering tank 602 is provided with a water inlet 603, and one end of the water inlet 603 is connected to the channel formed by the stacked plates 604, and the other end of the water inlet 603 is connected to the water guide pipe 12; the feeding channel 608 is a rectangular cavity structure with open ends, and the feeding port 609 of the feeding channel 608 is connected to the discharge port of the dewatering tank 602; the extruder 605 is a conical cavity structure with open ends; one end of the dewatering tank 602 is provided with a connecting support 606, and a drive motor 607 is provided on the upper part of the connecting support 606, and the output shaft of the drive motor 607 is connected to the first spiral guide rod 612 through a coupling.

[0025] It should be noted that a water collection tank 8 and a sewage tank 2 are installed on the upper part of the fixed frame. The function of the water collection tank 8 is to collect the water that falls off during dewatering, while the function of the sewage tank 2 is to store the sewage to be treated, so as to facilitate the addition of flocculant, which is then pumped into the sludge dewatering mechanism 6 by the water pump for spiral desludge treatment.

[0026] It should be further explained that during the wastewater treatment process, the dewatering tank 602 is mounted on the upper part of the collection tank 8 at an inclined position via the support frame 601, forming a stable assembly structure. The dewatering tank 602 has a first spiral guide rod 612 and a second spiral guide rod symmetrically arranged inside, and stacked plates 602 are assembled on its exterior. The orderly arrangement of the stacked plates forms a guiding channel structure. When the equipment is running, the spiral guide rods rotate under the drive mechanism, using the pushing action of their spiral blades to achieve directional transport of sludge. During this process, as the spiral guide rods advance, the sludge is subjected to gradually increasing compressive force. Simultaneously, combined with the inclined setting of the dewatering tank, the water contained in the sludge seeps out through the gaps reserved between the stacked plates 602 under the dual action of gravity and spiral compressive force, ultimately flowing into the collection tank 8 for collection. Through the above structural cooperation and coordinated action, the function of spiral continuous sludge dewatering and removal is achieved.

[0027] It should be further explained that, in order to improve the dryness of the sludge, an extruder 605 is set at one end of the channel formed by the stacked plates. It adopts a conical cavity structure and works with the internal spiral guide rod to guide the sludge into the extruder 605, thereby reducing the space for movement. Under the continuous transmission of the spiral guide rod, the resulting extrusion force can squeeze the sludge again to remove water stains. The squeezed sludge enters the feeding trough 3 from the discharge channel 608 for conveying.

[0028] like Figures 1-6 As shown, a feeding trough 3 is provided at one end of the fixed frame 1, and a conveyor belt 7 is provided inside the feeding trough 3. A fixed bracket 11 is provided on the upper part of the feeding trough 3, and a scraper strip 10 is provided inside the fixed bracket 11. An air guide hood 9 is provided at the bottom of the feeding trough 3, and the air guide hood 9 is connected to the heat source pump 4 through an air guide pipe 5 and an air guide pump 13. An observation port 610 is provided on the upper part of the discharge channel 608, and an acrylic glass plate is provided on the observation port 610.

[0029] It should be noted that the feeding trough 3 is set at one end of the fixed frame 1. The inside of the feeding trough 3 is equipped with a conveyor belt 7 for transporting the dewatered sludge. Furthermore, an air guide hood 9 is set at the bottom of the feeding trough 3. It is connected to the heat source pump 4 through the air guide pipe 5 and the air guide pump 13. The heat source pump generates hot air and guides it into the air guide hood 9 to dry the sludge in the upper part of the feeding trough 3, thereby improving the drying efficiency.

[0030] It should be further explained that the inside of the feeding channel 608 is equipped with a dispersing plate 611, which is a rectangular cavity structure with openings at both ends. The dispersing plate 611 is equipped with multiple dispersing strips, which can break up the falling sludge and prevent it from accumulating on the conveyor belt 7. In addition, a fixed bracket 11 and a scraper 10 are provided on the upper part of the conveyor belt 7, which can scrape the accumulated sludge to level it, thereby increasing the contact area with the hot airflow and improving the drying efficiency.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A spiral sludge dewatering device, comprising a fixed frame (1), a water collection tank (8), a sewage tank (2), and a sludge dewatering mechanism (6), characterized in that, The fixed frame (1) is a rectangular frame structure, and a water collection tank (8) and a sewage tank (2) are provided on the upper part of the fixed frame (1). The sewage tank (2) is provided on the upper part of the water collection tank (8), and the sewage tank (2) is connected to the sludge dewatering mechanism (6) through a water guide pipe (12). The sludge dewatering mechanism (6) includes a support frame (601), a dewatering tank (602), a first spiral guide rod (612), stacked plates (604), an extruder (605), and a discharge channel (608). The dewatering tank (602) is set on the upper part of the water collection tank (8) through the support frame (601), and the first spiral guide rod (612) and the second spiral guide rod are provided inside the dewatering tank (602). Several stacked plates (604) are provided on the outside of the first spiral guide rod (612) and the second spiral guide rod. One end of the first spiral guide rod (612) and the second spiral guide rod is provided with an extruder (605) connected to the discharge port of the dewatering tank (602). One end of the support frame (601) is provided with a feeding channel (608), and a dispersing plate (611) is provided inside the feeding channel (608).

2. A spiral sludge dewatering device according to claim 1, characterized in that, The stacked plate (604) is connected to the connecting rod on the dewatering tank (602) through the connecting hole, and the stacked plate (604) is wrapped around the outside of the first spiral guide rod (612) to form a filter layer structure; The dewatering tank (602) is provided with an inlet (603) at one end, and one end of the inlet (603) is connected to the channel formed by the stacked plates (604), and the other end of the inlet (603) is connected to the water guide pipe (12).

3. A spiral sludge dewatering device according to claim 1, characterized in that, The feeding channel (608) is a rectangular cavity structure with openings at both ends, and the inlet (609) of the feeding channel (608) is connected to the outlet of the dewatering tank (602). The extruder (605) is a conical cavity structure with openings at both ends.

4. A spiral sludge dewatering device according to claim 1, characterized in that, One end of the dewatering tank (602) is provided with a connecting support (606), and a drive motor (607) is provided on the upper part of the connecting support (606). The output shaft of the drive motor (607) is connected to the first spiral guide rod (612) through a coupling.

5. A spiral sludge dewatering device according to claim 1, characterized in that, One end of the fixed frame (1) is provided with a feeding trough (3), and a conveyor belt is provided inside the feeding trough (3). A fixed bracket (11) is provided on the upper part of the feeding trough (3), and a scraper strip (10) is provided inside the fixed bracket (11).

6. A spiral sludge dewatering device according to claim 5, characterized in that, The bottom of the feeding trough (3) is provided with an air guide hood (9), and the air guide hood (9) is connected to the heat source pump (4) through the air guide pipe (5) and the air guide pump (13).

7. A spiral sludge dewatering device according to claim 1, characterized in that, An observation port (610) is provided at the upper part of the feeding channel (608), and an acrylic glass plate is provided on the observation port (610).

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