WO2015070535A1 - 一种城市生活垃圾干湿联合分选系统 - Google Patents

一种城市生活垃圾干湿联合分选系统 Download PDF

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Publication number
WO2015070535A1
WO2015070535A1 PCT/CN2014/070965 CN2014070965W WO2015070535A1 WO 2015070535 A1 WO2015070535 A1 WO 2015070535A1 CN 2014070965 W CN2014070965 W CN 2014070965W WO 2015070535 A1 WO2015070535 A1 WO 2015070535A1
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Prior art keywords
pool
dry
wet
crushing
sorting system
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Application number
PCT/CN2014/070965
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English (en)
French (fr)
Inventor
袁浩然
王亚琢
鲁涛
陈勇
张位坚
王敏
Original Assignee
中国科学院广州能源研究所
袁浩然
王亚琢
鲁涛
陈勇
张位坚
王敏
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Application filed by 中国科学院广州能源研究所, 袁浩然, 王亚琢, 鲁涛, 陈勇, 张位坚, 王敏 filed Critical 中国科学院广州能源研究所
Priority to DE112014005209.4T priority Critical patent/DE112014005209B4/de
Priority to US15/035,946 priority patent/US10464073B2/en
Publication of WO2015070535A1 publication Critical patent/WO2015070535A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B9/00—General arrangement of separating plant, e.g. flow sheets
    • B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/142—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with two or more inter-engaging rotatable cutter assemblies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/20—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/36—Adding fluid, other than for crushing or disintegrating by fluid energy the crushing or disintegrating zone being submerged in liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/38—Adding fluid, other than for crushing or disintegrating by fluid energy in apparatus having multiple crushing or disintegrating zones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
    • B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
    • B03B5/36—Devices therefor, other than using centrifugal force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly

Definitions

  • the invention relates to a domestic garbage sorting system, in particular to a dry and wet joint sorting system for urban domestic garbage.
  • the object of the present invention is to provide a dry and wet joint sorting system for municipal solid waste, which separates the corrosive organic matter, the light combustible matter and the inorganic matter, and carries out related disposal for the separated kinds of substances, which can not only make urban domestic garbage as A resource is fully utilized, and it has high environmental benefits and social effects.
  • a dry and wet joint sorting system for urban domestic garbage comprising a dry crushing air selecting device and a wet moisture selecting device, wherein the dry crushing air selecting device comprises a feeding port provided at the top of the dry crushing air selecting device, a crushing bin located at a lower portion of the feed port, a screen located at a lower portion of the crushing bin, a wind selection chamber located at a lower portion of the screen, and an adaptive conveying speed at a lower speed of the wind-selecting chamber according to its own load-bearing capacity a slow rotating knife and a fast rotating knife that are turned to be the same in the crushing chamber, the slow rotating knife is installed directly below the feeding port; the fan is installed on the left side of the air selecting chamber;
  • the running direction of the adaptive conveyor belt is opposite to the direction of the wind speed;
  • the wet moisture selecting device comprises a pool, a feeding port provided on the right front side of the pool, a bracket provided above the pool, a partition fixedly arranged on the bracket, a crushing knife and a sorting device,
  • the pool The inlet pipe provided at the left end, the overflow port provided in the middle of the right rear end wall of the pool, the circulating water pump connected to the overflow port, and the filter provided at the connection between the overflow port and the circulating water pump a net, a discharge opening provided at a lower portion of the pool wall, a baffle provided at an acute angle to the bottom surface of the pool, and a slag spiral connected to a lower end of the baffle;
  • the upper end is fixed on the bracket, the lower end is connected to the bottom of the pool, and the middle part of the pool is separated; the front end of the marking device extends into the water, the rear end extends outwardly out of the pool, and the rear end is higher than the front end;
  • the circulating water pump is connected to the pool via
  • the feed port provided on the right front side of the pool of the wet moisture selection device is disposed at the lower end of the adaptive conveyor belt of the dry crushing air selection device, and the non-blown waste is sent to the left side by the adaptive conveyor belt.
