CN2368620Y

CN2368620Y - Automatic separator for plastic and rubber products

Info

Publication number: CN2368620Y
Application number: CN 98229709
Authority: CN
Inventors: 林武
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-10-20
Filing date: 1998-10-20
Publication date: 2000-03-15
Anticipated expiration: 2008-10-20

Abstract

The utility model provides an automatic sorter for plastic and rubber products, particularly a sorter which sorts waste plastic and rubber products from municipal solid waste. The automatic sorter mainly comprises a conveying steel belt, wherein, the surface of which is overspread with heat conducting nail spines, an electric heater arranged below an upper belt of a feed end, a liquid-cooled carrying roller group arranged below an upper belt of a discharge end, and a rotary blanking device below a lower belt. Points of the nail spines can be automatically pierced into the surfaces of the plastic and the rubber products via changes generated when the heat conducting nail spines are firstly fused by heated at contact points of the plastic and the rubber products, and then solidified by cooling, so that at the discharge end of the conveying belt, the plastic and the rubber products can be hooked without falling off by the points of the nail spines. The utility model has the advantages of high mechanization degree, high sorting rate and large processing capacity.

Description

The automatic selector of plastics and rubber

The utility model relates to material separator, particularly a kind of from domestic waste the separator of sorting waste or used plastics and rubber.

If can not from house refuse, sub-elect plastics and rubber constituent effectively, adopt what method to handle house refuse and all be harmful to.For example, utilize " composting process ": can not make qualified fertilizer because of this class material is difficult for degraded; Utilize " burning method ": will make this class material produce a large amount of toxic gases.On the other hand, plastics and rubber are again expensive raw materials for production.Even waste product, if plastics and rubber can be selected from house refuse and is collected, these materials will produce very remarkable economical value.

Generally speaking, plastics and rubber account for 6% of domestic waste total amount, and organic matters such as a large amount of swills in its proportion and the rubbish, garden garbage, timber are close and mix among domestic waste.At present for plastics and the reliable sorting technology of rubber, the main photometric sorting method that adopts: rubbish all is broken into graininess and individual layer low-density whereabouts, in the particle dropping process, utilize grain color that reflection of light is changed and produce the signal of telecommunication, and driving high frequency air valve, eject compressed air, the desire that electronic circuit is analyzed is selected blow off whereabouts track and collecting of particle.The weak point of this method is: equipment complex structure, cost height; Disposal ability is very low, and the crushing of material is very big, or the like.Be not suitable for from the domestic waste of enormous amount, selecting plastics and rubber.In fact, at present the garbage disposal plant in China city nearly all adopts for plastics and rubber and manually picks up the mode of selecting, and its labour intensity is big, sorting index is very low.

The purpose of this utility model provides a kind of motorisation unit that sub-elects plastics and rubber constituent from house refuse automatically, can alleviate hand labor intensity, improves material disposal ability and material sorting index.

Utilize routine techniques, heavy inorganic matters such as the stone in the domestic waste, metal, lime-ash can be sieved out; Also light materials such as paper and plastic sheeting can be sorted out, rest materials (account for rubbish total amount 70%) is the organic bodies that mix such as plastics, rubber, food refuse, garden garbage.The purpose of this utility model is selected plastics and rubber exactly automatically from this specific admixture body.

