A screening machine

Abstract

The application relates to the technical field of material screening equipment, and particularly relates to a screening machine, which comprises a supporting assembly, a screening assembly and a driving assembly, the screening assembly comprises a drum screen, a discharging groove and a plurality of discharging pieces for discharging materials, the drum screen is arranged obliquely, the drum screen is rotationally connected to the supporting assembly, materials are injected into the drum screen from a higher end of the drum screen, the drum screen is used for screening the materials, the discharging groove is located at the bottom of the drum screen, the discharging groove is connected to the supporting assembly, the top of the discharging groove is matched with the bottom of the drum screen, a discharging port is arranged at the bottom of the discharging groove, the plurality of discharging pieces are close to the discharging port, the plurality of discharging pieces are distributed along the arrangement direction of the discharging groove, and the discharging pieces located at a lower end of the drum screen are used for discharging the heavier materials through the drum screen; the driving assembly is connected to the supporting assembly, the driving assembly is connected with the drum screen to drive the drum screen to rotate; and the application has the effect of improving the blockage of sheet material particles in the screen holes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of material screening equipment, in particular to a screening machine. BACKGROUND

[0002] Waste household appliance recycling has important significance in environmental protection and resource conservation, especially in the fields of rare metal extraction and old appliance parts renovation processing. As one of the key equipment, the screening machine directly affects the quality and recycling efficiency of the recycled materials. In order to improve the economic value and environmental protection benefits of waste appliance recycling, efficient screening equipment is an essential part, and its performance directly determines the quality of the recycled materials and the cost of the recycling process.

[0003] In related technologies, the application file with publication number CN218531784U discloses a screening device for a PCB board composite material recycling crusher, which comprises a base, a sieve box and a vibrating mechanism. The sieve box is located above the base and is inclinedly arranged. The higher end of the sieve box is provided with a material guide box, and the lower end of the sieve box is open. The two ends of the sieve box are connected with the base through first and second elastic connecting members. The height of the first elastic connecting member is less than that of the second elastic connecting member. The vibrating mechanism is located at the two sides of the second elastic connecting member and acts on the higher end of the sieve box. A plurality of sieve nets are arranged on the sieve box along the length direction. The diameters of the mesh holes of the plurality of sieve nets gradually increase from top to bottom. A plurality of material containing box insertion slots corresponding to each sieve net are arranged on the base.

[0004] For the related technologies in the above, the above screening device can screen particles, but when processing PBC board materials from waste household appliances and other irregular-shaped materials that are easy to be stuck in the sieve holes, it is difficult to efficiently complete the screening operation, and the phenomenon of board material particles being stuck in the sieve holes often occurs, thereby seriously affecting the working efficiency and reliability of the screening machine. SUMMARY

[0005] In order to improve the problem of board material particles being stuck in the sieve holes, the present application provides a screening machine.

[0006] The screening machine provided by the present application adopts the following technical scheme:

[0007] The application discloses a screening machine, which comprises a supporting assembly, a screening assembly and a driving assembly, wherein the screening assembly comprises a drum screen, a discharging groove and a plurality of discharging pieces for discharging materials; the drum screen is arranged in an inclined manner and is rotationally connected to the supporting assembly; materials are injected into the drum screen from a higher end of the drum screen; the drum screen is used for screening the materials; the discharging groove is arranged at the bottom of the drum screen and is connected to the supporting assembly; the top of the discharging groove is matched with the bottom of the drum screen; a discharging opening is formed in the bottom of the discharging groove; and the plurality of discharging pieces are arranged close to the discharging opening and are distributed along the arrangement direction of the discharging groove; the discharging piece arranged at the lower end of the drum screen is used for discharging the heavier materials through the drum screen.

[0008] The driving assembly is connected to the supporting assembly and is connected with the drum screen to drive the rotation of the drum screen.

[0009] According to the technical scheme, when the materials need to be screened, the driving assembly is started first to drive the rotation of the drum screen; the materials are injected into the drum screen; the drum screen can screen the materials; the lighter materials can flow out of the discharging piece arranged close to the higher end of the drum screen into a designated container; the heavier materials can flow out of the discharging piece arranged at the lower end of the drum screen into a designated container; the drum screen is arranged in an inclined manner and is rotationally connected to the supporting assembly; the materials are injected into the drum screen from the higher end of the drum screen; the drum screen screens the materials; compared with the related art, the discharging groove is arranged at the bottom of the drum screen and is matched with the bottom of the drum screen; the discharging opening is formed in the bottom of the discharging groove; the plurality of discharging pieces are arranged close to the discharging opening and are distributed along the arrangement direction of the discharging groove; the discharging piece arranged at the lower end of the drum screen is convenient for discharging the heavier materials; the drum screen rotates continuously, so that the situation that the materials are blocked in the screen holes is reduced; the driving assembly is connected to the supporting assembly and drives the rotation of the drum screen, thereby realizing the effective screening of the materials and improving the problem that the plate particles are stuck in the screen holes.

