CN211941627U - Waste plastic circulating cleaning equipment and waste plastic cleaning and recycling production line - Google Patents

Abstract

The utility model discloses an old and useless plastics circulation cleaning equipment and adopt this old and useless plastics circulation cleaning equipment's old and useless plastics washing recovery production line, including homogenization pan feeding spiral, a sand wash passageway for receiving the material from homogenization pan feeding spiral and a sand water cyclic utilization device that is used for receiving sand water medium from the sand wash passageway, the sand wash passageway is including many scavenge pipes that communicate in proper order, many scavenge pipes all embed there is stirring conveying rod, and to two adjacent scavenge pipes, the scavenge pipe that is in the front position can be through stirring conveying rod with the material stirring and carry to the scavenge pipe that is in the back position, sand water cyclic utilization device is used for making purification treatment with received sand water medium, and carry sand material and moisture after will handling to homogenization pan feeding spiral and sand wash passageway respectively. The utility model is used for solve among the prior art destroy plastics easily, water pollution is serious, can't realize shortcomings such as water cyclic utilization.

Description

Waste plastic circulating cleaning equipment and waste plastic cleaning and recycling production line

Technical Field

The utility model relates to a discarded object washs recovery technology in the environmental protection trade, especially relates to a waste plastic circulation cleaning equipment and adopts this waste plastic circulation cleaning equipment's waste plastic to wash recovery production line.

Background

Due to violent application of plastics, domestic and foreign recovery infrastructures cannot be followed up, so that the marine pollution of the waste plastics is serious. With the increasing importance of environmental protection, the problem of recycling waste plastics has risen to the national strategic problem, so that an automatic, intelligent and low-cost waste plastic cleaning and recycling system is very important. The process flow of the existing waste plastic cleaning and recycling production line is roughly divided into four parts, namely a rough washing stage, a fine washing stage, a secondary washing stage and a winnowing, spin-drying and packaging stage. The plastic cleaning equipment used in the fine cleaning stage is a key module in a plastic cleaning and recycling production line, the existing plastic cleaning and recycling process on the market at home and abroad generally adopts high-speed centrifugal cleaning, a cleaning agent is added into a hot washing tank, and then corresponding blade beating force is applied to materials through high-speed rotation speed so as to realize the cleaning effect on plastic sheets.

However, the above plastic cleaning process has the following disadvantages: firstly, high-speed centrifugal cleaning can damage plastics due to high rotating speed and high hitting force on materials, and even can be ground into powder when the plastics are serious. Secondly, the addition of the cleaning agent causes water pollution, which is not in line with the requirement of environmental protection. Thirdly, the washing water cannot be recycled, the sewage discharge amount is large, and water resource waste and water pollution are caused again.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a waste plastic circulation cleaning equipment and adopt this waste plastic circulation cleaning equipment's waste plastic to wash recovery production line for solve among the prior art destroy plastics easily, water pollutes seriously, can't realize shortcomings such as water cyclic utilization.

The utility model discloses an old and useless plastics circulation cleaning equipment adopts following technical scheme to realize:

the utility model provides a waste plastic circulation cleaning equipment, includes homogenization pan feeding spiral, is used for following the sand washing passageway that homogenization pan feeding spiral received the material and be used for following the sand water cyclic utilization device that sand washing passageway received sand aqueous medium, the sand washing passageway is including many purge tubes that communicate in proper order, many purge tubes all embed have stirring conveying rod, and to two adjacent purge tubes, the purge tube that is in the front can be through stirring conveying rod with the material stirring and carry to the purge tube that is in the back position, sand water cyclic utilization device is used for making purification treatment with received sand aqueous medium to sand material and moisture after will handling do not carry to homogenization pan feeding spiral with the sand washing passageway.

Further, the stirring and conveying rod comprises a main shaft, and a helical blade and a stirring blade which are alternately arranged on the main shaft.

