CN212791338U

CN212791338U - Incomplete membrane straw separating centrifuge

Info

Publication number: CN212791338U
Application number: CN202021175900.7U
Authority: CN
Inventors: 徐亦胜; 燕存钦
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-03-26
Anticipated expiration: 2030-06-23

Abstract

The utility model provides a plastic film residue straw separating centrifuge, including the drum sieve, the power portion is connected with the drive to the drum sieve rotates, feed arrangement is connected to the drum sieve feed end, and discharging device is connected to the discharge end, feed arrangement's first pay-off fan inhales the plastic film residue after will smashing and straw through inhaling the material pipeline, and rethread feed pipeline blows into in the drum sieve, the drum sieve rotates, and small straw falls into the sieve end rapidly and passes through the screen cloth and fall down, and when plastic film residue in the drum sieve constantly concentrates on nonrotating plastic film residue and gathers the membrane device under the effect of the spiral propulsion blade of the mobile air that first pay-off fan produced and drum sieve, send into next station by discharging device again. The rotary screen is combined with the first feeding fan and the second feeding fan, so that the straw and the residual film can be efficiently separated, more than 95% of the straw in the residual film is removed, the residual film granulation purity is improved, the service life of the regenerated particle filter screen is prolonged, and the yield is increased by more than 20%.

Description

Incomplete membrane straw separating centrifuge

Technical Field

The utility model belongs to farmland plastic film recovery processing machinery, concretely relates to incomplete membrane straw separating centrifuge.

Background

A revolution in agricultural development in China in the 90 s is that farmland mulching films are used, so that crop yield is doubled, quality is improved, but the mulching films are disposable, in autumn and spring every year, recovered residual films are piled up like mountains and are all burnt and buried in soil, air quality is seriously affected, land resources are damaged, the main reason is that most of the residual films are below 0.008 mm, the content of soil can reach 20:1 at most, and the problems that straw and the residual films are mixed together and how to separate are solved, so far, no ideal technology and equipment are available. The traditional treatment process causes cost loss and even door closing of many enterprises, so nobody is willing to treat residual films, a large amount of residual films seriously damage the natural environment of China every year, and the recovery and reutilization of the residual films become problems to be solved urgently in the current farmland development.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects and deficiencies of the prior art, the embodiment of the utility model provides a residual film straw separator. The technical scheme is as follows:

the utility model provides a residual film straw separator, which is characterized by comprising a drum screen, wherein the drum screen is connected with a power part to drive the drum screen to rotate, the feed end of the drum screen is connected with a feed device, and the discharge end of the drum screen is connected with a discharge device;

the feeding device comprises a material suction pipeline, the material suction pipeline is connected with a feeding pipeline through a first feeding fan, and the feeding pipeline is connected with one end of the rotary screen;

a spiral propelling blade is arranged in the drum screen, and when the drum screen rotates, the spiral propelling blade rotates along with the drum screen to push the residual film in the drum screen to move to the discharging device;

the discharging device comprises a discharging pipeline, the discharging pipeline is connected with a discharging port of the residual film collecting device, a feeding port of the residual film collecting device is connected with the other end of the rotary screen, the residual film collecting device and the rotary screen are of a split structure and are fixedly arranged, the caliber of the discharging port of the residual film collecting device is smaller than that of the feeding port of the residual film collecting device, and the discharging pipeline is connected with a feeding pipeline through a second feeding fan;

the first feeding fan sucks crushed residual films and straws through a material sucking pipeline and blows the crushed residual films and straws into the rotary screen through a feeding pipeline, the rotary screen rotates, the straws with small size quickly fall into the screen bottom and fall through the screen, and when the residual films in the rotary screen are continuously concentrated in the non-rotating residual film collecting device under the action of flowing air generated by the first feeding fan and the spiral propelling blades of the rotary screen, the second feeding fan sucks the residual films concentrated at the discharge port of the residual film collecting device through a discharge pipeline and then sends the residual films into the next station through the feeding pipeline.

Preferably, in the above technical solution, the power unit includes a driving mechanism and a supporting mechanism provided outside the drum screen.

Preferably, the driving mechanism comprises a driving motor and a gear connected to the end of a shaft of the driving motor, and a gear ring is fixedly arranged on the outer side of the drum screen and meshed with the gear;

the supporting mechanisms are roller supporting guide wheels which are arranged at two ends of the rotary screen in a pair respectively, and the roller supporting guide wheels are symmetrically distributed along the front and the back of the rotary screen.

