Recycling pretreatment device and method for waste furniture
By employing a two-stage screening process in the waste furniture recycling device, the problem of incomplete separation of fine slag from coarse slag was solved, achieving efficient separation and classified recycling of coarse and fine slag.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-16
- Publication Date
- 2026-04-03
AI Technical Summary
Existing recycling equipment has problems with incomplete separation of coarse and fine residues from waste furniture. In particular, the coarse residues often contain a large amount of fine residues, which affects subsequent recycling.
A pre-processing device for recycling waste furniture is employed, comprising a crushing component, a first screening component, and a second screening component, which separates the slag through two screening processes. First, the first screening component performs preliminary separation of coarse and fine slag, and then the second screening component further separates the fine slag remaining in the coarse slag.
This achieves a more thorough separation of coarse and fine slag, enabling the recycling pretreatment device to effectively separate slag of different particle sizes and weights, thereby improving the efficiency of subsequent recycling.
Smart Images
Figure CN121775952A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of waste furniture recycling technology, and more specifically, to a waste furniture recycling pretreatment device and method. Background Technology
[0002] Currently, some furniture is made of wood. Therefore, when recycling this type of waste furniture, hammer crushers are generally used to crush and pulverize the wood, and the crushed residue is recycled for reuse.
[0003] However, in actual use, due to the different types of wood in waste furniture, such as solid wood whose core component is natural wood fiber, the proportion of coarse residue (larger particle size) in the crushed residue is high, while medium density fiberboard whose core component is wood fiber + adhesive, the proportion of fine residue (smaller particle size) in the crushed residue is high.
[0004] Therefore, when wood from waste furniture is crushed, it usually produces both coarse and fine slag. However, during the subsequent recycling of the slag, the coarse slag is often used to make biomass fuel, while the fine slag is used to make filler. The crushed slag needs to be separated and recycled. However, in the existing recycling devices, the simple use of wind power to separate coarse and fine slag with different densities can separate most of the coarse and fine slag, but it still leaves a lot of fine slag in the coarse slag, making the separation of coarse and fine slag incomplete. Therefore, it needs to be improved. Summary of the Invention
[0005] The purpose of this application is to provide a pre-processing device for recycling waste furniture to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this application provides the following technical solution: A pre-processing device for recycling waste furniture includes a housing. A first processing chamber and a second processing chamber are sequentially arranged in the housing along a first direction. The first processing chamber and the second processing chamber are in communication. A third processing chamber is also arranged in the housing. The third processing chamber is located on one side of the second processing chamber and is in communication with the second processing chamber. A pulverizing component is provided in the first processing chamber. The pulverizing component is used to pulverize wood and form shreds. The first screening component is located inside the second processing chamber. After the debris enters the second processing chamber from the first processing chamber, it undergoes a first screening process by the first screening component. The second screening component is located inside the third processing chamber. After the debris enters the third processing chamber from the second processing chamber, it undergoes a second screening process by the second screening component.
[0007] Further, the first screening component includes: A moving component is located at the bottom of the second processing chamber, where there is debris at the bottom. Under the movement of the moving component, the moving component interacts with the debris and transports the debris from the second processing chamber to the third processing chamber. A blowing component is located on one side of the moving component. The debris is transported by the first conveying component and enters the third processing chamber through the blowing component. The debris diffuses upward under the blowing of the blowing component to form a debris flow. The debris flow is further divided into a first debris and a second debris due to weight. A first gap is formed between the first debris and the blowing component, and a second gap is formed between the second debris and the blowing component. The second gap is greater than the first gap.
[0008] Furthermore, the second processing cavity is provided with a first opening, and the second processing cavity is connected to the third processing cavity through the first opening, and the blowing component is disposed at the first opening.
[0009] Furthermore, the first screening component also includes: A baffle is located above the blowing member along the first direction. The baffle is obliquely arranged and partially blocks the first opening. When the debris flows upward, it contacts the baffle to change the flow direction of the debris and move it away from the second processing chamber.
[0010] Furthermore, the third processing cavity is provided with a first storage space, a second storage space and a third storage space in sequence along the second direction. The second storage space is provided with a second opening and is connected to the first storage space through the second opening. The second screening component is disposed in the second storage space and contacts the first fragment flowing downward and screens the first fragment.