Furthermore, the purge tube that is in the head among many purge tubes is provided with the pan feeding mouth of sand washing passageway, all the other each purge tubes all are provided with the input port that is used for rather than preceding purge tube intercommunication, the purge tube that is in the end position among many purge tubes is provided with the discharge gate of sand washing passageway, all the other each purge tubes all are provided with the delivery outlet that is used for with its next purge tube intercommunication.

Furthermore, a communicating pipe fitting is connected between two adjacent cleaning pipes, one end of the communicating pipe fitting is connected with an output port of the cleaning pipe at the front position, the other end of the communicating pipe fitting is connected with an input port of the cleaning pipe at the rear position, and the output port connected with the same communicating pipe fitting is higher than the input port connected with the same communicating pipe fitting.

Furthermore, two adjacent cleaning pipes and the communication pipe between the two cleaning pipes form a bent pipeline together, so that the sand washing channel forms a circuitous channel structure.

Furthermore, many cleaning tubes arrange along the horizontal direction and set up, just the delivery outlet reaches the input port sets up in the horizontal direction of cleaning tube, many cleaning tubes all are formed with the angle of rise relative to the horizontal plane, and two adjacent cleaning tube's the opposite direction of rise.

Further, old and useless plastics circulation cleaning equipment still includes the sand water small trough, many scavenge pipes comprise an at least sand milling spiral and an at least separation spiral, the top of separation spiral is provided with the shower nozzle, and the bottom is provided with the sieve mesh to make the sand aqueous medium can pass through the sieve mesh gets into the sand water small trough, the sand water small trough is located the top of sand water cyclic utilization device, so that the sand water cyclic utilization device can pass through the sand water small trough receives the sand aqueous medium.

Furthermore, the sand-water recycling device comprises a sand collecting box for receiving sand-water media, a dirt collecting box arranged on one side of the sand collecting box, a rotational flow aerator arranged in the sand collecting box and a scraping plate mechanism arranged at the top of the sand collecting box, wherein the scraping plate mechanism is used for scraping impurities in the sand-water media to the dirt collecting box.

Furthermore, the sand-water recycling device further comprises a sand outlet screw connected to the bottom of the sand collecting box, a sand-water pump communicated with the sand collecting box, and an air floatation machine communicated with the sewage collecting box, wherein the sand outlet screw is used for conveying sand materials to the homogenizing feeding screw, the sand-water pump is used for pumping water in the sand collecting box to the sand washing channel, and the air floatation machine is used for receiving sewage from the sewage collecting box and conveying purified water to the sand washing channel.

The utility model discloses an old and useless plastics wash recovery production line adopts following technical scheme to realize:

the utility model provides a waste plastic washs recovery production line which characterized in that: comprises the waste plastic recycling cleaning equipment.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model provides an old and useless plastics circulation cleaning equipment and adopt this old and useless plastics circulation cleaning equipment's old and useless plastics to wash recovery production line increases effective washing stroke through the structural style of many scavenge pipe combinations, consequently adopts low rotational speed moving mode also can intensive mixing material and cleaning medium, through the combination of long stroke and low rotational speed, can guarantee that the stirring washs fully and can effectively avoid causing the drawback of destruction to plastics again. In addition, the cleaning medium adopts sand and water, so that the environment is not polluted, and the aim of environmental protection can be fulfilled; and the cyclic utilization device can purify the sand water, so that the sand water medium can be recycled, the sewage discharge can be effectively reduced, and the water resource waste is reduced.

Drawings

FIG. 1 is a front view of a waste plastic recycling cleaning apparatus according to an embodiment of the present invention;

FIG. 2 is a side view of the recycling cleaning apparatus for waste plastics shown in FIG. 1;

FIG. 3 is a top view of the recycling cleaning apparatus for waste plastics shown in FIG. 1;

FIG. 4 is a front view of a sand washing passage of the waste plastic recycling cleaning apparatus shown in FIG. 1;

FIG. 5 is a side view of the sand wash channel shown in FIG. 4;

FIG. 6 is a top plan view of the sand wash channel shown in FIG. 4;

FIG. 7 is a schematic view of the configuration of a stir bar used in the sand wash channel of FIG. 4;

FIG. 8 is a partial block diagram of the mixing and conveying rod of FIG. 7;

FIG. 9 is a front view of a sand water recycling device of the waste plastic recycling cleaning apparatus shown in FIG. 1;

FIG. 10 is a side view of the sand and water recycling apparatus shown in FIG. 9;

fig. 11 is a plan view of the sand-water recycling apparatus shown in fig. 9.

