Slag screening and conveying device for household garbage incineration power plant

Abstract

The invention relates to the technical field of slag screening, in particular to a household garbage incineration power plant slag screening and conveying device which comprises a box body, a feeding hopper and a screening piece, the screening piece comprises a bottom plate, a hollow box is arranged at the top of the bottom plate, and a filter plate is arranged in the hollow box. According to the high-efficiency oxygen-enriched tunnel kiln, a driving source drives a first linkage gear to rotate, the first linkage gear drives a second concave block to rotate through a gear ring, two first supporting columns drive a screening piece to swing through cooperation of a limiting block and a limiting ring, the screening piece swings in a wave shape, and therefore the screening effect is improved. According to the slag filtering device, the slag is enabled to perform wavy fluctuating motion on the filtering plate, the contact area of the slag and the filtering plate is increased, the contact time of the slag and the filtering plate is prolonged, so that the filtering efficiency is improved, the slag can be more uniformly distributed on the filtering plate due to wavy swinging of the screening part, and the problem of local blockage caused by material accumulation is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of slag screening, and in particular to a slag screening and conveying device for a domestic waste incineration power plant. Background Art

[0002] Slag is a kind of waste produced in iron and steel smelting, which contains a small amount of iron ore, gangue in ore, coke, etc. Slag has various uses, such as for road paving, building material production, agricultural soil improvement, etc. Different application scenarios have different requirements for the particle size of slag. By screening, slag can be classified into different particle size grades to meet the specific requirements of various applications. For example, slag used for road bases requires a larger particle size, while slag used for soil improvement requires a finer particle size.

[0003] When slag is recycled, it will first be screened by a screening device. By screening the slag, valuable slag can be separated for recycling, which can reduce the stockpile of slag, reduce the demand for land, and the screened slag can be treated and utilized more safely, reducing the risk of environmental pollution.

[0004] When some existing screening devices screen slag, the slag falls from the feed port of the screening device onto the screen, and the output end of the drive source drives the screen to slide back and forth. The screen repeatedly slides back and forth to filter the slag on its surface. When the screen slides back and forth, it is very difficult to make the distribution of slag on the screen uniform. This will cause the slag to accumulate too thickly in some areas, while there is less slag in other areas. The areas with too thick accumulation will reduce the effective filtering area of the screen, and at the same time increase the load on the screen, making the slag close to the screen unable to fully contact the screen for screening, reducing the screening efficiency. And the screen continuously slides back and forth, and the areas repeatedly contacting the slag generate frequent friction and collision, and the stress concentration phenomenon is more obvious. The screen is prone to wear, deformation or even rupture, which not only shortens the service life of the screen, but also may lead to a decrease in screening accuracy. Summary of the Invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a slag screening and conveying device for a domestic waste incineration power plant to solve the problem that when the screen slides back and forth, the slag may accumulate at specific positions on the screen, resulting in excessive screening load in these areas, while other areas are not fully utilized, affecting the overall screening efficiency.

[0006] To achieve the above object, the present invention provides the following technical solutions: The present invention includes a box body, and a feed hopper is connected to the top of the box body; The screening mechanism is arranged inside the box body. The screening mechanism includes a screening member disposed inside the box body, and the screening member is inclined. The screening member includes a bottom plate, and three equally spaced hollow boxes are connected to the top of the bottom plate. The hollow boxes are sequentially divided into a first hollow box, a second hollow box, and a third hollow box from bottom to top. The bottom of the first hollow box is fixed to the top of the bottom plate. Filter plates are provided on the inner walls of the second hollow box and the third hollow box, and the filter plates are used for filtering and screening the slag. The vibration mechanism is arranged on the screening member and is used to apply a vibration force to the filter plate to accelerate the screening of the slag. The adjustment mechanism is arranged on the screening member and is used to flip the filter plate so that the slag is evenly dispersed on its surface for screening.

[0007] Preferably, two symmetrically arranged rotating shafts are fixed to the outer walls of the two filter plates. Two symmetrically arranged rotating holes adapted to the rotating shafts are formed on the outer walls of the second hollow box and the third hollow box, and each rotating hole corresponds to a rotating shaft. The outer wall of the rotating shaft is rotatably connected to the inner wall of the rotating hole. Concave grooves are provided on the inner walls of the second hollow box and the third hollow box for the filter plate to flip inside the hollow box.

[0008] Preferably, a universal hinge seat is installed at the bottom of the bottom plate. An annular member is arranged outside the universal hinge seat. The annular member is composed of a first concave block and a second concave block. Both the first concave block and the second concave block have a cavity. The cavity of the first concave block faces upward, and the cavity of the second concave block faces downward. The inner top wall of the cavity of the first concave block is rotatably connected to the top of the first concave block.

