A compression granulation device for low-moisture fly ash solidified body treatment

Abstract

A kind of compression granulation device for low humidity fly ash solidification body processing, including feed mechanism, transition mechanism, unloading mechanism, extrusion mechanism, cutting mechanism, drive mechanism, control mechanism, discharge mechanism and support connected in sequence.Feed mechanism connects ton bag discharge port and adjusts the discharge rate;Transition mechanism is arranged below it, temporarily stores material and prevents caking;Unloading mechanism is below transition mechanism, quantitative delivery and dust prevention;Extrusion mechanism is connected to unloading mechanism, and the material is pressed into strip;Cutting mechanism is in front of extrusion mechanism, and long strip is cut into granules;Drive mechanism provides power behind extrusion mechanism;Control mechanism regulates the operation of drive and cutting mechanism;Discharge mechanism collects and discharges granules;Support fixes and supports all mechanisms.The device can greatly reduce the volume, ensure that low humidity fly ash solidification body is uniformly formed, not easy to block, and the discharge speed is adjustable.

Description

Technical Field

[0001] This utility model relates to incineration fly ash treatment technology, and in particular to a compression granulation device for treating low-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 may have a low local moisture content due to insufficient mixing, 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 low-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 low-humidity fly ash solidified body includes a feeding mechanism, a transition mechanism, a discharging mechanism, an extrusion mechanism, a cutting mechanism, a driving mechanism, a control mechanism, a discharge mechanism, 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 from being generated.

[0012] The extrusion mechanism is connected below the unloading mechanism and is used to extrude the material into a long strip shape;

[0013] The cutting mechanism is connected in front of the extrusion mechanism and is used to cut long strips of material into granules;

[0014] The drive mechanism is connected to the rear of the extrusion mechanism and is used to drive the extrusion mechanism to work.

[0015] The control mechanism is used to control the operating status of the drive mechanism and the cutting mechanism;

[0016] The discharge mechanism is located below the cutting mechanism and is used to collect and discharge particles;

[0017] The bracket provides fixed support for the feeding mechanism, transition mechanism, unloading mechanism, extrusion mechanism, cutting mechanism, drive mechanism, control mechanism, and discharge mechanism.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] Furthermore, the unloading mechanism includes a star-shaped unloader and a feed hopper, wherein the star-shaped unloader is connected below the conical hopper and the feed hopper is connected below the star-shaped unloader.

[0022] Furthermore, the extrusion mechanism includes an outer cylinder and a screw, the outer cylinder being connected below the feed hopper, and the screw being located inside the outer cylinder.

[0023] Furthermore, the drive mechanism includes a screw motor, a coupling, a bearing, and a bearing housing. The bearing is disposed within the bearing housing, and the screw motor drives the screw to rotate through the coupling and the bearing.

[0024] Furthermore, the cutting mechanism includes a circular perforated disc, a cutter, a disc support, and a cutting motor; the circular perforated disc is fixed between the outer cylinder and the disc support, the cutter is fixed to the cutting motor, and the disc support is fixed to the cutting motor; the cutting motor drives the cutter to rotate and cut the elongated material passing through the circular perforated disc.

[0025] Furthermore, the control mechanism includes a screw motor control panel and a cutting motor control panel. The screw motor control panel is used to control the start, stop, and speed of the screw motor, and the cutting motor control panel is used to control the start, stop, and speed of the cutting motor.

[0026] Furthermore, the discharge mechanism is inverted conical in shape, located directly below the perforated plate support, and embedded within the support.

[0027] The present invention has the following beneficial effects:

[0028] In embodiments of this utility model, the structure comprises a feeding mechanism, a transition mechanism, a discharging mechanism, a pressing mechanism, a cutting mechanism, a driving mechanism, a control mechanism, a discharge mechanism, 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 rotary valve and a feeding hopper; the rotary valve is connected below the conical hopper, and the feeding hopper is connected below the rotary valve. The pressing mechanism is installed below the feeding hopper; the driving mechanism is connected behind the pressing mechanism, the cutting mechanism is connected in front of the pressing mechanism, and the discharge mechanism is located below it. The driving mechanism and the cutting mechanism are controlled by the control mechanism. All the aforementioned mechanisms are fixed to the support. This invention produces a low-humidity fly ash solidified body that enters the extrusion mechanism through a feeding mechanism and a transition mechanism to form a long strip of material, and then passes through a cutting mechanism to form cylindrical particles, significantly reducing the volume of the fly ash solidified body. It also features uniform forming, resistance to clogging, and adjustable discharge speed for low-humidity fly ash solidified bodies.

[0029] Other beneficial effects of the embodiments of this utility model will be further described below. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of a compression granulation device for treating low-humidity fly ash solidified body according to an embodiment of the present invention;

[0031] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the cutting mechanism of the device shown;

[0032] Figure 3 for Figure 1 The diagram illustrates the process flow of the device shown.