[0010] In a specific embodiment, the screening machine further comprises a feeding assembly arranged at the higher end of the drum screen; the feeding assembly comprises a feeding box and a processing piece; the feeding box is connected to the supporting assembly; the top of the feeding box is provided with a feeding opening for feeding the materials; the bottom of the feeding box is arranged in an inclined manner; the bottom of the feeding box is provided with a discharging opening at the lower side for discharging the materials; the discharging opening is communicated with the inside of the drum screen; the processing piece comprises a rotating rod, a plurality of blades and a rotating motor; the rotating rod is arranged in the feeding box; one end of the rotating rod is rotationally connected to the inner wall of the feeding box; the plurality of blades are uniformly distributed on the outer wall of the rotating rod; the plurality of blades are used for secondary crushing the materials; the shell of the rotating motor is fixed to the feeding box; and the output shaft of the rotating motor is fixedly arranged on the rotating rod in a coaxial manner.

[0011] By adopting the above technical scheme, when the material needs to be screened, the feeding assembly is started, the rotating motor drives the rotating rod to rotate, which can drive the blade to rotate, the crushed material is injected into the feeding box, the material is crushed again by the blade, the material becomes smaller, and the crushed material can enter the drum screen for screening. The feeding box in the feeding assembly is connected with the supporting assembly, and the material is guided into the drum screen through the inclined bottom. The rotating rod in the processing piece cooperates with the plurality of blades to crush the material again under the driving of the rotating motor, which is further conducive to reducing the situation that the material blocks the screen hole, and improves the screening efficiency and quality of the material.

[0012] In a specific implementation scheme, a dust reduction assembly is further included, which includes a dust reduction piece, the dust reduction piece includes a water tank, a horizontal pipe, a water pipe, a plurality of atomizing nozzles and a water pump, the water tank is fixed to the supporting assembly, the water tank is used to contain water, the horizontal pipe is located in the feeding box, the horizontal pipe is close to the bottom of the feeding box, the horizontal pipe is fixed to the feeding box, one end of the water pipe is provided in the water tank, the other end of the water pipe passes through the feeding box and is communicated with the horizontal pipe, a plurality of atomizing nozzles are uniformly and spacedly arranged on the horizontal pipe along the length direction of the horizontal pipe, the atomizing nozzles are communicated with the horizontal pipe, the spray nozzles of the atomizing nozzles are directed to the side where the material flows, and the water pump is fixed to the water pipe.

[0013] By adopting the above technical scheme, the crushed material is injected into the feeding box, the material is crushed again by the blade, at the same time, the water pump in the dust reduction assembly is started, the water in the water tank is sprayed onto the material through the atomizing nozzles, then the sprayed material enters the drum screen, and the dust reduction piece in the dust reduction assembly is cooperated with the water tank, the horizontal pipe, the water pipe, the plurality of atomizing nozzles and the water pump, which can spray the material before the material enters the drum screen, effectively reduces the dust flying in the material screening process, improves the cleanliness of the working environment, the spray nozzles of the atomizing nozzles are directed to the side where the material flows, and the spraying effect is ensured. On the other hand, the surface of the sprayed material adheres water, which makes the surface smooth, and is conducive to reducing the friction between the material and the drum screen, and further reducing the situation that the material blocks the screen hole.

[0014] In a specific implementation scheme, the dust reduction assembly further includes a first filter screen, the bottom of the feeding box is provided with a avoiding slot close to the discharge port, the avoiding slot is communicated with the discharge port, the first filter screen is located in the avoiding slot, the first filter screen is arranged along the inclination direction of the bottom of the feeding box, the first filter screen is fixed to the feeding box, and the surface of the first filter screen is flush with the bottom of the feeding box.

[0015] The water tank is located at the bottom of the feeding box, and the top of the water tank is communicated with the lower side of the bottom of the feeding box.

[0016] By adopting the technical scheme, the first filter screen is arranged and fixed at the position close to the discharge port at the bottom of the feeding box, which can effectively intercept the material with large particles and prevent it from flowing into the water tank directly with the spraying water, so as to avoid accumulation of a large amount of impurities in the water tank, and meanwhile, the design that the first filter screen is flush with the bottom of the feeding box can ensure smooth flow of the material and does not affect the normal screening process of the material, the water tank is located at the bottom of the feeding box and communicates with the lower side of the bottom of the feeding box, so that the sprayed water can flow back to the water tank smoothly, realizing recycling of water resources and reducing equipment operation cost.

[0017] In a specific implementable scheme, the dust falling assembly further comprises a second filter screen, the second filter screen is located in the avoiding groove, the second filter screen is arranged along the inclined direction of the bottom of the feeding box, the second filter screen is fixed to the feeding box, the first filter screen and the second filter screen are arranged in parallel, the first filter screen is located above the second filter screen, the filter hole of the first filter screen is larger than that of the second filter screen, a filtering gap is left between the first filter screen and the second filter screen, and a water passing gap is left between the second filter screen and the bottom of the avoiding groove.

[0018] By adopting the technical scheme, the second filter screen is arranged, which can further filter the impurities in the water, effectively reduce the impurities in the spraying water from entering the water tank, and improve the recycling rate of the water.

[0019] In a specific implementable scheme, the discharging piece comprises a discharging plate and two baffle plates, the discharging plate is arranged obliquely, the higher side of the discharging plate is fixed to the discharging groove, the two baffle plates are respectively fixed to the two sides opposite to the discharging plate, the baffle plates are arranged perpendicularly to the discharging plate, the discharging plate and the two baffle plates form a discharging gap, the discharging gap communicates with the discharge port, and the discharging gap formed by the discharging piece close to the lower end of the drum screen communicates with the inside of the drum screen.