In the figure: 1. homogenizing a feeding screw; 2. sand washing the channel; 3. a sand-water recycling device; 21. cleaning the tube; 211. a stirring and conveying rod; 11. a bottom inlet; 12. a middle inlet; 13. a top outlet; 2111. a main shaft; 2112. a helical blade; 2113. a stirring blade; 2114. a reverse flight; 2115. pushing the plate; 22. a feeding port; 212. an input port; 23. a discharge port; 213. an output port; 24. a communicating pipe fitting; 4. a sand-water leakage groove; 31. a sand collecting box; 32. a sewage collection tank; 33. a rotational flow aerator; 34. a scraping plate mechanism; 35. producing a sand spiral; 36. a sand water pump; 37. an air flotation machine; 321. a drain flange; 311. a water outlet flange.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

The embodiment of the utility model provides a waste plastic circulation cleaning equipment and adopt this waste plastic circulation cleaning equipment's waste plastic to wash recovery production line, this waste plastic circulation cleaning equipment wash the recovery production line at waste plastic and can be used as the cleaning equipment in the fine purifiation stage, can solve among the prior art destroy plastics easily, water pollution is serious, can't realize shortcomings such as water cyclic utilization.

Refer to fig. 1-11. The waste plastic circulation cleaning equipment that this embodiment provided, including homogenization pan feeding spiral 1, be used for receiving the sand washing passageway 2 of material and be used for receiving sand water recycling device 3 of sand water medium from sand washing passageway 2 from homogenization pan feeding spiral 1, sand washing passageway 2 is including many scavenge pipes 21 that communicate in proper order, many scavenge pipes 21 all embed to have stirring conveying rod 211, and to two adjacent scavenge pipes 21, the scavenge pipe 21 that is in the front can be through stirring conveying rod 211 with the material stirring and carry to the scavenge pipe 21 that is in the back position, and sand water recycling device 3 is used for making purification treatment with the sand water medium that receives to sand material and the moisture after will handling are carried respectively to homogenization pan feeding spiral 1 and sand washing passageway 2. In particular, homogenizing feed screw 1 is provided with a bottom inlet 11, a middle inlet 12 and a top outlet 13.

Specifically, the stirring and conveying rod 211 comprises a main shaft 2111, and a helical blade 2112 and a stirring blade 2113 which are alternately arranged on the main shaft 2111, wherein the tail end of the main shaft 2111 is further provided with a reverse helical blade 2114, a push plate 2115 is arranged between the reverse helical blade 2114 and the most adjacent helical blade 2112, and the push plate 2115 can conveniently push out materials.

Specifically, the first cleaning pipe 21 of the plurality of cleaning pipes 21 is provided with a feeding port 22 of the sand washing channel 2, each of the remaining cleaning pipes 21 is provided with an input port 212 for communicating with the previous cleaning pipe 21, the last cleaning pipe 21 of the plurality of cleaning pipes 21 is provided with a discharge port 23 of the sand washing channel 2, and each of the remaining cleaning pipes 21 is provided with an output port 213 for communicating with the next cleaning pipe 21.

Specifically, the communication pipe 24 is connected between two adjacent cleaning pipes 21, one end of the communication pipe 24 is connected to the output port 213 of the cleaning pipe 21 located at the front position, and the other end is connected to the input port 212 of the cleaning pipe 21 located at the rear position. The output port 213 connected to the same communicating pipe member 24 is higher than the input ports 212 connected thereto, that is, for the adjacent two cleaning pipes 21, the output port 213 of the front pipe is higher than the input port 212 of the rear pipe, so that the material can smoothly enter the rear pipe from the front pipe. Specifically, the communication pipe 24 is a pipe flange.