[0009] Preferably, two first support columns with different heights are slidably connected inside the cavity of the first concave block, and the two first support columns are symmetrically arranged inside the cavity of the first concave block. Two symmetrically arranged receiving holes adapted to the first support columns are formed on the second concave block, and the two first support columns are slidably connected inside the corresponding receiving holes. The higher first support column corresponds to the top end of the bottom plate, and the lower first support column corresponds to the bottom end of the bottom plate.

[0010] Preferably, the vibration mechanism includes two first side frames symmetrically fixed to the outer wall of the third hollow box. The bottoms of the two first side frames are both connected with a first linkage block. One side of the two first linkage blocks facing the hollow box is fixed with a linkage shaft. Two symmetrically arranged linkage grooves adapted to the linkage shaft are formed on the outer wall of the second hollow box, and the linkage shaft is slidably connected inside the linkage groove. Second linkage blocks are arranged on the sides of the two first linkage blocks away from the hollow box. Each first linkage block is provided with a receiving groove adapted to the second linkage block, and the second linkage block is slidably connected inside the receiving groove. A second return spring is fixed between one side of the second linkage block located inside the receiving groove and the inner wall of the receiving groove. An outer ring is arranged outside the screening member, and the inner wall of the outer ring is an arc surface.

[0011] Preferably, a slide rail group is provided on the inner wall of the first concave block, and the slide rail group is composed of a first slide rail and a second slide rail. The first slide rail is located on the inner ring surface of the notch of the first concave block, and the second slide rail is located on the outer ring surface of the notch of the first concave block. The first slide rail has a first straight section and a convex section that are connected. The head end of the first straight section is connected to the head end of the convex section, and the tail end of the first straight section is connected to the tail end of the convex section. The first slide rail has a second straight section and a concave section that are connected. The head end of the second straight section is connected to the head end of the concave section, and the tail end of the second straight section is connected to the tail end of the concave section. The convex section and the concave section are symmetrically arranged on the first concave block. Slide shafts are fixed on the outer walls of the two first support columns. The higher first support column is slidably connected to the inside of the second slide rail through the slide shaft, and the lower first support column is slidably connected to the inside of the first slide rail through the slide shaft.

[0012] Preferably, the adjusting mechanism includes a second linkage gear rotatably connected to one end of the rotating shaft. Two linkage racks are slidably connected to the outer walls of the second hollow box and the third hollow box. The linkage racks are meshed with the second linkage gear. Two first U-shaped blocks are symmetrically fixed on the outer walls of the second hollow box and the third hollow box, and the linkage racks are slidably connected to the inner walls of the first U-shaped blocks. A second U-shaped block is fixed on the outer wall of each linkage rack. Third linkage blocks are fixed on the outer walls of the two first convex blocks. An arc-shaped plate is fixed on the top of the outer ring, and two arc-shaped strips are fixed on the inner wall of the arc-shaped plate.

[0013] Preferably, discharge ports are provided on the first hollow box, the second hollow box, and the third hollow box for discharging the filtered materials. Discharge hoppers are provided on the outer walls of the first hollow box, the second hollow box, and the third hollow box. Avoidance grooves are provided on the outer walls of the first hollow box, the second hollow box, and the third hollow box corresponding to the areas of the discharge hoppers. Each avoidance groove corresponds to a discharge hopper, and each discharge hopper corresponds to a discharge port. Each discharge port is located above the corresponding discharge hopper. The materials discharged from the discharge ports can be discharged through the discharge hoppers. An opening is provided on one side wall of the box body, and multiple discharge hoppers are installed on the inner wall of the opening.

[0014] Preferably, the tops of the two first support columns are connected with limit blocks through hinge members, and the tops of the two limit blocks have notches. A limit ring is fixed on the bottom of the bottom plate, and the limit ring is located inside the notches of the limit blocks. The notches of the two limit blocks are slidably connected to the outer wall of the limit ring.

[0015] Preferably, the bottom of the universal hinge seat is connected with a bottom column. An outer cylinder is provided outside the bottom column, and the bottom of the outer cylinder is fixed on the inner top wall of the box body. The bottom column is slidably connected to the inside of the outer cylinder. A first return spring is fixed between the inner bottom wall of the outer cylinder and the bottom of the bottom column.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The driving source drives the first linkage gear to rotate. The first linkage gear drives the second concave block to rotate through the toothed ring. Both first support columns drive the screening member to swing through the cooperation of the limiting block and the limiting ring. The screening member swings in a wavy shape, causing the slag to move in a wavy undulation on the filter plate, increasing the contact area and time between the slag and the filter plate, thereby improving the filtering efficiency. And due to the wavy swing of the screening member, the slag can be more evenly distributed on the filter plate, avoiding the problem of local blockage caused by material accumulation.

