A medical waste crushing and screening integrated device with a needle

Abstract

The application discloses a kind of crushing and screening integrated equipment of medical waste with needle, including crushing module, crushing module, conveying and sorting module, crushing module includes crushing upper seat, crushing lower seat and main cone, the bottom of crushing upper seat is inwardly provided with crushing working cavity, main cone is driven by crushing drive source and eccentric rotation is intermittently changed the width of crushing passage, and plastic particles are extruded and impacted to be crushed, needle mixed on plastic particles falls off, conveying and sorting module includes vibration conveying module and sorting module, vibration conveying module drives plastic particles, metal strip object synchronous forward vibration translation, so that plastic particles fall into plastic output section through particle passage, and strip-shaped metal passes through needle discharge hole from the lower part of sorting seat and is discharged.Compared with prior art, the beneficial effects are as follows: the main cone is eccentrically rotated to perform secondary crushing on the plastic particles, the sorting module is designed according to the outer contour characteristics of the material, and the technical effect of sorting during the forward conveying of the material is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical waste crushing and screening equipment, in particular to a medical waste crushing and screening integrated equipment with a needle. BACKGROUND

[0002] Globally, medical syringes are one of the most widely used medical devices. According to statistics, the number of syringes used each year is as high as tens of billions or even hundreds of billions (according to WHO data), generating a huge amount of medical waste, which has multiple hazards after being discarded:

[0003] Bio-safety risk: used syringes belong to infectious and injurious medical waste (according to WHO and national standard classification). The residual blood and body fluid may carry pathogens (such as HBV, HCV, HIV, etc.), posing a serious bio-safety risk.

[0004] Physical injury risk: the needle part is classified as injurious waste, which is extremely easy to cause needle stick injuries to medical staff, waste disposal personnel and even the public, leading to potential occupational exposure and disease transmission.

[0005] Environmental pollution risk: syringes are mainly composed of plastic (such as polypropylene PP and polyethylene PE) and metal (stainless steel needle). Traditional mixed landfill or incineration treatment not only occupies land resources, and improper incineration may produce harmful gases such as dioxin, and the plastic components are also difficult to degrade, causing long-term environmental pollution. Resource recycling is an ideal way to solve environmental pressure and resource waste, but the prerequisite is to ensure safe and complete harmless treatment and effective separation of different materials.

[0006] The current medical waste syringe treatment equipment has the following key technical bottlenecks in the crushing and sorting link:

[0007] 1. Incomplete crushing of the needle joint part leads to low sorting accuracy

[0008] 1.1. Structural particularity: the needle joint part is usually composed of the end of the metal needle and the end of the plastic needle tube by injection molding or UV glue structure, forming a metal-plastic interlocking structure.

[0009] 1.2. Defects of existing equipment: usually, a crusher is used to crush the waste syringes without distinction, and then directly sorted. The crushed products still maintain the embedded state (metal parts are wrapped in plastic or physically engaged), which will lead to the misclassification of such composite fragments in the sorting link (metal sorting system misjudges as plastic, and vice versa), resulting in more than 15% of metal inclusions in plastic recycling materials and more than 20% of plastic adhesion in metal recycling materials, which seriously deviates from the resource purity requirements.

[0010] 2. The sorting system structure is redundant and inefficient

[0011] 2.1. The existing equipment generally adopts electromagnetic sorting or eddy current method for sorting, which has principle limitations:

[0012] Non-ferromagnetic metal sorting blind area: 30% of medical needles are austenitic stainless steel (non-magnetic), and the eddy current sorting has low efficiency for small particles and fragments (due to insufficient eddy current force);

[0013] Metal-plastic composite fragments are shielded due to conductivity / magnetism, and the eddy current field cannot be effectively induced;

[0014] Composite material misidentification: the plastic fragments wrapped with metal are identified as "non-metal" by the eddy current sorting machine, and the plastic containing iron chips is identified as "metal" by the magnetic sorting machine, and the sorting accuracy: for pure metal / pure plastic >90%, but for needle joint fragment <65%.

[0015] In summary, the existing sorting technology cannot effectively and accurately separate plastic particles and metal needle fragments (and their joint fragments) in the mixed crushing products, and there is a serious mutual inclusion problem, which greatly reduces the value of recyclables and even cannot be utilized, hindering the realization of closed-loop recycling. SUMMARY

[0016] The technical problem to be solved by the present application is to provide a crushing and screening integrated equipment for medical waste with needles.