[0011] Further, the second screening component includes: The screening component and the first guide component are located above the screening component along the second direction. After the first fragments encounter the first guide component, they flow downwards. The screening component contacts the downward-flowing first fragments and screens them. Due to their volume, the first fragments are further divided into third fragments and fourth fragments. The volume of the third fragments is larger than that of the fourth fragments.
[0012] Furthermore, the second screening component also includes: The second guide is located at the bottom of the screening component along the first direction. The second guide is used to carry the fourth fragment after screening by the screening component and guide the fourth fragment to the first storage space.
[0013] Furthermore, the second screening component also includes: A striking component is disposed on one side of the screening component. Under the striking of the striking component, the screening component is vibrated to reduce the clogging of the screening component by the third and fourth debris.
[0014] Furthermore, the striking component includes: A striking rod is disposed on one side of the screening component. The striking rod is arranged along a first direction and is connected to a moving component to drive the striking rod to move along the first direction and form a striking action on the screening component.
[0015] This invention also provides a method for pre-processing waste furniture recycling, which uses the aforementioned waste furniture recycling pre-processing device, specifically including the following steps: S1. Perform the crushing process on the wood in the waste furniture; Wood from waste furniture is added to the first processing chamber, crushed using a crushing component, and the resulting mixture of crushed debris falls into the second processing chamber. S2. Perform the first separation process on the debris and dust from step S1; The first screening component transports the debris and dust in the second processing chamber to the top of the third processing chamber, and the blowing component performs air separation, so that the dust is discharged outside the shell, the second debris is collected into the third storage space, and the first debris enters the second storage space. S3. Perform a second separation process on the first fragment in the second storage space in step S2; The first fragment in the second storage space is further screened by the second screening component, so that the third fragment is left in the second storage space and the fourth fragment is introduced into the first storage space for collection.
[0016] Compared with the prior art, the beneficial effects of this application are: In this application, wood is crushed using a crushing component, coarse and fine residues are separated by a first screening component, and the remaining fine residues in the coarse residues are separated a second time by a second screening component. This makes the separation of coarse and fine residues more thorough, thus enabling the recycling pretreatment device to crush and separate wood for subsequent recycling of coarse and fine residues. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a pre-processing device for recycling waste furniture according to this application.
[0018] Figure 2 This is a cross-sectional schematic diagram of a pre-processing device for recycling waste furniture according to this application.
[0019] Figure 3 This is one of the partial structural schematic diagrams of the recycling pretreatment device in this application.
[0020] Figure 4 This is the second partial structural schematic diagram of the recycling pretreatment device in this application.
[0021] Figure 5 This is a structural schematic diagram of the striking component in this application.
[0022] Figure 6 This is a partial cross-sectional structural diagram of the striking component in this application.
[0023] The meanings of the labels in the diagram are as follows: 100. Shell; 101. Feed hopper; 102. Support leg; 103. Discharge hopper; 110. Outer cover; 111. Air duct; 120. First motor; 130. Second motor; 201. Crushing chamber; 202. Spraying chamber; 203. First chamber; 204. Second chamber; 205. Equipment chamber; 206. Third chamber; 210. Partition plate; 220. Inclined plate; 230. First rotating shaft; 231. Scraper; 240. Baffle plate; 250. Screen plate; 251. Second guide plate; 252. First guide plate; 260. Second rotating shaft; 26 1. Paddle plate; 270. Crushing shaft; 271. Cutter disc; 272. Hammer head; 310. Air inlet pipe; 410. First cam; 420. Fixing block; 421. Push rod; 422. First mounting rod; 430. First spring; 440. Lifting frame; 441. Second groove; 450. Fourth spring; 460. Second cam; 510. Striking block; 511. Striking cavity; 610. Striking rod; 611. Pressure plate; 620. Second spring; 630. Sliding block; 631. First groove; 632. Top rod; 640. Third spring. Detailed Implementation
[0024] To further understand the content of this application, a detailed description of this application will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative and not intended to limit the scope of this application.
[0025] The following is in conjunction with the appendix Figures 1-6 This embodiment will be described in further detail.
