An efficient dehydration device for sewage treatment

Abstract

The present invention relates to the field of dehydration devices, and particularly to an efficient dehydration device for sewage treatment, which comprises a mounting barrel, a plurality of dehydration barrels and a driving mechanism. The mounting barrel is vertically arranged, and a fixed gear ring is fixedly provided at the upper opening of the mounting barrel. There is a rotating frame inside the mounting barrel; the rotating frame is rotatably arranged inside the mounting barrel; the plurality of dehydration barrels are circumferentially distributed along the axis of the mounting barrel; the dehydration barrels are rotatably arranged on the rotating frame, and a self-rotating gear ring is fixedly provided at the upper opening of the dehydration barrel; the self-rotating gear ring meshes with the fixed gear ring; the driving mechanism is used to drive the rotating frame to rotate. The arrangement of the plurality of dehydration barrels avoids the accumulation of materials during dehydration. While the materials are affected by the centrifugal force of the revolution of the dehydration barrels, they are also affected by the centrifugal force of self-rotation, thereby further improving the dehydration efficiency of the materials.

Description

Technical Field

[0001] The present invention relates to the field of dehydration devices, and particularly to an efficient dehydration device for sewage treatment. Background Art

[0002] Currently, the amount of sludge generated from sewage treatment is increasing year by year. Sludge dehydration is a key link in the sewage treatment process, and its goal is to reduce the moisture content of sludge through physical or chemical methods, thereby reducing the cost and environmental risks of subsequent treatment. Traditional dehydration technologies have problems such as low efficiency, high energy consumption, and poor adaptability. For example, the moisture content of sludge after dehydration by existing equipment is usually still as high as 75% - 85%, which is difficult to meet environmental protection requirements; a large amount of electric energy is consumed during the mechanical dehydration process, and the use of chemical conditioning agents (such as flocculants) increases the operating cost; traditional equipment has weak adaptability to changes in sludge properties and is prone to problems such as blockage and reduction in processing capacity. Existing dehydration equipment mainly includes bag filter presses, centrifuges, plate and frame filter presses, etc. Among them, centrifugal dehydration equipment is widely used in production and life due to its high - efficiency dehydration effect. Existing dehydration equipment all dehydrates through a single cylindrical centrifuge. Although most of the water on the surface of the material can be removed, due to the irregular shape of the material, water will still adhere to its surface to varying degrees, and the water remaining on the surface of the material takes a long time to be completely removed, thereby resulting in a relatively low overall dehydration efficiency. Summary of the Invention

[0003] The present invention provides an efficient dehydration device for sewage treatment to solve the problem of low efficiency of existing dehydration devices.

[0004] The following technical solutions are adopted for an efficient dehydration device for sewage treatment according to the present invention:

[0005] An efficient dehydration device for sewage treatment includes an installation barrel, a plurality of dehydration barrels, and a driving mechanism; the installation barrel is vertically arranged, and a fixed toothed ring is fixedly provided at the upper - end opening of the installation barrel; there is a rotating frame inside the installation barrel; the rotating frame is rotatably arranged inside the installation barrel; a plurality of dehydration barrels are circumferentially and evenly distributed along the axis of the installation barrel; the dehydration barrels are rotatably arranged on the rotating frame, and a self - rotating toothed ring is fixedly provided at the upper - end opening of the dehydration barrel; the self - rotating toothed ring meshes with the fixed toothed ring; the driving mechanism is used to drive the rotating frame to rotate.

[0006] Further, each dehydration barrel includes a plurality of centrifugal cylinders and a plurality of conversion gears; the plurality of centrifugal cylinders are arranged in sequence along the vertical direction; the centrifugal cylinders are rotatably arranged on the rotating frame, and two adjacent centrifugal cylinders can rotate relative to each other; the self - rotating toothed ring is located on the uppermost centrifugal cylinder; a conversion toothed ring is respectively provided at the connection of two adjacent centrifugal cylinders; the conversion gears are rotatably arranged on the rotating frame and are located at the connection of two adjacent centrifugal cylinders; two adjacent conversion toothed rings mesh with one conversion gear.