[0017] To achieve the above purpose, the present application discloses a crushing and screening integrated equipment for medical waste with needles, comprising:

[0018] A crushing module for crushing medical waste with needles into a mixture with plastic and metal strips.

[0019] A crushing module, which comprises a crushing upper seat, a crushing lower seat and a main cone, the crushing upper seat and the crushing lower seat are fixedly arranged one above the other, the bottom of the crushing upper seat is provided with a crushing working cavity upward, the main cone is eccentrically arranged in the crushing lower seat, the inner wall of the crushing working cavity and the inner wall of the main cone form a crushing channel, the crushing channel is used for inputting the mixture from the crushing module, the main cone is driven by a crushing driving source to eccentrically rotate intermittently to change the width of the crushing channel, and the plastic particles are crushed by extrusion and impact, and the needles mixed on the plastic particles are dropped, the bottom of the crushing lower seat is provided with a mixture outlet for discharging the material output from the end of the crushing channel.

[0020] The conveying and sorting module comprises a vibrating conveying module and a sorting module, the vibrating conveying module is sequentially provided with a feeding section, a first screening section, a second screening section and a plastic output section along its conveying direction, the bottom of the first screening section is provided with a needle discharge part, and the bottom of the second screening section is provided with a needle hole.

[0021] The sorting module comprises a sorting seat, the top surface of the sorting seat is provided with a particle channel, the sorting seat is fixedly arranged above the needle hole, and the bottom of the sorting seat and the bottom in the vibrating conveying module form a needle channel, the feeding section is used for receiving the mixed materials discharged from the mixed material outlet, the mixed materials are driven to move forward by the vibration of the vibrating conveying module, the mixed materials pass through the first screening section, the metal strips in the mixed materials are screened out through the needle discharge part and discharged, the metal strips in the mixed materials pass through the second screening section, the metal strips are discharged from the needle hole through the needle channel, and the plastic particles are turned up to the particle channel and move forward until falling into the plastic output section under the action of the vibration.

[0022] Further, the inner wall of the crushing working cavity is protrudingly provided with a plurality of vertical crushing strips, and the plurality of vertical crushing strips are arranged in an annular array.

[0023] The outer wall of the main cone is protrudingly provided with a plurality of annular crushing strips, and the plurality of annular crushing strips are arranged in a spaced manner from top to bottom along the vertical direction of the main cone.

[0024] The diameters of the plurality of annular crushing strips gradually increase from top to bottom, and the width of the crushing channel gradually decreases from top to bottom.

[0025] Further, the spacing distance between the two adjacent vertical crushing strips is less than the size of the crushed plastic particles, and the spacing distance between the two adjacent annular crushing strips is less than the size of the crushed plastic particles.

[0026] Further, the crushing working cavity is in a conical shape.

[0027] The bottom in the crushing lower seat is protrudingly arranged upwardly, the top of the mounting part is arranged downwardly, the bottom end of the main cone is rotationally arranged in the accommodating cavity, and the crushing driving source is fixedly arranged on the outer side of the crushing lower seat.

[0028] Further, the crushing module further comprises a primary screening seat, the primary screening seat is fixedly arranged on the top of the crushing upper seat, the top of the primary screening seat is arranged downwardly, the bottom of the primary screening cavity is arranged downwardly, the material passing part is in communication with the crushing channel, and the material dispersing seat is fixedly arranged above the material passing part.

[0029] The inner wall of the preliminary screening cavity is vertically provided with a plurality of first strip-shaped holes, and the plurality of first strip-shaped holes are arranged in an annular array and used for discharging metal strips from the preliminary screening cavity.

[0030] A needle discharging cavity is arranged below the first strip-shaped holes, and the outer wall of the preliminary screening seat is provided with a needle discharging port in communication with the needle discharging cavity.

[0031] The bottom of the needle discharging cavity is obliquely arranged.

[0032] Further, a discharging block is arranged between the two sides above the mixed material outlet, the discharging block is arranged in an arc around the main cone, and is used for guiding the mixed materials discharged from the crushing channel to the mixed material outlet.