[0026] This embodiment provides a pre-processing device for recycling waste furniture, which is used to crush the wood panels in the waste furniture and to screen the dust and debris (including debris of different weights and different volumes; i.e., coarse and fine debris) generated by crushing, so that the debris of different weights and different volumes can be recycled and reused in the future.
[0027] The waste furniture recycling pretreatment device includes a housing 100, and inside the housing 100 along a first direction ( Figure 2 The Y-axis direction shown is... Figure 2 The first processing chamber and the second processing chamber are arranged sequentially in the vertical direction shown in the figure. The first processing chamber and the second processing chamber are connected. In this application, the first processing chamber is a crushing chamber 201 and the second processing chamber is a spraying chamber 202. Specifically, the housing 100 is provided with a crushing chamber 201 located at the top and a spraying chamber 202 located below it. The top of the housing 100 is provided with a feeding hopper 101 that communicates with the crushing chamber 201. The bottom of the crushing chamber 201 is provided with a slot that communicates with the spraying chamber 202. A first screen is embedded in the slot.
[0028] like Figure 1 and Figure 2 As shown, a third processing chamber is also provided inside the housing 100. The third processing chamber is located on one side of the second processing chamber and is connected to the second processing chamber. In this application, the third processing chamber is a drying chamber. Specifically, the housing 100 is also provided with a drying chamber that is connected to the spraying chamber 202. The drying chamber is provided with opposing partitions 210 at the bottom. The two partitions 210 are used to divide the bottom of the drying chamber into a first chamber 203 in the middle, a second chamber 204 on the right, and a third chamber 206 on the left.
[0029] The crushing component is provided in the first processing chamber (crushing chamber 201). The crushing component is used to crush waste furniture and form shreds. Specifically, the crushing chamber 201 is provided with a crushing component for crushing boards. Among them, combined Figure 3 As shown, the crushing assembly includes a rotatable crushing shaft 270, which is rotatably disposed within the crushing chamber 201. Cutter discs 271 are spaced apart on the crushing shaft 270, and multiple hammers 272 are mounted between the cutter discs 271 via mounting shafts. This allows the material to enter the crushing chamber 201 through the feeding hopper 101, causing the crushing shaft 270 to drive the cutter discs 271 and hammers 272 to crush the material. Specifically, to achieve the rotation of the crushing shaft 270, in this embodiment, a second motor 130 for driving the crushing shaft 270 to rotate is provided on the outer wall of the housing 100. The trough and the first screen allow the crushed residue to enter the throwing chamber 202. That is, the dust and residue generated during the crushing process enter the throwing chamber 202 below through the first screen.
[0030] The first screening component is located inside the second processing chamber (spraying chamber 202). Specifically, the spraying chamber 202 is equipped with a first screening component for screening the slag. After the slag enters the second processing chamber (spraying chamber 202) from the first processing chamber (crushing chamber 201), it undergoes a first screening process by the first screening component. In this embodiment, the first screening component enables it to screen the dust and slag of different weights in the slag.
[0031] The first screening component in this application includes a moving part located at the bottom of the second processing chamber. The bottom of the second processing chamber has debris, and under the movement of the moving part, the moving part interacts with the debris and transports the debris from the second processing chamber to the third processing chamber. The moving part includes a rotatable first rotating shaft 230, which is coaxially arranged with the arc-shaped part of the throwing chamber 202. The first rotating shaft 230 is provided with a scraper 231 for scraping the debris in the throwing chamber 202 into the position above the inclined plate 220. That is, the rotation of the first rotating shaft 230 drives the scraper 231 to move circumferentially along the side wall of the arc-shaped part of the throwing chamber 202, throwing the debris that falls to the bottom of the throwing chamber 202 toward the position above the inclined plate 220.
[0032] The first screening component in this application also includes a blowing component. The blowing component performs air separation and is located on one side of the moving component. The debris is transported by the first conveying component and enters the third processing chamber through the blowing component. The debris diffuses upward under the blowing of the blowing component to form a debris flow. The debris flow is further divided into a first debris (heavy debris) and a second debris (light debris) due to weight. A first gap is formed between the first debris (heavy debris) and the blowing component, and a second gap is formed between the second debris (light debris) and the blowing component. The second gap is greater than the first gap. Specifically, such as Figure 2 As shown, the maximum distance of the first spacing is the distance from the inclined plate 220 to the left side of the right partition 210; the minimum distance of the second spacing is the distance from the inclined plate 220 to the right side of the right partition 210.