[0020] The screening machine further comprises a plurality of drying assemblies, the drying assemblies correspond to the discharging pieces one by one, the drying assembly comprises a closing plate and a heating plate, the closing plate is arranged in parallel to the discharging plate and is fixed to the side of the baffle plate away from the discharging plate, and the heating plate is located on the side of the closing plate close to the discharging plate and is fixed to the closing plate, and the heating plate is used for heating the discharging gap.

[0021] By adopting the above technical scheme, the screened material slides to the discharge plate through the discharge opening, and then flows along the surface of the discharge plate to the designated position. In the process of material flow, the heating plate can dry the material. The arrangement of the discharge part enables the material to slide down the inclined discharge plate into the designated container, improving the collection efficiency of the material. The baffle and the discharge plate form a discharge gap, ensuring smooth falling of the material while reducing material scattering, enhancing the material management capability of the screening machine. The arrangement of the heating plate can heat the material in the discharge gap, which helps to dry the material and avoids the adhesion of damp material on the discharge part, thereby improving the screening efficiency.

[0022] In a specific implementation scheme, the screening assembly further comprises a support member, the support member comprising a support shaft, a plurality of support rods and a plurality of abutting rings, the support shaft being coaxially arranged in the drum screen, the lower end of the support shaft being connected to the support assembly, the plurality of support rods being evenly divided into multiple groups, the multiple groups of support rods being spaced along the length direction of the support shaft, each group of support rods containing four support rods, the four support rods being evenly distributed in the circumferential direction of the support shaft, the support rods being arranged perpendicularly to the support shaft, one end of each support rod being fixed to the support shaft, each group of support rods corresponding to one abutting ring, the end of each support rod away from the support shaft being fixed to the inner wall of the abutting ring, the outer wall of the abutting ring being attached to the inner wall of the drum screen, the outer wall of the drum screen being coaxially provided with a plurality of connecting rings along the axial direction, the connecting rings corresponding one-to-one to the abutting rings, and the connecting rings being connected to the abutting rings.

[0023] The driving assembly is connected to the support shaft to drive the rotation of the support shaft.

[0024] By adopting the above technical scheme, the arrangement of the support member enhances the overall structural stability of the drum screen, enabling the drum screen to operate stably during high-speed rotation, effectively preventing deformation or displacement of the drum screen during material screening, and improving the reliability and screening efficiency of the screening machine. The cooperative design of the connecting rings and the abutting rings further improves the connection stability between the drum screen and the support assembly, ensuring smooth rotation of the drum screen under the drive of the driving assembly, thereby improving the material screening effect.

[0025] In a specific implementation scheme, the screening assembly further comprises a poking member, the poking member comprising a poking rod and a plurality of poking pieces, the poking rod being located outside the drum screen, the arrangement direction of the poking rod being consistent with the arrangement direction of the support shaft, both ends of the poking rod being connected to the support assembly, the plurality of poking pieces being fixed to the poking rod, the plurality of poking pieces being spaced along the length direction of the poking rod, and the end of each poking piece away from the poking rod being lapped onto the outer wall of the drum screen.

[0026] By adopting the above technical scheme, in the process of rotation of the drum screen, the plurality of pokers are overlapped on the surface of the drum screen, and when the drum screen rotates, a resistance is formed, the arrangement of the poking member can improve the stability of the drum screen in the rotation process, and can effectively poke the material stuck in the screen hole of the drum screen, avoid the material from being stuck, and improve the screening efficiency.

[0027] In one specific implementation scheme, the screening assembly further comprises two fixed rings, each of the two fixed rings is coaxially fixed to one end of the drum screen, and the inner wall of the fixed ring is flush with the inner wall of the drum screen.

[0028] The driving assembly comprises a driving member and a guide member, the driving member is connected with the support shaft, the guide member is located at the higher end of the drum screen, the guide member comprises two guide seats and two guide wheels, the two guide seats are fixed to the side of the support assembly close to the drum screen, the two guide seats are distributed along the diameter direction of the fixed ring located at the higher end of the drum screen, the guide wheel corresponds to the guide seat one by one, the guide wheel is rotationally connected with the guide seat, and the outer wall of the fixed ring located at the higher end of the drum screen is provided with a ring groove for the guide wheel to extend into.

[0029] By adopting the above technical scheme, the two fixed rings are coaxially fixed to the two ends of the drum screen, so that the material can smoothly enter and flow out of the drum screen, the inner wall of the fixed ring is flush with the inner wall of the drum screen, and the smooth flow of the material in the drum screen is ensured; the driving member is connected with the support shaft to drive the drum screen to rotate and realize the screening of the material; the two guide seats in the guide member are fixed to the support assembly respectively, the guide wheel is rotationally connected with the guide seat and extends into the ring groove in the outer wall of the fixed ring, and the stability of the rotation of the drum screen is improved.

[0030] In one specific implementation scheme, the dust falling assembly further comprises a protection member, the protection member is a protection cover, the protection cover is located above the drum screen, the opening of the protection cover faces the side of the drum screen, the opening of the protection cover is in communication with the opening of the feeding chute, and the protection cover is detachably connected with the feeding chute.