[0033] Further, a plastic particle outlet is arranged at the bottom of the plastic output section in the vibration conveying module.

[0034] Further, the sorting module further comprises a plurality of correction strips, the plurality of correction strips are arranged at the bottom in the second screening section along the width direction of the vibration conveying module, and are located at the head end of the needle discharging channel.

[0035] The head end of the needle discharging channel is provided with a baffle, a plurality of guide holes are arranged on the baffle along the width direction of the vibration conveying module, and the correction strip is located between two adjacent guide holes.

[0036] Further, the top surface of the left side of the sorting seat is obliquely arranged, and a plurality of buffer accommodation positions are arranged on the inclined surface of the sorting seat and are arranged along the length direction of the vibration conveying module.

[0037] Further, a plurality of needle discharging portions are arranged along the conveying direction of the vibration conveying module, and two adjacent groups of needle discharging portions are arranged in a staggered manner.

[0038] The needle discharging portion comprises a plurality of second strip-shaped holes, and the plurality of second strip-shaped holes are arranged in an interval along the width direction of the vibration conveying module, and the second strip-shaped holes are used for screening and discharging metal strips.

[0039] Compared with the prior art, the beneficial effects of the present application are that:

[0040] 1. The first strip-shaped hole, the second strip-shaped hole and the sorting module are arranged to realize multiple sorting of the metal strips, so as to ensure the final sorting effect;

[0041] 2. The eccentric rotation of the mechanical structure of the crushing module is combined with the vertical crushing strip and the annular crushing strip to crush the needle head combination part to realize the advantages of accurate sorting effect and difficulty in mixing in the subsequent sorting process.

[0042] 3、The conveying and sorting module adopts a vibrating conveyor as the driving form of material flow, and the sorting module is designed according to the outer contour characteristics of plastic particles and metal strips, thereby realizing the technical effect of sorting during the forward conveying of the materials. Since the sorting module is designed according to the outer contour characteristics of plastic particles and metal strips, it can realize more efficient sorting efficiency and more accurate sorting effect. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 It is a front view of the overall structure of the embodiment;

[0044] Figure 2 It is a sectional view of the crushing module of the embodiment;

[0045] Figure 3 It is a perspective view of the primary screening seat, the crushing upper seat, and the crushing lower seat when they are fixed to each other;

[0046] Figure 4 It is a perspective view of the crushing upper seat of the embodiment;

[0047] Figure 5 It is a partial enlarged view of part A; Figure 2

[0048] It is a partial enlarged view of part D. Figure 6

[0049] It is a perspective view of the vibrating conveying module when the cover is removed; Figure 7

[0050] It is a schematic view of the overall structure of the vibrating conveying module of the embodiment; Figure 8 Figure 6 It is a partial enlarged view of part B;

[0051] Figure 9 It is a sectional view of the sorting module when it is arranged in the vibrating conveying module;

[0052] Figure 10 It is a partial enlarged view of part C; Figure 9

[0053] It is a partial enlarged view of part D. Figure 11 DETAILED DESCRIPTION Figure 6 To make the purpose, technical scheme, and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings.

[0054] To make the purpose, technical scheme, and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings. Figures 1-11 Reference is made to

[0055] Figure 1 ​​​As shown, a medical waste with needle crushing and screening integrated equipment, including crushing module 1, crushing module 2 and conveying and sorting module 3. The crushing module 1 of the embodiment is a common double-shaft crusher in the art, which is used to crush the plastic part of the waste needle into plastic particles, change the length of the metal part to meet the requirements of recycling, and further control the particle size of the output by adjusting the pitch of the cutter in the crushing module 1.

[0056] Recombine Figure 2 、 Figure 3 As shown, the crushing module 2 includes a primary screen seat 21, a crushing upper seat 22, a crushing lower seat 23, a main cone 24 and a crushing drive source 25. The upper part of the feeding end of the conveying and sorting module 3 is fixedly provided with a crushing support frame 4.

[0057] The crushing lower seat 23 is fixedly provided on the crushing support frame 4, the bottom of the crushing upper seat 22 is fixedly provided on the top of the crushing lower seat 23, the bottom of the primary screen seat 21 is fixedly provided on the top of the crushing upper seat 22, the main cone 24 is rotatably provided in the crushing lower seat 23, and the crushing drive source 25 is fixedly provided on the crushing support frame 4 for driving the main cone 24 to rotate. The crushing module 1 is fixedly connected with the crushing support frame 4 through the rack, and is located above the crushing primary screen seat 21.