[0017] 2. By moving the sliding shaft inside the slide rail, the two first support columns drive the screening member to move downward. The second linkage block is restricted by the outer ring. The second linkage block drives the third hollow box to move upward through the first linkage block. The linkage shaft drives the second hollow box to move upward by sliding to the top of the linkage groove, causing both the second hollow box and the third hollow box to move upward. At this time, the filter plate slides to generate an upward thrust, making the slag more evenly distributed on the filter plate and ensuring the balance of the filtering effect on the entire surface of the filter plate.

[0018] 3. The second linkage block slides into the inner part of the receiving groove to compress the first return spring. As the screening member moves downward, when the second linkage block breaks away from the restriction of the outer ring, the first return spring drives the second linkage block to reset, which can release the push on the first linkage block. The first linkage block is affected by the weight of the slag and driven by the arc surface of the second linkage block cooperating with the bottom arc surface of the outer ring, and will reset. At this time, the first hollow box, the second hollow box, and the third hollow box collide with each other, transmitting the impact force to the filter plate to provide a vibration force, further preventing the slag from accumulating on the surface of the filter plate and accelerating the filtering speed.

[0019] 4. The second linkage gear cooperates with the linkage rack to drive the rotating shaft to rotate, and the rotating shaft drives the filter plate to flip, performing a lifting action on the slag flowing towards the discharge port, causing it to roll and disperse, avoiding blockage, and accelerating the filtering. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present invention.

[0021] Figure 2 is a schematic structural diagram of the screening mechanism of the present invention.

[0022] Figure 3 is a schematic structural diagram of the screening member of the present invention.

[0023] Figure 4 is a schematic structural diagram of the first three-dimensional cross-section of the screening member of the present invention.

[0024] Figure 5This is a schematic structural diagram of the vibration mechanism of the present invention.

[0025] Figure 6 This is a bottom view of the screening member of the present invention.

[0026] Figure 7 This is a schematic structural diagram of the adjustment mechanism of the present invention.

[0027] Figure 8 This is a schematic structural diagram of the annular member of the present invention.

[0028] In the figure: 10, box body; 11, feed hopper; 20, screening mechanism; 21, screening member; 2101, bottom plate; 2102, hollow box; 2103, filter plate; 2104, rotating shaft; 2105, rotating hole; 22, universal hinge seat; 23, annular member; 230, first concave block; 231, second concave block; 25, first support column; 26, limit block; 27, limit ring; 29, toothed ring; 210, first linkage gear; 211, drive source; 212, discharge port; 213, discharge hopper; 214, opening; 215, second support column; 216, bottom column; 217, outer cylinder; 218, first return spring; 30, vibration mechanism; 31, first side frame; 32, first linkage block; 33, linkage shaft; 34, linkage groove; 35, second linkage block; 36, receiving groove; 37, second return spring; 38, outer ring; 310, linkage ring; 311, slot; 312, slide rail; 313, sliding shaft; 40, adjustment mechanism; 41, second linkage gear; 42, linkage rack; 43, first U-shaped block; 44, second U-shaped block; 45, first convex block; 46, third linkage block; 47, second limit post; 48, second limit hole; 410, third return spring; 411, arc plate; 412, arc bar; 413, third limit post; 414, third limit hole; 415, fourth return spring. Detailed implementation manners

[0029] Next, each embodiment of the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention. Figures 1 to 8 As shown in the accompanying drawings, a slag screening and conveying device for a domestic waste incineration power plant includes:

[0030] As shown in the drawings Figures 1 - 8 A box body 10, the top of the box body 10 is fixedly communicated with a feed hopper 11, the feed hopper 11 can be connected to an external conveying device, and the slag conveyed by the conveying device is conveyed into the box body 10 through the feed hopper 11 for filtration and screening. ​

[0031] Inside the box body 10, a screening mechanism 20 is provided for filtering and screening the slag conveyed into the box body 10 by the feeding hopper 11.

[0032] The screening mechanism 20 includes a screening member 21 disposed inside the box body 10, and the screening member 21 is inclined. The screening member 21 includes a bottom plate 2101, and three equally spaced hollow boxes 2102 are connected to the top of the bottom plate 2101. From bottom to top, the hollow boxes 2102 are successively divided into a first hollow box, a second hollow box, and a third hollow box. The bottom of the first hollow box is fixed to the top of the bottom plate 2101. Filter plates 2103 are provided on the inner walls of the second hollow box and the third hollow box. Concave grooves are provided on the inner walls of the second hollow box and the third hollow box for the filter plates 2103 to be turned inside the hollow boxes 2102, and the filter plates 2103 are used for filtering and screening the slag.