[0007] Further, the rotating frame includes an upper rotating ring, a lower rotating ring, a main shaft, and a plurality of connecting rods; the main shaft is vertically arranged and rotatably inserted at the center of the installation barrel, and the driving mechanism is used to drive the main shaft to rotate; the lower rotating ring is fixedly sleeved on the lower end of the main shaft; the upper rotating ring is sleeved on the upper end of the main shaft; the plurality of connecting rods are evenly distributed circumferentially along the upper rotating ring; the upper end of the connecting rod is fixedly connected to the upper rotating ring, and the lower end is connected to the lower rotating ring; a plurality of connecting rings are evenly distributed vertically along each connecting rod; each centrifugal cylinder is rotatably arranged on a connecting ring.

[0008] Further, the upper rotating ring is slidably sleeved on the main shaft; the lower end of the connecting rod is slidably inserted into the lower rotating ring; hydraulic cavities are provided inside both the connecting rod and the connecting ring, and the hydraulic cavities are filled with hydraulic oil; the hydraulic cavities inside the connecting ring and the connecting rod are interconnected, so that when the connecting rod slides downward relative to the lower rotating ring, the pressure in the hydraulic cavity inside the connecting ring increases; a plurality of baffle plates are evenly distributed circumferentially along the axis of the centrifugal cylinder on the inner wall of each centrifugal cylinder; the baffle plates are vertically arranged and can be telescoped along the radial direction of the centrifugal cylinder; the baffle plates are communicated with the connecting rings on the centrifugal cylinder, so that when the pressure in the hydraulic cavity of the connecting ring increases, the baffle plates extend toward the axis of the centrifugal cylinder.

[0009] Further, the bottom of the lowermost centrifugal cylinder is a bearing plate, and a rotating shaft is provided along the radial direction of the bearing plate; the bearing plate is rotatably installed on the centrifugal cylinder through the rotating shaft; a counterweight is provided on one side of the rotating shaft on the bearing plate, and a limiting rod is provided on the other side, so that when the bearing plate is in a horizontal position, the lower ends of the limiting rod and the baffle plate are in contact.

[0010] Further, the driving mechanism includes a driving motor and a transmission belt; the driving motor is fixedly arranged on the side wall of the installation cylinder; the transmission belt connects the upper end of the main shaft and the output shaft of the driving motor.

[0011] Further, a guiding plate is provided inside the installation barrel; the guiding plate is located below the dehydration barrel, the guiding plate is in a sieve mesh shape and is inclined; a discharge port is provided on the side wall of the installation barrel, and the discharge port is located on one side of the lowest point of the guiding plate.

[0012] The beneficial effects of the present invention are as follows: An efficient dehydration device for sewage treatment according to the present invention has an installation barrel, a plurality of dehydration barrels, and a driving mechanism, and the material needs to be introduced into the dehydration barrel for dehydration treatment. The driving device is used to drive the rotating frame to rotate, thereby driving the plurality of dehydration barrels to revolve around the axis of the installation barrel. Since the self-rotating gear ring and the fixed gear ring are engaged, the dehydration barrels rotate while revolving. The setting of the plurality of dehydration barrels avoids the accumulation of materials during dehydration. While the materials are affected by the centrifugal force of the revolution of the dehydration barrels, they are also affected by the centrifugal force of self-rotation, thereby further improving the dehydration efficiency of the materials. Description of the Drawings

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 Structural schematic diagram of an embodiment of an efficient dehydration device for sewage treatment according to the present invention;

[0015] Figure 2 Exploded view of an embodiment of an efficient dehydration device for sewage treatment according to the present invention;

[0016] Figure 3 Cross-sectional view of the installation barrel of an embodiment of an efficient dehydration device for sewage treatment according to the present invention;

[0017] Figure 4 Structural schematic diagram of the rotating frame of an embodiment of an efficient dehydration device for sewage treatment according to the present invention;

