A compression granulation device for treating high-humidity fly ash solidified body

Abstract

A compression granulation device for treating high-humidity fly ash solidified matter includes a feeding mechanism, a transition mechanism, a discharging mechanism, an extrusion mechanism, a drive mechanism, a discharge hopper, and a support connected in sequence. The feeding mechanism connects to the outlet of a ton bag and adjusts the feeding rate; the transition mechanism is located below it to temporarily store materials and prevent caking; the discharging mechanism is connected below the transition mechanism to achieve quantitative material conveying and prevent dust generation; the extrusion mechanism is below the discharging mechanism to compress the material into moist cylindrical granules; the drive mechanism is connected to the rear of the extrusion mechanism to provide power; the discharge hopper is located below the extrusion mechanism to collect the discharged granules; and the support provides fixed support for all mechanisms. This device can significantly reduce the volume of high-humidity fly ash solidified matter and features uniform forming, resistance to clogging, and fast discharge speed.

Description

Technical Field

[0001] This utility model relates to incineration fly ash treatment technology, and in particular to a compression granulation device for treating high-humidity fly ash solidified body. Background Technology

[0002] With the increasing adoption of waste incineration technology both domestically and internationally, the amount of fly ash produced is also increasing. Incineration of municipal solid waste generates approximately 25% slag and 3%–5% fly ash by weight. Fly ash contains heavy metals such as Mn, Mg, Sn, Cd, Pb, and Cr, as well as dioxins and other organic compounds, and is classified as hazardous waste. Its safe disposal is receiving growing attention both domestically and internationally.

[0003] Currently, fly ash from waste needs to be mixed with a solidifying agent (chelating agent) for stabilization before landfilling to prevent the leaching of heavy metals from the interior into the environment. However, the apparent volume of the solidified fly ash obtained by existing technologies is still relatively large, with a low bulk density. It is prone to dust generation during transportation and landfill disposal, and occupies a large amount of space in landfills, resulting in low space utilization.

[0004] The current available solution is to extrude the solidified fly ash into granules, and then press the granules to form bricks. However, under the current process, the solidified fly ash has an increased moisture content due to moisture absorption, making it difficult to form during the extrusion granulation process, which seriously affects the effect of subsequent pressurization and volume reduction.

[0005] It should be noted that the information disclosed in the above background section is only used for understanding the background of this utility model, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] The main objective of this invention is to overcome the defects in the above-mentioned background technology and provide a compression granulation device for treating high-humidity fly ash solidified body.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A compression granulation device for treating high-humidity fly ash solidified body includes a feeding mechanism, a transition mechanism, a discharging mechanism, an extrusion mechanism, a driving mechanism, a discharge hopper, and a support connected in sequence.

[0009] The feeding mechanism is used to connect to the outlet of the ton bag and adjust the material feeding rate;

[0010] The transition mechanism is located below and connected to the feeding mechanism, and is used to temporarily store materials and prevent materials from caking.

[0011] The unloading mechanism is connected below the transition mechanism and is used to quantitatively transport materials and prevent dust.

[0012] The extrusion mechanism is connected below the unloading mechanism and is used to extrude the material into moist cylindrical particles;

[0013] The drive mechanism is connected to the rear of the extrusion mechanism and is used to drive the extrusion mechanism to work.

[0014] The discharge funnel is located below the extrusion mechanism and is used to collect and discharge the particles;

[0015] The bracket provides fixed support for the feeding mechanism, transition mechanism, unloading mechanism, extrusion mechanism, drive mechanism, and discharge hopper.

[0016] Furthermore, the feeding mechanism includes a ton bag outlet sleeve and an aperture valve. The ton bag outlet sleeve is used to connect to the ton bag outlet, and the aperture valve is located inside the ton bag outlet sleeve to adjust the feeding rate. The feeding mechanism also includes a compressed air pipe, which is located inside the ton bag outlet sleeve and extends upward into the ton bag outlet.

[0017] Furthermore, the transition mechanism includes a conical bin and a rupture roller shaft. The conical bin is located below and communicates with the outlet sleeve of the ton bag. The rupture roller shaft is located inside the conical bin, and its end is rotatably connected to the inner wall of the conical bin.

[0018] Furthermore, the conical hopper and the extrusion mechanism are respectively installed on the upper and lower parts of the support, the unloading mechanism is connected between the conical hopper and the extrusion mechanism, and the extrusion mechanism is connected to the drive mechanism installed on the support.