[0033] Two symmetrically arranged rotating shafts 2104 are fixed to the outer walls of the two filter plates 2103. Two symmetrically arranged rotating holes 2105 adapted to the rotating shafts 2104 are provided on the outer walls of the second hollow box and the third hollow box, and each rotating hole 2105 corresponds to a rotating shaft 2104. The outer wall of the rotating shaft 2104 is rotatably connected to the inner wall of the corresponding rotating hole 2105 for supporting the filter plate 2103.

[0034] A universal hinge seat 22 is installed at the bottom of the bottom plate 2101. A bottom column 216 is connected to the bottom of the universal hinge seat 22. An outer cylinder 217 is provided outside the bottom column 216, and the bottom of the outer cylinder 217 is fixed to the inner bottom wall of the box body 10. The bottom column 216 is slidably connected inside the outer cylinder 217. A first return spring 218 is fixed between the inner bottom wall of the outer cylinder 217 and the bottom of the bottom column 216 for supporting the screening member 21 to maintain the stability of the screening member 21.

[0035] An annular member 23 is provided outside the universal hinge seat 22. The annular member 23 is composed of a first concave block 230 and a second concave block 231. Both the first concave block 230 and the second concave block 231 have a cavity. The cavity opening of the first concave block 230 faces upward, and the cavity opening of the second concave block 231 faces downward. The first concave block 230 is located inside the second concave block 231, and the diameter value of the first concave block 230 is smaller than the diameter value of the second concave block 231. The top of the first concave block 230 is rotatably connected to the inner top wall of the cavity of the second concave block 231. Two first support columns 25 with different heights are slidably connected inside the cavity of the first concave block 230, and the two first support columns 25 are symmetrically arranged inside the cavity of the first concave block 230.

[0036] Two receiving holes that are symmetrically arranged and adapted to the first support columns 25 are formed in the second concave block 231, and both of the two first support columns 25 are slidably connected to the inside of the corresponding receiving holes. The higher first support column 25 corresponds to the top end of the bottom plate 2101, and the lower first support column 25 corresponds to the bottom end of the bottom plate 2101. When the two first support columns 25 slide inside the cavity of the first concave block 230, the screening member 21 can swing in a wavy shape, so as to continuously change the heights of the top end and the bottom end of the screening member 21. A plurality of second support columns 215 arranged at equal intervals are fixed between the bottom of the second concave block 231 and the inner bottom wall of the box body 10 for supporting the annular member 23.

[0037] Limit blocks 26 are connected to the tops of both of the two first support columns 25 through hinge members, and both of the two limit blocks 26 have notches at their tops. A limit ring 27 is fixed to the bottom of the bottom plate 2101, and the limit ring 27 is located inside the notches of the limit blocks 26. The notches of the two limit blocks 26 are slidably connected to the outer wall of the limit ring 27. The limit blocks 26 cooperate with each other to support the screening member 21, so as to maintain the stability of the screening member 21 during swinging.

[0038] A toothed ring 29 is fixed to the outer wall of the first concave block 230. A first linkage gear 210 is meshed with the toothed ring 29. A driving shaft is fixed to the bottom of the first linkage gear 210. A side support plate is fixed to the inner wall of the box body 10. A limit through hole is formed in the side support plate, and the outer wall of the driving shaft is rotatably connected to the inner wall of the limit through hole. A driving source 211 is installed on the inner bottom wall of the box body 10, and the output end of the driving source 211 is fixed to the bottom of the driving shaft. The driving source 211 drives the toothed ring 29 to rotate through the driving shaft and the first linkage gear 210, and the toothed ring 29 drives the first support columns 25 to rotate circumferentially around the first concave block 230 through the first concave block 230, so that the screening member 21 swings in a wavy shape.

[0039] Discharge ports 212 are formed in the first hollow box, the second hollow box and the third hollow box for discharging the filtered materials. Discharge hoppers 213 are arranged on the outer walls of the first hollow box, the second hollow box and the third hollow box. Avoidance grooves are formed in the areas of the outer walls of the first hollow box, the second hollow box and the third hollow box corresponding to the discharge hoppers 213. Each avoidance groove corresponds to one discharge hopper 213, and each discharge hopper 213 corresponds to one discharge port 212. Each discharge port 212 is located above the corresponding discharge hopper 213. The materials discharged from the discharge ports 212 can be discharged through the discharge hoppers 213. An opening 214 is formed in one side wall of the box body 10, and a plurality of discharge hoppers 213 are installed on the inner wall of the opening 214.