[0033] Reference numerals: 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; 400, Extrusion mechanism; 410, Outer cylinder; 420, Screw; 500, Drive mechanism; 510, Screw motor; 520, Coupling; 530, Bearing; 540, Bearing housing; 600, Cutting mechanism; 610, Perforated disc; 611, Cutter; 620, Perforated disc support; 630, Cutting motor; 700, Control mechanism; 710, Screw motor control panel; 720, Cutting motor control panel; 800, Discharge mechanism; 900, Support. Detailed Implementation

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] See Figure 1This utility model provides a compression granulation device for treating low-humidity fly ash solidified matter, comprising a feeding mechanism 100, a transition mechanism 200, a discharge mechanism 300, an extrusion mechanism 400, a cutting mechanism 600, a driving mechanism 500, a control mechanism 700, a discharge mechanism 800, and a support 900 connected in sequence. The feeding mechanism 100 connects to the outlet of a ton bag and adjusts the material feeding rate; the transition mechanism 200 is located below and communicates with the feeding mechanism 100, and is used to temporarily store materials and prevent material caking; the discharge mechanism 300 is connected below the transition mechanism 200, and is used to quantitatively convey materials and prevent dust generation; the extrusion mechanism 400 is connected below the discharge mechanism 300, and is used to extrude the material into a long strip shape; the cutting mechanism 600 is connected in front of the extrusion mechanism 400, and is used to cut the long strip material into granules; The drive mechanism 500 is connected to the rear of the extrusion mechanism 400 and is used to drive the extrusion mechanism 400 to work; the control mechanism 700 is used to control the operating status of the drive mechanism 500 and the cutting mechanism 600; the discharge mechanism 800 is located below the cutting mechanism 600 and is used to collect and discharge particles; the bracket 900 fixes and supports the feeding mechanism 100, the transition mechanism 200, the unloading mechanism 300, the extrusion mechanism 400, the cutting mechanism 600, the drive mechanism 500, the control mechanism 700, and the discharge mechanism 800.

[0039] The present invention uses a compression granulation device to process low-humidity fly ash solidified material. The low-humidity fly ash solidified material enters the extrusion mechanism through the feeding mechanism and the transition mechanism to form long strips of material, and then passes through the cutting mechanism to form cylindrical particles, which greatly reduces the volume of fly ash solidified material. It has the advantages of ensuring uniform molding, not being easy to clog, and having an adjustable discharge speed for low-humidity fly ash solidified material.

[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. The opening size adjustment range of the aperture valve 130 can be 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 900, 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 900.

[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 hopper 210, and the feed hopper 320 is connected below the rotary valve 310. Preferably, the rotary valve 310 has an adjustable rotational speed.

[0044] In some embodiments, the extrusion mechanism 400 includes an outer cylinder 410 and a screw 420, the outer cylinder 410 being connected below the feed hopper 320 and the screw 420 being located inside the outer cylinder 410.

[0045] In some embodiments, the drive mechanism 500 includes a screw motor 510, a coupling 520, a bearing 530, and a bearing housing 540. The bearing 530 is disposed within the bearing housing 540, and the screw motor 510 drives the screw 420 to rotate via the coupling 520 and the bearing 530. The drive mechanism 500 may be fitted with a stainless steel housing for dust protection.

[0046] like Figure 2 As shown, in some embodiments, the cutting mechanism 600 includes a circular perforated plate 610, a cutter 611, a perforated plate support 620, and a cutting motor 630; the circular perforated plate 610 is fixed between the outer cylinder 410 and the perforated plate support 620, the cutter 611 is fixed to the cutting motor 630, and the perforated plate support 620 is fixed to the cutting motor 630; the cutting motor 630 drives the cutter 611 to rotate and cut the elongated material passing through the circular perforated plate 610.

[0047] In some embodiments, the control mechanism 700 includes a screw motor control panel 710 and a cutting motor control panel 720. The screw motor control panel 710 is used to control the start, stop and speed of the screw motor 510, and the cutting motor control panel 720 is used to control the start, stop and speed of the cutting motor 630.

[0048] In some embodiments, the discharge mechanism 800 is inverted conical in shape, located directly below the perforated plate bracket 620, and embedded in the bracket 900.

[0049] The following further describes specific embodiments of this utility model.

[0050] Reference Figure 1This invention illustrates a compression granulation device for treating low-humidity fly ash solidified body. In this embodiment, it is composed of a feeding mechanism 100, a transition mechanism 200, a discharge mechanism 300, an extrusion mechanism 400, a driving mechanism 500, a cutting mechanism 600, a control mechanism 700, a discharge mechanism 800, and a support 900 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 a rupture roller 220, located below the ton bag outlet sleeve 120 and communicating with it. 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 extrusion mechanism 400 is installed below the feed hopper 320. The extrusion mechanism 400 is connected to a drive mechanism 500 at the rear, a cutting mechanism 600 at the front, and an outlet mechanism 800 at the bottom. The drive mechanism 500 and the cutting mechanism 600 are controlled by a control mechanism 700. All the mechanisms mentioned above are fixed to a bracket 900. The low-humidity fly ash solidified body of this utility model enters the extrusion mechanism 400 through the feeding mechanism 100 and the transition mechanism 200 to form a long strip material, and then passes through the cutting mechanism 600 to form cylindrical particles, which greatly reduces the volume of fly ash solidified body. It can ensure uniform molding, is not easy to clog, and has an adjustable discharge speed for low-humidity fly ash solidified body.