Preferably, in the technical scheme, the aperture position of the discharge hole of the residual film gathering device is lower than the aperture position of the feed hole of the residual film gathering device.

The utility model provides a plastic film residue straw separating centrifuge, first feeding fan inhales the plastic film residue after will smashing and straw through inhaling the material pipeline, and rethread charge-in pipeline blows into the drum sieve in, the drum sieve rotates, and small straw falls into the sieve end rapidly and falls down through the screen cloth, and when the plastic film residue in the drum sieve constantly concentrated on irrotational plastic film residue and gather the membrane device under the effect of the mobile air that first feeding fan produced and the helical propulsion blade of drum sieve when, second feeding fan will concentrate on the plastic film residue that the membrane device discharge gate is gathered through ejection of compact pipeline and inhale, send into next station by the feeding pipeline again.

The rotary screen is combined with the first feeding fan and the second feeding fan, so that the straw and the residual film can be efficiently separated, more than 95% of the straw in the residual film is removed, the residual film granulation purity is improved, the service life of the regenerated particle filter screen is prolonged, and the yield is increased by more than 20%.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a high-pressure cleaning system for plastic film residue soil removal and separation provided in the present embodiment;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic view of a residual film soil remover provided in the present embodiment;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a schematic view of a straw separator for residual film provided in the present embodiment;

FIG. 6 is a top view of FIG. 5;

FIG. 7 is a schematic view of a high-pressure washing apparatus for residual films provided in the present embodiment;

fig. 8 is a top view of fig. 7.

Reference numerals: 1-residual film soil removing machine, 11-feeding box, 12-first guide wheel, 13-second guide wheel, 14-third guide wheel, 15-cam, 16-fence type annular conveying belt, 17-main driving wheel, 18-bracket, 181-bracket plate, 19-first driving motor, 2-residual film straw separator, 21-suction pipeline, 22-first feeding fan, 23-feeding pipeline, 24-drum sieve, 241-drum feeding end, 242-drum discharging end, 25-second driving motor, 251-gear, 26-spiral propelling blade, 27-drum supporting guide wheel, 28-residual film collecting disc, 29-gear ring, 210-screen mesh, 211-discharging pipeline, 212-second feeding fan, 213-a feeding pipeline, a 3-residual film straw separator, a 31-water storage tank, 310-a residue storage basket, a 32-composite water tank, 33-a high-pressure water spray head, 34-a straw residual film shunting shuttle, 35-a residual film material lifting machine, 351-a spray opening, 36-a high-pressure water pump, 37-a water flow pump, 38-a third driving motor, a 39-V-shaped guide plate, 310-a residue storage basket, a 4-residual film crusher, a 5-friction cleaning machine, a 51-water pump, a 6-a conveying device and a 7-b conveying device.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, embodiments of the present invention will be described in further detail with reference to fig. 1 to 8.

As shown in fig. 5-6, the residual film straw separator 2 provided by the present invention comprises a feeding device, a drum screen and a discharging device, wherein the feeding device comprises a material suction pipeline 21, a first material feeding fan 22 and a material feeding pipeline 23;

the drum screen 24 is provided with a drum feeding end 241 and a drum discharging end 242;

the discharging device comprises a discharging pipeline 211, a second feeding fan 212 and a feeding pipeline 213.

The drum screen 24 comprises a screen 210, a spiral propelling blade 26 is arranged in the drum screen 24, the discharge end 242 of the drum is provided with a residual film gathering device 28, the residual film gathering device 28 and the drum screen 24 are of a split structure, and a discharge pipeline 211 of the discharge device is connected with the residual film gathering disc 28;

and a driving mechanism and a supporting mechanism are arranged on the outer side of the rotary screen 24.

The driving mechanism comprises a second driving motor 25 and a gear 251 connected to the end part of the shaft of the second driving motor, and a gear ring 29 fixedly arranged on the outer side of the rotary screen is meshed with the gear 251.

The supporting mechanism is a pair of roller supporting guide wheels 27 which are arranged at two ends of the drum screen 24, and the roller supporting guide wheels 27 are symmetrically distributed along the front and back of the drum screen 24.