  • the feed port falls into the pool.
  • the central axis of the slow rotating knife and the fast rotating knife disposed in the crushing chamber is mounted on the movable rail, and spring protection is respectively installed on the left side of the central shaft of the slow rotating cutter and the right side of the central shaft of the fast rotating cutter.
  • Device and emergency brake switch is provided on the left side of the central shaft of the slow rotating cutter and the right side of the central shaft of the fast rotating cutter.
  • the distance between the two rotating knives of the slow rotating knives and the fast rotating knives is set according to the requirements for the crushing of the garbage.
  • the speed of the fast rotating knife is 5-10 times of the rotational speed of the slow rotating knife.
  • the left side wall and the right side wall surface of the crushing bin are rotatable wall faces having a certain weight, which are in a vertical state under normal conditions, and an emergency brake switch is respectively installed on the left side wall surface and the right side wall surface of the crushing bin.
  • the screen is composed of a steel wire rope and a rectangular basic structure, and the steel wire ropes are all arranged in parallel on the rectangular basic structure.
  • One end of the steel wire rope is fixed on the rectangular basic structure, and the other end is suspended by a sliding buckle, and an emergency brake is installed above the heavy object. switch.
  • the distance between adjacent wire ropes is 50-80mm.
  • the vertical distance between the slow rotating knife and the fast rotating knife and the screen is 30 ⁇ 50 mm.
  • a protective cover is disposed outside the crushing knife provided on the bracket in the wet moisture selecting device.
  • the hook length on the check device is 80 ⁇ 120mm, 20 ⁇ 30mm below the liquid surface, and the spacing between adjacent hooks is 30 ⁇ 50mm.
  • the baffle is disposed at a lower end of the crushing knife at an angle to the bottom surface to block inorganic substances that sink into the bottom of the water from flowing with the water.
  • the picking device is preferably made of plastic to avoid corrosion and rust.
  • the invention has the following beneficial effects:
  • the invention consists of a dry crushing wind selection device and a wet type moisture selecting device, has a compact structure, adopts a crushing knife with different rotation speeds and rotating in the same direction, and solves problems such as easy winding and jamming when the garbage is broken, and can be continuously produced, and the production efficiency is achieved.
  • High, easy to operate, and with multiple protection devices the whole system is safe and reliable, can completely separate the corrosive organic matter, light combustibles and inorganic substances, and the light combustibles are selected by the dry crushing air separation device.
  • the low rate is convenient for subsequent energy utilization, so that urban domestic garbage can be fully utilized as a resource, turning waste into treasure, with high environmental and social benefits.
  • FIG. 1 is a schematic structural view of a dry-wet joint sorting system of the present invention
  • Figure 2 is a plan view of the wet moisture selecting device of the present invention.
  • Figure 3 is a front elevational view of the wet moisture selection device of the present invention.
  • FIG. 4 is a schematic structural view of a spring protection device of the dry crushing air selection device of the present invention.
  • FIG. 5 is a schematic structural view of a protective device for a rotatable wall surface of the dry crushing and air-selecting device of the present invention
  • FIG. 6 is a schematic structural view of a screen of the dry crushing and air-selecting device of the present invention
  • the utility model relates to a dry and wet joint sorting system for urban domestic garbage, which comprises a dry crushing wind selection device and a wet moisture selection device.
  • the dry crushing and air selecting device comprises a feeding port provided at the top of the dry crushing and air separating device, and a crushing chamber 2 located at a lower portion of the feeding port 1 and located at a lower portion of the crushing chamber 2 Screen 6, the wind selection chamber 7 located at the lower part of the screen 6, and the lower side of the air selection chamber 7 according to its own load-bearing
  • a fan 8 is mounted on the left side of the air selection chamber 7; the running direction of the adaptive conveyor belt 9 is opposite to the direction of the wind speed.