[0051] The compression granulation apparatus for treating low-humidity fly ash solidified body in this exemplary embodiment will now be further described.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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 300 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 300, ensuring smooth flow of the solidified fly ash between the upstream star-shaped unloader 300 and the downstream extrusion mechanism 400, and preventing dust.

[0057] In this embodiment of the utility model, the extrusion mechanism 400 includes an outer cylinder 410 and a screw 420. The extrusion mechanism 400 is located below the feed hopper 320, and the screw 420 rotates inside the outer cylinder 410. Under the combined action of the screw 420 and the outer cylinder 410, the fly ash solidified body is extruded, and the air in the gaps of the fly ash is discharged, so that it forms a long strip of material.

[0058] In this embodiment of the utility model, the drive mechanism 500 of the drive screw 420, in coordination with the target discharge rate, quantitatively conveys the fly ash solidified body accumulated in the outer cylinder 410. In a specific embodiment, the screw motor 510 rotates, driving the screw 420 to rotate through the linkage of the coupling 520 and the bearing 530. The fly ash solidified body is squeezed inside the outer cylinder 410, expelling the air in the material gaps. It passes through the circular disc 610 to form a long strip of material, and then is processed by the cutting mechanism 600 to form cylindrical particles before being discharged.

[0059] The working principle of this invention is as follows: Low-humidity fly ash solidified material enters the transition mechanism through the feeding mechanism, where the feeding rate is adjusted by an aperture valve; the low-humidity fly ash solidified material then enters the extrusion mechanism through the discharge structure; the low-humidity fly ash solidified material is extruded into elongated strips within the extrusion mechanism; after being processed by the cutting mechanism, the elongated material is formed into cylindrical particles and then discharged. This invention significantly reduces the volume of fly ash solidified material, and for low-humidity fly ash solidified material, it ensures uniform forming, is less prone to clogging, and has an adjustable discharge speed.

[0060] 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 low-humidity fly ash solidified body, characterized in that, It includes a feeding mechanism, a transition mechanism, a discharge mechanism, a pressing mechanism, a cutting mechanism, a driving mechanism, a control mechanism, a discharge mechanism, 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 a long strip shape; The cutting mechanism is connected in front of the extrusion mechanism and is used to cut long strips of material into granules; The drive mechanism is connected to the rear of the extrusion mechanism and is used to drive the extrusion mechanism to work. The control mechanism is used to control the operating status of the drive mechanism and the cutting mechanism; The discharge mechanism is located below the cutting mechanism and is used to collect and discharge particles; The bracket provides fixed support for the feeding mechanism, transition mechanism, unloading mechanism, extrusion mechanism, cutting mechanism, drive mechanism, control mechanism, and discharge mechanism.

2. The compression granulation apparatus according to claim 1, characterized in that, 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 granulation apparatus according to claim 2, characterized in that, 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 granulation apparatus according to claim 3, characterized in that, 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 granulation apparatus according to claim 3, characterized in that, The unloading mechanism includes a star-shaped unloader and a feed hopper. The star-shaped unloader is connected below the conical hopper, and the feed hopper is connected below the star-shaped unloader.

6. The compression granulation apparatus according to claim 5, characterized in that, The extrusion mechanism includes an outer cylinder and a screw. The outer cylinder is connected below the feed hopper, and the screw is located inside the outer cylinder.

7. The compression granulation apparatus according to claim 1, characterized in that, The drive mechanism includes a screw motor, a coupling, a bearing, and a bearing housing. The bearing is disposed in the bearing housing, and the screw motor drives the screw to rotate through the coupling and the bearing.

8. The compression granulation apparatus according to claim 6, characterized in that, The cutting mechanism includes a circular hole disc, a cutter, a disc support, and a cutting motor; the circular hole disc is fixed between the outer cylinder and the disc support, the cutter is fixed to the cutting motor, and the disc support is fixed to the cutting motor; the cutting motor drives the cutter to rotate and cut the elongated material passing through the circular hole disc.

9. The compression granulation apparatus according to claim 1, characterized in that, The control mechanism includes a screw motor control panel and a cutting motor control panel. The screw motor control panel is used to control the start, stop and speed of the screw motor, and the cutting motor control panel is used to control the start, stop and speed of the cutting motor.

10. The compression granulation apparatus according to claim 8, characterized in that, The discharge mechanism is inverted conical in shape, located directly below the perforated plate bracket, and embedded within the bracket.

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