Sludge granulation device

Abstract

The utility model discloses a sludge granulating device and relates to the field of sludge treatment. Comprising a feeding assembly and a granulating assembly, a discharging port of the feeding assembly is communicated with the granulating assembly, the granulating assembly comprises a granulating box, a granulating part and a driving part, a feeding port is formed in one side of the granulating box and communicated with an outlet of the feeding assembly, the granulating part and the driving part are arranged in the granulating box, and the driving part is arranged on the feeding port. The granulating part is arranged at a feeding hole of the granulating box, the driving part drives the granulating part to rotate, a granule outlet is formed in the bottom of the granulating box, and the granule outlet is formed in one side, far away from the feeding hole, of the granulating part. The sludge drying device has the advantages that the sizes of sludge particles entering the drying device are similar, the drying efficiency is high, the drying speed is high, the drying effect is good, and subsequent treatment of sludge is facilitated.

Description

Technical Field

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

[0002] Sludge treatment primarily targets the lower layer after wastewater sedimentation. Although it is a solid substance, it has a high water content. Therefore, sludge generally needs to be dewatered (pre-dewatered) before treatment, usually by compression to reduce the water content. After dewatering, the sludge is generally in cake or block form and is conveyed by an auger for further drying to facilitate transportation and subsequent processing. Typical drying equipment uses hot air drying, where a conveyor chain passes the sludge at a certain speed through a chamber filled with hot air. The heat of the hot air evaporates the moisture contained in the sludge. However, because the sludge does not fall evenly into the drying device during auger conveying, the sludge drying is uneven, which affects subsequent sludge processing and leads to low treatment efficiency. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a sludge granulation device.

[0004] This utility model is achieved using the following technical solution: a sludge granulation device, comprising a feeding component and a granulation component, wherein the discharge port of the feeding component is connected to the granulation component, the granulation component comprises a granulation box, a granulation section and a driving section, wherein a feed inlet is provided on one side of the granulation box and is connected to the outlet of the feeding component, the granulation section and the driving section are disposed inside the granulation box, the granulation section is located at the feed inlet of the granulation box, the driving section drives the granulation section to rotate, and a granulation outlet is provided at the bottom of the granulation box, the granulation outlet being located on the side of the granulation section away from the feed inlet.

[0005] The granulation unit includes a rotating plate, with a rotating shaft fixed at one end of the rotating plate away from the feed inlet. The rotating shaft is coaxially arranged with the rotating plate. The driving unit is connected to the rotating shaft to drive the rotating plate to rotate. Granulation perforations are formed on the rotating plate and are evenly distributed on the rotating plate.

[0006] The drive unit includes an electric motor, which is fixed inside the granulation box. The drive shaft of the electric motor is fixedly connected to the rotating shaft, and the electric motor drives the rotating shaft to rotate when it is started.

[0007] The bottom of the granulation box is provided with an installation plate, which is located on the side of the granulation outlet away from the feed inlet. The installation plate is perpendicular to the bottom of the granulation box and forms an installation area with the bottom of the granulation box. The motor is fixed on the installation plate and placed in the installation area. A shaft hole is opened on the installation plate, and the rotating shaft passes through the shaft hole and is connected to the drive shaft of the motor.

[0008] Below the granulation box is a tableting box, the top of the tableting box has a granulation inlet, the granulation outlet of the granulation box is connected to the granulation inlet of the tableting box, the tableting box is equipped with a tableting assembly, and the bottom of the tableting box has a tableting outlet.

[0009] The tableting assembly includes a pair of tableting rollers, the ends of which are rotatably connected to the side wall of the tableting box and extend out of the tableting box. One of the tableting rollers is driven to rotate by a drive motor fixed to the outer wall of the tableting box. The pair of tableting boxes are driven by gear meshing.

[0010] The feeding assembly includes a feeding cylinder, inside which a feeding auger is rotatably connected. A sludge inlet is provided on the feeding cylinder. When the feeding auger rotates, it transports the sludge from the sludge inlet through the feeding cylinder to the feed port.