[0031] By adopting the above technical scheme, the added protection member can effectively reduce the splashing of liquid during the rotation of the drum screen, improve the use safety of the device and the cleanliness of the working environment; the design that the protection cover is detachably connected with the feeding chute facilitates regular cleaning and maintenance, and ensures long-term stable operation of the equipment.

[0032] In summary, the present application has at least one of the following beneficial technical effects:

[0033] 1. The designed screening machine, compared with the related art, the feed chute is located at the bottom of the drum screen and fits the bottom of the drum screen, the bottom of the feed chute is provided with a feed opening, a plurality of feed pieces are distributed along the direction of the feed chute, the feed piece located at the lower end of the drum screen facilitates the feeding of heavy materials, the drum screen does not stop rotating, which can reduce the situation that the materials block the screen holes, the driving assembly is connected with the supporting assembly and drives the drum screen to rotate, thereby realizing effective screening of the materials and being beneficial to improving the problem that the sheet particles are stuck in the screen holes.

[0034] 2. The designed screening machine, the feeding box in the feeding assembly is connected with the supporting assembly and guides the materials into the drum screen through the inclined bottom; the rotating rod in the processing piece cooperates with a plurality of blades to further crush the materials under the driving of the rotating motor, which is further beneficial to reducing the situation that the materials block the screen holes and improving the screening efficiency and quality of the materials.

[0035] 3. The designed screening machine, in the process of rotating the drum screen, a plurality of paddles are lapped on the surface of the drum screen, when the drum screen rotates, a resistance is formed, the setting of the poking piece can improve the stability of the drum screen in the rotating process and effectively poke the materials stuck in the screen holes of the drum screen, thereby avoiding the materials from being stuck and improving the screening efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is a structural schematic view of a first perspective in the embodiment of the application.

[0037] Figure 2 is a cross-sectional view of the drum screen in the embodiment of the application.

[0038] Figure 3 is a structural schematic view of the screening assembly and the driving assembly in the embodiment of the application.

[0039] Figure 4 is a structural schematic view of the screening assembly, the feeding assembly and the dust falling assembly in the embodiment of the application.

[0040] Figure 5 is a cross-sectional view of the feeding box in the embodiment of the application.

[0041] Figure 6 is Figure 5 is an enlarged view of A in FIG.

[0042] Figure 7 is a structural schematic view of a second perspective in the embodiment of the application.

[0043] Figure 8 is a cross-sectional view of the drying assembly in the embodiment of the application.

[0044] Explanation of reference signs: 1, support assembly; 2, screening assembly; 21, support piece; 211, support shaft; 212, support rod; 213, abutting ring; 22, drum screen; 221, connecting ring; 23, fixed ring; 231, ring groove; 24, poking piece; 241, poking rod; 242, poking piece; 25, discharging chute; 251, discharging port; 26, discharging piece; 261, discharging plate; 262, baffle; 3, driving assembly; 31, driving piece; 311, chain wheel; 312, driving motor; 313, chain; 32, guide piece; 321, guide seat; 322, guide wheel; 3221, protective pad; 33, protective shell; 4, feeding assembly; 41, feeding box; 411, connecting frame; 412, feeding port; 413, discharging port; 414, avoiding groove; 42, processing piece; 421, rotating rod; 422, blade; 423, rotary motor; 5, dust falling assembly; 51, first filter screen; 52, second filter screen; 53, dust falling piece; 531, water tank; 532, cross pipe; 533, water pipe; 534, atomizing nozzle; 535, water pump; 54, protective piece; 6, drying assembly; 61, closing plate; 62, heating plate. DETAILED DESCRIPTION

[0045] The following will be described in detail below with reference to the accompanying drawings. Figures 1-8 The present application is further described in detail.

[0046] The present application discloses a screening machine.

[0047] Reference will be made to Figure 1 A screening machine comprises a support assembly 1, a screening assembly 2, a driving assembly 3, a feeding assembly 4, a dust falling assembly 5 and a plurality of drying assemblies 6, the screening assembly 2, the driving assembly 3 and the feeding assembly 4 are arranged on the support assembly 1, the driving assembly 3 is connected with the screening assembly 2, the dust falling assembly 5 is arranged on the feeding assembly 4, and the feeding assembly 4 is arranged on the screening assembly 2.

[0048] Reference will be made to Figure 1 , Figure 2 and Figure 3In the embodiment, the support assembly 1 is a support frame, the screening assembly 2 is arranged on the top of the support frame, the screening assembly 2 comprises a support piece 21, a drum screen 22, two fixing rings 23, a stirring piece 24, a discharging groove 25 and a plurality of discharging pieces 26, the support piece 21 comprises a support shaft 211, a plurality of support rods 212 and a plurality of abutting rings 213, the support shaft 211 is a circular rod, the support shaft 211 is arranged obliquely, and the support shaft 211 is inclined from one side of the support frame to the side opposite to the one side of the support frame, and the lower end of the support shaft 211 is rotationally connected to the support frame, the plurality of support rods 212 are divided into a plurality of groups, in the embodiment, the plurality of support rods 212 are divided into four groups, the four groups of support rods 212 are distributed along the length direction of the support shaft 211, each group of support rods 212 comprises four support rods 212, and the four support rods 212 are uniformly distributed along the circumferential direction of the support shaft 211, the support rods 212 are arranged perpendicularly to the support shaft 211, and one end of each support rod 212 is welded to the support shaft 211, each group of support rods 212 corresponds to one abutting ring 213, the abutting ring 213 is coaxially arranged on the support shaft 211, and the end of the support rod 212 away from the support shaft 211 is welded to the inner wall of the abutting ring 213.

