CN117583354A

CN117583354A - A kind of waste paper dry pulp production line

Info

Publication number: CN117583354A
Application number: CN202311653315.1A
Authority: CN
Inventors: 林文东
Original assignee: Fujian Dongsen Energy Saving Environmental Protection Technology Co ltd
Current assignee: Fujian Dongsen Energy Saving Environmental Protection Technology Co ltd
Priority date: 2021-04-02
Filing date: 2022-04-02
Publication date: 2024-02-23
Also published as: WO2022206989A1; CN115156248B; CN115156248A; CN112934927A

Abstract

The invention discloses a waste paper dry pulp production line. The waste paper is regenerated into pulp through the assembly line for reuse. The production is efficient and labor is saved. The use of an ozone sterilization system to generate anti-mold ozone can easily eliminate pathogenic bacteria and odors in the waste paper. Kill, it can adjust the humidity of the finished product of waste paper pulping, prevent sparks generated during the production process of waste paper pulping from causing fires, and protect the fibers of the finished product from being damaged as much as possible. It can be used in combination with anti-mildew agents to ensure the transportation of the finished product. No mildew will occur.

Description

Dry pulp production line for waste paper

The application is a divisional application of an invention patent with a mother application name of 'a waste paper dry pulp production line', and the application number of the mother application is 202210350129.X.

Technical Field

The invention relates to the technical field of waste paper recycling, in particular to a waste paper dry pulp production line.

Background

At present, the recovery rate of waste paper in China is 35%, the recovery rate of waste glass is only 13%, the recovery and utilization rate of electronic waste materials such as waste household appliances, computers and the like is lower, in recent years, the economy of China is developed at a high speed, people pay more and more attention to environmental protection, and the environmental protection awareness of people is also increased, so that the secondary utilization of various wastes is gradually attracting attention.

Waste paper, also called as 'secondary fiber', has extremely high consumption of various papers every year in China, and if the waste paper is abandoned, the waste paper can cause extremely waste of resources. The waste paper regeneration not only reduces the consumption of wood, but also obviously reduces the energy consumed in the production process of the regenerated paper, and the cost and the environmental treatment cost are relatively low, so that the waste paper regeneration attracts more and more attention.

In the production process, the existing production equipment of waste paper regenerated pulp does not disinfect and deodorize the pulp, and the produced pulp has peculiar smell and pathogenic bacteria. And the existing production of waste paper regenerated pulp has the defects of lower waste paper utilization rate, higher manual investment, time and labor waste and poor production efficiency.

Disclosure of Invention

The invention aims to provide a waste paper dry pulp production line, which solves the problems in the prior art, improves the production efficiency and the product quality of waste paper regenerated pulp production, and improves the waste paper utilization rate.

In order to achieve the above object, the present invention provides the following solutions: the invention provides a waste paper dry pulp production line, which comprises a crushing system, a paper-plastic separator, a cyclone hopper, a storage bin and an automatic packer, wherein the crushing system is used for crushing waste paper; the paper-plastic separator is characterized in that a feeding hole of the crushing system is connected with a first feeding conveyor, a discharging hole of the crushing system is connected to a feeding hole of the paper-plastic separator through a second feeding conveyor, a paper pulp discharging hole of the paper-plastic separator is connected to a feeding hole of a cyclone hopper through a centrifugal fan, a discharging hole at the bottom of the cyclone hopper is connected to a feeding hole at the top of a storage bin, and a discharging hole at the bottom of the storage bin is connected to a discharging hole of an automatic packer; the production line also comprises an ozone sterilization system, the ozone sterilization system comprises an ozone generator, an ozone dissolution barrel and a mildew-proof medicament dissolution barrel, an aeration head is arranged at the bottom of the inner side of the ozone dissolution barrel, an air outlet of the ozone generator is connected to the aeration head, the ozone dissolution barrel is connected with a water supplementing pipe, a liquid outlet of the ozone dissolution barrel is connected to a liquid inlet of the mildew-proof medicament dissolution barrel through a feed pump, a mildew-proof medicament input port is connected to the ozone dissolution barrel, and a liquid outlet of the mildew-proof medicament dissolution barrel is connected to a crushing system through a metering pump.

Preferably, the crushing system comprises at least one crusher, and if more than two crushers are provided, a discharge hole of the former crusher is connected with a feed hole of the latter crusher through a third feeding conveyor.

Preferably, the inside carousel that is driven by crushing motor that has of rubbing crusher, the periphery of carousel is fixed with a plurality of movable knife through the bolt interval along the circumferencial direction, be fixed with a plurality of stationary knives along the circumferencial direction on the inner wall of rubbing crusher, crushing motor drives the carousel rotation, and movable knife and stationary knife cooperation are sheared into the piece with waste paper.