Specifically, two adjacent cleaning pipes 21 and the communication pipe 24 therebetween form a bent pipeline together, so that the sand washing channel forms a circuitous channel structure, and the circuitous channel structure can increase the effective cleaning stroke and reduce the occupied space.

Specifically, in order to make the output port 213 connected to the same communication pipe member 24 higher than the input port 212 connected thereto, the cleaning pipe 21 of the present embodiment may be configured such that: the plurality of cleaning pipes 21 are arranged in a horizontal direction, the output port 213 and the input port 212 are arranged in the horizontal direction of the cleaning pipes 21, the plurality of cleaning pipes 21 form a rising angle with respect to the horizontal plane, and the rising directions of two adjacent cleaning pipes 21 are opposite.

Particularly, the waste plastic circulation cleaning equipment of this embodiment still includes sand water leaking groove 4, and many purge tubes 21 comprise at least one sand milling spiral and at least one separation spiral, and the top of separation spiral is provided with the shower nozzle, and the bottom is provided with the sieve mesh (its diameter size is greater than sand and is less than the plastic sheet) to make the sand aqueous medium can get into sand water leaking groove 4 through the sieve mesh, sand water leaking groove 4 is located the top of sand water cyclic utilization device 3, so that sand water cyclic utilization device 3 can receive the sand aqueous medium through sand water leaking groove 4. Specifically, in the present embodiment, the cleaning pipes 21 are eight in total, and the first six are sanding screws and the last two are separation screws.

Specifically, the sand-water recycling device 3 includes a sand-collecting box 31 for receiving the sand-water medium, a dirt-collecting box 32 provided on one side of the sand-collecting box 31, a cyclone aerator 33 provided inside the sand-collecting box 31, and a scraper mechanism 34 provided on the top of the sand-collecting box 31, the scraper mechanism 34 being for scraping the impurities in the sand-water medium to the dirt-collecting box 32.

The sand-water recycling device 3 further comprises a sand outlet screw 35 connected to the bottom of the sand collecting box 31, a sand-water pump 36 communicated with the sand collecting box 31, and an air floatation machine 37 communicated with the sewage collecting box 32, wherein the sand outlet screw 35 is used for conveying sand materials to the homogenizing feeding screw 1, the sand-water pump 36 is used for pumping water in the sand collecting box 31 to the sand washing channel 2, and the air floatation machine 37 is used for receiving sewage from the sewage collecting box 32 and conveying purified water to the sand washing channel 2.

Specifically, the cyclone aerator 33 is arranged in the sand collection box 31 in a hoisting manner and has a certain distance with the bottom of the sand collection box 31; the sand outlet screw 35 is arranged obliquely, and the downward end of the sand outlet screw is connected with the bottom of the sand collecting box 31. The cyclone aerator 33 has the main function of making sewage and sand perform cyclone motion, plays a role in washing sand, and can bring suspended garbage, oil dirt and other impurities in the sand to the water surface.

Specifically, the sewage collection tank 32 is provided with a sewage discharge port flange 321 for connection with a sewage pump attached to the air flotation machine 37, thereby conveying sewage to the air flotation machine 37; the middle part of the sand collecting box 31 is provided with a water outlet flange 311, and the water inlet flange of the sand water pump 36 is connected with the water outlet flange 311 through a water pipe.

The process flow of the embodiment is as follows: homogenizing feeding screw conveying mixed material → sanding screw stirring and conveying material of sanding channel → separating screw separating sand water → obtaining clean plastic sheet and recycling sand water

The method comprises the following specific steps:

(a) firstly, the crushed waste plastic sheets, sand and water are mixed and conveyed to a feeding port 22 of a sand washing channel 2 through a homogenizing feeding screw 1.