[0049] With reference to Figure 2 And Figure 3 The drum screen 22 is coaxially arranged on the support shaft 211, and the outer wall of the abutting ring 213 is attached to the inner wall of the drum screen 22, the drum screen 22 can be one or can be formed by splicing a plurality of screen cylinders, the plurality of screen cylinders are coaxially arranged, and adjacent two screen cylinders are locked by buckles, so that the screen cylinder is convenient to replace and maintain, and the drum screen 22 is convenient to replace, in the embodiment, the drum screen 22 is one, a plurality of connecting rings 221 are coaxially arranged on the outer wall of the drum screen 22 along the axial direction of the drum screen 22, the connecting rings 221 correspond to the abutting rings 213 in one-to-one manner, the connecting rings 221 and the abutting rings 213 are fixedly connected by screws, the drum screen 22 can be fixed, and the stability of the drum screen 22 during rotation is improved, the drum screen 22 rotates synchronously with the support shaft 211, the control panel or PBC plate of the old household appliance is crushed and injected into the drum screen 22 from the higher end of the drum screen 22, the drum screen 22 is used for screening the control panel or PBC plate of the old household appliance, and the two fixing rings 23 are located at one end of the drum screen 22, the fixing ring 23 is coaxially arranged on the drum screen 22, and the inner wall of the fixing ring 23 is flush with the inner wall of the drum screen 22, so that the material is convenient to enter and flow out, and the fixing ring 23 is fixedly connected to the drum screen 22 by screws.

[0050] With reference to Figure 3The actuating piece 24 comprises an actuating rod 241 and a plurality of actuating pieces 242. The actuating rod 241 is arranged obliquely, and is located outside the drum screen 22. The arrangement direction of the actuating rod 241 is consistent with the arrangement direction of the supporting shaft 211, and the actuating rod 241 is arranged in parallel with the supporting shaft 211. The two ends of the actuating rod 241 are fixedly connected to the supporting frame through screws. The plurality of actuating pieces 242 are located on the actuating rod 241 and are distributed along the length direction of the actuating rod 241. One end of each actuating piece 242 is welded to the actuating rod 241, and the other end is lapped on the outer wall of the drum screen 22 and can contact the actuating piece 242 during the rotation of the drum screen 22. On the one hand, the stability of the drum screen 22 during the rotation is improved. On the other hand, the material clamped in the screen hole of the drum screen 22 can be easily pushed down.

[0051] With reference to Figure 2 and Figure 3 The discharge chute 25 is located at the bottom of the drum screen 22. The longitudinal section of the discharge chute 25 is in the shape of a circular arc, and the discharge chute 25 is fitted with the bottom of the drum screen 22. In the embodiment, the number of the discharge pieces 26 is three. The three discharge pieces 26 are located on the side of the discharge chute 25 away from the drum screen 22, and are distributed along the arrangement direction of the discharge chute 25. The bottom of the discharge chute 25 is provided with a discharge opening 251. The discharge piece 26 is located at the discharge opening 251. The discharge piece 26 comprises a discharge plate 261 and two baffle plates 262. The discharge plate 261 is arranged obliquely, and the higher side of the discharge plate 261 is welded to the discharge chute 25. The discharge plate 261 is used to support the material screened by the drum screen 22, so as to slide along the surface of the discharge plate 261 to a designated container. The two baffle plates 262 are located on the two sides opposite to the discharge plate 261. The baffle plate 262 is arranged perpendicularly to the discharge plate 261, and is integrally arranged with the discharge plate 261. The discharge plate 261 and the two baffle plates 262 form a discharge gap, which is communicated with the discharge opening 251. The discharge gap formed by the discharge plate 261 close to the lower end of the drum screen 22 and the corresponding two baffle plates 262 is communicated with the inside of the drum screen 22, so as to facilitate the discharge and collection of the heavier material after passing through the drum screen 22.