[0033] In this embodiment, combined with Figure 2 As shown, the bottom of the spraying chamber 202 is arc-shaped, and the bottom of the spraying chamber 202 is connected to the corresponding partition 210 through an inclined plate 220; wherein, the bottom wall of the arc-shaped spraying chamber 202 is located below the groove opening, and the upper end of the drying chamber is connected to the spraying chamber 202 so that the debris in the spraying chamber 202 can enter the drying chamber through this connection. The blowing component is used to perform air separation on the debris above the inclined plate 220. Specifically, during the throwing process, dust and lighter debris flow with the airflow toward the upper part of the second chamber 204, which is away from the throwing chamber 202. Heavier debris is blown to the upper part of the first chamber 203 and falls into the first chamber 203 in the middle position due to gravity. The inclined plate 220 is equipped with a first filter screen, and the blowing component is located above the third chamber 206 and on the lower side of the inclined plate 220.
[0034] In this application, the blowing component includes an air inlet pipe 310, on which an air inlet is provided corresponding to the first filter screen. Specifically, one end of the air inlet pipe 310 is connected to a fan via a pipe, and the fan blows air into the air inlet pipe 310, thereby enabling the blowing component to form an airflow that blows upward toward the drying chamber for air separation. Figure 2 and Figure 3 As shown, the blowing component blows air upwards and to the right; the side wall of the housing 100 away from the spraying chamber 202 is provided with an air outlet that connects to the top of the drying chamber. This air outlet is used to discharge the airflow above the drying chamber out of the drying chamber. A second filter screen is provided at the air outlet. The second filter screen filters the debris in the airflow, so that the debris can be retained inside the second filter screen and fall into the second chamber 204 for collection due to gravity.
[0035] In order to treat the dust in the exhaust airflow, the air outlet is connected to a dust collection device (such as a bag filter) through a pipe so that the dust discharged by the device can be treated.
[0036] The second processing chamber has a first opening, which connects it to the third processing chamber. A blowing component is disposed at the first opening. (See reference...) Figure 2 As shown, the first screening component also includes a baffle 240, which is located above the blowing member along the first direction. The baffle 240 is obliquely arranged and partially blocks the first opening. When the debris flows upward, it contacts the baffle 240 to change the flow direction of the debris flow and move it away from the second processing chamber.
[0037] In this embodiment, to prevent the blowing component from blowing the debris scattered by the scraper 231 back into the spraying chamber 202, a baffle 240 is provided above the drying chamber, with one end extending into the spraying chamber 202. The lower end of the baffle 240 extends at an angle to the first rotating shaft 230. The baffle 240 is used to guide the debris scattered by the scraper 231. In actual use, to improve the effect of the baffle 240 in preventing debris from being thrown back into the spraying chamber 202, the lower end of the baffle 240 is closer to the first rotating shaft 230. To avoid interfering with the rotation of the scraper 231, the baffle 240 is movable to avoid the rotating scraper 231.
[0038] In this embodiment, in order to realize the rotation of the first rotating shaft 230, the front and rear sides of the housing 100 are provided with outer covers 110. The two ends of the first rotating shaft 230 extend through the housing 100 and into the corresponding outer covers 110. One of the two outer covers 110 is provided with a first motor 120 for driving the first rotating shaft 230 to rotate.
[0039] In this embodiment, the first rotating shaft 230 located inside the outer cover 110 has opposing first cams 410 at both ends. The front and rear side walls of the housing 100 have sliding grooves along the moving direction of the baffle 240. The side wall of the baffle 240 has a slider extending through the sliding groove. The extended end of the slider has a fixing block 420. The two ends of the fixing block 420 are provided with abutment rods 421 and a first mounting rod 422 along the moving direction of the baffle 240. The outer side wall of the housing 100 has a first mounting seat. The first mounting rod 422 passes through the first mounting seat. The through end of the first mounting rod 422 is threaded with a first nut. A first spring 430 is sleeved on the first mounting rod 422 to push the abutment rod 421 against the first cam 410.