  • the wet moisture selecting device includes a pool 10, a feeding port 11 provided at a right front side of the pool 10, a bracket 12 disposed above the pool 10, and the bracket 12 a partition plate 13 fixedly provided, a crushing blade 14 and a hooking device 15, an inlet pipe 16 provided at a left end of the pool 10, an overflow port 17 provided in a middle portion of a right rear end pool wall of the pool 10, and a circulating water pump 19 connected to the overflow port 17, a screen 18 provided at a junction of the overflow port 17 and the circulating water pump 19, a discharge port 21 provided in a lower middle portion of the pool wall of the pool 10, and the pool a baffle 22 at an acute angle to the bottom surface of the pool 10 and a slag spiral 23 connected to the lower end of the baffle 22; the upper end of the baffle 13 is fixed to the bracket 12, and the lower end is The bottom of the pool 10 is connected to separate a portion of the pool 10; the front end of the hooking device 15 extends into the
  • the feed port 11 provided on the right front side of the pool 10 of the wet moisture selecting device is disposed at the lower end of the adaptive conveyor belt 9 of the dry crushing air selecting device, and the unbleached garbage is sent to the adaptive conveyor belt 9 On the left side, it falls into the pool 10 through the feed port 11.
  • the central axis of the slow rotary knife 3 and the fast rotary cutter 4 provided in the crushing chamber 2 is mounted on the movable rail 31, and is on the left side of the central axis of the slow rotary cutter 3 and the right axis of the fast rotary cutter 4
  • Spring protection devices 33 and emergency brake switches 32 are mounted on the sides, respectively.
  • the spring protection setting is shown in Figure 4. This device is installed on the left side of the central axis of the slow rotating knife 3 and the right side of the central axis of the fast rotating knife 4. In the case of encountering hard-to-break garbage, the blade is stuck, two The crushing knives move along the movable rail 31, and after the emergency brake switch 32 is touched, the system is stopped to protect the blade.
  • the speed of the fast rotating knife 4 is 5-10 times the rotational speed of the slow rotating knife 3.
  • the vertical distance between the slow rotating knife 3 and the fast rotating knife 4 and the screen 6 is 30 to 50 mm.
  • the protective device of the rotatable wall surface 5 is as shown in FIG. 5.
  • the left side wall surface and the right side wall surface of the crushing chamber 2 are rotatable wall surfaces 5, and the left side wall surface and the right side wall surface of the crushing chamber 2 are respectively equipped with emergency braking.
  • Switch 51 Under normal circumstances, the rotatable wall surface 5 is in a vertical state. If a large object enters, in order to avoid damage to the blade, Then, the rotatable wall surface 5 is pushed, and after the emergency brake switch 51 is touched, the system is stopped.
  • the screen 6 is composed of a wire rope 61 and a rectangular base structure 65.
  • the wire ropes 61 are all arranged in parallel on the rectangular base structure 65.
  • One end of the wire rope 61 is fixed to the rectangular base structure 65, and the other end passes
  • the slider 63 hangs the weight 62, and the emergency brake switch 64 is mounted above the weight 62.
  • the wire ropes 61 are all arranged in parallel in the lower portion of the crushing bin 2.
  • the distance between adjacent wire ropes 61 is 50-80 mm.
  • the weight of the weight 62 can be selected according to the actual situation. According to the actual situation of the garbage in Guangzhou, the weight 62 we selected is about 100kg.
  • a protective cover 24 is disposed outside the crushing blade 14 provided on the bracket 12 in the wet type moisture selecting device.
  • the hook length of the hooking device 15 is 80 ⁇ 120mm, and the depth of the hook is 20 ⁇ 30mm, and the spacing between adjacent hooks is 30 ⁇ 50mm.
  • the baffle 22 is disposed at a lower end of the crushing blade 14 at an acute angle with the bottom surface of the pool 10 to block inorganic substances that sink into the bottom of the water from flowing with the water.
  • the picking device 15 is preferably made of plastic to avoid corrosion and rust.