(b) The variable frequency speed regulating motor drives the stirring conveying rod 211 to rotate at a low rotating speed, mixed materials of waste plastic sheets, sand and water in the six sanding screws are continuously pushed forward under the driving of the spiral blades 2112, and meanwhile, full abrasive cleaning is realized under the rolling and stirring of the stirring blades 2113.

(c) Because the bottoms of the last two spirals are provided with sieve holes and the tops of the two separation spirals are provided with nozzles for high-pressure water spraying, the sand water is effectively separated and leaked into the sand water leakage groove 4 and collected into the sand collecting box 31 of the sand water recycling device 3; the plastic sheet is further pushed forward by the helical blade 2112, and finally a clean plastic sheet is obtained and discharged through the discharge port 23.

(d) The sand water recycling comprises two parts: firstly, the sand collected in the sand collecting box 31 is continuously deposited at the bottom of the sand collecting box 31, and is transported to the middle inlet 12 of the homogenizing feeding screw 1 by the sand outlet screw 35, and then is transported to the feeding port 22 by the homogenizing feeding screw 1 to realize the recycling of the sand. Secondly, the water collected in the sand collecting box 31 flows away in two ways, one way is that the cleaning water is dirty, the scraping plate mechanism 34 can scrape suspended garbage, oil dirt and other impurities into the sand collecting box 32, the sand is pumped into the air floatation machine 37 by the sewage pump to be treated, and then the sand returns to the inlets of the nozzles of the two separation screws to be sprayed; and the other way is that a sand water pump 36 pumps cleaner water to the feed inlet 22 at an upper water level outlet in the sand-collecting box 31 for recycling.

The utility model provides an old and useless plastics circulation cleaning equipment and adopt this old and useless plastics circulation cleaning equipment's old and useless plastics to wash recovery production line increases effective washing stroke through the structural style of many scavenge pipes 21 combinations, consequently adopts low rotational speed moving mode also can the intensive mixing material, through the combination of long stroke and low rotational speed, can guarantee that the stirring washs fully can effectively avoid again causing the drawback of destruction to plastics. In addition, the cleaning medium adopts sand and water, so that the environment is not polluted, and the aim of environmental protection can be fulfilled; and the cyclic utilization device can purify the sand water, so that the sand water medium can be recycled, the sewage discharge can be effectively reduced, and the water resource waste is reduced.

To achieve a combination of long stroke and low rotational speed, it must be ensured that the material and the cleaning medium can pass smoothly through the individual cleaning tubes 21 of the sand channel 2, two points then having to be ensured: firstly, the materials can be stirred and transported to the position of the output port 213 or the discharge port 23 in the same cleaning pipe 21, that is, effective stirring and transportation in the pipe are ensured; secondly, guarantee that the material can smoothly pass on to the back pipe from the head pipe, guarantee the effective transportation between the pipe promptly.

Because the puddler of prior art is mainly applicable to high rotational speed centrifugal cleaning, its self has the lower problem of conveying efficiency, when its low rotational speed operation, often can not effectively carry the material, especially is not fit for long stroke transport material, and the material of pipe tail end blocks easily moreover. In the stirring and conveying rod 211 of the embodiment, the main shaft 2111 is alternately provided with the helical blades 2112 and the stirring blades 2113, so that not only can full stirring and cleaning be ensured, but also materials can be effectively conveyed in the pipe, namely, effective stirring and conveying in the pipe can be realized; and the end of the stirring and conveying rod 211 is provided with a reverse spiral piece 2114, which can prevent the material from blocking, and a push plate 2115 is arranged between the reverse spiral piece 2114 and the nearest spiral blade 2112, which can conveniently and smoothly transfer the material to the next cleaning pipe 21, namely, realize the effective transportation between pipes.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (10)

1. The utility model provides a waste plastic circulation cleaning equipment which characterized in that: including homogenization pan feeding spiral, be used for following the sand washing passageway that homogenization pan feeding spiral received the material and be used for following the sand water cyclic utilization device that sand washing passageway received sand aqueous medium, the sand washing passageway is including many purge tubes that communicate in proper order, many purge tubes all embed there is the stirring conveying rod, and to two adjacent purge tubes, the purge tube that is in the front position can be through stirring conveying rod with the material stirring and carry to the purge tube that is in the back position, sand water cyclic utilization device is used for making purification treatment with the sand aqueous medium received to sand material and the moisture after will handling do not carry to homogenization pan feeding spiral with the sand washing passageway.

