Food waste separating plastic cleaning system and method
Technical field
The invention belongs to plastics recovery technical fields in remaining meal rubbish, and in particular to a kind of food waste separating plastic cleaning system
And method.
Background technology
No matter more mature technically or in equipment single pure technics of reclaim of plastic waste processing is, but rubbish
Treatment plant's waste plastic is because of its substantial amounts and complicated components, traditional private waste plastic processing workshop or medium and small
It is excellent that type recycling processing enterprise must step technology pass, equipment is closed, site facility closes, several big thresholds in scale pass can form scale
Gesture embodies scale and benefit, and fortunately government agencies at all levels have appreciated that and give this industry or field policy and fund
It supports, so as to be greatly facilitated this industry, embodies huge Social benefit and economic benefit, obtain the weight of the whole society
Depending on.
At this stage, the treatment process of food waste separating plastic is mainly by several steps such as artificial separation, broken, cleaning and dehydrations
Composition.Wherein, cleaning is usually cleaned with clear water, other substances for being attached to frosting is made to come off with the method for stirring.To attached
Put forth effort stronger oil stain, ink, pigment etc., can be cleaned with hot water or cleaned using detergent.Once purged plastic flakes contain
There is large quantity of moisture, can be handled with the method for dehydration.
However, the treatment process of food waste separating plastic is primarily present two problems at this stage:First, the artificial separation amount of labour
Greatly, working environment is severe;Second is that water consumption is big, since the content of the waste plastics organic matter residual volume in rubbish from cooking and oil is big,
It is cleaned so needing constantly to replace addition clear water, it could be clean by plastic cleaning.
Invention content
In view of the defects existing in the prior art, the present invention provides a kind of food waste separating plastic cleaning system and method, can have
Effect solves the above problems.
The technical solution adopted by the present invention is as follows:
The present invention provides a kind of food waste separating plastic cleaning system, including:Precrushing system, impurity piece-rate system, plastics
Crushing system, plastic cleaning system and dehydration drying system;
Wherein, the impurity piece-rate system includes trash eliminator and screw conveyor;The charging of the screw conveyor
Mouth is connect with the discharge gate of the precrushing system;The feed inlet of the discharge gate of the screw conveyor and the trash eliminator
Connection;The plastic removal material mouth of the trash eliminator and the feed inlet of plastic collection connect;
The plastic crushing system includes water pump and crusher;The feed inlet of the water pump and the plastic collection
Inner cavity connection;The discharge gate of the water pump is connect with the feed inlet of the crusher;The discharge gate of the crusher with it is described
The feed inlet connection of plastic cleaning system;
The dehydration drying system includes discharge screw, dewaterer and drying unit;The feed end of the discharge screw with
The discharge port connection of the plastic cleaning system, the exhaust end of the discharge screw are connect with the feed inlet of the dewaterer;Institute
The discharge port for stating dewaterer is connect with the feed inlet of the drying unit;The discharge port of the drying unit discharges drying
Plastics afterwards.
Preferably, the trash eliminator includes housing (3), and the housing (3) is internally provided with screen drum, in the sieve
The barrel of cylinder sets multiple sieve pores;The axle center of the inside of the screen drum is provided with shaft, and the bottom of the shaft is close to the screen drum
Bottom wall, the top of the shaft pass through the top of the screen drum and with joining positioned at the external driving device (5) of the housing (3)
It is dynamic, under the action of the driving device (5), the shaft is driven to rotate;The shaft from top to bottom Spiral distribution have it is multiple
Parallel blade, each blade tilt upwards;
The side wall of the housing (3) is provided with sorting stage feed inlet (4);It is provided with below the housing (3)
The slurry collection slot (7) connected with the screen drum;The slurry collection slot (7) is configured with slurry discharge pipe (1);In addition, it also wraps
Include mashing pump (8), the feed inlet of the mashing pump (8) is connected with the slurry collection slot (7), the discharge port of the mashing pump (8) with
Slurry discharge pipe (1) connection;The plastic removal material mouth (2) connected with the screen drum is provided on the top of the housing (3).
Preferably, each acclivitous angle of the blade is 5-12 °;The aperture of the sieve pore is 10-30mm.
Preferably, the plastic cleaning system includes:Friction cleaning machine, rinse bath, friction potcher and potcher;
The feed inlet of the friction cleaning machine is connect with the discharge gate of the crusher;The discharge gate of the friction cleaning machine
Positioned at the top of the rinse bath;The feed inlet of the friction potcher is connected with the rinse bath;The friction potcher
Discharge port is located at the top of the potcher.