  • the feed port 11 falls into the pool 10. Due to the partitioning of the pool 10 by the partition 13, the water in the pool 10 is swirled with the rotation of the crushing blade 14, and the direction of the water flow is counterclockwise; The garbage entering the material port 11 is broken again by the crushing knife 14
  • the flow of water flows to the sorting device 15, and the remaining plastic and paper sheets are hooked by the sorting device 15; the heavy inorganic substances are collected in the bottom of the pool 10 and are collected by the baffle 22 in the baffle 22 Bottom, being out
  • the slag spiral 23 is discharged; the suspended matter in the water in the upper middle layer is less, flows out through the overflow port 17, is filtered through the filter net 18, enters the circulating water pipe 20 through the circulating water pump 19, and re-enters the pool 10, and the other is in the middle and lower layers of the water surface.
  • the suspended matter such as the kitchen residue is periodically discharged from the discharge port 21 to be composted; when the amount of water in the pool 10 is insufficient, it is replenished by the

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Processing Of Solid Wastes (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Disintegrating Or Milling (AREA)

Abstract

一种城市生活垃圾干湿联合分选系统，包括干式破碎风选装置和湿式水分选装置，干式破碎风选装置包括进料口（1）、破碎仓（2）、筛网（6）、风选室（7）、自适应输送带（9）；破碎仓内相邻设置有转向相同的慢速旋转刀（3）和快速旋转刀（4），慢速旋转刀安装在进料口正下方；风选室左侧安装有风机（8）；湿式水分选装置包括水池（10）、水池的右前方设有的进料口（11）、水池的上方设有的支架（12）、支架上固定设有的隔板（13）、破碎刀（14）和勾选装置（15）、水池的左端设有的进水管（16）、水池的右后端池壁中部设有的溢流口（17）、循环水泵（19）、滤网（18）、出料口（21）、导流片（22）和出渣螺旋（23）；循环水泵经循环水管（20）跟水池连通。该系统使得垃圾破碎时易缠绕，卡死等问题，可连续生产，可将可腐有机物、轻质可燃物、无机物完全分离，轻质可燃物含水率低。