2. The recycling cleaning equipment of waste plastics as claimed in claim 1, characterized in that: the stirring and conveying rod comprises a main shaft, and a helical blade and a stirring blade which are alternately arranged on the main shaft.

3. The recycling cleaning equipment of waste plastics as claimed in claim 1, characterized in that: the cleaning pipe at the head position in the plurality of cleaning pipes is provided with a feeding port of the sand washing channel, all the other cleaning pipes are provided with input ports communicated with the previous cleaning pipe, the cleaning pipe at the last position in the plurality of cleaning pipes is provided with a discharge port of the sand washing channel, and all the other cleaning pipes are provided with output ports communicated with the next cleaning pipe.

4. The recycling cleaning apparatus of waste plastics as claimed in claim 3, characterized in that: and a communicating pipe fitting is connected between every two adjacent cleaning pipes, one end of the communicating pipe fitting is connected with an output port of the cleaning pipe at the front position, the other end of the communicating pipe fitting is connected with an input port of the cleaning pipe at the rear position, and the output port connected with the same communicating pipe fitting is higher than the input port connected with the same communicating pipe fitting.

5. The recycling cleaning apparatus of waste plastics as claimed in claim 4, characterized in that: two adjacent cleaning pipes and the communication pipe between the two cleaning pipes jointly form a bent pipeline, so that the sand washing channel forms a circuitous channel structure.

6. The recycling cleaning apparatus of waste plastics as claimed in claim 5, characterized in that: many cleaning tubes arrange along the horizontal direction and set up, just the delivery outlet reaches the input port sets up in the horizontal direction of cleaning tube, many cleaning tubes all are formed with the angle of rise relative to the horizontal plane, and the opposite direction of rise of two adjacent cleaning tubes.

7. The recycling cleaning apparatus of waste plastics as claimed in claim 4, characterized in that: waste plastic circulation cleaning equipment still includes the sand water small trough, many scavenge pipes comprise an at least sand milling spiral and an at least separation spiral, the top of separation spiral is provided with the shower nozzle, and the bottom is provided with the sieve mesh to make the sand water medium can pass through the sieve mesh gets into the sand water small trough, the sand water small trough is located the top of sand water cyclic utilization device, so that the sand water cyclic utilization device can pass through the sand water small trough receives the sand water medium.

8. The recycling cleaning plant of waste plastics according to any of claims 1 to 7, characterized in that: the sand-water recycling device comprises a sand collecting box for receiving sand-water media, a dirt collecting box arranged on one side of the sand collecting box, a rotational flow aerator arranged in the sand collecting box and a scraping plate mechanism arranged at the top of the sand collecting box, wherein the scraping plate mechanism is used for scraping impurities in the sand-water media to the dirt collecting box.

9. The recycling cleaning apparatus of waste plastics as claimed in claim 8, characterized in that: the sand water recycling device further comprises a sand outlet screw connected to the bottom of the sand collecting box, a sand water pump communicated with the sand collecting box and an air floatation machine communicated with the sewage collecting box, wherein the sand outlet screw is used for conveying sand materials to the homogenizing feeding screw, the sand water pump is used for pumping water in the sand collecting box to the sand washing channel, and the air floatation machine is used for receiving sewage from the sewage collecting box and conveying purified water to the sand washing channel.

10. The utility model provides a waste plastic washs recovery production line which characterized in that: comprising a plant for recycling and cleaning waste plastics according to any of claims 1 to 9.

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