[0040] In this embodiment, the sliding installation of the baffle 240 within the housing 100 is preferably achieved by setting the sliding groove and the slider; The first cam 410 is fixedly mounted on the first rotating shaft 230. The protrusion of the first cam 410 and the scraper 231 are at a certain angle. In actual use, the first rotating shaft 230 rotates to drive the first cam 410 to rotate. When the push rod 421 slides along the surface of the first cam 410 to the most protruding end of the protrusion, it pushes the fixing block 420 to slide along the slide groove, so that the baffle 240 moves away from the first rotating shaft 230 to avoid the rotation of the scraper 231. When the push rod 421 slides along the most protruding end of the protrusion of the first cam 410 to the surface of the first cam 410, the baffle 240 is reset under the action of the first spring 430 so that the baffle 240 can guide the debris thrown by the scraper 231 again.
[0041] The third processing chamber is along the second direction ( Figure 2 The X-axis direction shown is... Figure 2 The first storage space (third cavity 206), the second storage space (first cavity 203), and the third storage space (second cavity 204) are arranged sequentially in the horizontal direction. The second storage space is provided with a second opening and is connected to the first storage space through the second opening. The second screening component is arranged in the second storage space and contacts the first fragment flowing downward and screens the first fragment (heavy fragment).
[0042] In this application, the second screening component is located in the third processing chamber. After the debris enters the third processing chamber from the second processing chamber, it undergoes a second screening process by the second screening component.
[0043] The second screening assembly includes a screening component and a first guide component. The first guide component is a first guide plate 252, and the first guide component is located along the second direction of the screening component. Figure 2 The X-axis direction shown is... Figure 2 Above the horizontal direction in the middle, the first fragment (heavy fragment) flows downward after encountering the first guide (first guide plate 252). The screening component contacts the downward flowing first fragment (heavy fragment) and screens the first fragment (heavy fragment). Due to its volume, the first fragment (heavy fragment) is further divided into the third fragment (the larger fragment among the heavy fragment) and the fourth fragment (the smaller fragment among the heavy fragment). The volume of the third fragment is greater than that of the fourth fragment. The second screening component further performs volume screening on the heavy fragment.
[0044] The second screening component also includes a second guide member, which is a second guide plate 251. The second guide member is located at the bottom of the screening component along the first direction. The second guide member is used to carry the fourth fragments (smaller fragments among the heavy fragments) after screening by the screening component and guide the fourth fragments to the first storage space (third chamber 206). At the same time, the larger fragments among the heavy fragments flow downward into the first chamber 203.
[0045] It is worth noting that the first screening of the first and second fragments in this application is the first sorting of coarse and fine slag; then the first fragments after the first screening are screened again to form the third and fourth fragments, which is the second sorting of the coarse slag (with residual fine slag) after the first screening; thus, the coarse and fine slag can be separated more thoroughly.
[0046] In this application, the second screening component is disposed in the first cavity 203 for screening the first slag, and the drying cavity is provided with a drying component for drying the slag.
[0047] The second screening component enables it to screen the heavy fragments after the first screening again, so as to classify and recycle the large and small fragments. The drying component reduces the moisture content of the slag, facilitating its recycling. It is worth noting that the drying process in this application is merely preheating; after sorting, the slag will undergo further deep drying.
[0048] In this embodiment, the screening component includes a screen plate 250 inclinedly disposed within the first cavity 203. The upper end of the screen plate 250 is fixedly installed on the side wall of the left partition 210. Multiple screen plates 250 are arranged along the first direction; two are shown in this application. A second screen mesh is embedded in the screen plate 250 for filtering granular and flocculent debris. A second guide plate 251 is provided at the lower end of the screen plate 250. After the fourth debris is filtered through the screen plate 250, it is guided into the third cavity 206 through the second guide plate 251, thereby achieving a reduction in the volume of heavy debris. Larger fragments and smaller fragments among the heavier fragments are collected separately in the first chamber 203 and the third chamber 206. In this embodiment, striking components for striking are provided below the sieve plate 250 and below the first guide plate 252. The striking components strike the sieve plate 250 to make the sieve plate 250 vibrate, thereby causing the fragments sliding along the sieve plate 250 to vibrate, thus improving the sieving effect of the sieve plate 250 on the fragments. The striking components strike the first guide plate 252 to make the first guide plate 252 vibrate, which facilitates the guiding of the first fragments.