[0040] When the device is in use, an external conveying device is connected to the hopper opening of the feed hopper 11, and the discharge hopper 213 is installed inside the opening 214 by means of bolts and nuts or welding. When the slag is conveyed to the feed hopper 11 through the conveying device, the slag inside the feed hopper 11 first falls into the inside of the third hollow box. Since the holes of the filter plate 2103 inside the third hollow box are larger than the holes of the filter plate 2103 inside the second hollow box, when the slag is first filtered through the filter plate 2103 inside the third hollow box, the larger slag will remain on the surface of the filter plate 2103, while the smaller slag will remain on the surface of the filter plate 2103 inside the second hollow box. Moreover, the smaller slag and dust are filtered into the inside of the first hollow box for collection.

[0041] When the output end of the drive source 211 drives the second concave block 231 to rotate through the toothed ring 29 and the first linkage gear 210, and the second concave block 231 drives the two first support columns 25 to slide inside the cavity of the first concave block 230. Since the heights of the two first support columns 25 are different, the two first support columns 25 drive the limit block 26 to slide on the limit ring 27 through the hinge. At this time, the bottom plate 2101 swings in a wavy shape, and the higher end of the screening member 21 will slowly turn into the bottom end as the bottom plate 2101 swings, and the lower end of the screening member 21 will slowly turn into the higher end as the bottom plate 2101 swings. Thus, the top and bottom ends of the screening member 21 are continuously changed, enabling the screening member 21 to undulate with each other in a wavy line shape, so that the slag rolls inside the filter plate 2103, and the filter plate 2103 filters the slag evenly, avoiding blockage caused by the slag continuously staying in one area of the filter plate 2103.

[0042] As the hollow box 2102 swings, when the bottom end of the bottom plate 2101 corresponds to the opening 214, the slag filtered inside the first hollow box, the second hollow box, and the third hollow box will be discharged through the corresponding discharge ports 212 in sequence, and thus discharged to the outside of the box 10 through the discharge hopper 213. And the staff can make the devices for subsequent processing of the slag correspond to the three discharge hoppers 213 respectively, which is convenient for the subsequent processing of the slag.

[0043] A vibration mechanism 30 is provided on the screening member 21 to apply vibration to the hollow box 2102 and the filter plate 2103, thereby accelerating the filtration of the slag on the filter plate 2103.

[0044] The vibration mechanism 30 includes two first side frames 31 symmetrically fixed on the outer wall of the third hollow box. At the bottom of each of the two first side frames 31, a first linkage block 32 is connected. On the side of each of the two first linkage blocks 32 facing the hollow box 2102, a linkage shaft 33 is fixed. On the outer wall of the second hollow box, two linkage grooves 34 adapted to the linkage shafts 33 are symmetrically provided. Each linkage groove 34 corresponds to a linkage shaft 33, and the linkage shaft 33 is slidably connected inside the linkage groove 34. The initial position of the linkage shaft 33 is at the bottom of the linkage groove 34. When the first linkage block 32 moves upward, the first linkage block 32 cooperates with the linkage shaft 33 to enable the second hollow box and the third hollow box to move upward and unfold with each other. At this time, the filter plate 2103 has an upward driving force, and the upward thrust makes the distribution of the slag on the filter plate 2103 more uniform.

[0045] On the side of each of the two first linkage blocks 32 away from the hollow box 2102, a second linkage block 35 is provided. The side of the second linkage block 35 away from the first linkage block 32 is arc-shaped. On each first linkage block 32, a receiving groove 36 adapted to the second linkage block 35 is provided, and the second linkage block 35 is slidably connected inside the receiving groove 36. A second return spring 37 is fixed between the side of the second linkage block 35 located inside the receiving groove 36 and the inner wall of the receiving groove 36 for supporting the second linkage block 35, so as to facilitate driving the second linkage block 35 to reset.

[0046] An outer ring 38 is provided outside the screening member 21, and the inner wall of the outer ring 38 is an arc surface. Linkage rings 310 are fixed at the bottom of the second hollow box and the bottom of the third hollow box. Slots 311 adapted to the linkage rings 310 are provided at the top of the first hollow box and the second hollow box. The linkage ring 310 of the third hollow box is inserted inside the slot 311 of the second hollow box, and the linkage ring 310 of the second hollow box is inserted inside the slot 311 of the first hollow box.

[0047] A slide rail group 312 is provided on the inner wall of the first concave block 230. The slide rail group 312 is composed of a first slide rail and a second slide rail. The first slide rail is located on the inner ring surface of the cavity of the first concave block 230, and the second slide rail is located on the outer ring surface of the cavity of the first concave block 230. The first slide rail has a first straight section and a convex section that are connected. The head end of the first straight section is connected to the head end of the convex section, and the tail end of the first straight section is connected to the tail end of the convex section. The first slide rail has a second straight section and a concave section that are connected. The head end of the second straight section is connected to the head end of the concave section, and the tail end of the second straight section is connected to the tail end of the concave section. The convex section and the concave section are symmetrically arranged on the first concave block 230. Slide shafts 313 are fixed on the outer walls of both first support columns 25. The higher first support column 25 is slidably connected inside the second slide rail through the slide shaft 313, and the lower first support column 25 is slidably connected inside the first slide rail through the slide shaft 313.