Preferably, the plastic cleaning system further includes water circulation system;
The water circulation system includes:Catch basin, dredge pump, precipitation oil removal box and water supply pump;
The notch of the catch basin is provided with grid;The water inlet of the catch basin respectively with the rinse bath and the drift
The discharge outlet connection of washing trough;The discharge outlet of the catch basin is connected by the dredge pump and the water inlet of the precipitation oil removal box
It connects;
Several partition boards are staggeredly equipped in the box house of the precipitation oil removal box;The discharge outlet of the precipitation oil removal box
It is connect with the water inlet of the water supply pump, the discharge outlet water inlet with the rinse bath and the potcher respectively of the water supply pump
Mouth connection.
Preferably, each partition board is staggered in the box house of the precipitation oil removal box, refers specifically to:
The setting data of the partition board are even number, by direction from left to right, are denoted as successively by partition board:1st partition board, the 2nd
The n-th partition board of partition board ...;Wherein, n is even number;
The roof of the precipitation oil removal box is fixed at the top of 1st partition board, the bottom of the 1st partition board sinks with described
There is setpoint distance between the bottom wall of shallow lake oil removal box;The water inlet of the precipitation oil removal box is arranged on a left side for the precipitation oil removal box
The top of side wall;
The bottom of 2nd partition board is fixed on the bottom wall of the precipitation oil removal box, and the top of the 2nd partition board sinks with described
There is setpoint distance between the roof of shallow lake oil removal box;
The set-up mode of 3rd partition board is identical with the set-up mode of the 1st partition board, the setting side of the 4th partition board
Formula is identical with the set-up mode of the 2nd partition board, and so on, the set-up mode of n-th partition board and setting for the 2nd partition board
It is identical to put mode;
The discharge outlet of the precipitation oil removal box is arranged on the lower part of the right side wall of the precipitation oil removal box.
The present invention also provides a kind of food waste separating plastic cleaning methods, include the following steps:
Step 1, using precrushing system to being crushed in advance by the plastics in processing rubbish from cooking;
Step 2, through step 1, treated that rubbish from cooking is transported to by screw conveyor in trash eliminator, by miscellaneous
Matter separator detaches organic matter and plastics in rubbish from cooking, and isolated plastics is drained into plastic collection;
Step 3, plastics in plastic collection are transported in crusher by water pump, by crusher, to plastics into
Row band water crushes;
Step 4, the plastics that step 3 obtains after broken are transported to inside rinse bath by friction cleaning machine, pass through cleaning
Slot cleans broken plastics;
Step 5, the plastics after step 4 is cleaned by the potcher that rubs are transported to potcher, by potcher to cleaning
Plastics afterwards are rinsed;
Step 6, the plastics after step 5 rinses are transferred in dewaterer using discharge screw and be dehydrated;Through dehydration
Plastics afterwards enter drying unit, dewatered plastics are dried by drying unit, after obtaining final process
Plastics.
Preferably, step 2 is specially:
S2.1 starts driving device (5), and then drives the shaft rotation being located inside screen drum, turns so as to drive to be fixed on
The blade rotation of axis;
S2.2, when being transported to inside screen drum by screw conveyor through step 1 treated rubbish from cooking, inside screen drum
The blade of rotation and the barrel synthesis of screen drum cut processed rubbish from cooking, for the organic matter in rubbish from cooking, pass through leaf
The dissection of piece and screen drum and pulp, obtained slurry are received by the sieve pore of screen drum to be flowed into the slurry below screen drum
Collect in slot (7);And plastics rise along inboard wall of riddle drum under the impact of dihedral vane and the double action of air-flow and pass through discharge port
(2) it discharges, and then realizes the separation of organic matter and plastics in rubbish from cooking.
Food waste separating plastic cleaning system provided by the invention and method have the following advantages:
(1) the efficient automatic sorting of plastics in rubbish from cooking is come out, improves the utilization of resource, while reduce environment
Pollution
(2) organic matter in plastics is separated, alleviates the intensity of cleaning, reduce water consumption;Also, it isolates
Organic matter can be recycled.
(3) enabling of precipitation oil removal box improves the utilization rate of water, alleviates the discharge capacity of sludge, reduces the row of sewage
It puts and the pollution of waste oil.
Description of the drawings
Fig. 1 is the overall structure diagram of food waste separating plastic cleaning system provided by the invention;
Fig. 2 is the structure diagram of impurity piece-rate system provided by the invention;
Fig. 3 is the structure diagram of water circulation system provided by the invention;
In figure 3,101- cleaning systems;102- catch basins;103- grids;104- dredge pumps;105- precipitates oil removal box;
106- partition boards;107- water supply pumps.