[0052] With reference to Figure 1 and Figure 3The driving assembly 3 comprises a driving piece 31, a guide piece 32 and a protective shell 33. The driving piece 31 is located at the lower end of the drum screen 22. The driving piece 31 comprises two sprocket wheels 311, a driving motor 312 and a chain 313. One of the sprocket wheels 311 is coaxially welded with the supporting shaft 211. The shell of the driving motor 312 is fixedly connected to the supporting frame by screws. The output shaft of the driving motor 312 is coaxially fixed with the other sprocket wheel 311 by a key connection. The chain 313 is wound around the two sprocket wheels 311. The driving motor 312 drives the sprocket wheels 311 to rotate, thereby driving the supporting shaft 211 to rotate, and further driving the drum screen 22 to rotate. The guide piece 32 is located at the higher end of the drum screen 22. The guide piece 32 comprises two guide seats 321 and two guide wheels 322. The two guide seats 321 are fixedly connected to the supporting frame by screws and are located on the side close to the drum screen 22. The two guide seats 321 are distributed along the diameter direction of the fixed ring 23 located at the higher end of the drum screen 22. The guide wheels 322 correspond to the guide seats 321 in a one-to-one manner. The guide wheels 322 are rotatably connected to the guide seats 321. The outer wall of the fixed ring 23 located at the higher end of the drum screen 22 is provided with a ring groove 231 for the guide wheels 322 to extend into. The guide wheels 322 can guide the rotation of the drum screen 22, thereby facilitating the stability of the rotation of the drum screen 22. The side wall of the guide wheel 322 is fixedly bonded with a protective pad 3221 along the circumferential direction thereof, thereby avoiding abrasion between the guide wheel 322 and the fixed ring 23. The protective shell 33 is located close to the sprocket wheels 311 and is fixedly connected to the supporting frame by screws. The two sprocket wheels 311 are located in the protective shell 33, thereby protecting the sprocket wheels 311 and reducing the damage of the sprocket wheels 311, and further improving the durability of the device.

[0053] With reference to Figure 4 and Figure 5 The feeding assembly 4 is located at the higher end of the drum screen 22. The feeding assembly 4 comprises a feeding box 41 and a processing piece 42. The feeding box 41 is hollow. The side wall of the feeding box 41 is welded with a connecting frame 411. The connecting frame 411 is welded to the supporting frame. The top of the feeding box 41 is provided with a feeding opening 412. The bottom of the feeding box 41 is inclinedly arranged. The bottom of the feeding box 41 is provided with a discharge opening 413 on the lower side. The discharge opening 413 is communicated with the inside of the drum screen 22. The processing piece 42 comprises a rotating rod 421, a plurality of blades 422 and a rotating motor 423. The rotating rod 421 is vertically located in the feeding box 41. One end of the rotating rod 421 is rotatably connected to the top of the feeding box 41. The plurality of blades 422 are uniformly distributed on the outer wall of the rotating rod 421. The blades 422 are perpendicular to the rotating rod 421. The plurality of blades 422 can perform secondary crushing on the control panel and the PCB board. The shell of the rotating motor 423 is fixedly connected to the top of the feeding box 41 by screws. The output shaft of the rotating motor 423 is coaxially welded with the rotating rod 421. The rotating motor 423 can drive the rotating rod 421 to rotate.

[0054] With reference toFigure 4 、 Figure 5 and Figure 6 , the dust falling assembly 5 comprises a first filter screen 51, a second filter screen 52, a dust falling piece 53 and a protective piece 54, the bottom of the feeding box 41 is provided with an avoiding groove 414 close to the discharging opening 413, the avoiding groove 414 is communicated with the discharging opening 413, the first filter screen 51 and the second filter screen 52 are located in the avoiding groove 414, the first filter screen 51 and the second filter screen 52 are arranged along the inclined direction of the bottom of the feeding box 41, the first filter screen 51 and the second filter screen 52 are fixedly connected to the feeding box 41 by screws, and the first filter screen 51 and the second filter screen 52 are arranged in parallel, the first filter screen 51 is located above the second filter screen 52, the surface of the first filter screen 51 is flush with the bottom of the feeding box 41, the filter holes of the first filter screen 51 are larger than those of the second filter screen 52, a filtering gap is left between the first filter screen 51 and the second filter screen 52, and a water passing gap is left between the second filter screen 52 and the bottom of the avoiding groove 414.

[0055] Referring to Figure 4 、 Figure 5 and Figure 6 , the dust falling piece 53 comprises a water tank 531, a horizontal pipe 532, a water pipe 533, a plurality of atomizing nozzles 534 and a water pump 535, the water tank 531 is located at the bottom of the feeding box 41 and is fixedly connected to the support frame by screws, the water tank 531 is used for containing water, the top of the water tank 531 is communicated with the lower side of the bottom of the feeding box 41, so that water can enter the water tank 531, the horizontal pipe 532 is located in the feeding box 41 and close to the first filter screen 51, the horizontal pipe 532 is arranged in parallel with the first filter screen 51, the arrangement direction of the horizontal pipe 532 is perpendicular to the flow direction of the material, the horizontal pipe 532 is fixedly connected to the feeding box 41 by screws, one end of the water pipe 533 is provided in the water tank 531 and extends into the water tank 531, the other end of the water pipe 533 is communicated with the horizontal pipe 532 after penetrating through the feeding box 41, the plurality of atomizing nozzles 534 are uniformly and interval distributed on the horizontal pipe 532 along the length direction of the horizontal pipe 532, the atomizing nozzles 534 are communicated with the horizontal pipe 532, the nozzles of the atomizing nozzles 534 are directed to the side where the material flows, so as to spray the material located on the first filter screen 51, which can reduce the flying of dust in the material screening process, the sprayed water flows into the water tank 531 through the first filter screen 51 and the second filter screen 52, so as to be recycled, and the second filter screen 52 is used for filtering the impurities mixed in the water.