As shown in fig. 1-2, the residual film and straw separator 2 is a part of a residual film soil-removing and straw-separating high-pressure cleaning system, which comprises a residual film soil-removing machine 1, a residual film crusher 4, a residual film and straw separator 2, a friction cleaning machine 5 and a residual film high-pressure washing device 3;

the residual film soil removing machine 1 is connected with the feeding hopper of the residual film crusher 4 through a conveying device a; the material suction pipeline 21 is connected with a discharge hopper of the residual film crusher 4; the feeding pipeline 23 is connected with the feeding end 241 of the drum screen; the discharge pipe 211 is connected to the trommel discharge end 242; the feeding pipeline 213 is connected with a cyclone type charging barrel of the friction cleaning machine 5; the discharge port of the friction cleaning machine 5 is connected with the composite water tank 32 of the residual film straw separator 3 through a b conveying device.

The conveying device a and the conveying device b are both linear conveying belts.

As shown in fig. 3-4, the residual film soil removing machine comprises a feeding box 11, a bracket 18 is fixedly connected with the bottom of the feeding box, the bracket 18 comprises bracket plates 181 which are symmetrically arranged in front and back, and a feeding device is arranged in the middle of the bracket 18.

The feeding device comprises a first driving motor 19, a first guide wheel 12, a second guide wheel 13 and a third guide wheel 14, a main driving wheel 17 is arranged on the first driving motor 19, an annular fence type conveying belt 16 is arranged on the first guide wheel 12, the second guide wheel 13, the third guide wheel 14 and the main driving wheel 17, and two cams 15 are further arranged in the middle of the fence type annular conveying belt 16 and are arranged at intervals along the fence type annular conveying belt 16.

The residual film put into the feeding box 11 is conveyed while being vibrated through the 2-level cam vibration 15 and the fence conveying belt 16, a large amount of soil and a small amount of straws fall down from the gaps of the fence, 70% of the soil and the small amount of straws in the residual film can be removed, and the first separation of the residual film and the straws is realized.

As shown in fig. 7-8, the plastic film residue high-pressure washing device 3 comprises a water storage tank 31, a composite water tank 32, a straw plastic film residue shunt shuttle 34, a slag storage basket 310 and a plastic film residue lifter 35, wherein the plastic film residue lifter 35 is provided with a spraying port 351, the composite water tank 32 is arranged in the water storage tank 31, a high-pressure water nozzle 33 is arranged in the composite water tank 32, the straw plastic film residue shunt shuttle 34 is of an airfoil-shaped structure, one surface of the straw plastic film residue shunt shuttle is a plane, the other surface of the straw plastic film residue shunt shuttle is a streamline circular arc, the plane is upward, the circular arc surface is downward arranged in the composite water tank 32, the position is 2-3cm away from the water surface, the two slag storage baskets 310 are flush with the straw plastic film residue;

a V-shaped guide plate 39 is arranged on the plane of the straw residual film shunting shuttle 34, the direction of the V-shaped guide plate 39 is the same as that of water flow, and the sharp corner of the V shape faces the water inlet direction;

the high-pressure water spray head 33 is connected with the high-pressure water pump 36 through a pipeline; the water flow pump 37 is connected to the water storage tank 31 and the composite water tank 32 through pipes.

The plastic film residue lifter 35 has a third drive motor 38.

The residual membrane soil removal separation high-pressure cleaning system has the working process that:

1. the loader puts the residual film into a feeding box 11 of the residual film soil removing machine 1, more than 70% of soil and a small part of straws in the residual film are removed through the vibration of two cams 15 and the conveying of a fence conveying belt 16, and the residual film is sent into a residual film crusher 4 through a conveying device a to be crushed;

2. the crushed residual films and straws are sent into a residual film and straw separator 2 through a material suction pipeline 21 by a first feeding fan 22 and blown into a roller feeding end 241, a second driving motor 25 drives a gear ring 29 to enable a rotary screen 24 to rotate, the straws are small in size and can quickly fall into the bottom of the rotary screen 24 and fall through a screen 210 according to the principle that different substances move in different tracks in the air, the residual films floating in the rotary screen 24 are continuously concentrated at the bottom of a non-rotating residual film collecting disc 28 at a roller discharging end 242 under the action of flowing air generated by the first feeding fan 22 and a spiral pushing blade 26 in the rotary screen 24, and the residual films concentrated at the bottom of the residual film collecting disc 28 are sucked by a second feeding fan 212 through a discharging pipeline 211 and then are sent into a cyclone type charging barrel mounted on the residual film and straw separator 5 through the feeding pipeline 213;