[0011] Compared to existing technologies, this invention uses a motor to drive a rotating plate while conveying sludge. The rotating plate has granulation perforations. As the sludge passes through the perforations, it is squeezed and eventually cut by the inner wall of the granulation perforations due to the simultaneous rotation of the rotating plate. Since the rotation speed of the rotating plate and the sludge conveying rate are actually fixed, the sludge can be cut into granules of similar size for subsequent drying. Because the sludge particles entering the drying device are of similar size, the drying efficiency is high, the speed is fast, and the drying effect is good, which facilitates the subsequent processing of the sludge. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the sludge granulation device in this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of a sludge granulation device;

[0014] In the diagram: 1. Feeding assembly; 11. Feeding cylinder; 12. Feeding auger; 2. Granulation assembly; 21. Granulation box; 211. Feed inlet; 212. Granulation outlet; 22. Granulation section; 221. Rotating plate; 222. Rotating shaft; 223. Granulation perforation; 23. Drive section; 231. Motor; 232. Mounting plate; 233. Mounting area; 3. Tableting assembly; 31. Tableting box; 311. Granulation inlet; 312. Tableting outlet; 32. Tableting roller; 33. Drive motor; 34. Gear. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0016] Reference Figure 1-2 A sludge granulation device includes a feeding component 1 and a granulation component 2, with the discharge port of the feeding component 1 connected to the granulation component 2. The feeding component 1 can adopt a conventional feeding structure. Specifically, the feeding component 1 includes a feeding cylinder 11, with a feeding auger 12 rotatably connected inside the feeding cylinder 11. A sludge inlet is provided on the feeding cylinder 11. When the feeding auger 12 rotates, it conveys the sludge from the sludge inlet through the feeding cylinder 11 to the discharge port. During conveying, only the rotation speed of the feeding auger 12 needs to be controlled. In use, the sludge can be directly placed at the inlet 211, and as the feeding auger 12 rotates inside the feeding cylinder 11, the sludge is conveyed through the feeding cylinder 11 until it reaches the granulation component 2 for granulation. The granulation component 2 cuts the sludge into granules of approximately the same size for subsequent drying. Since the sludge particles entering the drying device are of similar size, the drying effect is better.

[0017] In this embodiment, the granulation assembly 2 includes a granulation box 21, a granulation section 22, and a drive section 23. A feed inlet 211 is provided on one side of the granulation box 21, communicating with the outlet of the feeding assembly 1. The granulation section 22 and the drive section 23 are located inside the granulation box 21. The granulation section 22 is positioned at the feed inlet of the granulation box 21, and the drive section 23 drives the granulation section 22 to rotate. A granulation outlet 212 is provided at the bottom of the granulation box 21, located on the side of the granulation section 22 away from the feed inlet 211. The granulation section 22 includes a rotating plate 221. A rotating shaft 222 is fixed to one end of the rotating plate 221 away from the feed inlet 211. The rotating shaft 222 is coaxially arranged with the rotating plate 221. The drive section 23 is connected to the rotating shaft 222, driving the rotating plate 221 to rotate. Granulation perforations 223 are provided on the rotating plate 221, and the granulation perforations 223 are evenly distributed on the rotating plate 221. The drive unit 23 includes a motor 231, which is fixed inside the granulation box 21. The drive shaft of the motor 231 is fixedly connected to the rotating shaft 222. When the motor 231 starts, it drives the rotating shaft 222 to rotate. During use, the sludge conveyed by the feeding auger 12 is concentrated at the feed inlet 211 of the granulation box 21. At this time, the feed inlet 211 is actually blocked by the rotating plate 221, so that the sludge can only pass through the granulation perforations 223 on the rotating plate 221. As the sludge passes through the perforations, the rotating plate 221 rotates at the same time, so the sludge is squeezed by the inner wall of the granulation perforations 223 and eventually cut. Since the rotation speed of the rotating plate 221 and the sludge conveying rate are actually fixed, the sludge can be cut into granules of similar size for subsequent drying. At this time, since the sludge particles entering the drying device are of similar size, the drying effect is better.

[0018] A mounting plate 232 is provided at the bottom of the granulation box 21. The mounting plate 232 is located on the side of the granulation outlet 212 away from the feed inlet 211. The mounting plate 232 is perpendicular to the bottom of the granulation box 21 and forms an installation area 233 with the bottom of the granulation box 21. The motor 231 is fixed on the mounting plate 232 and placed in the installation area 233. A shaft hole is opened on the mounting plate 232, and the rotating shaft 222 passes through the shaft hole and connects to the drive shaft of the motor 231. That is, the granulation box 21 is divided into two areas by the mounting plate 232, and the motor 231 is installed in the installation area 233 to form an independent space, so as to reduce the possibility of the motor 231 being contaminated by sludge, thereby reducing the probability of motor 231 failure.