Description

一种城市生活垃圾干湿联合分选系统
技术领域：
本发明涉及一种生活垃圾分选系统，具体涉及一种城市生活垃圾干湿联合分 选系统. 背景技术：
据统计， 2012年我国城市生活垃圾的年清运量约为 1.64亿吨， 并以每年 8%-10%的速度增长， 全国城市生活垃圾的处理已成为影响城市可持续发展的重 要因素之一。 目前， 我国对于城市生活垃圾的处理方式主要有卫生填埋， 堆肥， 焚烧三种。 其中焚烧由于能使垃圾大幅度减容和减重， 并能产生清洁的电能，成 为较热门的处理方式。但是我国生活垃圾成分复杂， 大小不一， 尤其是含有大量 厨余垃圾， 且多置于塑料袋中， 使得生活垃圾含水率大多在 50%以上， 造成垃圾 燃烧困难， 效率低， 更是产生二噁英的诱因之一。 发明内容：
本发明的目的是提供一种城市生活垃圾干湿联合分选系统， 将可腐有机物、 轻质可燃物、无机物分开， 针对分开后的各类物质开展相关处置， 不仅可以使城 市生活垃圾作为一种资源而得到充分利用， 同时具有很高的环境效益和社会效πϊ-。
本发明是通过以下技术方案予以实现的：
一种城市生活垃圾干湿联合分选系统，该系统包括干式破碎风选装置和湿式 水分选装置， 所述干式破碎风选装置包括干式破碎风选装置顶部设有的进料口、 位于所述进料口下部的破碎仓、位于所述破碎仓下部的筛网、位于所述筛网下部 的风选室、位于所述风选室下侧的根据自身承重改变速度的自适应输送带； 所述 破碎仓内相邻设置有转向相同的慢速旋转刀和快速旋转刀，所述慢速旋转刀安装 在进料口正下方； 所述风选室左侧安装有风机； 所述自适应输送带运行方向与风 速方向相反；
所述湿式水分选装置包括水池、所述水池的右前方设有的进料口、所述水池 的上方设有的支架、所述支架上固定设有的隔板、破碎刀和勾选装置、所述水池 的左端设有的进水管、所述水池的右后端池壁中部设有的溢流口、跟所述溢流口 连接的循环水泵、所述溢流口跟循环水泵的连接处设置的滤网、所述水池池壁中 下部设有的出料口、所述水池底部设有的与水池底面成锐角的导流片和跟所述导 流片下端连接的出渣螺旋； 所述隔板上端固定于所述支架上， 下端与所述水池底 部相连， 将水池中部分隔开； 所述勾选装置的前端伸入水中， 后端向外延伸出水 池外， 且后端高于前端； 所述循环水泵经循环水管跟水池连通， 所述导流片设在 破碎刀的下端；
所述湿式水分选装置的水池的右前方设有的进料口设在所述干式破碎风选 装置的自适应输送带下端， 不能吹动的垃圾由自适应输送带送往左侧，通过进料 口落入水池。
所述破碎仓内设置的慢速旋转刀和快速旋转刀的中心轴安装在可移动导轨 上，并且在慢速旋转刀中心轴的左侧和快速旋转刀中心轴的右侧分别安装有弹簧 保护装置和紧急制动开关。
慢速旋转刀和快速旋转刀两台旋转刀之间的距离，根据对垃圾的破碎要求设 置。
所述快速旋转刀的转速为慢速旋转刀转速的 5-10倍。
所述破碎仓的左侧壁面和右侧壁面为具有一定重量的可旋转壁面，在正常情 况下处于垂直状态， 且破碎仓的左侧壁面和右侧壁面分别安装有紧急制动开关。
所述筛网由钢丝绳和矩形基础结构构成，钢丝绳全部平行排列于所述矩形基 础结构上， 钢丝绳的一端固定于矩形基础结构上 另一端通过滑扣下垂重物，重 物上方安装有紧急制动开关。
相邻钢丝绳之间的距离为 50-80mm。
所述慢速旋转刀和快速旋转刀与筛网之间的垂直距离为 30~50mm。
所述湿式水分选装置中支架上设有的破碎刀外部设有保护罩。
所述勾选装置上的钩长为 80~120mm， 伸入液面以下 20~30mm， 相邻钩之 间的间距为 30~50mm。
所述导流片设在破碎刀的下端， 与底面成一定角度， 阻挡沉入水底的无机物 随水流流动。
所述勾选装置优选为由塑料制备， 可避免腐蚀和生锈。 本发明具有如下有益效果：