[0056] Referring to Figure 7 , in the embodiment, the protective piece 54 is a protective cover, the protective cover is located above the drum screen 22, the opening of the protective cover is directed to the side of the drum screen 22, the opening of the protective cover is communicated with the opening of the discharging groove 25, and the protective cover is detachably connected to the discharging groove 25 by screws. When the drum screen 22 rotates, the protective cover can reduce the splashing of liquid.

[0057] Referring to Figure 7 andFigure 8 In the embodiment, three drying assemblies 6 are arranged, and the drying assembly 6 corresponds to the discharging piece 26 one by one. The drying assembly 6 comprises a closing plate 61 and a heating plate 62. The closing plate 61 is arranged parallel to the discharging plate 261, and the closing plate 61 is located on the side of the baffle 262 away from the discharging plate 261. One baffle 262 is welded to each side of the closing plate 61. The heating plate 62 is located on the side of the closing plate 61 close to the discharging plate 261, and the heating plate 62 is arranged parallel to the discharging plate 261. The heating plate 62 is fixedly connected to the closing plate 61 by screws. The heating plate 62 can heat the discharging gap. When the material enters the discharging gap, the material can be dried.

[0058] The implementation principle of the screening machine in the embodiment is as follows: when the material needs to be screened, first, the feeding assembly 4 is started, the rotating motor 423 drives the rotating rod 421 to rotate, which can drive the blade 422 to rotate, and the crushed material is injected into the feeding box 41, and the material is secondarily crushed by the blade 422. At the same time, the water pump 535 in the dust removal assembly 5 is started, and the water in the water tank 531 is sprayed onto the material by the atomizing nozzle 534. Then, the sprayed material enters the drum screen 22. In this process, the driving assembly 3 is started, and the driving assembly 3 drives the drum screen 22 to rotate. In the process of rotating the drum screen 22, the material can be screened. The screened material falls through the discharging piece 26 into a designated container, and the screening of the material is completed.

[0059] When the crushed material enters the feeding box 41, the material is secondarily crushed by the blade 422. Then, the material flows to the bottom of the feeding box 41. The water pump 535 pumps the water in the water tank 531 into the horizontal pipe 532, which is sprayed out through the atomizing nozzle 534, so as to spray the material. The sprayed material slides through the first filter screen 51 into the drum screen 22. The sprayed water passes through the first filter screen 51 and the second filter screen 52 and is recycled in the water tank 531.

[0060] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, equivalent changes made on the basis of the structure, shape, and principle of the present application should be covered by the protection scope of the present application.

Claims

1. A screening machine, characterized in that: The system includes a support assembly (1), a screening assembly (2), and a drive assembly (3). The screening assembly (2) includes a drum screen (22), a feeding chute (25), and multiple feeding components (26) for material feeding. The drum screen (22) is inclined and rotatably connected to the support assembly (1). Material is injected into the drum screen (22) from the higher end. The drum screen (22) is used to screen the material. The feeding chute (25) is located at the bottom of the drum screen (22). The feeding trough (25) is connected to the support assembly (1). The top of the feeding trough (25) fits with the bottom of the drum screen (22). The bottom of the feeding trough (25) is provided with a feeding port (251). Multiple feeding components (26) are close to the feeding port (251). Multiple feeding components (26) are distributed at intervals along the setting direction of the feeding trough (25). The feeding component (26) located at the lower end of the drum screen (22) is used for feeding heavier materials through the drum screen (22). The drive assembly (3) is connected to the support assembly (1). The drive assembly (3) is connected to the drum screen (22) to drive the drum screen (22) to rotate. It also includes a feeding assembly (4), which is located at the higher end of the drum screen (22). The feeding assembly (4) includes a feeding box (41) and a processing component (42). The feeding box (41) is connected to the support assembly (1). The top of the feeding box (41) is provided with a feeding port (412) for feeding materials. The bottom of the feeding box (41) is inclined. The bottom of the feeding box (41) is provided with a discharge port (413) for materials to slide out on the lower side. The discharge port (413) is connected to the inside of the drum screen (22). The processing component (42) The device includes a rotating rod (421), multiple blades (422), and a rotary motor (423). The rotating rod (421) is located inside the feeding box (41), and one end of the rotating rod (421) is rotatably connected to the inner wall of the feeding box (41). The multiple blades (422) are evenly distributed on the outer wall of the rotating rod (421) and are used for secondary crushing of materials. The housing of the rotary motor (423) is fixed to the feeding box (41), and the output shaft of the rotary motor (423) is coaxially fixed with the rotating rod (421). It also includes a dust suppression assembly (5), which includes a dust suppression component (53). The dust suppression component (53) includes a water tank (531), a horizontal pipe (532), a water pipe (533), multiple atomizing nozzles (534), and a water pump (535). The water tank (531) is fixed to the support assembly (1) and is used to hold water. The horizontal pipe (532) is located inside the feeding box (41) and is close to the bottom of the feeding box (41). The water pipe (533) is fixed to the feeding box (41), one end of the water pipe (533) passes through the water tank (531), and the other end passes through the feeding box (41) and is connected to the horizontal pipe (532). A plurality of atomizing nozzles (534) are evenly spaced along the length of the horizontal pipe (532). The atomizing nozzles (534) are connected to the horizontal pipe (532), and the nozzles of the atomizing nozzles (534) face the material flow side. The water pump (535) is fixed to the water pipe (533). The dust suppression assembly (5) further includes a first filter screen (51). A clearance groove (414) is provided at the bottom of the feeding box (41) near the discharge port (413). The clearance groove (414) is connected to the discharge port (413). The first filter screen (51) is located in the clearance groove (414). The first filter screen (51) is arranged along the inclined direction of the bottom of the feeding box (41). The first filter screen (51) is fixed to the feeding box (41). The surface of the first filter screen (51) is flush with the bottom of the feeding box (41). The water tank (531) is located at the bottom of the feeding box (41). The top of the water tank (531) is connected to the lower side of the bottom of the feeding box (41). The dust suppression assembly (5) further includes a second filter screen (52), which is located in the clearance groove (414). The second filter screen (52) is arranged along the inclined direction of the bottom of the feeding box (41) and is fixed to the feeding box (41). The first filter screen (51) and the second filter screen (52) are arranged in parallel. The first filter screen (51) is located above the second filter screen (52). The filter holes of the first filter screen (51) are larger than the filter holes of the second filter screen (52). A filtration gap is left between the first filter screen (51) and the second filter screen (52). A water passage gap is left between the second filter screen (52) and the bottom of the clearance groove (414). The feeding component (26) includes a feeding plate (261) and two baffles (262). The feeding plate (261) is inclined and the higher side of the feeding plate (261) is fixed to the feeding trough (25). The two baffles (262) are fixed on opposite sides of the feeding plate (261). The baffles (262) are perpendicular to the feeding plate (261). The feeding plate (261) and the two baffles (262) form a feeding gap, which is connected to the feeding port (251). The feeding gap formed by the feeding component (26) near the lower end of the drum screen (22) is connected to the inside of the drum screen (22). The screening machine also includes multiple drying components (6), each of which corresponds to the feeding component (26). Each drying component (6) includes a closing plate (61) and a heating plate (62). The closing plate (61) is arranged parallel to the feeding plate (261) and fixed to the side of the baffle (262) away from the feeding plate (261). The heating plate (62) is located on the side of the closing plate (61) close to the feeding plate (261) and fixed to the closing plate (61). The heating plate (62) is used to heat the feeding gap. The dust suppression component (5) also includes a protective element (54), which is a protective cover. The protective cover is located above the drum screen (22), with the opening of the protective cover facing the drum screen (22). The opening of the protective cover is connected to the opening of the feeding trough (25), and the protective cover is detachably connected to the feeding trough (25).