[0058] The top of the primary screen seat 21 is provided with a primary screen cavity 211 downward, and the bottom of the primary screen cavity 211 is provided with a material passing part 212 downward, which is in communication with the bottom of the primary screen seat 21. The primary screen cavity 211 in the vertical section is in the shape of an inverted trapezoid, so as to guide the material in the primary screen cavity 211 to the material passing part 212.

[0059] The inner wall of the primary screen cavity 211 is vertically provided with a plurality of first strip-shaped holes 213, and the plurality of first strip-shaped holes 213 are arranged in an annular array. The two side edges above the first strip-shaped hole 213 are chamfered to guide the metal strip-shaped object falling into the first strip-shaped hole 213.

[0060] The lower part of the first strip-shaped hole 213 is provided with a needle discharging cavity 214, and the outer wall of the primary screen seat 21 is provided with a needle discharging port 215 in communication with the needle discharging cavity 214. The outer side of the needle discharging port 215 is provided with a first metal collector 5, and the outer wall of the primary screen seat 21 is fixedly provided with a guide plate for guiding the metal strip-shaped object output from the needle discharging port 215 into the first metal collector 5. Further, the bottom of the needle discharging cavity 214 is inclined to facilitate the metal strip-shaped object inside to be discharged from the needle discharging port 215 to the first metal collector 5.

[0061] The upper part of the material passing part 212 is fixedly provided with a material dispersing seat 216, which is in the shape of an isosceles trapezoid in the vertical section, and the material dispersing seat 216 disperses and guides the material output from the crushing module 1 to the inner wall of the primary screen cavity 211.

[0062] The outer contour size of the material dispersion seat 216 is smaller than the size of the primary screening cavity, thereby ensuring that the material can flow from the material dispersion seat 216 to the inner wall of the primary screening cavity.

[0063] Referring to Figure 2 As shown, the bottom of the crushing upper seat 22 is inwardly provided with a crushing working cavity 221. In this embodiment, the crushing working cavity 221 is provided in a conical shape, and the smaller-diameter end of the crushing working cavity 221 is upwardly provided opposite the upper and lower openings of the material passing portion 212. The inner top of the crushing working cavity 221 is in communication with the material passing portion 212 to allow the material to enter the crushing working cavity 221.

[0064] The main cone 24 is driven to rotate by the crushing driving source 25 and is arranged in the crushing working cavity 221. The smaller-diameter end of the main cone 24 is upwardly arranged adjacent to the lower opening of the material discharging portion. The inner wall of the crushing working cavity 221 and the outer wall of the main cone 24 form a crushing passage 26. In this embodiment, the taper of the main cone 24 is greater than the taper of the crushing working cavity 221, so that the width of the crushing passage 26 decreases from top to bottom.

[0065] The crushing driving source 25 includes a power shaft 251, a transmission shaft 252, and a power module 253. The bottom of the crushing lower seat 23 is upwardly and protrudingly provided with a mounting portion 231, and the top of the mounting portion 231 is downwardly provided with a receiving cavity 232.

[0066] The power shaft 251 is rotationally arranged in the receiving cavity, and the power shaft 251 is concentrically arranged with the material passing portion 212. Specifically, the bottom end of the power shaft 251 is rotationally connected to the bottom of the receiving cavity 232 through a bearing. The outer periphery of the power shaft 251 is protrudingly provided with a bevel gear portion 251-1.

[0067] The power module 253 is fixedly arranged on the crushing support frame 4. One end of the transmission shaft 252 is fixedly connected to the output end of the power module 253. The other end of the transmission shaft 252 penetrates through the crushing lower seat 23 to the receiving cavity 232, and is located below the bevel gear portion 251-1. The outer periphery of the transmission shaft 252 is rotationally connected to the crushing lower seat 23. The end portion of the other end of the transmission shaft 252 is fixedly provided with a bevel gear 252-1, and the bevel gear 252-1 is engaged with the bevel gear portion 251-1.