Preferably, the first feeding conveyor is a conveyor belt, and a plurality of partition boards are arranged on the conveyor belt at intervals along the transmission direction of the conveyor belt; the second feeding conveyor and the third feeding conveyor are respectively spiral feeding machines.

Preferably, an air inlet of the ozone generator is connected with an air filter.

Preferably, the waste paper dry pulp production line further comprises a bale breaker positioned at the front end of the crushing system, the bale breaker comprises a box body, a feeding hole is formed in the top of the box body, a discharging hole is formed in the bottom of the box body, two knife rolls are arranged in parallel at intervals in the box body and are driven by respective gear motors to reversely rotate, movable blades which are arranged in a staggered mode are fixed on the two knife rolls respectively, and static blades which are arranged in a staggered mode with the movable blades on the two knife rolls are arranged on two opposite side walls of the box body.

Preferably, the box comprises two auxiliary boxes, two knife rolls are respectively connected to two different auxiliary boxes in a rotating mode, the spliced parts on two sides of the two auxiliary boxes are spliced together in an L shape, the spliced parts on two sides of the two auxiliary boxes are respectively provided with more than two groups of fixed hole sites, and when the spliced parts on two sides of the two auxiliary boxes are mutually shifted, the corresponding fixed hole sites are selected and locked and fixed through bolts.

Preferably, the top of the cyclone hopper is connected with a double cyclone spray tower, the double cyclone spray tower comprises a first cyclone, a second cyclone, an exhaust fan and a water tank, the water tank is divided into an upper layer pool and a lower layer pool from top to bottom, one side of the upper layer pool is provided with a slag scraping cavity, the tail end of the slag scraping cavity is provided with a slag outlet, the top of the slag scraping cavity is communicated with the upper layer pool, the bottom of the slag scraping cavity is communicated with the lower layer pool, a punching grid is arranged at the communication position of the bottom of the slag scraping cavity and the lower layer pool, and a slag scraper is arranged right above the punching grid; the lower tank is internally provided with water, and the lower tank is internally provided with a submersible pump which is respectively connected to spray heads arranged inside the first cyclone and the second cyclone through pipelines.

Preferably, the slag scraper comprises two chains which are arranged at intervals and are driven by a slag scraping motor to run synchronously, the two chains are arranged along the length direction of the slag scraping cavity, and scraping plates are fixed at the bottoms of the two chains.

Preferably, the water replenishing pipe is connected with an electromagnetic valve, a water level sensor is arranged at the lower part of the inner side of the ozone dissolved air barrel, and when the water level sensor detects that the ozone dissolved air barrel is lowered to a preset position, the electromagnetic valve is controlled to be opened for replenishing water; the inside of the mildew-proof medicament dissolving barrel is provided with a stirring paddle driven to rotate by a stirring motor.

Compared with the prior art, the invention has the following technical effects: according to the waste paper dry pulp production line, waste paper is recycled through paper pulp regenerated by the production line, so that the production is efficient, and labor force is saved; the ozone sterilization system is utilized to generate mildew-proof ozone which is easy to kill pathogenic bacteria and peculiar smell in waste paper, the humidity of the finished product of waste paper pulping can be regulated, fire hazards caused by sparks generated in the production process of waste paper pulping are prevented, the fibers of the finished product are protected from being damaged as much as possible, and the mildew-proof agent is combined with a mildew-proof agent to ensure that mildew does not occur in the transportation process of the finished product.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in 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 other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an overall schematic diagram of the waste paper dry pulp production line of the present invention;

FIG. 2 is a schematic diagram of an ozone sterilization system according to the present invention;

FIG. 3 is an internal schematic view of the pulverizer of the present invention;

FIG. 4 is a top view of the bale opener of the present invention;

FIG. 5 is a front view of a dual cyclone spray tower of the present invention;

FIG. 6 is a side view of a dual cyclone spray tower of the present invention;

in fig. 1-6, 1 is a bale breaker, 2 is a crushing system, 3 is a paper-plastic separator, 4 is a double cyclone spray tower, 5 is a storage bin, 6 is an automatic packer, 7 is a first feeding conveyor, 8 is a second feeding conveyor, 9 is an ozone sterilization system, and 10 is a cyclone hopper;

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.

