Plateau garbage fly ash treatment device and method

Abstract

The application relates to the technical field of highland garbage incineration treatment devices, in particular to a highland garbage fly ash treatment device and method, in which the fly ash is pretreated, the fly ash is wetted in advance, the flying dust generated when the fly ash is put into a stirring barrel is eliminated, and the workers are protected; the fly ash is wetted in advance, the subsequent stirring time is effectively shortened, the mixing degree of the fly ash, water and medicaments in the subsequent stirring operation is improved, and the stirring efficiency is accelerated.

Description

Technical Field

[0001] This invention relates to the technical field of incineration treatment devices for high-altitude waste, and in particular to a treatment device for fly ash from high-altitude waste. Background Technology

[0002] In the incineration of waste, a large amount of fly ash is generated. For example, Chinese patent CN216079810U provides a fly ash solidification and recycling device for waste incineration in high-altitude areas. The device includes a main body, a fixed partition plate and a fly ash baffle plate, which are fixedly connected inside the main body. The main body also includes a first filter plate, a second filter plate and an activated carbon adsorption plate, which are fixedly connected inside the main body. The activated carbon adsorption plate is inserted into the main body. An ash collection box is slidably connected inside the main body. During the combustion process in the incinerator, soot and fly ash are generated and enter the main body of the device through the flue gas inlet. The soot and fly ash are blocked by the soot baffle, and a large amount of fly ash is blocked and falls into the ash collection box below under the action of gravity along the smooth inclined plate. A small amount of soot and fly ash is not blocked and continues to flow. When it passes through the first filter plate and the second filter plate, it will undergo secondary filtration, so that the fly ash that was not blocked is filtered and falls into the ash collection box.

[0003] However, the above-mentioned technical solution only collects the fly ash produced by burning garbage in the plateau; the fly ash contains a large amount of organic pollutants such as benzene series compounds and dioxins, as well as heavy metals such as Pb and Cr, and needs to be treated with chemicals.

[0004] In existing technologies, water, chemicals, and fly ash are usually directly added to a mixing tank and mixed by stirring to wash the fly ash. However, mixing the three materials by stirring requires a long time to ensure thorough mixing, which reduces the efficiency of fly ash treatment. Furthermore, the particle size of fly ash is generally between 1 and 100 μm. Directly adding fly ash into the mixing tank will cause fly ash dust, which will affect the health of workers. Summary of the Invention

[0005] In view of the above-mentioned problems in the prior art, the present invention provides a treatment device for fly ash from high-altitude landfills, the purpose of which is to improve the mixing degree of fly ash and reagents and reduce fly ash dust.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows:

[0007] A device for treating fly ash from high-altitude landfills is provided, comprising: a carrying component and a conveying assembly, the conveying assembly driving the carrying component to move along a fixed path; on the moving path of the carrying component, sequentially arranged are: a first feeding assembly, located above the carrying component, having a movable first feeding port for laying fly ash onto the carrying component along the first path; a second feeding assembly, located above the carrying component, having a movable second feeding port for laying a reagent onto the carrying component along a second path; the first path and the second path are distributed adjacent to each other; a settling zone for allowing fly ash and reagent to settle for a fixed time, so that the reagent wets the fly ash; and a discharging assembly for unloading and transferring the mixture of fly ash and reagent from the carrying component.

[0008] Furthermore, the first feeding assembly includes: a storage component for storing fly ash; a connecting component mounted on the storage component and capable of rotating around a first central axis; a feeding component mounted on the connecting component and capable of rotating around a second central axis; wherein the first central axis is perpendicular to the second central axis; a receiving trough opened on the feeding component and located below the outlet of the storage component for receiving fly ash; and an adjusting mechanism capable of driving the feeding component to rotate around the first and second central axes in coordination, changing the position of the receiving trough's port, thereby guiding the fly ash in the receiving trough to roll down along a first path.

[0009] Furthermore, the adjustment mechanism includes: a guide groove, inclined at a fixed angle to the second central axis, and formed on the feeding component; a sliding component, slidably mounted in the guide groove; a lead screw, arranged parallel to the second central axis; a transmission component, one end of which is hinged to the sliding component, and the other end of which is drivenly connected to the lead screw; a hemispherical protrusion, disposed on the lead screw; a clamping component, used to clamp and install the lead screw, having an annular groove in the clamping component, the hemispherical protrusion being slidably mounted in the annular groove; a driven gear, disposed on the lead screw; a first turntable and a rack, the rack being disposed on the first turntable, and the rack and the driven gear being meshed together; a first drive motor, used to drive the first turntable to rotate, which not only drives the lead screw to rotate around the first central axis, thereby driving the feeding component to rotate around the first central axis; but also drives the lead screw to rotate around its own central axis, driving the transmission component to move linearly along the axial direction of the lead screw, and pushing the sliding component to slide linearly along the guide groove, thereby driving the feeding component to rotate around the second central axis.