3. the residual film enters a friction cleaning machine 5, meanwhile, clear water in the sedimentation tank is sent into the friction cleaning machine 5 by a water pump 51 to carry out friction cleaning on the residual film, and the residual film after friction cleaning is sent into a composite water tank 32 of a residual film straw separator 3 by a b conveying device 7;

4. the residual film cleaned by friction is sent to the composite water tank 32, and simultaneously, the water in the water storage tank 31 is sent to the composite water tank 32 by the water flow pump 37 for recycling. Water flow and residual films pass through the lower part of the tens of high-pressure spray heads 33, the residual films roll up and down to flow to the straw residual film shunting shuttle 34 under the washing of the high-pressure water flow, and the effect of washing the residual films by the high-pressure water flow is more than 2 times better than that of the traditional shifting wheel rinsing, namely the effect of washing the residual films by the shifting wheel rinsing with a 10-meter long water tank is the same as that of washing the residual films by the high-pressure water flow with a 5-meter long water tank. The straw plastic film residue shunt shuttle 34 is designed like that one side of an airplane wing is a plane, the other side of the airplane wing is a streamline circular arc, 2 guide plates 39 forming a V shape are arranged on the plane, the guide plates are upwards arranged by the plane, the arc is downwards inversely arranged at the position 2 to 3 centimeters away from the water surface of the composite water tank 32, the water flow is divided into an upper part and a lower part, and the upper water flow passes through the upper plane of the straw plastic film residue shunt shuttle 34 and flows out of the composite water tank 32 along the V-shaped guide plates 39 to enter the slag storage baskets 310 arranged at the. The lower water flow passes through the lower arc surface of the straw residual film shunting shuttle 34, the flowing speed of the lower water flow is accelerated under the action of the arc surface, and certain negative pressure is generated with the upper water flow, according to the difference of buoyancy of the straw and the residual film in water, the straw floating on the surface of the water flow flows into the residue storage basket 310 along with the water flow with the depth of 2-3cm on the straw residual film shunting shuttle 34 along the V-shaped guide plate 39, the residual film floating below the water flow flows into the residual film lifter 35 through the lower arc surface of the straw residual film shunting shuttle 34 under the action of the water negative pressure of the straw residual film shunting shuttle 34, the residual film lifter 35 lifts the residual film out of the water and sprays out of the spraying port 351 under the driving of the third driving motor 38, and the high-pressure water cleaning of the residual film and the secondary separation of the straw are completed. The whole process of removing soil from the residual film, separating straw and washing with high-pressure water is completed.

The incomplete membrane process the utility model provides a incomplete membrane removes native separation high pressure cleaning system and handles the back, the advantage has following three:

firstly, the residual film soil removing machine 1 can remove more than 70% of soil in the residual film, reduces the abrasion of the residual film crusher 4, doubles the service life of the crushing blade, reduces the maintenance intensity and improves the working efficiency.

And secondly, the residual film straw separator 2 can remove more than 95% of straws in the residual film, so that the residual film granulation purity is improved, the service life of the regenerated particle filter screen is prolonged, and the yield is improved by more than 20%.

And thirdly, the high-pressure water flow flushing process of the residual film straw separator 3 reduces the content of the particle ash powder recovered from the residual film and re-granulated by more than 3 percent, obviously improves the particle transparency and tensile strength, and can improve the selling price per ton by more than 100 yuan.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The residual film straw separator is characterized by comprising a drum screen, wherein the drum screen is connected with a power part to drive the drum screen to rotate, the feed end of the drum screen is connected with a feeding device, and the discharge end of the drum screen is connected with a discharging device;

2. The plastic residue straw separator as claimed in claim 1, wherein the power part comprises a driving mechanism and a supporting mechanism arranged outside the drum screen.

3. The plastic film residue straw separator as claimed in claim 2, wherein the driving mechanism comprises a driving motor and a gear connected to the end of a shaft of the driving motor, and a gear ring is fixedly arranged on the outer side of the drum screen and meshed with the gear;

4. The residual film straw separator as claimed in claim 1, wherein the position of the discharge port of the residual film collecting device is lower than the position of the feed port of the residual film collecting device.