[0048] When the second concave block 231 drives the first support column 25 to slide inside the first concave block 230, when the higher first support column 25 slides from the second straight section to the inner concave section through the connected sliding shaft 313, at this time, the lower first support column 25 also slides from the second straight section to the convex section through the connected sliding shaft 313, and the lower first support column 25 moves upward while the higher first support column 25 moves downward, causing the screening member 21 to change from an inclined state to a vertical state. However, since the height of the inner concave section is higher than that of the convex section, the higher first support column 25 can drive the bottom plate 2101 to move downward, and the bottom column 216 moves downward inside the outer cylinder 217 to compress the first return spring 218.

[0049] The bottom plate 2101 also moves downward, and the lower end of the arc surface of the second linkage block 35 abuts against the upper end of the inner wall of the linkage ring 310, and the inner wall of the linkage ring 310 restricts the second linkage block 35. The second linkage block 35 first drives the third hollow box to move upward through the first linkage block 32 and the first side frame 31. At this time, the linkage shaft 33 slides from the bottom end of the linkage groove 34 to its top end. When the third hollow box moves upward to the limit position, the linkage shaft 33 also abuts against the top of the linkage groove 34 to drive the second hollow box to move upward, and at this time, the linkage ring 310 moves upward inside the connected slot 311.

[0050] When the bottom plate 2101 moves downward to the limit position, the second linkage block 35 also slides below the outer ring 38. The second linkage block 35 is no longer restricted by the outer ring 38, and the second return spring 37 drives the second linkage block 35 to reset. The upper end of the arc surface of the second linkage block 35 slides on the lower end of the inner wall of the linkage ring 310. The second linkage block 35 drives the first linkage block 32 to move downward to reset, and the linkage shaft 33 moves downward to the bottom end of the linkage groove 34. The linkage ring 310 also moves downward to the bottom end of the slot 311. At this time, the first hollow box, the second hollow box, and the third hollow box collide with each other, so that the force generated by the collision of the hollow box 2102 is transmitted to the filter plate 2103, thereby providing a vibration force to the filter plate 2103, which can prevent slag from accumulating on the surface of the filter plate 2103, and thus can accelerate the filtering of slag.

[0051] An adjusting mechanism 40 is provided on the screening member 21 for adjusting the angle of the filter plate 2103, thereby accelerating the filtering of slag on the filter plate 2103.

[0052] The adjusting mechanism 40 includes a second linkage gear 41 rotatably connected to one end of the rotating shaft 2104. Two linkage racks 42 are slidably connected to the outer walls of the second hollow box and the third hollow box respectively, and each linkage rack 42 corresponds to a second linkage gear 41. Each linkage rack 42 is meshed with the second linkage gear 41. Two first U-shaped blocks 43 are symmetrically fixed to the outer walls of the second hollow box and the third hollow box respectively, and each first U-shaped block 43 corresponds to a linkage rack 42. The linkage rack 42 is slidably connected to the inner wall of the first U-shaped block 43. A second U-shaped block 44 is fixed to the outer wall of each linkage rack 42. There is a first convex block 45 between every two symmetrically arranged linkage racks 42. Third linkage blocks 46 are fixed to the outer walls of the two first convex blocks 45. An arc-shaped plate 411 is fixed to the top of the outer ring 38. Two arc-shaped strips 412 are fixed to the inner wall of the arc-shaped plate 411, and each arc-shaped strip 412 corresponds to a third linkage block 46.

[0053] A second limit post 47 is fixed to one side of each second U-shaped block 44. A second limit hole 48 adapted to the second limit post 47 is formed in each first U-shaped block 43, and the second limit post 47 is slidably connected to the inside of the corresponding second limit hole 48. A third return spring 410 is fixed between each first U-shaped block 43 and the corresponding second U-shaped block 44.

[0054] A third limit post 413 is fixed to the stepped surface of each first convex block 45. Third limit holes 414 adapted to the third limit post 413 are formed in the second hollow box and the third hollow box respectively, and the third limit post 413 is slidably connected to the inside of the corresponding third limit hole 414. A fourth return spring 415 is fixed between the first hollow box and the second hollow box and the corresponding second U-shaped block 44.