[0068] In this embodiment, the larger-diameter end of the main cone 24 serves as the bottom. The bottom of the main cone 24 is provided with a connecting hole, and the center of the connecting hole is eccentrically arranged with the center of the main cone 24. The main cone 24 is eccentrically connected to the top end of the power shaft 251 through the connecting hole.

[0069] In this embodiment, the diameter of the bottom of the main cone 24 is greater than the diameter of the mounting portion 231, thereby ensuring that the material output from the crushing passage 26 falls to the bottom of the crushing lower seat 23.

[0070] Reference Figure 4 As shown, the inner wall of the crushing working chamber 221 is further provided with a plurality of vertical crushing bars 221-1 protruding from it, and the plurality of vertical crushing bars 221-1 are arranged in a circular array. The spacing between two adjacent vertical crushing bars 221-1 is smaller than the size of the crushed plastic particles;

[0071] Combined Figure 5 As shown, the outer wall of the main cone 24 is provided with several annular crushing strips 241. The annular crushing strips 241 are arranged at intervals from top to bottom along the vertical direction of the main cone 24, and their diameter gradually increases, thereby making the width of the crushing channel 26 decrease from top to bottom. They cooperate with the eccentrically rotating main cone 24 to crush the plastic particles, further reducing the size of the plastic particles. At the same time, the junction of the needle and the needle tube is crushed to improve the sorting effect.

[0072] In this embodiment, the distance between two adjacent annular crushing bars 241 is smaller than the size of the crushed plastic particles, so as to ensure that the crushing force of the annular crushing bars 241 and the vertical crushing bars 221-1 acts on the plastic particles.

[0073] Reference Figure 2 As shown, a mixed material outlet 233 is provided at the bottom of the crushing lower seat 23, and the mixed material outlet 233 is connected to the bottom of the crushing lower seat 23. A discharge block 234 is provided between the two sides above the mixed material outlet 233. The discharge block 234 is arranged in an arc around the outer wall of the mounting part 231. The discharge block 234 is used to receive the mixed material output from the crushing channel 26 and guide it to the mixed material outlet 233 for discharge into the conveying and sorting module 3.

[0074] In this embodiment, the diameter of the accommodating cavity 232 is larger than the diameter of the power shaft 251, so that the power shaft 251 can be installed in the accommodating cavity 232.

[0075] In this embodiment, the power module 253 is driven by a motor and a reducer.

[0076] Reference Figure 6 , Figure 7 As shown, the conveying and sorting module 3 includes a vibrating conveying module 31 and a sorting module 32. In this embodiment, the vibrating conveying module 31 is preferably a vibrating conveyor. The vibrating conveying module 31 has, sequentially arranged along its vibrating conveying direction, a feeding section 311, a first screening section 312, a second screening section 313, and a plastic output section 314. A feeding port 315 is located at the top of the vibrating conveying module 31, and the feeding port 315 is vertically opposite to the feeding section 311. The mixed material outlet 233 is located above the feeding port 315. The sorting module 32 is located in the second screening section 313.

[0077] The bottom of the first screening section 312 in the vibration conveying module 31 is provided with a plurality of needle sections 316, which are arranged at intervals along the length direction of the vibration conveying module 31, and adjacent two groups of needle sections 316 are arranged staggered.

[0078] Further combined Figure 1 , Figure 8 , Figure 9 As shown in the figure, the needle section 316 is provided with a plurality of second strip-shaped holes 316-1, which are arranged at intervals along the width direction of the vibration conveying module 31, and the top of the second strip-shaped hole 316-1 in the length direction is chamfered to serve as a guide. The second metal collector 6 is arranged below the second strip-shaped hole 316-1.

[0079] The length of the second strip-shaped hole 316-1 in the embodiment is greater than the length of the metal strip, and the width thereof is equal to the width of the metal strip, so as to ensure the passing of the metal strip while preventing the plastic particles from falling through.

[0080] The bottom of the second screening section 313 in the vibration conveying module 31 is provided with a needle passage hole 317. The third metal collector 7 is arranged below the needle passage hole 317.

[0081] The sorting module 32 includes a sorting seat 321 and a plurality of correction strips 322. The sorting seat 321 is fixedly arranged above the needle passage hole 317, and the top surface of the sorting seat 321 serves as a particle passage 321-1. The particle passage 321-1 is in communication with the second screening section 313 and the plastic output section 314 respectively on both sides.