[0010] Furthermore, the device also includes a lifting mechanism for driving the load component closer to / away from the feeding component. The lifting mechanism includes: a mounting base disposed on the conveying assembly; a sliding sleeve disposed within the mounting base; a guide rod slidably mounted within the sliding sleeve, with one end of the guide rod connected to the load component; a channel opened on the mounting base; and a first telescopic component disposed on the side of the mounting base away from the load component. The piston rod of the first telescopic component can pass through the channel and contact the load component, and the piston rod of the first telescopic component can perform telescopic movement to drive the load component closer to / away from the feeding component.

[0011] Furthermore, the conveying assembly includes: a mounting shaft and a second turntable, the second turntable being rotatably mounted on the mounting shaft; a plurality of carrying components, which are mounted in a circumferential array on the second turntable; and a second drive motor for driving the second turntable to rotate, thereby driving the plurality of carrying components to alternately pass through the first feeding assembly, the second feeding assembly, the resting area, and the unloading assembly.

[0012] Furthermore, the feeding assembly includes: a second telescopic component and a conveyor belt, respectively disposed on both sides of the carrying component; a U-shaped pusher plate, mounted on the piston rod of the second telescopic component; the piston rod of the second telescopic component extends, which can drive the U-shaped pusher plate closer to the conveyor belt, thereby pushing the mixture on the carrying component onto the conveyor belt.

[0013] Furthermore, the first and second paths are distributed along a spiral path.

[0014] A method for treating fly ash from high-altitude waste includes the following steps: S1. Laying fly ash along a first path; S2. Laying reagent along a second path, with the first and second paths being adjacent to each other; S3. Allowing the fly ash and reagent to stand until the reagent wets the fly ash, resulting in a moist mixture; S4. Adding the mixture to a mixing tank, adding water and stirring to wash the fly ash.

[0015] The beneficial effects of this invention are as follows: In this invention, the fly ash is pretreated, which can moisten the fly ash in advance, eliminate the dust generated when the fly ash is put into the mixing tank, and protect the workers; moistening the fly ash in advance can also effectively shorten the subsequent mixing time, improve the mixing degree of fly ash, water and reagents in the subsequent mixing operation, and speed up the mixing efficiency. Attached Figure Description

[0016] Figure 1 A top view of the device provided in Embodiment 1;

[0017] Figure 2 The installation front view of the first feeding assembly provided in Embodiment 1;

[0018] Figure 3 Provided for Example 1 Figure 2 Enlarged view of point A;

[0019] Figure 4 This is a side view of the installation of the feeding component provided in Embodiment 1;

[0020] Figure 5 A schematic diagram showing the distribution of the first and second paths provided in Example 1;

[0021] The components include: 1. Loading component; 21. Mounting shaft; 22. Second turntable; 3. First feeding assembly; 31. Storage component; 32. Connecting component; 33. Feeding component; 34. Receiving trough; 35. Guide groove; 36. Sliding component; 37. Lead screw; 38. Transmission component; 39. Hemispherical protrusion; 311. Clamping block; 312. Driven gear; 313. First turntable; 314. Rack; 315. First drive motor; 4. Second feeding assembly; 5. Static area; 61. Second telescopic component; 62. U-shaped push plate; 63. Conveyor belt; 71. Mounting base; 72. Sliding sleeve; 73. Guide rod; 74. Channel; 75. First telescopic component; 81. First path; 82. Second path; 9. Cover; 91. Scraper. Detailed Implementation

[0022] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0023] Example 1

[0024] Reference Figure 1 As shown, this embodiment provides a treatment device for fly ash from high-altitude waste, including: a carrying component 1 and a conveying component, the conveying component being used to drive the carrying component 1 to move along a fixed path; on the moving path of the carrying component 1, there are sequentially arranged: a first feeding component 3, located above the carrying component 1, with a movable first feeding port, for laying fly ash along the first path 81 onto the carrying component 1; a second feeding component 4, located above the carrying component 1, with a movable second feeding port, for laying reagents along the second path 82 onto the carrying component 1; the first path 81 and the second path 82 are distributed adjacent to each other; a settling area 5, for settling fly ash and reagents for a fixed time, so that the reagents wet the fly ash; and a discharging component, for unloading and transferring the mixture of fly ash and reagents from the carrying component 1.