[0049] In practical use, to collect the debris in the first chamber 203, second chamber 204, and third chamber 206, discharge hoppers 103 are provided at the lower ends of the first chamber 203, second chamber 204, and third chamber 206 to facilitate the discharge of different types of debris. Lighter debris enters the second chamber 204 and is discharged from the discharge hopper 103 below. Heavier debris first enters the first chamber 203, and after being screened by the second screening component, smaller debris from the heavier debris enters the third chamber 206 and is discharged from the discharge hopper 103 below the third chamber 206. Larger debris from the heavier debris is discharged from the discharge hopper 103 below the first chamber 203. Support legs 102 are provided at the bottom of the shell 100 to suspend the discharge hopper 103 for debris discharge.
[0050] The second screening assembly also includes a striking component, which is disposed on one side of the screening member. Under the striking of the striking component, the screening member is vibrated to reduce the blockage of the screening member by the third and fourth debris. The striking component includes a striking rod 610, which is disposed on one side of the screening member. The striking rod 610 is arranged along a first direction and is connected to a moving component to drive the striking rod to move along the first direction and form a striking action on the screening member.
[0051] Specifically, in combination Figure 5 and Figure 6As shown, in this embodiment, the striking component includes a striking block 510, which is fixedly installed on the side wall of the partition 210. The striking block 510 has a striking cavity 511 inside. The front and rear side walls of the housing 100 are used to seal the two ends of the striking cavity 511. The striking cavity 511 has a lifting rod 610 that extends through the striking block 510 at its upper end. The striking cavity 511 also has a driving component, which is used to drive the striking rod 610 to rise and fall so as to strike the screen plate 250.
[0052] By driving the striking rod 610 to rise and fall within the striking cavity 511, it can strike the corresponding sieve plate 250, thereby causing it to vibrate and improving the filtration effect of the sieve plate 250.
[0053] In this embodiment, the driving component includes a sliding block 630 slidably disposed in the striking cavity 511 via a second spring 620. The sliding block 630 has a first groove 631 for the corresponding striking rod 610 to extend into. A first guide surface is provided on one side wall of the first groove 631. A pressure plate 611 is provided between the striking rods 610. A third spring 640 is sleeved on the striking rod 610 for pushing the striking rod 610 to retract. The sliding block 630 slides to make the striking rod 610 slide along the first guide surface to realize the extension and retraction of the striking rod 610.
[0054] With the above structure, in actual use, the third spring 640 can drive the pressure plate 611 to overlap the sliding block 630, so that the upper end of the striking rod 610 retracts and its lower end extends into the corresponding first groove 631. At this time, the third spring 640 is used to push the sliding block 630 to move so that it abuts against the front and rear side walls of the housing 100. At this time, the sliding block 630 moves toward the striking cavity 511, which can cause the first guide surface to squeeze the striking rod 610, causing it to move upward, thereby realizing that the upper end of the striking rod 610 hits the screen plate 250 to generate vibration.
[0055] In this embodiment, the sliding block 630 is provided with a push rod 632 that penetrates the housing 100 and extends into the corresponding outer cover 110. A lifting frame 440 is provided inside the outer cover 110. The lifting frame 440 is slidably fitted against the front and rear side walls of the housing 100. A second groove 441 is provided on the lifting frame 440 for the push rod 632 to extend into. A second guide surface is provided on one side wall of the second groove 441. A second mounting seat is provided on the side wall of the housing 100 above the lifting frame 440. A second mounting rod is provided on the lifting frame 440 that penetrates the second mounting seat. A fourth spring 450 for pushing the lifting frame 440 upward is sleeved on the second mounting rod. A second nut is threaded onto the second mounting rod, causing the upper end of the fourth spring 450 to... The second nut is attached to the second mounting base, so that the fourth spring 450 always pushes the lifting frame 440 upward. At this time, the top rod 632 can be inserted into the corresponding second groove 441 to ensure that the striking rod 610 retracts. The housing 100 is provided with an equipment cavity 205 located above the drying chamber. The equipment cavity 205 is provided with a second rotating shaft 260. The two ends of the second rotating shaft 260 pass through the housing 100 and extend into the outer cover 110. The two ends of the second rotating shaft 260 located in the outer cover 110 are provided with second cams 460. The upper end of the second mounting rod abuts against the second cam 460. The upper end of the baffle 240 extends into the equipment cavity 205. The second rotating shaft 260 is provided with a lever 261 that cooperates with the upper end of the baffle 240.