[0019] Furthermore, the unloading mechanism includes a star-shaped unloader and a feed hopper, the star-shaped unloader being connected below the conical hopper and the feed hopper being connected below the star-shaped unloader; the unloading mechanism also includes a feed hopper support, the feed hopper being embedded in the feed hopper support.

[0020] Furthermore, the drive mechanism includes a screw motor, a coupling, a first bearing, a second bearing, and a rotating shaft. The first bearing and the second bearing are fixed on the rotating shaft, and the screw motor drives the rotating shaft to rotate through the coupling.

[0021] Furthermore, the extrusion mechanism includes a bushing support and an eyelet cylinder; the rotating shaft is nested inside the bushing support, and the bushing support is nested inside the eyelet cylinder; the outside of the eyelet cylinder surrounds the feed hopper support.

[0022] Furthermore, the discharge funnel is inverted conical in shape and is located below the outlet side of the perforated cylinder.

[0023] Furthermore, the axial tilt angle of the perforated cylinder is 1 to 10°.

[0024] Furthermore, the diameter of the perforation in the perforated cylinder can be set to 5-15 mm.

[0025] Furthermore, the aperture valve is equipped with a horizontal movable handle, and the aperture valve opening size adjustment range is φ0~300mm.

[0026] This utility model has the following beneficial effects:

[0027] In embodiments of this utility model, the structure comprises a feeding mechanism, a transition mechanism, a discharging mechanism, an extrusion mechanism, a drive mechanism, a discharge hopper, and a support, connected in sequence. The feeding mechanism includes a ton bag outlet sleeve and a ring valve; the ton bag outlet sleeve is connected to the outlet of the ton bag, and the ring valve is located inside the ton bag outlet sleeve. The transition mechanism includes a conical hopper and a breaking roller shaft, located below and connected to the ton bag outlet sleeve. The discharging mechanism includes a star-shaped unloader and a feeding hopper; the star-shaped unloader is connected below the conical hopper, and the feeding hopper is connected below the star-shaped unloader. The extrusion mechanism is installed below the feeding hopper, connected to the drive mechanism behind it, and has a discharge hopper below it. All the aforementioned mechanisms are fixed to the support. This utility model allows high-humidity fly ash solidified material to enter the extrusion mechanism through the feeding and transition mechanisms, forming moist cylindrical particles, significantly reducing the volume of the fly ash solidified material. For high-humidity fly ash solidified material, it ensures uniform forming, is less prone to clogging, and has a fast discharge speed.

[0028] Other beneficial effects of the embodiments of this utility model will be further described below. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a compression granulation device for treating high-humidity fly ash solidified body according to an embodiment of the present invention;

[0030] Figure 2 for Figure 1 A schematic diagram of the extrusion mechanism and discharge hopper of the device shown;

[0031] Figure 3 for Figure 1 A schematic diagram of the structure of the perforated cylinder of the device shown;

[0032] Figure 4 for Figure 1 The diagram illustrates the process flow of the device shown.

[0033] Figure label:

[0034] 100. Feeding mechanism; 110. Compressed air pipeline; 120. Ton bag outlet sleeve; 130. Aperture valve; 200. Transition mechanism; 210. Conical hopper; 220. Arch-breaking roller shaft; 300. Unloading mechanism; 310. Rotary rotary valve; 320. Feed hopper; 330. Feed hopper support; 400. Extrusion mechanism; 410. Bushing support; 420. Perforated cylinder; 500. Drive mechanism; 510. Screw motor; 520. Coupling; 530. First bearing; 540. Second bearing; 550. Rotating shaft; 600. Discharge funnel; 700. Support. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below. It should be emphasized that the following description is merely exemplary and not intended to limit the scope and application of this utility model.

[0036] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component. Furthermore, a connection can be used for fixing, coupling, or communication.