[0025] In this invention, the first feeding component 3 and the second feeding component 4 can respectively lay fly ash and reagent on the carrier component 1 along the first path 81 and the second path 82, and the fly ash and reagent are laid adjacent to each other. After a sufficient period of standing, the reagent can wet the fly ash.

[0026] Compared to traditional techniques that directly add solid fly ash and liquid agents into a mixing tank for stirring, this method offers a more efficient alternative.

[0027] By using this invention, the fly ash is pretreated before being added to the mixing tank, which can pre-wet the fly ash, eliminate the dust generated when the fly ash is added to the mixing tank, and protect the workers. Pre-wetting the fly ash can also effectively shorten the subsequent mixing time, improve the mixing degree of fly ash, water and reagents in the subsequent mixing operation, and speed up the mixing efficiency.

[0028] It is worth mentioning that directly mixing fly ash with water and chemicals can easily form bubbles in the mixing tank, resulting in air bubbles enveloping the fly ash. This prevents the fly ash and chemicals from making sufficient contact, reducing the treatment efficiency of the fly ash. In this invention, the fly ash is moistened in advance. Even if air bubbles envelop the fly ash during mixing, the fly ash inside the bubbles is already moist. Under the centrifugal force of the mixing tank, the moist fly ash can pass through the liquid film of the bubbles and re-contact and mix with the chemicals, effectively ensuring the treatment efficiency of the fly ash.

[0029] In this invention, the first path 81 and the second path 82 are laid adjacent to each other, and the fly ash is wetted by capillary action, which avoids the direct introduction of the agent into the fly ash and also eliminates the generation of bubbles.

[0030] Reference Figure 5 As shown, the first path 81 and the second path 82 are distributed along a spiral path. By designing the first path 81 and the second path 82 as spiral paths, the effective area on the carrying component 1 can be fully utilized, the load capacity of a carrying component 1 on fly ash can be increased, and the pretreatment efficiency of fly ash can be improved. Furthermore, the alternating laying of fly ash and reagents can effectively increase the wetting efficiency of the reagents on the fly ash.

[0031] Reference Figure 2 , 3 As shown in Figure 4, the first feeding assembly 3 includes: a storage component 31 for storing fly ash; a connecting component 32 installed on the storage component 31 and capable of rotating around a first central axis; a feeding component 33 installed on the connecting component 32 and capable of rotating around a second central axis; wherein the first central axis is perpendicular to the second central axis; a receiving trough 34 opened on the feeding component 33 and located below the discharge port of the storage component 31 for receiving fly ash; and an adjusting mechanism capable of driving the feeding component 33 to rotate around the first and second central axes in coordination, changing the position of the port of the receiving trough 34, thereby guiding the fly ash in the receiving trough 34 to roll down along the first path 81.

[0032] The adjusting mechanism includes: a guide groove 35, inclined at a fixed angle to the second central axis, and formed on the feeding component 33; a sliding component 36, slidably mounted in the guide groove 35; a lead screw 37, arranged parallel to the second central axis; a transmission component 38, one end of which is hinged to the sliding component 36, and the other end is connected to the lead screw 37 for transmission; a hemispherical protrusion 39, disposed on the lead screw 37; a clamping member for clamping and mounting the lead screw, having an annular groove in the clamping member, and the hemispherical protrusion 39 slidably mounted in the annular groove; a driven gear 312, disposed on the lead screw; a first turntable 313; and a rack. 314, rack 314 is mounted on the first turntable 313, and rack 314 and driven gear 312 are meshed together; first drive motor 315 is used to drive the first turntable 313 to rotate, which can not only drive the lead screw to rotate around the first central axis, thereby driving the feeding component 33 to rotate around the first central axis; it can also drive the lead screw 37 to rotate around its own central axis, drive the transmission component 38 to move linearly along the axial direction of the lead screw, and push the sliding component 36 to move linearly along the guide groove 35, thereby driving the feeding component 33 to rotate around the second central axis.

[0033] At least two sliding parts 36 are symmetrically installed on both sides of the feeding part 33 to improve motion stability; and the feeding part 33 is installed inside the cover 9.

[0034] It is understandable that the second feeding component 4 adopts the same structure as the first feeding component 3.

[0035] Of course, a valve is installed at the discharge port of the material component. By controlling the opening and closing of the valve, the discharge of fly ash and reagents can be controlled.