[0018] Figure 5 For Figure 4 Partial enlarged view at A in

[0019] Figure 6 Exploded view of the dehydration barrel of an embodiment of an efficient dehydration device for sewage treatment according to the present invention;

[0020] Figure 7 Structural schematic diagram of the centrifugal barrel of an embodiment of an efficient dehydration device for sewage treatment according to the present invention;

[0021] In the figure: 100, installation barrel; 111, discharge port; 112, guide plate; 113, annular groove; 114, fixed tooth ring; 115, water guide hopper; 120, drive motor; 121, output shaft; 130, transmission belt; 200, rotating frame; 210, upper rotating ring; 211, connecting rod; 220, main shaft; 230, connecting ring; 231, outer ring; 240, connecting rod; 250, conversion gear; 260, lower rotating ring; 300, dehydration barrel; 310, centrifugal barrel; 312, self-rotating tooth ring; 320, conversion tooth ring; 332, inner ring; 334, baffle plate; 340, bearing plate; 341, rotating shaft; 342, limiting rod. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0023] An embodiment of an efficient dehydration device for sewage treatment according to the present invention is as follows Figures 1 to 7 shown, including an installation barrel 100, a plurality of dehydration barrels 300, and a driving mechanism. The installation barrel 100 is vertically arranged, and a fixed gear ring 114 is fixedly provided at the upper opening of the installation barrel 100. There is a rotating frame 200 inside the installation barrel 100, and the rotating frame 200 is rotatably arranged inside the installation barrel 100. The plurality of dehydration barrels 300 are circumferentially evenly distributed along the axis of the installation barrel 100. When introducing materials, the amount of materials introduced into the plurality of dehydration barrels 300 is the same to prevent eccentricity when the dehydration barrels 300 rotate. The setting of the plurality of dehydration barrels 300 avoids the accumulation of materials during dehydration, thereby reducing the dehydration efficiency of the materials. The dehydration barrel 300 is rotatably arranged on the rotating frame 200, and a self-rotating gear ring 312 is fixedly provided at the upper opening of the dehydration barrel 300. The self-rotating gear ring 312 meshes with the fixed gear ring 114. Thus, when the rotating frame 200 rotates, it drives the plurality of dehydration barrels 300 to revolve around the axis of the installation barrel 100. Since the self-rotating gear ring 312 meshes with the fixed gear ring 114, the dehydration barrel 300 rotates while revolving, so that the materials in the dehydration barrel 300 are dehydrated by rotation while revolving. The driving mechanism is used to drive the rotation of the rotating frame 200.

[0024] In this embodiment, as Figures 2 to 7 shown, each dehydration barrel 300 includes a plurality of centrifugal cylinders 310 and a plurality of conversion gears 250. The plurality of centrifugal cylinders 310 are arranged in sequence in the vertical direction. The centrifugal cylinder 310 is rotatably arranged on the rotating frame 200, and two adjacent centrifugal cylinders 310 can rotate relative to each other. The self-rotating gear ring 312 is located on the uppermost centrifugal cylinder 310. A conversion gear ring 320 is respectively provided at the connection of two adjacent centrifugal cylinders 310, and the two adjacent conversion gear rings 320 are in contact to prevent material splashing. The conversion gear 250 is rotatably arranged on the rotating frame 200 and is located at the connection of two adjacent centrifugal cylinders 310; two adjacent conversion gear rings 320 mesh with a conversion gear 250, so that when one centrifugal cylinder 310 rotates, it drives the adjacent centrifugal cylinder 310 to rotate in the opposite direction through the conversion gear 250. The rotation directions of two adjacent centrifugal cylinders 310 on the same dehydration barrel 300 are opposite, so that the materials in the dehydration barrel 300 are driven by the two adjacent centrifugal cylinders 310 to rotate in opposite directions, thereby preventing the accumulation of materials in the centrifugal cylinder 310 and simultaneously preventing the excessive eccentric force on the centrifugal cylinder 310.