[0037] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] See Figure 1 and Figure 2This utility model provides a compression granulation device for treating high-humidity fly ash solidified body, including a feeding mechanism 100, a transition mechanism 200, a discharge mechanism 300, an extrusion mechanism 400, a driving mechanism 500, a discharge funnel 600 and a support 700 connected in sequence. The feeding mechanism 100 is used to connect to the outlet of the ton bag and adjust the material feeding rate; the transition mechanism 200 is located below and connected to the feeding mechanism 100, and is used to temporarily store materials and prevent material caking; the unloading mechanism 300 is connected below the transition mechanism 200, and is used to quantitatively convey materials and prevent dust; the extrusion mechanism 400 is connected below the unloading mechanism 300, and is used to extrude materials into moist cylindrical particles; the drive mechanism 500 is connected behind the extrusion mechanism 400, and is used to drive the extrusion mechanism 400 to work; the discharge funnel 600 is located below the extrusion mechanism 400, and is used to collect and discharge particles; the bracket 700 fixes and supports the feeding mechanism 100, the transition mechanism 200, the unloading mechanism 300, the extrusion mechanism 400, the drive mechanism 500, and the discharge funnel 600.

[0040] In some embodiments, the feeding mechanism 100 includes a ton bag outlet sleeve 120 and an aperture valve 130. The ton bag outlet sleeve 120 is used to connect to the ton bag outlet, and the aperture valve 130 is disposed within the ton bag outlet sleeve 120 to adjust the feeding rate. The feeding mechanism 100 also includes a compressed air pipe 110, which is disposed within the ton bag outlet sleeve 120 and extends upward into the ton bag outlet. Preferably, the aperture valve 130 has a horizontal movable handle, and the opening size adjustment range of the aperture valve 130 is φ0~300mm.

[0041] In some embodiments, the transition mechanism 200 includes a conical bin 210 and a rupture roller shaft 220. The conical bin 210 is located below and communicates with the ton bag outlet sleeve 120. The rupture roller shaft 220 is located inside the conical bin 210, and its end is rotatably connected to the inner wall of the conical bin 210.

[0042] In some embodiments, the conical chamber 210 and the extrusion mechanism 400 are respectively installed on the upper and lower parts of the support 700, the unloading mechanism 300 is connected between the conical chamber 210 and the extrusion mechanism 400, and the extrusion mechanism 400 is connected to the drive mechanism 500 installed on the support 700.

[0043] In some embodiments, the unloading mechanism 300 includes a rotary valve 310 and a feed hopper 320. The rotary valve 310 is connected below the conical bin 210, and the feed hopper 320 is connected below the rotary valve 310. The unloading mechanism 300 also includes a feed hopper support 330, in which the feed hopper 320 is embedded. Preferably, the rotary valve 310 has an adjustable rotational speed.

[0044] In some embodiments, the drive mechanism 500 includes a screw motor 510, a coupling 520, a first bearing 530, a second bearing 540, and a rotating shaft 550. The first bearing 530 and the second bearing 540 are fixed to the rotating shaft 550, and the screw motor 510 drives the rotating shaft 550 to rotate via the coupling 520. Preferably, the drive mechanism 500 may be equipped with a stainless steel housing for dust protection.

[0045] See Figure 2 and Figure 3 In some embodiments, the extrusion mechanism 400 includes a bushing support 410 and a perforated cylinder 420; the rotating shaft 550 is nested inside the bushing support 410, and the bushing support 410 is nested inside the perforated cylinder 420; the perforated cylinder 420 is surrounded by the feed hopper support 330.

[0046] See Figure 2 In some embodiments, the discharge funnel 600 is inverted conical in shape and is located below the outlet side of the orifice cylinder 420.

[0047] In some embodiments, the axial tilt angle of the perforated cylinder 420 is 1 to 10°.

[0048] See Figure 3 In some embodiments, the diameter of the perforation in the perforated cylinder 420 can be set to 5-15 mm.

[0049] Preferably, the perforated cylinder 420 is made of a Cr and Ni alloy to increase its strength.

[0050] This invention produces a high-humidity fly ash solidified body that enters the extrusion mechanism through a feeding mechanism and a transition mechanism to form moist cylindrical particles, significantly reducing the volume of the fly ash solidified body. It has advantages such as ensuring uniform molding, preventing clogging, and providing fast discharge speed for high-humidity fly ash solidified bodies.

[0051] The following further describes specific embodiments of this utility model.