[0036] By designing the first path 81 and the second path 82 as spiral paths, the discharge port can remain open throughout the laying process, ensuring smooth laying.

[0037] The device also includes a lifting mechanism for driving the load component 1 closer to / away from the feeding component 33. The lifting mechanism includes: a mounting base 71 disposed on the conveying assembly; a sliding sleeve 72 disposed within the mounting base 71; a guide rod 73 slidably mounted within the sliding sleeve 72, with one end of the guide rod 73 connected to the load component 1; a channel 74 opened on the mounting base 71; and a first telescopic component 75 disposed on the side of the mounting base 71 away from the load component 1. The piston rod of the first telescopic component 75 can pass through the channel 74 and contact the load component 1. The piston rod of the first telescopic component 75 can perform telescopic movement to drive the load component 1 closer to / away from the feeding component 33.

[0038] It is understandable that when the feeding component 33 rotates around the second central axis, one end of the feeding component 33 will move closer to / away from the carrying component 1. By controlling the extension and retraction of the piston rod of the first telescopic component 75, the carrying component 1 can be moved closer to / away from the feeding component 33 to receive fly ash and chemicals, preventing fly ash and chemicals from falling too high, which would cause fly ash and chemicals to splash, resulting in fly ash dust and chemicals loss.

[0039] Specifically, the conveying assembly includes: a mounting shaft 21 and a second turntable 22, the second turntable 22 being rotatably mounted on the mounting shaft 21 via a turntable bearing; a plurality of carrying components 1, which are mounted in a circumferential array on the second turntable 22; and a second drive motor (not shown in the figure) for driving the second turntable 22 to rotate, thereby driving the plurality of carrying components 1 to alternately pass through the first feeding assembly 3, the second feeding assembly 4, the stationary area 5, and the unloading assembly.

[0040] Specifically, a scraper 91 is also fixedly installed in the static area 5, which is set on the mounting shaft 21. The scraper 91 is installed at a fixed distance from the load component 1 and is used to scrape the top of the fly ash that is piled up in a "mountain" shape, scrape off the top fly ash, and ensure the wetting efficiency of the fly ash.

[0041] It is easy to understand that for those skilled in the art, driving the second turntable 22 to rotate via the second motor is common knowledge in the field, and will not be elaborated here.

[0042] The unloading assembly includes: a second telescopic component 61 and a conveyor belt 63, respectively disposed on both sides of the carrying component 1; a U-shaped pusher plate 62, mounted on the piston rod of the second telescopic component 61; the piston rod of the second telescopic component 61 extends, which can drive the U-shaped pusher plate 62 to approach the conveyor belt 63, thereby pushing the mixture on the carrying component 1 onto the conveyor belt 63; thus realizing automatic loading and unloading on the carrying component 1 and reducing manual labor.

[0043] It is worth mentioning that both the first telescopic component 75 and the second telescopic component 61 can be hydraulic cylinders.

[0044] It is worth mentioning that the agent used in this embodiment is a waste incineration fly ash chelating agent, which mainly contains the following components: calcium nitrate, citric acid, and calcium sulfate. Of course, other substances need to be added to the agent depending on the actual fly ash treatment situation.

[0045] Example 2

[0046] A method for treating fly ash from high-altitude waste includes the following steps: S1. Laying fly ash along a first path 81; S2. Laying a reagent along a second path 82, with the first path 81 and the second path 82 being adjacent to each other; S3. Allowing the fly ash and reagent to stand until the reagent wets the fly ash, resulting in a moist mixture; S4. Adding the mixture to a mixing tank, adding water and stirring to wash the fly ash.

[0047] Those skilled in the art will understand that although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention. Clearly, those skilled in the art can make various alterations and modifications to the invention without departing from its spirit and scope. Thus, if these modifications and modifications of the invention fall within the scope of the machine equivalents of the claims, the invention also intends to include these modifications and modifications.

Claims

1. A device for treating fly ash from high-altitude landfills, characterized in that, include: The carrying component (1) and the conveying assembly, the conveying assembly being used to drive the carrying component (1) to move along a fixed path; Along the movement path of the carrying component (1), the following are arranged in sequence: The first feeding component (3) is located above the carrying component (1) and is provided with a movable first feeding port for laying fly ash on the carrying component (1) along the first path (81). The second feeding component (4) is located above the carrying component (1) and is provided with a movable second feeding port for laying the medicine along the second path (82) on the carrying component (1); The first path (81) and the second path (82) are distributed adjacently; The settling area (5) is used to allow fly ash and reagents to stand for a fixed time so that the reagents can wet the fly ash. The unloading assembly is used to unload and transfer the mixture of fly ash and reagents from the carrying component (1).