本发明由干式破碎风选装置与湿式水分选装置组成， 结构紧凑，采用转速不 同， 同向转动的的破碎刀，解决了垃圾破碎时易缠绕，卡死等问题，可连续生产， 生产效率高， 操作简单， 同时设有具有多重保护装置， 整套系统安全可靠， 可将 可腐有机物、轻质可燃物、无机物完全分离， 且轻质可燃物由干式破碎风选装置 选出， 含水率低， 便于后续能源化利用， 从而使城市生活垃圾作为一种资源而得 到充分利用， 变废为宝， 具有很高的环境效益和社会效益。 附图说明：
图 1是本发明干湿联合分选系统的结构示意图；
图 2是本发明湿式水分选装置的俯视图；
图 3是本发明湿式水分选装置的正视图；
图 4是本发明干式破碎风选装置的弹簧保护装置的结构示意图；
图 5是本发明干式破碎风选装置的可旋转壁面的保护装置的结构示意图； 图 6是本发明干式破碎风选装置的筛网的结构示意图；
其中， 1、 进料口， 2、 破碎仓， 3、 慢速旋转刀， 4、 快速旋转刀， 5、 可旋 转壁面， 6、 筛网， 7、 风选室， 8、 风机， 9、 自适应输送带， 10、 水池， 11、进 料口， 12、 支架， 13、 隔板， 14、 破碎刀， 15、 勾选装置， 16、 进水管， 17、溢 流口， 18、 滤网， 19、 循环水泵， 20、 循环水管， 21、 出料口， 22、 导流片， 23、 出渣螺旋， 24、保护罩， 25、 轻质可燃物， 31、 可移动导轨， 32、 紧急制动开关， 33、 弹簧保护装置， 51、 紧急制动开关， 61、 钢丝绳， 62、 重物， 63、 滑扣， 64、 紧急制动开关， 65、 矩形基础结构。 具体实施方式：
以下是对本发明的进一步说明， 而不是对本发明的限制。
一种城市生活垃圾干湿联合分选系统， 该系统包括干式破碎风选装置和湿式 水分选装置。如图 1所示，所述干式破碎风选装置包括干式破碎风选装置顶部设 有的进料口 1、 位于所述进料口 1下部的破碎仓 2、 位于所述破碎仓 2下部的筛 网 6、 位于所述筛网 6下部的风选室 7、 位于所述风选室 7下侧的根据自身承重 改变速度的自适应输送带 9; 所述破碎仓 2内相邻设置有转向相同的慢速旋转刀 3和快速旋转刀 4， 所述慢速旋转刀 3安装在进料口 1正下方； 所述风选室 7左 侧安装有风机 8; 所述自适应输送带 9运行方向与风速方向相反。
如图 2和 3所示， 所述湿式水分选装置包括水池 10、 所述水池 10的右前方 设有的进料口 11、 所述水池 10的上方设有的支架 12、 所述支架 12上固定设有 的隔板 13、 破碎刀 14和勾选装置 15、 所述水池 10的左端设有的进水管 16、所 述水池 10的右后端池壁中部设有的溢流口 17、 跟所述溢流口 17连接的循环水 泵 19、所述溢流口 17跟循环水泵 19的连接处设置的滤网 18、所述水池 10池壁 中下部设有的出料口 21、 所述水池 10底部设有的与水池 10底面成锐角的导流 片 22和跟所述导流片 22下端连接的出渣螺旋 23; 所述隔板 13上端固定于所述 支架 12上， 下端与所述水池 10底部相连， 将水池 10中部分隔开； 所述勾选装 置 15的前端伸入水中， 后端向外延伸出水池 10外， 且后端高于前端； 所述循环 水泵 19经循环水管 20跟水池 10连通， 所述导流片 22设在破碎刀 14的下端。
所述湿式水分选装置的水池 10的右前方设有的进料口 11设在所述干式破碎 风选装置的自适应输送带 9下端， 不能吹动的垃圾由自适应输送带 9送往左侧， 通过进料口 11落入水池 10。
所述破碎仓 2内设置的慢速旋转刀 3和快速旋转刀 4的中心轴安装在可移动 导轨 31上， 并且在慢速旋转刀 3中心轴的左侧和快速旋转刀 4中心轴的右侧分 别安装有弹簧保护装置 33和紧急制动开关 32。