[0056] With the above structure, under the action of the fourth spring 450, the protrusion of the second cam 460 is always in contact with the upper end of the second mounting rod. At this time, the second rotating shaft 260 rotates and drives the second cam 460 to swing, so that it presses the upper end of the second mounting rod at intervals, thereby realizing the lifting frame 440 to lift, so that the top rod 632 slides along the second guide surface, thereby realizing the reciprocating movement of the sliding block 630, and realizing the striking rod 610 striking the corresponding screen plate 250. In order to achieve the swinging of the second cam 460, in this embodiment, the baffle 240 is set to lift the baffle 261 during the reciprocating sliding process, thereby driving the second rotating shaft 260 to rotate reciprocally, so as to achieve the swinging of the second cam 460.
[0057] In this embodiment, a third filter screen is embedded on the front and rear side walls of the housing 100 at locations corresponding to the sieve plate 250 and the second guide plate 251, and the drying assembly includes an air duct 111 disposed on the corresponding outer cover 110 corresponding to the third filter screen.
[0058] In this embodiment, the sieve plate 250 is inclined so that during actual use, the slag flows sequentially along the sieve plate 250 into the first cavity 203, thereby extending the residence time of the slag in the first cavity 203 and improving the drying effect of the drying component. In actual use, the hot air blown out by the hot air equipment connected to the air duct 111 is very weak. The air force entering the drying chamber through the air duct 111 is even weaker and will not blow away the debris.
[0059] In this embodiment, one of the two air ducts 111 is connected to an existing hot air device (e.g., a hot air furnace), so that hot air can be delivered to the first chamber 203, the second chamber 204, and the third chamber 206 through the air duct 111 and the third filter screen, and the hot air can be discharged from the third filter screen and the air duct 111 on the other side. Thus, the hot air flowing in the first chamber 203, the second chamber 204, and the third chamber 206 can dry the slag in the first chamber 203, the second chamber 204, and the third chamber 206, thereby reducing the moisture content of the slag, so as to facilitate the subsequent recycling of slag of different categories.
[0060] This invention also provides a method for pre-processing waste furniture recycling, which uses the aforementioned waste furniture recycling pre-processing device, specifically including the following steps: S1. Perform the crushing process on the wood in the waste furniture; Wood from waste furniture is fed into crushing chamber 201 through feeding hopper 101, crushing components are started to crush the wood, and the resulting debris and dust are fed into dispensing chamber 202 through slot. S2. Perform the first separation process on the debris and dust from step S1; The first rotating shaft 230 drives the scraper 231 to spray the slag mixture in the spraying chamber 202 into the drying chamber. During this process, the blowing component blows air into the drying chamber, causing the dust and slag in the slag mixture to flow with the airflow into the drying chamber away from the spraying chamber 202. The airflow is filtered through the second filter screen at the air outlet to discharge the dust and blow the lighter slag to the top of the second chamber 204 and fall into the second chamber 204 for collection. At the same time, the heavier slag falls into the first chamber 203 for collection. S3. Perform a second separation process on the heavy debris in the first cavity 203 in step S2; The heavy fragments entering the first chamber 203 flow downwards. During the flow, the heavy fragments are filtered and screened by the sieve plate 250, so that the large fragments are retained in the first chamber 203 for collection, and the small fragments are collected in the third chamber 206.
[0061] In summary, the above description is only a preferred embodiment of this application. All equivalent changes and modifications made within the scope of this application should be covered by this application.