[0055] When the sieving member 21 rotates in a wavy shape, when the area of the sieving member 21 corresponding to the arc-shaped plate 411 moves upward, it means that the area of the arc-shaped plate 411 corresponding to the sieving member 21 is at the top. The third linkage block 46 of the first convex block 45 will abut against the arc-shaped surface at the bottom of the arc-shaped strip 412, and the arc-shaped strip 412 will squeeze the third linkage block 46. The third linkage block 46 drives the first convex block 45 to slide towards the sieving member 21, and the third limit post 413 of the first convex block 45 slides inside the third limit hole 414. At the same time, the fourth return spring 415 is compressed, and the protruding part of the first convex block 45 abuts against the two connected linkage racks 42. The linkage racks 42 will slide inside the first U-shaped block 43, and the second U-shaped block 44 compresses the third return spring 410.

[0056] The second limit post 47 slides inside the second limit hole 48 to limit the linkage rack 42, and the linkage rack 42 drives the connected filter plate 2103 to rotate through the second linkage gear 41. Looking at the interior of the box body 10 from the box opening of the box body 10, at this time, the screening member 21 is higher on the left and lower on the right. Then, the area of the hollow box 2102 corresponding to the opening 214 is lower, and the rotation direction of the filter plate 2103 is counterclockwise. That is to say, when the filter plate 2103 flips, since the materials all roll to the discharge port 212, the filter plate 2103 will perform an action of lifting the slag flowing to the area of the discharge port 212. That is to say, the action of lifting the slag like a ladle makes the slag roll over, so that the slag is dispersed on the filter plate 2103, avoiding the blockage of the slag on the surface of the filter plate 2103, and thus accelerating the filtration of the slag.

[0057] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description, rather than indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0058] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0059] The term "including" or any other similar term is intended to cover non-exclusive inclusion, so that a process, article, or device / equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in these processes, articles, or devices.

[0060] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. A slag screening and conveying device for a domestic waste incineration power plant, characterized in that: It comprises a box body (10), the top of which is connected to a feed hopper (11); A screening mechanism (20), wherein the screening mechanism (20) is arranged inside the box body (10), the screening mechanism (20) comprises a screening element (21) arranged inside the box body (10), and the screening element (21) is in an inclined shape, the screening element (21) comprises a bottom plate (2101), the top of the bottom plate (2101) is connected to three hollow boxes (2102) arranged at equal distances, the hollow boxes (2102) are divided into a first hollow box, a second hollow box and a third hollow box from bottom to top, the bottom of the first hollow box is fixed to the top of the bottom plate (2101), and the inner walls of the second hollow box and the third hollow box are both provided with filter plates (2103), and the filter plates (2103) are used to filter and screen the slag; A vibration mechanism (30), the vibration mechanism (30) being arranged on the screening element (21) and being used to apply a vibration force to the filter plate (2103) to accelerate the screening of the slag; An adjusting mechanism (40) is disposed on the screening element (21) and is used to flip the filter plate (2103) so that the slag is evenly dispersed on its surface for screening.

2. The slag screening and conveying device for a domestic waste incineration power plant according to claim 1 is characterized in that: Two symmetrical rotating shafts (2104) are fixed to the outer walls of the two filter plates (2103); two symmetrical rotating holes (2105) matching the rotating shafts (2104) are opened on the outer walls of the second hollow box and the third hollow box; each rotating hole (2105) corresponds to a rotating shaft (2104); and the outer wall of the rotating shaft (2104) is rotatably connected to the inner wall of the rotating hole (2105); and the inner walls of the second hollow box and the third hollow box have concave grooves for the filter plates (2103) to be turned over inside the hollow box (2102).

3. The slag screening and conveying device for a domestic waste incineration power plant according to claim 2, characterized in that: A universal hinge seat (22) is installed at the bottom of the base plate (2101), and an annular member (23) is arranged outside the universal hinge seat (22). The annular member (23) is composed of a first concave block (230) and a second concave block (231). The first concave block (230) and the second concave block (231) both have a groove cavity. The groove cavity of the first concave block (230) faces upward, and the groove cavity of the second concave block (231) faces downward. The inner top wall of the groove cavity of the first concave block (230) is rotatably connected to the top of the first concave block (230).

4. The slag screening and conveying device for a domestic waste incineration power plant according to claim 3 is characterized in that: Two first support columns (25) of different heights are slidably connected inside the groove cavity of the first concave block (230), and the two first support columns (25) are symmetrically arranged inside the groove cavity of the first concave block (230). Two symmetrical receiving holes matching the first support columns (25) are opened on the second concave block (231), and the two first support columns (25) are slidably connected inside the corresponding receiving holes, and the higher first support column (25) corresponds to the top end of the bottom plate (2101), and the lower first support column (25) corresponds to the bottom end of the bottom plate (2101).