[0025] In this embodiment, as Figures 4 to 5 shown, the rotating frame 200 includes an upper rotating ring 210, a lower rotating ring 260, a main shaft 220, and a plurality of connecting rods 240. The main shaft 220 is vertically arranged and rotatably inserted at the axis of the mounting barrel 100. The driving mechanism is used to drive the main shaft 220 to rotate. The lower rotating ring 260 is fixedly sleeved on the lower end of the main shaft 220. A ring groove 113 is provided on the mounting barrel 100, and the lower rotating ring 260 is rotatably arranged in the ring groove 113. Both the upper rotating ring 210 and the lower rotating ring 260 are connected to the main shaft 220 through a plurality of connecting rods 211. The upper rotating ring 210 is sleeved on the upper end of the main shaft 220. The plurality of connecting rods 240 are circumferentially distributed along the upper rotating ring 210. The upper ends of the connecting rods 240 are fixedly connected to the upper rotating ring 210, and the lower ends are connected to the lower rotating ring 260. The conversion gear 250 is rotatably arranged on the connecting rod 240. A plurality of connecting rings 230 are vertically distributed on each connecting rod 240, and each centrifugal cylinder 310 is rotatably arranged on a connecting ring 230. Further, the upper rotating ring 210 is slidably sleeved on the main shaft 220, the lower ends of the connecting rods 240 are slidably inserted into the lower rotating ring 260, and a plurality of insertion bumps are provided on the lower rotating ring 260. The lower ends of the connecting rods 240 are slidably inserted onto the insertion bumps. Hydraulic cavities are provided inside both the connecting rods 240 and the connecting rings 230, and the hydraulic cavities are filled with hydraulic oil.

[0026] The hydraulic chambers in the connecting ring 230 and the connecting rod 240 are in communication with each other. When the connecting rod 240 slides downward relative to the lower rotating ring 260, the pressure in the hydraulic chamber inside the connecting ring 230 increases, so that when the connecting rod 240 slides downward, the plugging lug slides upward into the corresponding connecting rod 240, thereby enabling the hydraulic oil in the connecting rod 240 to enter the connecting ring 230. Specifically, the connecting ring 230 includes an inner ring 332 and an outer ring 231. The outer ring 231 is fixedly connected to the connecting rod 240, and the inner ring 332 is rotatably arranged on the outer ring 231. The cavity defined between the inner ring 332 and the outer ring 231 is the hydraulic chamber, and the inner ring 332 is fixedly sleeved on the centrifugal cylinder 310. A plurality of baffle plates 334 are circumferentially distributed along the axis of the centrifugal cylinder 310 on the inner wall of each centrifugal cylinder 310; the baffle plates 334 are vertically arranged and can be telescoped in the radial direction of the centrifugal cylinder 310. The baffle plates 334 are telescopic plates and can be telescoped in the radial direction of the centrifugal cylinder 310. The baffle plates 334 are in communication with the connecting ring 230 on the centrifugal cylinder 310, so that when the pressure in the hydraulic chamber of the connecting ring 230 increases, the baffle plates 334 extend toward the axis of the centrifugal cylinder 310. A telescopic cavity is provided inside the baffle plates 334, and the telescopic cavity is in communication with the hydraulic chamber of the connecting ring 230. When the pressure in the connecting ring 230 increases, the hydraulic oil enters the telescopic cavity, thereby enabling the baffle plates 334 to increase in length in the radial direction of the centrifugal cylinder 310. The more materials there are in the dewatering bucket 300, the longer the baffle plates 334 extend, and the more materials are dispersed. The overall center of gravity offset on the corresponding centrifugal cylinder 310 is less, thereby balancing the problem of rotational eccentricity of the entire device caused by inconsistent weights of multiple groups of centrifugal cylinders 310.

