CN2207237Y

CN2207237Y - Supersonic cleaner for wasted plastic film

Info

Publication number: CN2207237Y
Application number: CN94246353U
Authority: CN
Inventors: 凌森; 朱复华
Original assignee: Beijing University of Chemical Technology
Current assignee: Beijing University of Chemical Technology
Priority date: 1994-12-28
Filing date: 1994-12-28
Publication date: 1995-09-13
Anticipated expiration: 2004-12-28

Abstract

The utility model relates to an ultrasonic cleaner for wasted plastic films. The utility model is composed of a groove body and an ultrasonic generator. The groove body is square-box-shaped. A cleaning liquid inlet is arranged at the front part of the groove body. A discharge port is arranged on the back wall of the groove body. The lower part of the groove body is provided with a filtration sieve inside. The ultrasonic generator is arranged on inner walls at both sides of the groove body. The groove body is provided with a floating plate, a folded plate and a baffle plate inside. The ultrasonic generator is composed of ultrasonic transducers and a shell. The ultrasonic transducers are arranged in inverse-triangle mode in the shell. The utility model can be used for cleaning treatment in regeneration process of wasted plastic films (agricultural films, mulching films).

Description

Supersonic cleaner for wasted plastic film

The utility model relates to a kind of liquid cleaning equipment of ultrasonic vibration, is specially adapted to the cleaning of waste or used plastics film.

The regeneration processing of waste or used plastics film generally will be passed through fragmentation, cleaning, dehydration, dry processing and could further be processed into goods.General cleaning treatment adopts the method for machinery, the waste or used plastics film after the fragmentation is placed in the water stirs the silt dirt on flush away plastic foil surface.Adopt this mechanical means, the dirt strong to the frosting adhesion is difficult to remove, and not only cleaning performance is very undesirable, and energy consumption is big, can't continued operation.Cleaning performance directly has influence on the processing characteristics and the quality of regenerated plastics goods.The cleaning method of ultrasonic vibration, the cleaning to product surface in machinery and electron trade early has application, and action of ultrasonic waves is easily accepted in the metal surface, obtains cleaning performance preferably easily.Because the proportion of plastic foil is about 0.7, and is lighter than water, swim in water above, hyperacoustic acoustic pressure and acoustic streaming are very weak to soft plastic foil effect, the ultrasonic cleaning apparatus of common mechanical, used in electronic industry can not be used for the cleaning of plastic foil.

The purpose of this utility model provides a kind of equipment that cleans waste or used plastics film surface contaminants, this equipment energy continued operation, and cleaning performance is good, can be used for waste or used plastics film regeneration processing.

The utility model waste or used plastics supersonic wave cleaning machine is made of cell body and supersonic generator.Cell body is a square box shape, and the filter washing water inlet is located at the cell body front portion, and discharging opening is located on the cell body rear wall; Bottom in the cell body is provided with screen; Supersonic generator is located on the both sides inwall of cell body.The position is provided with floating plate after the anterior filter washing water inlet in cell body; Be provided with flap before the rear portion discharging opening in cell body.Be arranged with vertical baffle in parallel between the top supersonic generator in cell body, there is bracing frame the baffle plate both sides, and bracing frame is connected with the top of cell body both sides inwall.The supersonic generator that is located at cell body both sides inwall preferably is staggered arranged distribution.Supersonic generator is made of housing and ultrasonic transducer, and ultrasonic transducer is inverted triangle and is arranged in the housing.

Fig. 1 is the utility model waste or used plastics film supersonic wave cleaning machine front view.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the side view of Fig. 1.

Fig. 4 is the layout schematic diagram of ultrasonic transducer.

As Fig. 1, Fig. 2 and shown in Figure 3, the utility model waste or used plastics film supersonic wave cleaning machine, constitute by cell body 1 and supersonic generator 2, cell body 1 is a square box shape, filter washing water inlet 3 is located at cell body 1 front portion, and discharging opening 4 is located on the rear wall 5 of cell body 1, and screen 6 is arranged at the bottom in the cell body 1, screen 6 is placed on the support 7 of cell body 1 inwall, and supersonic generator 2 is located on the both sides inwall 8 of cell body 1.The position is provided with floating plate 9 after the anterior filter washing water inlet 3 in cell body 1, is provided with flap 10 before the rear portion of cell body 1 discharging opening 4.Between cell body 1 internal upper part supersonic generator 2, the polylith vertical baffle 11 that be arranged in parallel, there is bracing frame 12 both sides of baffle plate 11, and bracing frame 12 is connected with the top of cell body 1 both sides inwall 8.Supersonic generator is made of housing 13 and ultrasonic transducer 14.Ultrasonic transducer 14 is inverted triangle and arranges and to be fixed in the housing 13 as shown in Figure 4, and supersonic generator 2 is suspended on the cell body 1 both sides inwall 8.