Claims
1. A pre-processing device for recycling waste furniture, characterized in that, include: The housing (100) has a first processing cavity and a second processing cavity arranged sequentially along a first direction inside the housing (100). The first processing cavity is connected to the second processing cavity. The housing (100) also has a third processing cavity located on one side of the second processing cavity. The third processing cavity is connected to the second processing cavity. A pulverizing component is provided in the first processing chamber. The pulverizing component is used to pulverize wood and form shreds. The first screening component is located inside the second processing chamber. After the debris enters the second processing chamber from the first processing chamber, it undergoes a first screening process by the first screening component. The second screening component is located inside the third processing chamber. After the debris enters the third processing chamber from the second processing chamber, it undergoes a second screening process by the second screening component.
2. The waste furniture recycling pretreatment device according to claim 1, characterized in that, The first screening component includes: A moving component is located at the bottom of the second processing chamber, where there is debris at the bottom. Under the movement of the moving component, the moving component interacts with the debris and transports the debris from the second processing chamber to the third processing chamber. A blowing component is located on one side of the moving component. The debris is transported by the first conveying component and enters the third processing chamber through the blowing component. The debris diffuses upward under the blowing of the blowing component to form a debris flow. The debris flow is further divided into a first debris and a second debris due to weight. A first gap is formed between the first debris and the blowing component, and a second gap is formed between the second debris and the blowing component. The second gap is greater than the first gap.
3. The waste furniture recycling pretreatment device according to claim 2, characterized in that, The second processing cavity is provided with a first opening, and the second processing cavity is connected to the third processing cavity through the first opening. The blowing component is disposed at the first opening.
4. The waste furniture recycling pretreatment device according to claim 3, characterized in that, The first screening component further includes: A baffle (240) is located above the blowing member along the first direction. The baffle (240) is obliquely arranged and partially blocks the first opening. When the debris flows upward, it contacts the baffle to change the flow direction of the debris flow and move away from the second processing chamber.
5. The waste furniture recycling pretreatment device according to claim 4, characterized in that, The third processing chamber is provided with a first storage space, a second storage space and a third storage space in sequence along the second direction. The second storage space is provided with a second opening and is connected to the first storage space through the second opening. The second screening component is disposed in the second storage space and contacts the first fragment flowing downward and screens the first fragment.
6. The waste furniture recycling pretreatment device according to claim 5, characterized in that, The second screening component includes: The screening component and the first guide component are located above the screening component along the second direction. After the first fragments encounter the first guide component, they flow downwards. The screening component contacts the downward-flowing first fragments and screens them. Due to their volume, the first fragments are further divided into third fragments and fourth fragments. The volume of the third fragments is larger than that of the fourth fragments.
7. The waste furniture recycling pretreatment device according to claim 6, characterized in that, The second screening component further includes: The second guide is located at the bottom of the screening component along the first direction. The second guide is used to carry the fourth fragment after screening by the screening component and guide the fourth fragment to the first storage space.
8. The waste furniture recycling pretreatment device according to claim 7, characterized in that, The second screening component further includes: A striking component is disposed on one side of the screening component. Under the striking of the striking component, the screening component is vibrated to reduce the clogging of the screening component by the third and fourth debris.
9. A pre-treatment device for recycling waste furniture according to claim 8, characterized in that, The striking component includes: A striking rod (610) is disposed on one side of the screening component. The striking rod (610) is disposed along a first direction. The striking rod (610) is connected to a moving component to drive the striking rod (610) to move along the first direction and form a striking action on the screening component.
10. A method for pre-processing waste furniture recycling, characterized in that: The device for recycling and pre-processing waste furniture as described in claim 9 specifically includes the following steps: S1. Perform the crushing process on the wood in the waste furniture; Wood from waste furniture is added to the first processing chamber, crushed using a crushing component, and the resulting mixture of crushed debris falls into the second processing chamber. S2. Perform the first separation process on the debris and dust from step S1; The first screening component transports the debris and dust in the second processing chamber to the top of the third processing chamber, and the dust is discharged from the shell (100) by air separation through the blowing component. The second debris is collected in the third storage space, and the first debris enters the second storage space. S3. Perform a second separation process on the first fragment in the second storage space in step S2; The first fragment in the second storage space is further screened by the second screening component, so that the third fragment is left in the second storage space and the fourth fragment is introduced into the first storage space for collection.