[0082] Referring to Figure 10 As shown in the figure, the bottom of the sorting seat 321 and the bottom of the vibration conveying module 31 form a needle passage 323.

[0083] Referring to Figure 11 As shown in the figure, the plurality of correction strips 322 are fixedly arranged at the bottom of the vibration conveying module 31 in the second screening section 313, and are located between the first end of the needle passage 323 and the needle section 316. Specifically, the plurality of correction strips 322 are arranged at intervals along the width direction of the vibration conveying module 31.

[0084] Further, in order to ensure the order of the needle and the sorting in place, the first end of the needle passage 323 is provided with a baffle 324. The front and rear outer sides of the baffle 324 are fixedly connected with the front and rear sides in the vibration conveying module 31 respectively, and the top and bottom of the baffle 324 are fixedly connected with the bottom of the sorting seat 321 and the bottom in the vibration conveying module 31 respectively.

[0085] The baffle plate 324 is provided with a plurality of guide hole positions 324-1 along the width direction of the vibration conveying module 31, and the guide hole positions 324-1 are in communication with the bottom of the baffle plate 324. The size of the guide hole position 324-1 corresponds to the width of the metal strip.

[0086] The correction strip 322 is located between two adjacent guide hole positions 324-1. In use, the metal strip output from the strip-shaped material output end gradually adjusts the shape under the action of the correction strip 322 to correspond to the guide hole position 324-1, and then passes through the guide hole position 324-1 into the pin arranging channel 323 and is discharged from the pin arranging hole 317.

[0087] Further, the width of the correction strip 322 gradually increases along the flow direction of the material.

[0088] Further, the top surface of the sorting seat 321 adjacent to the first screening section (312) is inclinedly arranged, and the lower end thereof is connected to the top of the baffle plate 324.

[0089] Referring to Figure 10 and Figure 11 , the guide inclined surface is provided with a plurality of buffer accommodation positions 321-2, and the buffer accommodation positions 321-2 are arranged along the length direction of the vibration conveying module 31. In this embodiment, the buffer accommodation positions 321-2 make the plastic particles orderly move from the guide inclined surface to the particle channel 321-1.

[0090] Referring to Figure 6 , the bottom of the plastic output section 314 in the vibration conveying module 31 is provided with a plastic particle outlet 318, and a plastic collector 8 is placed below the plastic particle outlet for receiving the material output from the plastic particle outlet 318.

[0091] Referring to Figures 1-11 , the working process of the device is as follows:

[0092] S1, the mixed material (metal strip and plastic particle) output from the crushing module 1 falls on the material dispersion seat 216, and the mixed material is guided by the dispersion seat and freely falls on the inner wall of the primary screening cavity 211. At this time, the metal strip is discharged from the first strip-shaped hole 213 into the pin arranging cavity 214 and is collected in the first metal collector 5 through the pin arranging hole 215;

[0093] S2, the metal strip that does not fall into the first strip-shaped hole 213 and the plastic particle enter the crushing channel 26 through the material part 212. Since the width of the metal strip is much smaller than the width of the crushing channel 26, the metal strip can directly fall on the discharging block 234 and is output from the mixed material outlet 233 to the conveying and sorting module 3;

[0094] S3, when the plastic particles enter the crushing channel 26, the crushing drive source 25 drives the transmission shaft 252 to rotate, and through the bevel gear 252-1 meshing with the transmission helical gear part 251-1, the power shaft 251 is rotated, and the main cone 24 is eccentrically rotated while the power shaft 251 is rotating, the main cone 24 intermittently changes the width of the crushing channel 26, at the same time, the vertical crushing strip 221-1 cooperates with the annular crushing strip 241 to realize extrusion and impact on the plastic particles in the crushing channel 26 to crush the needle joint, and the separated metal strip and plastic particles are discharged from the crushing channel 26 and output from the mixed material outlet 233 to the conveying and sorting module 3.

[0095] S4, the material output from the mixed material outlet 233 falls into the feeding section 311 through the feeding port 315, and the material in the feeding section 311 is moved forward once through the first screening section 312, the second screening section 313 and the plastic output section 314 under the vibration of the vibration conveying module 31.