As shown in one of fig. 1 to 6, the waste paper dry pulp production line of the invention comprises a crushing system 2, a paper-plastic separator 3, a cyclone hopper 10, a storage bin 5 and an automatic packer 6; the feed inlet of crushing system 2 is connected with first material loading conveyer 7, and the discharge gate of crushing system 2 is connected to the feed inlet of paper-plastic separator 3 through second material loading conveyer 8, and the paper pulp discharge gate of paper-plastic separator 3 is connected to the feed inlet of whirlwind hopper 10 through centrifugal fan, and the bottom discharge gate of whirlwind hopper 10 is connected to the feed inlet at storage silo 5 top, and the discharge gate of storage silo 5 bottom is connected to the discharge gate of automatic packing machine 6.

The production line also comprises an ozone sterilization system 9, the ozone sterilization system 9 comprises an ozone generator 92, an ozone dissolving barrel 93 and a mildew-proof medicament dissolving barrel 94, an aeration head 95 is arranged at the bottom of the inner side of the ozone dissolving barrel 93, an air outlet of the ozone generator 92 is connected to the aeration head 95, the ozone dissolving barrel 93 is connected with a water supplementing pipe 96, a liquid outlet of the ozone dissolving barrel 93 is connected to a liquid inlet of the mildew-proof medicament dissolving barrel 94 through a feeding pump 910, a mildew-proof medicament input port is connected to the ozone dissolving barrel 93, and a liquid outlet of the mildew-proof medicament dissolving barrel 94 is connected to the crushing system 2 through a metering pump 911. Ozone is known as a green chemical, belongs to a strong oxidant, has four functions of sterilization, decolorization, oxidation and deodorization, has no residue, has no secondary pollution and the like, and is one of environment-friendly green industrial raw materials. The ozone sterilization system 9 is that ozone gas produced by an ozone generator 92 is aerated and dissolved in a sealed ozone dissolution bucket 93 to form an ozone water solution with the concentration of 1-2PPM, and the mildew preventive agent forms a mildew preventive agent solution with the concentration of 2-4PPM in a mildew preventive agent dissolution bucket 94.

In order to ensure the cleanliness of the air entering the ozone generator 92, an air filter 91 is connected to the air inlet of the ozone generator 92 to filter the air. The water supplementing pipe 96 is connected with an electromagnetic valve 97, a water level sensor is arranged at the lower part of the inner side of the ozone dissolved air barrel 93, and when the water level sensor detects that the ozone dissolved air barrel 93 is lowered to a preset position, the electromagnetic valve 97 is controlled to be opened for supplementing water; the inside of the mildew-proof medicament dissolving barrel 94 is provided with a stirring paddle 99 driven to rotate by a stirring motor 98, so that the mildew-proof medicament solution and the ozone water solution can be fully mixed (the mass ratio of the mildew-proof medicament solution to the ozone water solution can be 2:1), and a final mildew-proof ozone solution is formed.

The pulverizing system 2 includes at least one pulverizer 21, and in the case of more than two pulverizers 21, the discharge port of the preceding pulverizer 21 is connected to the feed port of the following pulverizer 21 by a third feeding conveyor 22.

In the present invention, the first feeding conveyor 7 is a conveyor belt, and a plurality of partition plates are provided on the conveyor belt at intervals along the driving direction thereof, so that loose waste paper sheets can be efficiently fed into the pulverizing system 2. The second feeding conveyor 8 and the third feeding conveyor 22 are respectively screw feeding machines, and the screw feeding machines can ensure the conveying tightness.

The pulverizer 21 is a vertical pulverizer, a rotary table 2101 driven by a pulverizing motor is arranged in the pulverizer 21, a plurality of movable cutters 2102 are fixed on the periphery of the rotary table 2101 at intervals along the circumferential direction through bolts, a plurality of fixed cutters 2103 are fixed on the inner wall of the pulverizer 21 along the circumferential direction, the pulverizing motor drives the rotary table 2101 to rotate, and the movable cutters 2102 and the fixed cutters 2103 are matched to cut waste paper into fragments. The movable blades 2102 and the fixed blades 2103 are sheared 10 (the number of the fixed blades 2103) x 6 (the number of the movable blades 2102) x 800 (the cutter head rotating speed) =48000 times per minute when the pulverizer 21 works, so that the blades are easy to wear, frequent to replace and high in cost, the gap between the movable blades 2102 and the fixed blades 2103 needs to be adjusted for a long time after replacement, and the working strength is high.