Specific embodiment
Below in conjunction with attached drawing, the present invention is described in detail:
With reference to Fig. 1, the present invention provides a kind of food waste separating plastic cleaning system, including:Precrushing system, impurity segregative line
System, plastic crushing system, plastic cleaning system and dehydration drying system.Each system is discussed in detail below:
(1) precrushing system
Precrushing system for being crushed in advance to the big part plastics in rubbish from cooking, do by the impurity separation for next step
Prepare.
(2) impurity piece-rate system
Impurity piece-rate system is made of trash eliminator, screw conveyor.The feed inlet of screw conveyor and precrushing system
The discharge gate connection of system;The discharge gate of screw conveyor and the feed inlet of trash eliminator connect;The plastic removal material of trash eliminator
Mouth is connect with the feed inlet of plastic collection.Trash eliminator is reduced for the organic matter in refuse plastic to be separated
Into the amount of the impurity such as the organic matter in cleaning system, ejected wash water is made to recycle the longer time.That is, pass through impurity point
From device, the impurity such as organic matter in rubbish from cooking plastics are removed in advance, hence it is evident that improve the efficiency of plastics sorting, and be later
Cleaning reduces impurity content.Improve the operating condition of worker.The slurry isolated is alternatively arranged as the raw material of biogas fermentation.
It is the structure diagram of impurity piece-rate system with reference to figure 2, trash eliminator includes housing 3, and the inside of housing 3 is set
Screen drum is equipped with, multiple sieve pores are set in the barrel of screen drum;The axle center of the inside of screen drum is provided with shaft, and the bottom of the shaft is close
The bottom wall of screen drum, the top of the shaft pass through the top of screen drum and link with the driving device 5 outside housing 3, driving
Under the action of device 5, shaft rotation is driven;Spiral distribution has multiple parallel blades to shaft from top to bottom, and each blade is upward
It tilts;
The side wall of housing 3 is provided with sorting stage feed inlet 4;The slurry connected with screen drum is provided in the lower section of housing 3
Expect collecting tank 7;Slurry collection slot 7 is configured with slurry discharge pipe 1;In addition, further include mashing pump 8, the feed inlet of the mashing pump 8 with
Slurry collection slot 7 connects, and the discharge port of the mashing pump 8 is connected with slurry discharge pipe 1;It is provided on the top of housing 3 and screen drum
The plastic removal material mouth 2 of connection.
In specific implementation, each acclivitous angle of blade is 5-12 °;The aperture of sieve pore is 10-30mm.
The operation principle of trash eliminator can be described generally as:
Into the kitchen garbage inside screen drum, separation is realized by following process:Circumference is set in the housing of closing
It is covered with the screen drum of sieve pore, the main shaft with blade is set inside screen drum, blade has the double action cut and form air-flow.Located
It manages object to be cut by blade and screen drum comprehensive function in screen drum, substance can be cut, i.e., organic matter is pulped is flowed by sieve pore
To slurry collection slot;And the plastics that can not be cut, then it is discharged by the discharge port on screen drum top.
(3) plastic crushing system
Plastic crushing system includes water pump and crusher, is crushed, and to waste and old modeling for plastic garbage to be carried out band water
Material plays a part of to prewet.
Specifically, the feed inlet of water pump and the inner cavity of plastic collection connect;The discharge gate of water pump and crusher into
Material mouth connects;The discharge gate of crusher and the feed inlet of plastic cleaning system connect;
(4) plastic cleaning system
Plastic cleaning system includes:Friction cleaning machine, rinse bath, friction potcher and potcher;For to broken
Plastics are cleaned and are rinsed, and removal is adhered to organic matter, oil, impurity on plastics etc..
Specifically, the feed inlet of friction cleaning machine and the discharge gate of crusher connect;The discharge gate of friction cleaning machine is located at
The top of rinse bath;The feed inlet of friction potcher is connected with rinse bath;The discharge port of friction potcher is located at the upper of potcher
Side.
In addition, plastic cleaning system further includes water circulation system;As shown in figure 3, the structure diagram for water circulation system,
Water circulation system includes:Catch basin, dredge pump, precipitation oil removal box and water supply pump;
The notch of catch basin is provided with grid;The water inlet of catch basin connects respectively with the discharge outlet of rinse bath and potcher
It connects;The discharge outlet of catch basin is connect by dredge pump with precipitating the water inlet of oil removal box;
Several partition boards are staggeredly equipped in the box house of precipitation oil removal box;Precipitate the discharge outlet and water supply pump of oil removal box
Water inlet connection, the water inlet of the discharge outlet of water supply pump respectively with rinse bath and potcher connect.