[0027] In this embodiment, as Figures 1 to 3 shown, the bottom of the lowermost centrifugal cylinder 310 is a bearing plate 340. The bearing plate 340 is provided with a rotating shaft 341 along its radial direction; the bearing plate 340 is rotatably mounted on the centrifugal cylinder through the rotating shaft 341; a counterweight is provided on the bearing plate 340 on one side of the rotating shaft 341, and a limiting rod 342 is provided on the other side. When the bearing plate 340 is in a horizontal position, the lower end of the limiting rod 342 abuts against the baffle plate 334. When the materials in the dewatering bucket 300 are dehydrated, manually lower the bearing plate 340 on the side of the limiting rod 342, so that the bearing plate 340 rotates toward the side of the limiting rod 342 with the rotating shaft 341 as the axis, thereby pouring out the materials in the dewatering bucket 300.

[0028] The driving mechanism includes a driving motor 120 and a transmission belt 130; the driving motor 120 is fixedly arranged on the side wall of the mounting cylinder; the transmission belt 130 connects the upper end of the main shaft 220 and the output shaft 121 of the driving motor 120. A material guiding plate 112 is arranged inside the mounting barrel 100; the material guiding plate 112 is located below the dewatering barrel 300, the material guiding plate 112 is in a sieve mesh shape and is inclined; a discharge port 111 is arranged on the side wall of the mounting barrel 100, the discharge port 111 is located on one side of the lowest point of the material guiding plate 112. Particularly, a water guiding hopper 115 is arranged at the bottom of the mounting barrel 100, the water guiding hopper 115 is in a funnel shape and is located below the material guiding plate 112.

[0029] During operation, the driving motor 120 is started, and the driving motor 120 drives the main shaft 220 to rotate through the transmission belt 130, thereby driving the rotating frame 200 to rotate. The rotating frame 200 drives a plurality of dewatering barrels 300 to revolve around the main shaft 220, and due to the meshing of the self-rotating gear ring 312 and the fixed gear ring 114, the dewatering barrel 300 rotates while revolving. When the uppermost centrifugal cylinder 310 on the dewatering barrel 300 rotates, it drives the centrifugal cylinder 310 below it to rotate in the opposite direction through the conversion gear ring 320 on the centrifugal cylinder 310 and the conversion gear 250 on the connecting rod 240. The arrangement of a plurality of conversion gear rings 320 makes the rotation directions of two adjacent centrifugal cylinders 310 on the same dewatering barrel 300 opposite.

[0030] The materials to be dehydrated are respectively introduced into a plurality of dewatering barrels 300, and the mass distribution of the materials in each dewatering barrel 300 is relatively uniform. The materials are dehydrated as the dewatering barrel 300 rotates and revolves. The revolution of the dewatering barrel 300 causes the materials to gather radially on the side away from the main shaft 220. Under the action of the self-rotation of adjacent centrifugal cylinders 310, the baffle plates 334 on the centrifugal cylinders 310 disperse and turn over the gathered materials, so that the overall center of the centrifugal cylinder 310 tends to be stable, and at the same time, the dewatering efficiency is improved. When the weight of the materials in the centrifugal cylinder 310 is greater, the connecting rod 240 slides downward relative to the lower rotating ring 260, and then under the action of the hydraulic cavity in the connecting rod 240 and the connecting ring 230, the baffle plate 334 extends longer along the radial direction of the centrifugal cylinder 310, and the more materials it disperses, and the overall center of gravity of the set of centrifugal cylinders 310 deviates less, so as to balance the problem of the rotation eccentricity of the entire device caused by the inconsistent weights of multiple sets of centrifugal cylinders 310.

[0031] When the materials in the dewatering barrel 300 are dehydrated, the bearing plate 340 on one side of the limiting rod 342 is pushed, so that the bearing plate 340 rotates around the rotating shaft 341 to the side of the limiting rod 342, and then the materials in the dewatering barrel 300 are poured out. The materials pass through the material guiding plate 112 and are discharged from the discharge port 111, and the water separated is discharged from the water guiding hopper 115.