2. The treatment device for high-altitude waste fly ash according to claim 1, characterized in that, The first feeding component (3) includes: Storage component (31) for storing fly ash; The connecting component (32) is installed on the storage component (31) and is capable of rotating around the first central axis; The feeding component (33) is mounted on the connecting component (32) and is capable of rotating around the second central axis; Furthermore, the first central axis is perpendicular to the second central axis; The receiving trough (34) is provided on the feeding component (33) and located below the discharge port of the storage component (31) for receiving fly ash; The adjustment mechanism can drive the feeding component (33) to rotate around the first central axis and the second central axis in coordination, change the position of the port of the receiving trough (34), and thus guide the fly ash in the receiving trough (34) to roll down along the first path (81).

3. The treatment device for high-altitude waste fly ash according to claim 2, characterized in that, The regulating mechanism includes: The guide groove (35) is inclined at a fixed angle to the second central axis and is opened on the feeding component (33); The sliding component (36) is slidably mounted in the guide groove (35); The lead screw (37) is set parallel to the second central axis; The transmission component (38) is hinged to the sliding component (36) at one end and connected to the lead screw (37) at the other end. A hemispherical protrusion (39) is provided on the lead screw (37); A clamping component is used to clamp and install a lead screw. An annular groove is provided in the clamping component, and a hemispherical protrusion (39) is slidably installed in the annular groove. Driven gear (312) is mounted on the lead screw; The first turntable (313) and the rack (314) are mounted on the first turntable (313) and the rack (314) is meshed with the driven gear (312). The first drive motor (315) is used to drive the first turntable (313) to rotate. It can not only drive the lead screw to rotate around the first central axis, thereby driving the feeding component (33) to rotate around the first central axis; it can also drive the lead screw (37) to rotate around its own central axis, drive the transmission component (38) to move linearly along the axial direction of the lead screw, and push the sliding component (36) to move linearly along the guide groove (35), thereby driving the feeding component (33) to rotate around the second central axis.

4. The treatment device for high-altitude waste fly ash according to claim 2, characterized in that, It also includes a lifting mechanism for driving the load component (1) closer to / away from the feeding component (33), The lifting mechanism includes: Mounting base (71) is provided on the conveying assembly; A sliding sleeve (72) is disposed within the mounting base (71); The guide rod (73) is slidably installed in the sliding sleeve (72), and one end of the guide rod (73) is connected to the load component (1); Channel (74) is provided on mounting base (71); The first telescopic component (75) is disposed on the side of the mounting base (71) away from the load-bearing component (1); The piston rod of the first telescopic component (75) can pass through the channel (74) and contact the loading component (1). The piston rod of the first telescopic component (75) can perform telescopic movement to drive the loading component (1) to move closer to / away from the feeding component (33).

5. The treatment device for high-altitude waste fly ash according to claim 1, characterized in that, The conveying components include: Mounting shaft (21) and second turntable (22), the second turntable (22) being rotatably mounted on mounting shaft (21); a plurality of load-bearing components (1) are mounted on the second turntable (22) in a circumferential array along the second turntable (22); The second drive motor is used to drive the second turntable (22) to rotate, thereby driving several load components (1) to alternately pass through the first loading assembly (3), the second loading assembly (4), the resting area (5) and the unloading assembly.

6. The treatment device for high-altitude waste fly ash according to claim 1, characterized in that, The feeding components include: The second telescopic component (61) and the conveyor belt (63) are respectively disposed on both sides of the carrying component (1); The U-shaped push plate (62) is installed on the piston rod of the second telescopic component (61); The piston rod of the second telescopic component (61) extends, which can drive the U-shaped push plate (62) to approach the conveyor belt (63) to push the mixture on the load component (1) onto the conveyor belt (63).

7. The treatment device for high-altitude waste fly ash according to claim 1, characterized in that, The first path (81) and the second path (82) are distributed along the spiral path.

8. A treatment method for high-altitude waste fly ash based on the treatment device according to any one of claims 1-7, characterized in that, Includes the following steps: S1. Lay the fly ash along the first path (81); S2. The agent is laid along the second path (82), and the first path (81) and the second path (82) are distributed adjacent to each other; S3. Let the fly ash and reagent stand until the reagent wets the fly ash to obtain a moist mixture; S4. Add the mixture to the mixing tank, add water and stir to complete the water washing of fly ash.

Images