[0096] S5, when the mixed material passes through the first screening section 312, the metal strip in the mixed material corresponding to the arrangement of the needle removal part 316 falls into the second strip-shaped hole 316-1 and is collected in the second metal collector 6, and the remaining mixed material continues to move forward.

[0097] S6, the metal strip in the disordered form is gradually corrected to be horizontally arranged during the movement forward through the correction strip 322, and in this embodiment, the correction strip 322 is arranged between two adjacent guide hole positions 324-1, so that the correction strip 322 realizes the correction function while guiding the metal strip to the guide hole position 324-1 to enter the needle removal channel 323 and is discharged from the needle removal through hole 317 and collected in the third metal collector 7.

[0098] S7, the plastic particles of the mixed material are lifted to the guide slope of the sorting seat 321 under the action of the vibration conveying module 31, and sequentially pass through the buffer accommodation position 321-2 and pass through the particle channel 321-1 to fall into the plastic output section 314 and move forward to the plastic particle outlet 318 and be collected in the plastic collector 8.

[0099] In actual work, the length of the crushed metal strip is short and difficult to align the conveying form, therefore, the device realizes multiple sorting of the metal strip through the first strip-shaped hole 213, the second strip-shaped hole 316-1 and the sorting module 32, to ensure the final sorting effect;

[0100] The device realizes extrusion and crushing of the needle joint part through the crushing module 2 to separate it, which ensures that the subsequent sorting process realizes accurate sorting effect and is not easy to be mixed.

[0101] The conveying and sorting module 3 of the device adopts a vibrating conveyor as a driving form of material flow, and designs a sorting module 32 according to the contour characteristics of plastic particles and metal strips, thereby realizing the technical effect of sorting during the forward conveying of the materials. Since the sorting module 32 is designed according to the contour characteristics of plastic particles and metal strips, it can realize more efficient sorting efficiency and more accurate sorting effect.

[0102] Of course, the above-mentioned embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any modification made according to the spirit and essence of the main technical solution of the present application should be covered within the protection scope of the present application.

Claims

1. A medical waste pulverizing and screening integrated apparatus with a needle, characterized by, The application relates to a medical waste treatment device, which comprises the following parts: a crushing module (1) for crushing medical waste with needles into a mixture with plastic and metal strips; a crushing module (2) comprising a crushing upper seat (22), a crushing lower seat (23) and a main cone (24), the crushing upper seat (22) and the crushing lower seat (23) are fixedly arranged one above the other, the bottom of the crushing upper seat (22) is provided with a crushing working cavity (221) upwards, the main cone (24) is eccentrically arranged in the crushing lower seat (23), a crushing channel (26) is formed between the inner wall of the crushing working cavity (221) and the inner wall of the main cone (24), the crushing channel (26) is used for inputting the mixture material output from the crushing module (1), the main cone (24) is driven by a crushing driving source (25) to eccentrically rotate intermittently, the width of the crushing channel (26) is changed, and the plastic particles are crushed and extruded and impacted, so that the needles mixed on the plastic particles are separated, the bottom of the crushing lower seat (23) is provided with a mixture material outlet (233) for discharging the material output from the end of the crushing channel (26); a conveying and sorting module (3) comprising a vibrating conveying module (31) and a sorting module (32), the vibrating conveying module (31) is sequentially provided with a feeding section (311), a first screening section (312), a second screening section (313) and a plastic output section (314) along the conveying direction, the bottom of the first screening section (312) is provided with a needle discharging part (316), and the bottom of the second screening section (313) is provided with a needle discharging through hole (317); the sorting module (32) comprises a sorting seat (321), the top surface of the sorting seat (321) is provided with a particle channel (321-1), the sorting seat (321) is fixedly arranged above the needle discharging through hole (317), and a needle discharging channel (323) is formed between the bottom of the sorting seat (321) and the bottom of the vibrating conveying module (31); the feeding section (311) is used for receiving the mixture material discharged from the mixture material outlet (233), the mixture material is driven by the vibration of the vibrating conveying module (31) to move forward, the metal strips are screened out through the needle discharging part (316) when the mixture material passes through the first screening section (312) and are discharged, the metal strips in the mixture are discharged from the needle discharging through hole (317) through the needle discharging channel (323) when the mixture material passes through the second screening section (313), and the plastic particles are turned upwards to the particle channel (321-1) and move forward until falling into the plastic output section (314) under the action of vibration and impacting the side edges of the sorting seat (321); the sorting module (32) further comprises a plurality of correction strips (322), the plurality of correction strips (322) are arranged at the bottom of the second screening section (313) along the width direction of the vibrating conveying module (31) and are located at the head end of the needle discharging channel (323). The front end of the row needle channel (323) is provided with a baffle (324), a plurality of guide hole positions (324-1) are arranged on the baffle (324) along the width direction of the vibration conveying module (31), and the correction strip (322) is located between two adjacent guide hole positions (324-1). The top surface of the left side of the sorting seat (321) is inclined, and a plurality of buffer accommodation positions (321-2) are arranged on the inclined surface of the sorting seat (321) and are arranged along the length direction of the vibration conveying module (31).