[0032] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An efficient dehydration device for sewage treatment, characterized in that: include: The installation barrel is vertically arranged, and a fixed gear ring is fixed at the upper opening of the installation barrel; a rotating frame is arranged in the installation barrel; and the rotating frame is rotatably arranged in the installation barrel; A plurality of dehydration barrels are evenly distributed along the axis of the installation barrel; the dehydration barrels are rotatably arranged on the rotating frame, and a self-rotating gear ring is fixed at the opening of the upper end of the dehydration barrel; the self-rotating gear ring is meshed with the fixed gear ring; A driving mechanism, the driving mechanism is used to drive the rotating frame to rotate; Each dehydration barrel includes a plurality of centrifugal cylinders and a plurality of conversion gears; the plurality of centrifugal cylinders are arranged in sequence along the vertical direction; the centrifugal cylinders are rotatably arranged on the rotating frame, and two adjacent centrifugal cylinders can rotate relative to each other; the self-rotating gear ring is located on the uppermost centrifugal cylinder; a conversion gear ring is respectively provided at the connection of two adjacent centrifugal cylinders; the conversion gear is rotatably arranged on the rotating frame and is located at the connection of two adjacent centrifugal cylinders; Two adjacent conversion gear rings are meshed with a conversion gear; The rotating frame includes an upper rotating ring, a lower rotating ring, a main shaft and a plurality of connecting rods; the main shaft is vertically arranged and rotatably inserted at the axis center of the mounting barrel, and the driving mechanism is used to drive the main shaft to rotate; the lower rotating ring is fixedly sleeved on the lower end of the main shaft; the upper rotating ring is sleeved on the upper end of the main shaft; a plurality of connecting rods are evenly distributed along the circumference of the upper rotating ring; the upper end of the connecting rod is fixedly connected to the upper rotating ring, and the lower end is connected to the lower rotating ring; each connecting rod is evenly distributed with a plurality of connecting rings in the vertical direction; each centrifugal cylinder is rotatably arranged on a connecting ring.

2. The high-efficiency dehydration equipment for sewage treatment according to claim 1, characterized in that: The upper rotating ring can be slidably mounted on the main shaft; the lower end of the connecting rod can be slidably connected to the lower rotating ring; hydraulic chambers are provided inside the connecting rod and the connecting ring, and the hydraulic chambers are filled with hydraulic oil; the hydraulic chambers in the connecting ring and the connecting rod are connected to each other, so that when the connecting rod slides downward relative to the lower rotating ring, the pressure in the hydraulic chamber inside the connecting ring increases; a plurality of baffle plates are evenly distributed on the inner wall of each centrifugal cylinder along the circumference of the axis of the centrifugal cylinder; the baffle plates are vertically arranged and can be extended and retracted in the radial direction of the centrifugal cylinder; the baffle plates are connected to the connecting ring on the centrifugal cylinder, so that when the pressure in the hydraulic chamber of the connecting ring increases, the baffle plates are extended toward the axis of the centrifugal cylinder.

3. The high-efficiency dehydration equipment for sewage treatment according to claim 1 is characterized in that: The bottom of the lowest centrifuge cylinder is a carrying plate, and a rotating shaft is provided along the radial direction of the carrying plate; the carrying plate is rotatably mounted on the centrifuge cylinder through the rotating shaft; a counterweight block is provided on the carrying plate on one side of the rotating shaft, and a limit rod is provided on the other side, so that when the carrying plate is in a horizontal position, the limit rod and the lower end of the baffle plate abut against each other.

4. The high-efficiency dehydration equipment for sewage treatment according to claim 1, characterized in that: The driving mechanism comprises a driving motor and a transmission belt; the driving motor is fixedly arranged on the side wall of the mounting cylinder; the transmission belt connects the upper end of the main shaft and the output shaft of the driving motor.

5. The high-efficiency dehydration equipment for sewage treatment according to claim 1, characterized in that: A material guide plate is arranged in the installation barrel; the material guide plate is located below the dehydration barrel, is screen-shaped, and is arranged obliquely; a material discharge port is arranged on the side wall of the installation barrel, and is located on one side of the lowest point of the material guide plate.

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