[0019] To improve drying efficiency, a tableting box 31 can also be provided below the granulation box 21. The tableting box 31 has a granulation inlet 311 at its top, and the granulation outlet 212 of the granulation box 21 communicates with the granulation inlet 311 of the tableting box 31. A tableting assembly 3 is provided inside the tableting box 31, and a tablet outlet 312 is provided at its bottom. The tableting assembly 3 includes a pair of tableting rollers 32, the ends of which are rotatably connected to the side wall of the tableting box 31 and extend out of the tableting box 31. One of the tableting rollers 32 is driven to rotate by a drive motor 33 fixed to the outer wall of the tableting box 31. The pair of tableting boxes 31 are driven by meshing gears 34. When one of the pressing rollers 32 is driven by the drive motor 33 to rotate, the other pressing roller 32 will also rotate in the opposite direction due to the meshing transmission of the gear 34. In this embodiment, this is called relative rotation. The sludge particles formed by the granulation component 2 cutting the sludge will fall between the pair of pressing rollers 32. As the pressing rollers 32 rotate, the sludge particles are flattened to form sludge flakes, thereby increasing the contact surface with the subsequent drying device. Generally, a hot air dryer is selected for the drying device, that is, the shell of the drying device is filled with high-temperature hot air. Since the sludge that has already been formed into flakes has a larger contact surface with the hot air in the same amount of time, the drying speed is more efficient and faster than that of sludge particles.

[0020] Compared to existing technologies, in this invention, as the sludge passes through the perforations, the rotating plate 221 rotates simultaneously. Therefore, the sludge is squeezed and ultimately cut by the inner wall of the granulation perforations 223. Since the rotation speed of the rotating plate 221 and the sludge conveying rate are essentially fixed, the sludge can be cut into approximately sized granules for subsequent drying. Because the sludge particles entering the drying device are of similar size, the drying effect is good. The sludge particles formed by the granulation component 2 fall between a pair of pressing rollers 32. As the pressing rollers 32 rotate, the sludge particles are flattened into sludge flakes, increasing the contact surface with the subsequent drying device. Conventional drying devices use hot air dryers, where the drying device shell is filled with high-temperature hot air. Since the already flake-shaped sludge has a larger contact surface with the hot air in the same amount of time, the drying speed is higher and faster than drying sludge particles.

[0021] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A sludge granulation device, comprising a feeding assembly and a granulation assembly, characterized in that: The discharge port of the feeding component is connected to the granulation component. The granulation component includes a granulation box, a granulation section, and a driving section. A feed inlet is opened on one side of the granulation box and is connected to the outlet of the feeding component. The granulation section and the driving section are located inside the granulation box. The granulation section is placed at the feed inlet of the granulation box. The driving section drives the granulation section to rotate. A granulation outlet is opened at the bottom of the granulation box and is located on the side of the granulation section away from the feed inlet.

2. The sludge granulation device according to claim 1, characterized in that: The granulation unit includes a rotating plate, with a rotating shaft fixed at one end of the rotating plate away from the feed inlet. The rotating shaft is coaxially arranged with the rotating plate. The driving unit is connected to the rotating shaft to drive the rotating plate to rotate. Granulation perforations are formed on the rotating plate and are evenly distributed on the rotating plate.

3. The sludge granulation device according to claim 2, characterized in that: The drive unit includes an electric motor, which is fixed inside the granulation box. The drive shaft of the electric motor is fixedly connected to the rotating shaft, and the electric motor drives the rotating shaft to rotate when it is started.

4. The sludge granulation device according to claim 3, characterized in that: The bottom of the granulation box is provided with an installation plate, which is located on the side of the granulation outlet away from the feed inlet. The installation plate is perpendicular to the bottom of the granulation box and forms an installation area with the bottom of the granulation box. The motor is fixed on the installation plate and placed in the installation area. A shaft hole is opened on the installation plate, and the rotating shaft passes through the shaft hole and is connected to the drive shaft of the motor.

5. A sludge granulation device according to claim 2, characterized in that: Below the granulation box is a tableting box, the top of the tableting box has a granulation inlet, the granulation outlet of the granulation box is connected to the granulation inlet of the tableting box, the tableting box is equipped with a tableting assembly, and the bottom of the tableting box has a tableting outlet.

6. The sludge granulation device according to claim 5, characterized in that: The tableting assembly includes a pair of tableting rollers, the ends of which are rotatably connected to the side wall of the tableting box and extend out of the tableting box. One of the tableting rollers is driven to rotate by a drive motor fixed to the outer wall of the tableting box. The pair of tableting boxes are driven by gear meshing.

7. The sludge granulation device according to claim 1, characterized in that: The feeding assembly includes a feeding cylinder, inside which a feeding auger is rotatably connected. A sludge inlet is provided on the feeding cylinder. When the feeding auger rotates, it transports the sludge from the sludge inlet through the feeding cylinder to the feed port.

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