2. The screening machine according to claim 1, characterized in that: The screening assembly (2) further includes a support member (21), which includes a support shaft (211), multiple support rods (212), and multiple abutment rings (213). The support shaft (211) is coaxially disposed within the drum screen (22), and the lower end of the support shaft (211) is connected to the support assembly (1). The multiple support rods (212) are evenly divided into multiple groups, and the multiple groups of support rods (212) are spaced apart along the length direction of the support shaft (211). Each group of support rods (212) contains four support rods (212), and the four support rods (212) are evenly distributed circumferentially along the support shaft (211). The support rod (212) is perpendicular to the support shaft (211). One end of the support rod (212) is fixed to the support shaft (211). Each set of support rods (212) corresponds to one abutment ring (213). The end of the support rod (212) away from the support shaft (211) is fixed to the inner wall of the abutment ring (213). The outer wall of the abutment ring (213) is in contact with the inner wall of the drum screen (22). The outer wall of the drum screen (22) is coaxially provided with multiple connecting rings (221) along its axial direction. The connecting rings (221) correspond one-to-one with the abutment rings (213). The connecting rings (221) are connected to the abutment rings (213). The drive assembly (3) is connected to the support shaft (211) to drive the support shaft (211) to rotate.

3. A screening machine according to claim 2, characterized in that: The screening assembly (2) further includes an actuating component (24), which includes an actuating rod (241) and multiple paddles (242). The actuating rod (241) is located outside the drum screen (22), and the setting direction of the actuating rod (241) is consistent with the setting direction of the support shaft (211). Both ends of the actuating rod (241) are connected to the support assembly (1). The multiple paddles (242) are fixed on the actuating rod (241), and the multiple paddles (242) are distributed at intervals along the length direction of the actuating rod (241). The end of the paddle (242) away from the actuating rod (241) overlaps the outer wall of the drum screen (22).

4. A screening machine according to claim 2, characterized in that: The screening assembly (2) also includes two fixing rings (23), each of which is coaxially fixed to one end of the drum screen (22), and the inner wall of the fixing ring (23) is flush with the inner wall of the drum screen (22); The drive assembly (3) includes a drive member (31) and a guide member (32). The drive member (31) is connected to the support shaft (211). The guide member (32) is located at the higher end of the drum screen (22). The guide member (32) includes two guide seats (321) and two guide wheels (322). The two guide seats (321) are fixed to the support assembly (1) on the side close to the drum screen (22). The two guide seats (321) are distributed along the diameter direction of the fixed ring (23) located at the higher end of the drum screen (22). The guide wheels (322) correspond one-to-one with the guide seats (321). The guide wheels (322) are rotatably connected to the guide seats (321). The outer wall of the fixed ring (23) located at the higher end of the drum screen (22) is provided with an annular groove (231) for the guide wheels (322) to extend into.

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