[0052] Reference Figure 1This invention illustrates a compression granulation device for treating high-humidity fly ash solidified body. In an embodiment of this invention, it is composed of a feeding mechanism 100, a transition mechanism 200, a discharge mechanism 300, an extrusion mechanism 400, a drive mechanism 500, a discharge funnel 600, and a support 700 connected in sequence. The feeding mechanism 100 includes a ton bag outlet sleeve 120 and an aperture valve 130. The ton bag outlet sleeve 120 is connected to the outlet of the ton bag, and the aperture valve 130 is located inside the ton bag outlet sleeve 120. The transition mechanism 200 includes a conical bin 210 and an arch-breaking roller shaft 220, which are located below the ton bag outlet sleeve 120 and communicate with it. The unloading mechanism 300 includes a star-shaped unloader 310 and a feeding hopper 320. The star-shaped unloader 310 is connected below the conical bin 210, and the feeding hopper 320 is connected below the star-shaped unloader 310. The extrusion mechanism 400 is installed below the feeding hopper 320. The extrusion mechanism 400 is connected to the drive mechanism 500 behind it, and the discharge mechanism 600 is located below it. All the mechanisms mentioned above are fixed to the bracket 700. The high-humidity fly ash solidified body of this invention enters the extrusion mechanism 400 through the feeding mechanism 100 and the transition mechanism 200 to form moist cylindrical particles, which greatly reduces the volume of fly ash solidified body. It can ensure uniform molding, is not easy to clog, and has a fast discharge speed for high-humidity fly ash solidified body.

[0053] The compression granulation apparatus for treating high-humidity fly ash solidified body in this exemplary embodiment will now be further described.

[0054] In this embodiment of the utility model, the feeding mechanism 100 includes a ton bag outlet sleeve 120 and an aperture valve 130. The ton bag outlet sleeve 120 is connected to the discharge port of the ton bag, constraining the discharge port of the double-port ton bag inside the sleeve to prevent dust from rising. The aperture valve 130 is located inside the ton bag outlet sleeve 120 and is used to adjust the rate at which fly ash is discharged from the ton bag. The feeding mechanism 100 also includes a compressed air pipe 110, which is located inside the ton bag outlet sleeve 120 and extends upward into the discharge port of the ton bag. It extends into the ton bag from the discharge port and injects compressed air into the ton bag to prevent the solidified fly ash inside the ton bag from forming caking and causing difficulty in discharging.

[0055] In one specific example, the aperture valve 130 is provided with a horizontal movable handle. The aperture valve 130 is operated by the horizontal movable handle to control its opening size. Specifically, the opening size adjustment range of the aperture valve 130 is φ0~300mm.

[0056] In this embodiment of the utility model, the transition mechanism 200 is located below the ton bag outlet sleeve 120, the conical hopper 210 is conical, the conical hopper 210 is connected to the ton bag outlet sleeve 120, and temporarily stores part of the fly ash solidified body, providing a buffer space for the speed coordination of the upstream aperture valve 130 and the downstream star-shaped unloader 310.

[0057] As an example, the conical bin 210 is equipped with a bridging roller 220, the end of which is rotatably connected to the inner wall of the conical bin 210. Rotation keeps the solidified fly ash within the conical bin 210 in a flowing state, preventing caking and ensuring proper material feeding.

[0058] In this embodiment of the utility model, the unloading mechanism 300 includes a star-shaped unloader 310 and a feed hopper 320. The star-shaped unloader 310 is connected to the bottom of the conical hopper 210, and the feed hopper 320 is connected to the bottom of the star-shaped unloader 310, ensuring smooth flow of the solidified fly ash between the upstream star-shaped unloader 310 and the downstream extrusion mechanism 400, and preventing dust.

[0059] In this embodiment of the present invention, the extrusion mechanism 400 includes a bushing support 410 and a perforated cylinder 420. The extrusion mechanism 400 is located below the feed hopper 320. The perforated cylinder 420 rotates inside the bushing support 410. Under the combined action of the perforated cylinder 420 and the bushing support 410, the fly ash solidified body is extruded, and the air in the gaps of the fly ash is discharged, so that it forms moist cylindrical particles.

[0060] In this embodiment of the invention, the drive mechanism 500 for driving the perforated cylinder 420, in conjunction with the target discharge rate, quantitatively conveys the solidified fly ash accumulated in the bushing support 410. In a specific embodiment, the screw motor 510 rotates, driving the perforated cylinder 420 to rotate through the linkage of the coupling 520 and the first bearing 530 and the second bearing 540. The solidified fly ash is squeezed between the two perforated cylinders 420, expelling the air in the material gaps and entering the internal cavity of the perforated cylinder 420 to form moist cylindrical granular material, which is then discharged through the discharge funnel 600.