2. The integrated apparatus for shredding and sieving of medical waste with a needle according to claim 1, wherein The inner wall of the crushing working cavity (221) is protrudingly provided with a plurality of vertical crushing strips (221-1), and the plurality of vertical crushing strips (221-1) are arranged in an annular array. The outer wall of the main cone (24) is protrudingly provided with a plurality of annular crushing strips (241), and the plurality of annular crushing strips (241) are arranged in a vertical direction of the main cone (24) and are arranged in a vertical direction of the main cone (24). The diameters of the plurality of annular crushing strips (241) gradually increase from top to bottom, so that the width of the crushing channel (26) gradually decreases from top to bottom.

3. The medical waste shredding and sieving integrated apparatus with a needle according to claim 2, wherein The interval distance between two adjacent vertical crushing strips (221-1) is smaller than the size of the crushed plastic particles, and the interval distance between two adjacent annular crushing strips (241) is smaller than the size of the crushed plastic particles.

4. The apparatus according to claim 1, wherein The crushing working cavity (221) is in a conical shape. The bottom of the crushing lower seat (23) is protrudingly provided with a mounting portion (231) upward, the top of the mounting portion (231) is provided with an accommodation cavity (232) downward, the bottom end of the main cone (24) is rotatably arranged in the accommodation cavity (232), and the crushing driving source (25) is fixedly arranged outside the crushing lower seat (23).

5. The apparatus according to claim 1, wherein The crushing module (2) further comprises a primary screening seat (21), the primary screening seat (21) is fixedly arranged on the top of the crushing upper seat (22), the top of the primary screening seat (21) is provided with a primary screening cavity (211) downward, the bottom of the primary screening cavity (211) is provided with a material passing portion (212) downward, the material passing portion (212) is in communication with the crushing channel (26), and a material dispersing seat (216) is fixedly arranged above the material passing portion (212). The inner wall of the primary screening cavity (211) is vertically provided with a plurality of first strip-shaped holes (213), the plurality of first strip-shaped holes (213) are arranged in an annular array, and the first strip-shaped holes (213) are used for discharging metal strip-shaped objects from the primary screening cavity (211). The lower portion of the first strip-shaped hole (213) is provided with a row needle cavity (214), and the outer wall of the primary screening seat (21) is provided with a row needle opening (215) in communication with the row needle cavity (214). The bottom of the row needle cavity (214) is inclined.

6. The integrated shredding and sieving apparatus for medical waste with a needle according to claim 1, wherein Two sides above the mixed material outlet (233) are provided with discharge blocks (234), the discharge blocks (234) are arranged in an arc shape around the main cone (24), and are used for guiding the mixed material output from the crushing channel (26) to the mixed material outlet (233).

7. The integrated shredding and sieving apparatus for medical waste with a needle according to claim 1, wherein The bottom of the plastic output section (314) in the vibration conveying module (31) is provided with a plastic particle outlet (318).

8. The integrated shredding and sieving apparatus for medical waste with a needle according to claim 1, wherein A plurality of the row needle parts (316) are arranged at intervals along the conveying direction of the vibration conveying module (31), and two adjacent groups of the row needle parts (316) are arranged in a staggered manner. The row needle part (316) comprises a plurality of second strip-shaped holes (316-1), a plurality of the second strip-shaped holes (316-1) are arranged at intervals along the width direction of the vibration conveying module (31), and the second strip-shaped holes (316-1) are used for screening metal strip-shaped objects and discharging.

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