The waste or used plastics plastic sheeting for farm use that the utility model waste or used plastics supersonic wave cleaning machine is used to reclaim, when mulch film cleans, cleaning fluid can be selected water or organic solution (as water and acetone soln) for use according to the dirt on plastic foil surface, cleaning fluid injects in the cleaning machines from filter washing water inlet 3 with pump, the top of the aspect ratio supersonic generator 2 of overfall 15 exceeds approximate number centimetre, to guarantee that supersonic generator 2 is immersed in the cleaning fluid, the top of flap 10 should be lower than the top of supersonic generator 2, and be higher than the height of discharging opening 4, make cleaning fluid and floating at an upper portion thereof shredded plastic film can successfully pass through flap, outside discharging opening 4 usefulness pumps are extracted cleaning machine out, process to subsequent processing.Plastic foil through fragmentation is sent into from the top of cleaning machine, and floating plate 9 floats in the cleaning fluid plastic film, avoids taking out of outside the cleaning machine from overfall 15.Supersonic generator 2 is suspended on the cell body both sides inwall 8, and the distribution that preferably is staggered can be avoided ultrasonic wave to interfere mutually and cause sound field the blind area to occur.Baffle plate 11 is arranged between supersonic generator 2, plastic film is rolled in the cleaning fluid that flows, the ultrasonic wave of launching with supersonic generator 2 fully acts on, and obtains better cleaning effect under ultrasonic cavitation.The silt that gets off from the plastic film surface clean is deposited on the bottom of cell body 1 through the screen 6 of cell body 1 bottom, and screen 6 places on the support 7 in the cell body both sides inwall 8, the cleaning of can regular dismounting getting off, and remove the dirts such as silt of cell body 1 bottom deposit.Be provided with sewage draining exit 16 in the bottom of cell body 1, can discharge the dirt in the cell body 1.Supersonic generator 2 is suspended on the first half of cell body both sides inwall 8, can be not overhauling, change under the Parking condition, and very convenient.Supersonic generator 2 is made up of a plurality of ultrasonic transducers 14 that are the del arrangement, because of plastic film is to swim in cleaning fluid top, ultrasonic transducer 14 top quantity are more than the quantity of bottom, can make the energy of ultrasonic wave emission strong in the intensive place of plastic film, more help ultrasonic wave and plastic film effect, obtain desirable cleaning performance.Regulate, the input quantity of the input amount of control plastic film, cleaning fluid and from the output withdrawal rate of discharging opening, the height of plastic film and the ratio of cleaning liquid measure, cleaning fluid and flow are in carry out continued operation under the optimum state.Big and the more situation of amount of contaminants for flushing dose, the length of the cell body 1 that can suitably extend, the quantity (is 4 at supersonic generator shown in Figure 1) of increase supersonic generator 2 is to obtain satisfied cleaning performance and higher cleaning efficiency.

When handling 2 kilograms of waste or used plastics films of per minute (plastic sheeting for farm use, mulch film), adopting overall dimensions is 3100 * 860 * 650mm(length * wide * height) cell body, with 8 supersonic generators, one side 4 interlock and be suspended on the cell body inwall.Each supersonic generator is made up of 6 commercial ultrasonic transducers, and each ultrasonic transducer is 50W, and frequency ν is 20000 hertz.Cleaning fluid adopts water.It is φ 2 woven wires of 10 * 10mm that screen adopts the hole.Adopt the method for light transmittance to measure, will tens times with the utility model waste or used plastics film cleaning machine than with the mechanical cleaning performance of stirring formula.Waste or used plastics diaphragm after the utility model cleaning machine cleans, drying is not handled directly to send in the wet plastic foil granulating extruder and is processed, and can directly obtain the regenerated plastics goods.Cleaning fluid after the use can be used for the prerinse of plastic foil.

Claims

1, a kind of waste or used plastics film supersonic wave cleaning machine is made of cell body and supersonic generator, it is characterized in that:

(1) cell body is a square box shape, and the filter washing water inlet is located at the cell body front portion, and discharging opening is located on the cell body rear wall;

(2) bottom in the cell body is provided with screen;

(3) supersonic generator is located on the both sides inwall of cell body.

2, supersonic wave cleaning machine according to claim 1 is characterized in that:

(1) anterior filter washing water inlet is provided with floating plate in the position afterwards in cell body;

(2) be provided with flap before the rear portion discharging opening in cell body.

3, supersonic wave cleaning machine according to claim 1 is characterized in that: be arranged with vertical baffle in parallel between the top supersonic generator in cell body, there is bracing frame the baffle plate both sides, and bracing frame is connected with the top of cell body both sides inwall.

4, supersonic wave cleaning machine according to claim 1 is characterized in that: the supersonic generator that is located at cell body both sides inwall preferably is staggered arranged distribution.

5, supersonic wave cleaning machine according to claim 1 is characterized in that: supersonic generator is made of housing and ultrasonic transducer, and ultrasonic transducer is inverted triangle and is arranged in the housing.