弹簧保护设置如图 4所示，此装置在慢速旋转刀 3中心轴的左侧和快速旋转 刀 4中心轴的右侧各安装一个， 在遇到难以破碎的垃圾， 刀片卡住之后， 两个破 碎刀会沿可移动导轨 31移动，在触碰紧急制动开关 32后，系统停止，保护刀片。
慢速旋转刀 3和快速旋转刀 4两台旋转刀之间的距离，根据对垃圾的破碎要 求设置。
所述快速旋转刀 4的转速为慢速旋转刀 3转速的 5-10倍。
所述慢速旋转刀 3和快速旋转刀 4与筛网 6之间的垂直距离为 30~50mm。 可旋转壁面 5的保护装置如图 5所示，所述破碎仓 2的左侧壁面和右侧壁面 为可旋转壁面 5，且破碎仓 2的左侧壁面和右侧壁面分别安装有紧急制动开关 51。 在正常情况下可旋转壁面 5处于垂直状态，若有大块物体进入，为避免破坏刀片， 则推动可旋转壁面 5， 在触碰紧急制动开关 51后， 系统停止。
如图 6所示， 所述筛网 6由钢丝绳 61和矩形基础结构 65构成， 钢丝绳 61 全部平行排列于所述矩形基础结构 65上，钢丝绳 61的一端固定于矩形基础结构 65上， 另一端通过滑扣 63下垂重物 62， 重物 62上方安装有紧急制动开关 64。
钢丝绳 61全部平行排列于所述破碎仓 2下部。
相邻钢丝绳 61之间的距离为 50-80mm。
当有大块垃圾堆积在筛网 6上时， 构成筛网 6的钢丝绳 61会向下运动， 重 物 62被拉起， 当重物 62运动触碰到紧急制动开关 64时， 系统停止。
重物 62的重量可根据实际情况进行选择， 依据广州垃圾的实际情况， 我们 选取的重物 62约 100kg。
所述湿式水分选装置中支架 12上设有的破碎刀 14外部设有保护罩 24。 所述勾选装置 15上的钩长为 80~120mm， 伸入液面以下 20~30mm， 相邻钩 之间的间距为 30~50mm。
所述导流片 22设在所述破碎刀 14的下端， 与所述水池 10底面成锐角， 阻 挡沉入水底的无机物随水流流动。
所述勾选装置 15优选为由塑料制备， 可避免腐蚀和生锈。
具体工作过程如下：
启动系统， 将垃圾由干式破碎风选装置顶部设有的进料口 1投入破碎仓 2， 垃圾由慢速旋转刀 3带动旋转， 旋转到快速旋转刀 4一侧垃圾被破碎，落到破碎 仓 2下部的筛网 6上， 落到筛网 6上的垃圾若尺寸小于筛网 6相邻钢丝绳间隙， 则落入风选室 7， 若尺寸大于筛网 6相邻钢丝绳间隙， 则停留在筛网 6上再次被 慢速旋转刀 3和快速旋转刀 4的旋转刀片带起破碎，直至垃圾破碎到尺寸小于筛 网 6相邻钢丝绳间隙从而落入风选室 7;进入风选室 7的垃圾，在风机 8作用下， 轻质可燃物 25被吹向右侧收集口，不能吹动的垃圾由自适应输送带 9送往左侧， 通过湿式水分选装置的水池 10的右前方设有的进料口 11落入水池 10， 由于隔 板 13将水池 10中部分隔开的作用，水池 10中的水随着破碎刀 14的旋转而产生 旋流， 水流方向为逆时针方向； 从进料口 11进入的垃圾被破碎刀 14再次破碎， 经由水流流到勾选装置 15处， 残留的塑料、纸片被勾选装置 15勾出； 重的无机 物沉入水池 10底部的过程中在导流片 22的作用下聚集在导流片 22底部， 被出 渣螺旋 23排出； 处于中上层的水中的悬浮物较少， 经溢流口 17流出， 经过滤网 18过滤， 再通过循环水泵 19进入循环水管 20， 重新进入水池 10中， 其它处于 水面中下层的厨余残渣等悬浮物， 由出料口 21定期排出， 进行堆肥处理； 水池 10中水量不足时， 通过进水管 16进行补充。

Claims

权利要求书