The invention also comprises a bale breaker 1 positioned at the front end of the crushing system 2, the bale breaker 1 comprises a box body 101, a feed inlet is arranged at the top of the box body 101, a discharge outlet is arranged at the bottom of the box body 101, two knife rolls 102 are arranged in parallel at intervals in the box body 101, the two knife rolls 102 are respectively driven by respective gear motors to reversely rotate, movable blades 103 which are arranged in a staggered mode are respectively fixed on the two knife rolls 102, and static blades 104 which are arranged in a staggered mode with the movable blades 103 on the two knife rolls 102 are arranged on two opposite side walls of the box body 101. The box 101 is formed by splicing two auxiliary boxes, two knife rolls 102 are respectively connected to the two different auxiliary boxes in a rotating mode, the spliced parts on two sides of the two auxiliary boxes are spliced together in an L-shaped mode, the spliced parts on two sides of the two auxiliary boxes are respectively provided with more than two groups of fixed hole sites, and when the spliced parts on two sides of the two auxiliary boxes are mutually shifted, the corresponding fixed hole sites are selected and locked and fixed through bolts. According to the invention, the distance between the two knife rolls 102 of the bale breaker 1 is adjustable, the splicing position of the two auxiliary boxes can be adjusted according to the requirement during operation, so that the distance between the knife rolls 102 is adjusted, and the bale breaker is a shredder when no distance exists, so that processed paper sheets can be shredded into smaller fragments; when the space is available, the waste paper bale breaker 1 is used for high-pressure baling, the extruded and compact bale paper sheets are untwisted into Cheng Sansong shapes, conditions are created for subsequent sorting processing, and the space size is related to bale breaking capacity.

The top of the cyclone hopper 10 is connected with a double cyclone spray tower 4, the double cyclone spray tower 4 comprises a first cyclone 41, a second cyclone 42, an exhaust fan 43 and a water tank 44, the water tank 44 is divided into an upper tank 45 and a lower tank 46 from top to bottom, one side of the upper tank 45 is provided with a slag scraping cavity 47, the tail end of the slag scraping cavity 47 is provided with a slag outlet, the top of the slag scraping cavity 47 is communicated with the upper tank 45, the bottom of the slag scraping cavity 47 is communicated with the lower tank 46, a punching grid mesh 48 is arranged at the communicating position of the bottom of the slag scraping cavity 47 and the lower tank 46, and a slag scraper 49 is arranged right above the punching grid mesh 48; the lower tank 46 is internally provided with water, and the lower tank 46 is internally provided with a submersible pump 410, and the submersible pump 410 is respectively connected to spray heads arranged inside the first cyclone 41 and the second cyclone 42 through pipelines. The scraper 49 has a chain plate structure, and comprises two chains which are arranged at intervals and are driven by a scraper motor to run synchronously, wherein the two chains are arranged along the length direction of the scraper cavity 47, and scraping plates are fixed at the bottoms of the two chains. The double cyclone spray tower 4 is high-efficiency dust treatment equipment, has the advantages of small volume, low energy consumption, thorough treatment and the like, has obvious advantages with the traditional spray tower and pulse cloth bag dust removal equipment, intercepts paper pulp dissolved in water by using a punching grid 48 in time when dust is treated, and utilizes a chain plate type slag scraper 49 to clean the blocking grid in time so as to realize long-time non-blocking operation of the spray tower and cyclic use of spray water and timely extraction and reuse of paper pulp.

The paper-plastic separator 3 and the automatic packer 6 in the invention are all devices in the prior art, for example, the paper-plastic separator 3 can be a paper-plastic separator 3 disclosed in patent publication No. CN1010076930A, and the automatic packer 6 can be a hydraulic packer disclosed in patent publication No. CN 1010791988A.

The working process of the invention comprises the following steps: the waste paper bales are sent into a bale breaker 1, the bale breaker 1 breaks up the baled paper sheets into Cheng Sansong shapes, then loose paper sheets are sent into a crushing system 2, in the process of crushing the paper sheets into fragments, mildew-proof ozone liquid generated by an ozone sterilization system 9 kills pathogenic bacteria and peculiar smell in the waste paper according to the required dosage (the mildew-proof ozone liquid accounts for 10-30% of the mass of the waste paper), the humidity of a finished product of pulping the waste paper can be regulated, fire caused by sparks generated in the pulping production process of the waste paper is prevented, and the fiber of the finished product is protected from being damaged as much as possible; the waste paper pulp from the crushing system 2 enters into paper-plastic separation to separate paper pulp from plastic, and the paper pulp passes through a cyclone hopper 10, a storage bin 5 and an automatic packing machine 6 to be finally packed into bundle-shaped finished paper pulp.

The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.