5. The slag screening and conveying device for a domestic waste incineration power plant according to claim 4, characterized in that: The vibration mechanism (30) comprises two first side frames (31) symmetrically fixed on the outer wall of the third hollow box, the bottoms of the two first side frames (31) are connected to first linkage blocks (32), the two first linkage blocks (32) are fixed with linkage shafts (33) on one side facing the hollow box (2102), the outer wall of the second hollow box is symmetrically provided with two linkage grooves (34) adapted to the linkage shafts (33), the linkage shafts (33) are slidably connected inside the linkage grooves (34), and the two first linkage blocks (32) are away from the hollow box. A second linkage block (35) is provided on one side of the box (2102); a receiving groove (36) matching the second linkage block (35) is provided on each first linkage block (32); the second linkage block (35) is slidably connected inside the receiving groove (36); a second return spring (37) is fixed between one side of the second linkage block (35) located inside the receiving groove (36) and the inner wall of the receiving groove (36); an outer ring (38) is provided on the outside of the sub-screening element (21); and the inner wall of the outer ring (38) is in the form of an arc surface.

6. The slag screening and conveying device for a domestic waste incineration power plant according to claim 5, characterized in that: The inner wall of the first concave block (230) is provided with a slide rail group (312), and the slide rail group (312) is composed of a first slide rail and a second slide rail, the first slide rail is located on the inner annular surface of the notch of the first concave block (230), and the second slide rail is located on the outer annular surface of the notch of the first concave block (230), and the first slide rail has a first straight section and a convex section that are connected, the head end of the first straight section is connected to the head end of the convex section, the tail end of the first straight section is connected to the tail end of the convex section, and the first slide rail has a second straight section that is connected The first support column (25) comprises a first straight section and a concave section, the head end of the second straight section is connected to the head end of the concave section, the tail end of the second straight section is connected to the tail end of the concave section, and the convex section and the concave section are symmetrically arranged on the first concave block (230), the outer walls of the two first support columns (25) are fixed with sliding shafts (313), the higher first support column (25) is slidably connected to the inside of the second slide rail through the sliding shaft (313), and the lower first support column (25) is slidably connected to the inside of the first slide rail through the sliding shaft (313).

7. The slag screening and conveying device for a domestic waste incineration power plant according to claim 6, characterized in that: The adjustment mechanism (40) comprises a second linkage gear (41) rotatably connected to one end of the rotating shaft (2104); two linkage racks (42) are slidably connected to the outer walls of the second hollow box and the third hollow box; the linkage racks (42) are meshingly connected to the second linkage gear (41); two first U-shaped blocks (43) are symmetrically fixed to the outer walls of the second hollow box and the third hollow box; the linkage racks (42) are slidably connected to the inner walls of the first U-shaped blocks (43); the outer wall of each linkage rack (42) is fixed with a second U-shaped block (44); the outer walls of the two first protrusions (45) are fixed with a third linkage block (46); the top of the outer ring (38) is fixed with an arc plate (411); the inner wall of the arc plate (411) is fixed with two arc bars (412).

8. The slag screening and conveying device for a domestic waste incineration power plant according to claim 7, characterized in that: The first hollow box, the second hollow box and the third hollow box are each provided with a discharge port (212) for discharging filtered materials. The outer walls of the first hollow box, the second hollow box and the third hollow box are each provided with a discharge hopper (213). The outer walls of the first hollow box, the second hollow box and the third hollow box are each provided with an avoidance groove in an area corresponding to the discharge hopper (213). Each avoidance groove corresponds to a discharge hopper (213). Each discharge hopper (213) corresponds to a discharge port (212). Each discharge port (212) is located above the corresponding discharge hopper (213). Materials discharged from the discharge port (212) can be discharged through the discharge hopper (213). A side wall of the box body (10) is provided with an opening (214), and a plurality of discharge hoppers (213) are installed on the inner wall of the opening (214).

9. The slag screening and conveying device for a domestic waste incineration power plant according to claim 8, characterized in that: The tops of the two first support columns (25) are connected to the limit blocks (26) via hinges, and the tops of the two limit blocks (26) are provided with notches, a limit ring (27) is fixed to the bottom of the base plate (2101), and the limit ring (27) is located inside the notches of the limit blocks (26), and the notches of the two limit blocks (26) are slidably connected to the outer wall of the limit ring (27).

10. The slag screening and conveying device for a domestic waste incineration power plant according to claim 9, characterized in that: The bottom of the universal hinge seat (22) is connected to a bottom column (216), an outer cylinder (217) is arranged outside the bottom column (216), the bottom of the outer cylinder (217) is fixed to the inner top wall of the box body (10), the bottom column (216) is slidably connected to the inside of the outer cylinder (217), and a first return spring (218) is fixed between the inner bottom wall of the outer cylinder (217) and the bottom of the bottom column (216).

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