1、 一种城市生活垃圾干湿联合分选系统， 该系统包括干式破碎风选装置和 湿式水分选装置，所述干式破碎风选装置包括干式破碎风选装置顶部设有的进料 口 （1 )、 位于所述进料口 （1 )下部的破碎仓 （2)、 位于所述破碎仓 （2) 下部的 筛网 （6)、 位于所述筛网 （6)下部的风选室 （7)、 位于所述风选室 （7) 下侧的 根据自身承重改变速度的自适应输送带 （9); 所述破碎仓 （2) 内相邻设置有转 向相同的慢速旋转刀 （3)和快速旋转刀 （4)， 所述慢速旋转刀 （3)安装在进料 口 （1 ) 正下方； 所述风选室 （7)左侧安装有风机 （8); 所述自适应输送带 （9) 运行方向与风速方向相反；
所述湿式水分选装置包括水池 （10)、 所述水池 （10) 的右前方设有的进料 口 （11 )、 所述水池 （10) 的上方设有的支架 （12)、 所述支架 （12) 上固定设有 的隔板 （13)、 破碎刀 （14)和勾选装置 （15)、 所述水池 （10) 的左端设有的进 水管 （16)、 所述水池 （10) 的右后端池壁中部设有的溢流口 （17)、 跟所述溢流 口 （17) 连接的循环水泵 （19)、 所述溢流口 （17) 跟循环水泵 （19) 的连接处 设置的滤网（18)、所述水池（10)池壁中下部设有的出料口（21 )、所述水池（10) 底部设有的与水池 （10)底面成锐角的导流片 （22)和跟所述导流片 （22)下端 连接的出渣螺旋 （23); 所述隔板 （13) 上端固定于所述支架 （12) 上， 下端与 所述水池 （10)底部相连； 所述勾选装置 （15) 的前端伸入水中， 后端向外延伸 出水池 （10)夕卜， 且后端高于前端； 所述循环水泵 （19)经循环水管 （20)跟水 池 （10) 连通， 所述导流片 （22) 设在破碎刀 （14) 的下端；
所述湿式水分选装置的水池（10) 的右前方设有的进料口 （11 )设在所述干 式破碎风选装置的自适应输送带（9)下端，不能吹动的垃圾由自适应输送带（9) 送往左侧， 通过进料口 （11 ) 落入水池 （10)。
2、 根据权利要求 1所述的城市生活垃圾干湿联合分选系统， 其特征在于， 所述破碎仓 （2) 内设置的慢速旋转刀 （3) 和快速旋转刀 （4) 的中心轴安装在 可移动导轨 （31 ) 上， 并且在慢速旋转刀 （3) 中心轴的左侧和快速旋转刀 （4) 中心轴的右侧分别安装有弹簧保护装置 （33) 和紧急制动开关 （32)。
3、 根据权利要求 1或 2所述的城市生活垃圾干湿联合分选系统， 其特征在 于， 所述快速旋转刀 （4) 的转速为慢速旋转刀 （3) 转速的 5-10倍。
4、 根据权利要求 1或 2所述的城市生活垃圾干湿联合分选系统， 其特征在 于， 所述破碎仓 （2) 的左侧壁面和右侧壁面为可旋转壁面 （5)， 且破碎仓 （2) 的左侧壁面和右侧壁面分别安装有紧急制动开关 （51 )。
5、 根据权利要求 1或 2所述的城市生活垃圾干湿联合分选系统， 其特征在 于， 所述筛网 （6 ) 由钢丝绳 （61 ) 和矩形基础结构 (65)构成， 钢丝绳 （61 ) 全 部平行排列于所述矩形基础结构 (65)上， 钢丝绳 （61 ) 的一端固定于矩形基础结 构 (65)上， 另一端通过滑扣 （63 ) 下垂重物 （62)， 重物 （62) 上方安装有紧急 制动开关 （64)。
6、 根据权利要求 5所述的城市生活垃圾干湿联合分选系统， 其特征在于， 相邻钢丝绳 （61 ) 之间的距离为 50-80mm。
7、 根据权利要求 1所述的城市生活垃圾干湿联合分选系统， 其特征在于， 所述湿式水分选装置中支架（12)上设有的破碎刀 （14)外部设有保护罩（24)。
8、 根据权利要求 1所述的城市生活垃圾干湿联合分选系统， 其特征在于， 所述勾选装置 （15 ) 上的钩长为 80~120mm， 伸入液面以下 20~30mm， 相邻钩 之间的间距为 30~50mm。
9、 根据权利要求 1或 8所述的城市生活垃圾干湿联合分选系统， 其特征在 于， 所述勾选装置 （15 ) 由塑料制备。
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