Wherein, each partition board is staggered in the box house of precipitation oil removal box, refers specifically to:
The setting data of partition board are even number, by direction from left to right, are denoted as successively by partition board:1st partition board, the 2nd every
The n-th partition board of plate ...;Wherein, n is even number;
Be fixed on the roof of precipitation oil removal box at the top of 1st partition board, the bottom wall of the bottom of the 1st partition board and precipitation oil removal box it
Between have setpoint distance;The water inlet of precipitation oil removal box is arranged on the top of the left side wall of precipitation oil removal box;
The bottom of 2nd partition board is fixed on the bottom wall of precipitation oil removal box, the roof of the top of the 2nd partition board and precipitation oil removal box it
Between have setpoint distance;
The set-up mode of 3rd partition board is identical with the set-up mode of the 1st partition board, the set-up mode of the 4th partition board and the 2nd partition board
Set-up mode is identical, and so on, the set-up mode of the n-th partition board is identical with the set-up mode of the 2nd partition board;
The discharge outlet of precipitation oil removal box is arranged on the lower part of the right side wall of precipitation oil removal box.
The operation principle of water circulation system is:Sewage caused by rinse bath and potcher is pooled to catch basin, blowdown
Sewage is got to precipitation oil removal box by pump, and the sewage after precipitation, oil removing is by water supply blowback cleaning system.This system significantly increases
The utilization ratio of water, the utilization ratio of water improve more than 40%, alleviate the processing load of sewage after cleaning.Oil removal box detaches
The waste oil gone out is alternatively arranged as making the raw material of biodiesel.
It can be seen that by water circulation system, it can be achieved that water resource recycles in plastic cleaning system, so as to saving
Water resource.
(5) dehydration drying system
Dehydration drying system includes discharge screw, dewaterer and drying unit;The feed end and plastic cleaning of discharge screw
The discharge port connection of system, the exhaust end of discharge screw and the feed inlet of dewaterer connect;The discharge port of dewaterer and dry list
The feed inlet connection of member;The discharge port of drying unit discharges dried plastics.By dehydration drying system, using going out
Material screw rod takes the plastics after cleaning to centrifugal dehydrator and is dehydrated, and enters back into drying unit and dewatered plastics are dried
It is dry, so as to the plastics that obtained that treated.
The present invention also provides a kind of food waste separating plastic cleaning methods, include the following steps:
Step 1, using precrushing system to being crushed in advance by the plastics in processing rubbish from cooking;
Step 2, through step 1, treated that rubbish from cooking is transported to by screw conveyor in trash eliminator, by miscellaneous
Matter separator detaches organic matter and plastics in rubbish from cooking, and isolated plastics is drained into plastic collection;
This step specifically includes following steps:
S2.1 starts driving device 5, and then drives the shaft rotation being located inside screen drum, and shaft is fixed on so as to drive
Blade rotation;
S2.2, when being transported to inside screen drum by screw conveyor through step 1 treated rubbish from cooking, inside screen drum
The blade of rotation and the barrel synthesis of screen drum cut processed rubbish from cooking, for the organic matter in rubbish from cooking, pass through leaf
The dissection of piece and screen drum and pulp, obtained slurry are received by the sieve pore of screen drum to be flowed into the slurry below screen drum
Collect in slot 7;And plastics rise along inboard wall of riddle drum under the impact of dihedral vane and the double action of air-flow and pass through discharge port 2
Discharge, and then realize the separation of organic matter and plastics in rubbish from cooking.
Step 3, plastics in plastic collection are transported in crusher by water pump, by crusher, to plastics into
Row band water crushes;
Step 4, the plastics that step 3 obtains after broken are transported to inside rinse bath by friction cleaning machine, pass through cleaning
Slot cleans broken plastics;
Step 5, the plastics after step 4 is cleaned by the potcher that rubs are transported to potcher, by potcher to cleaning
Plastics afterwards are rinsed;
Step 6, the plastics after step 5 rinses are transferred in dewaterer using discharge screw and be dehydrated;Through dehydration
Plastics afterwards enter drying unit, dewatered plastics are dried by drying unit, after obtaining final process
Plastics.
In conclusion food waste separating plastic cleaning system provided by the invention and method have the following advantages:
(1) the efficient automatic sorting of plastics in rubbish from cooking is come out, improves the utilization of resource, while reduce environment
Pollution
(2) organic matter in plastics is separated, alleviates the intensity of cleaning, reduce water consumption;Also, it isolates
Organic matter can be recycled.
(3) enabling of precipitation oil removal box improves the utilization rate of water, alleviates the discharge capacity of sludge, reduces the row of sewage
It puts and the pollution of waste oil.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
Depending on protection scope of the present invention.