The purpose of this utility model is to utilize plastics and rubber to have thermoplasticity, adopt heat conduction " nail thorn " fully to contact with rubber article and make its contact point produce melting phenomenon with plastics, and then nail is stung can realize with the technical scheme that plastics and rubber combine.Its formation comprises that its surface is covered with the conducted heat conveyer belt of peg thorn, below tape on the feed end, be provided with an electric heater unit, below tape on the discharge end, be provided with water-cooled carrying roller group, under discharge end, be provided with rotary feeder below the tape, tape is provided with feed hopper on feed end, is provided with Material collecting box for harvesting at discharge end.When feed hopper equably during feed, along with the operation of conveyer belt, object is dispensed in above the heat conduction nail thorn of conveyer belt equably.In the thermal treatment zone, the nail thorn fully contacts with material, and makes the contact point of plastics and rubber article and nail thorn produce melting phenomenon, and other material component does not then produce this variation; When material was transported to the cooling zone, conveyer belt and nail thorn and material cooled off simultaneously, and nail thorn tip makes fusion point change condensation point into the temperature reduction of the contact point of plastics and rubber and produces the plastic degeneration.Under this state, nail thorn tip has been thrust plastics and rubber and has been combined closely.At the blanking end of conveyer, nail thorn catches on plastics and rubber article and does not fall naturally and be transported to down tape, and other material falls within the Material collecting box for harvesting down naturally; The rotary feeder place of tape under conveyer separates plastics and rubber and collect from the nail thorn by stinging the rod for stiring materials that is dislocation arrangement with nail.

The utility model utilizes plastics and rubber to have the characteristics of " partial melting that is heated variation ", by the heating and cooling device, make the contact point elder generation melted by heating of nail thorn and plastics and rubber, back cooled and solidified, adopt heat conduction nail thorn to thrust its surperficial way automatically, to mix the difference of plastics in the body and rubber and other organic matter comes, be particularly suitable for sorting, have mechanization degree height, sorting index height and advantage such as disposal ability is big and sorting charge is low plastics in the domestic waste and rubber.

Further specify the utility model with the following Examples:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is the feeder structural representation.

The transmission mechanism of steel belt conveyor can be continued to use the structure of existing ribbon conveyer.Steel band 1 surface sets firmly plurality of rows heat conduction nail thorn 2, and striker plate 3 guarantees that material is in last tape 15 operations.Feed end electric heater 4 can adopt the infrared ray heating plate and be installed in tape below.In last tape discharge end part water-cooled carrying roller group 5, be installed in above the frame 6 of tape below, constitute with several carrying rollers 8 that part is immersed in the cooling fluid by a water tank 7 that fills cooling fluid, carrying roller is driven by last tape and simultaneously steel band is cooled off.In tape 16 settings and its rotary feeder 9 that rotates in opposite directions down, be the rod for stiring materials 11 arranged that interlace by the nail thorn 2 on a rotary roller 10 and number row and the conveyer belt and constitute.Plastics and rubber and the cooling of heat conduction nail thorn for helping being melted can be provided with a blower fan system 17 above last tape discharge end part.During use the discharging opening of material feed hopper 12 to be selected is connected on the fragment position that is heated of conveyer belt, two Material collecting box for harvesting 13,14 is set in the discharge end bottom of conveyer belt.Material to be selected dispenses in tape 15 equably and is transferred to the process of blanking end the change procedure that is heated and is cooled going through from the discharging opening of feed hopper 12.Wherein, plastics and rubber are produced melting phenomenon in the heating period by 2 heating of heat conduction nail thorn; At cooling stage, the fusion point condensation of nail thorn and plastics and rubber and generation plasticity change, discharge end at conveyer belt, nail thorn catches on plastics and rubber and is brought to down tape 16, rotation feeder 9 is hit it get off down above the nail thorn of following tape, be collected in Material collecting box for harvesting 13, other material then falls within Material collecting box for harvesting 14 under conveyer belt discharge end nature.Automatically from the rubbish material that mixes, sub-elect plastics and rubber thus continuously.

Claims

1. plastics and the automatic selector of rubber, it is characterized in that but described selector has the heat conduction steel conveyor belt that its surface is covered with the peg thorn, front end bottom at last tape is provided with an electric heater unit, bottom at following tape is provided with a rotary feeder, described rotary blanking has a swing roller, the nail thorn that sets firmly on the cylinder on the row of number and the conveyer belt is the rod for stiring materials that interlaces and arrange, the direction of rotation of the cylinder traffic direction that nail stings on following tape in opposite directions.

2. as described plastics of claim 1. and the automatic selector of rubber, it is characterized in that on conveyer belt discharge end part, below the tape liquid-cooled carrying roller group being set, above the tape blower fan cooling device is being set on the conveyer belt discharge end part.