[0061] The working principle of this invention is as follows: High-humidity fly ash solidified material enters the transition mechanism through the feeding mechanism, where the feeding rate is regulated by an aperture valve; the high-humidity fly ash solidified material then enters the extrusion mechanism through the discharge structure; within the extrusion mechanism, the high-humidity fly ash solidified material is extruded into moist cylindrical granular material and then discharged. This invention significantly reduces the volume of fly ash solidified material and, for high-humidity fly ash solidified material, ensures uniform forming, is less prone to clogging, and has a fast discharge speed.

[0062] The above description, in conjunction with specific / preferred embodiments, provides a further detailed explanation of the present invention and should not be construed as limiting the specific implementation of the present invention to these descriptions. For those skilled in the art, various substitutions or modifications can be made to these described embodiments without departing from the concept of the present invention, and all such substitutions or modifications should be considered within the protection scope of the present invention. In the description of this specification, the reference to terms such as "an embodiment," "some embodiments," "preferred embodiment," "example," "specific example," or "some examples," etc., indicates that the specific features, structures, materials, or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples. Without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification and the features of different embodiments or examples. Although embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations may be made herein without departing from the scope of protection of the patent application.

Claims

1. A compression granulation device for treating high-humidity fly ash solidified body, characterized in that, It includes a feeding mechanism, a transition mechanism, a discharge mechanism, a squeezing mechanism, a drive mechanism, a discharge hopper, and a support connected in sequence; The feeding mechanism is used to connect to the outlet of the ton bag and adjust the material feeding rate; The transition mechanism is located below and connected to the feeding mechanism, and is used to temporarily store materials and prevent materials from caking. The unloading mechanism is connected below the transition mechanism and is used to quantitatively transport materials and prevent dust from being generated. The extrusion mechanism is connected below the unloading mechanism and is used to extrude the material into moist cylindrical particles; The drive mechanism is connected to the rear of the extrusion mechanism and is used to drive the extrusion mechanism to work. The discharge funnel is located below the extrusion mechanism and is used to collect and discharge the particles; The extrusion mechanism includes two perforated cylinders and a bushing support, the bushing support being nested inside the perforated cylinders; the diameter of the perforations in the perforated cylinders is 5~15mm; The drive mechanism is connected to the rear of the extrusion mechanism. The drive mechanism includes a rotating shaft, which is nested in the bushing bracket. The rotating shaft drives the perforated cylinder to rotate. The material is squeezed between the two perforated cylinders and enters the internal cavity of the perforated cylinders, forming moist cylindrical particles. The bracket provides fixed support for the feeding mechanism, transition mechanism, unloading mechanism, extrusion mechanism, drive mechanism, and discharge hopper.

2. The compression granulating apparatus according to claim 1, characterized by The feeding mechanism includes a ton bag outlet sleeve and an aperture valve. The ton bag outlet sleeve is used to connect to the ton bag outlet, and the aperture valve is located inside the ton bag outlet sleeve to adjust the feeding rate. The feeding mechanism also includes a compressed air pipe, which is located inside the ton bag outlet sleeve and extends upward into the ton bag outlet.

3. The compression granulating apparatus according to claim 2, characterized by The transition mechanism includes a conical bin and a rupture roller shaft. The conical bin is located below and communicates with the outlet sleeve of the ton bag. The rupture roller shaft is located inside the conical bin, and its end is rotatably connected to the inner wall of the conical bin.

4. The compression granulating apparatus according to claim 3, characterized by The conical hopper and the extrusion mechanism are respectively installed on the upper and lower parts of the support. The unloading mechanism is connected between the conical hopper and the extrusion mechanism. The extrusion mechanism is connected to the drive mechanism installed on the support.

5. The compression granulating apparatus according to claim 3, wherein The unloading mechanism includes a star-shaped unloader and a feed hopper. The star-shaped unloader is connected to the bottom of the conical hopper, and the feed hopper is connected to the bottom of the star-shaped unloader. The unloading mechanism also includes a feed hopper support, in which the feed hopper is embedded.

6. The compression granulating apparatus according to claim 1, wherein The drive mechanism includes a screw motor, a coupling, a first bearing, a second bearing, and a rotating shaft. The first bearing and the second bearing are fixed on the rotating shaft, and the screw motor drives the rotating shaft to rotate through the coupling.

7. The compression granulation apparatus according to claim 1, characterized in that, The discharge funnel is inverted conical in shape and is located below the outlet side of the perforated cylinder.

8. The compression granulation apparatus according to claim 1, characterized in that, The axial tilt angle of the perforated cylinder is 1~10°.

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