Claims

1. A waste paper dry pulp production line, including a crushing system, a paper-plastic separator, a cyclone hopper, a storage bin and an automatic baler; characterized in that: the feed port of the crushing system is connected to a first feeding conveyor , the discharge port of the crushing system is connected to the feed port of the paper-plastic separator through the second feeding conveyor, and the pulp discharge port of the paper-plastic separator is connected to the feed port of the cyclone hopper through a centrifugal fan. The cyclone hopper The bottom outlet is connected to the feed port on the top of the storage bin, and the outlet at the bottom of the storage bin is connected to the outlet of the automatic baler; the production line also includes an ozone sterilization system, which The system includes an ozone generator, an ozone gas-dissolving barrel, and an antifungal agent dissolving barrel. An aeration head is provided at the bottom of the ozone gas-dissolving barrel. The air outlet of the ozone generator is connected to the aeration head. The ozone gas-dissolving barrel A water replenishing pipe is connected, and the liquid outlet of the ozone gas-dissolving barrel is connected to the liquid inlet of the anti-mildew agent dissolving barrel through a feeding pump. The ozone gas-dissolving barrel is connected to an anti-mold agent input port. The anti-mildew agent The liquid outlet of the chemical solution barrel is connected to the crushing system through a metering pump.

2. The waste paper dry pulp production line according to claim 1, characterized in that: the crushing system includes at least one crusher. If there are more than two crushers, the discharge port of the previous crusher is connected to the discharge port of the subsequent crusher. The feed ports of the pulverizer are connected through a third feeding conveyor.

3. The waste paper dry pulp production line according to claim 2, characterized in that: the pulverizer has a turntable driven by a pulverizing motor, and a plurality of movable knives are fixed at intervals along the circumferential direction of the turntable by bolts. There are multiple fixed knives fixed on the inner wall of the crusher along the circumferential direction. The crushing motor drives the turntable to rotate. The movable knife and the fixed knife cooperate to cut the waste paper into pieces.

4. The waste paper dry pulp production line according to claim 2, characterized in that: the first feeding conveyor is a conveyor belt, and a plurality of partitions are spaced along the transmission direction on the conveyor belt; the second feeding conveyor is a conveyor belt. The loading conveyor and the third loading conveyor are screw feeders respectively.

5. The waste paper dry pulp production line according to claim 1, characterized in that: the air inlet of the ozone generator is connected with an air filter.

6. The waste paper dry pulp production line according to claim 1, characterized in that: it also includes a bag loosening machine located at the front end of the crushing system, the loose bagging machine includes a box body, the top of the box body is provided with a feed port, and the box body is provided with a feed port. There is a discharge port at the bottom, and two knife rollers are arranged at parallel intervals inside the box. The two knife rollers are driven by their own reduction motors to rotate in opposite directions. The two knife rollers are respectively fixed with staggered movable blades, and the box is opposite to each other. The two side walls are provided with static blades that are offset from the movable blades on the two cutter rollers.

7. The waste paper dry pulp production line according to claim 6, characterized in that: the box body is composed of two auxiliary boxes spliced together, and the two knife rollers are respectively rotatably connected to two different auxiliary boxes. The splicing parts on both sides of the box are spliced together in an L shape. The splicing parts on both sides of the two auxiliary boxes have more than two sets of fixed holes. When the splicing parts on both sides of the two auxiliary boxes are displaced from each other, select the corresponding ones. Fix the holes and lock them with bolts.

8. The waste paper dry pulp production line according to claim 1, characterized in that: the top of the cyclone hopper is connected with a double cyclone spray tower, and the double cyclone spray tower includes a first cyclone cylinder, a second cyclone cylinder, An exhaust fan and a pool. The pool is divided into an upper pool and a lower pool from top to bottom. One side of the upper pool has a slag scraping chamber. The end of the scraping chamber is provided with a slag outlet. The top of the scraping chamber is in contact with the upper pool. The bottom of the slag scraping chamber is connected to the lower pool, and a punching grid is provided at the connection point between the two. A slag scraper is provided directly above the punching grid; there is water inside the lower pool, and there is a slag scraper inside the lower pool. There is a submersible pump, and the submersible pump is connected to the sprinkler heads provided inside the first cyclone and the second cyclone through pipelines.

9. The waste paper dry pulp production line according to claim 8, characterized in that: the scraper includes two chains arranged at intervals and driven by a scraping motor to run synchronously, and the two chains are along the length of the scraping chamber. Direction setting, scrapers are fixed at the bottom of the two chains.

10. The waste paper dry pulp production line according to claim 1, characterized in that: the water supply pipe is connected with a solenoid valve, and a water level sensor is provided at the lower inner part of the ozone gas-dissolved barrel. When the water level sensor detects ozone-dissolved gas, When the barrel is lowered to a predetermined position, the solenoid valve is controlled to open for water replenishment; the antifungal agent dissolving barrel has a stirring paddle driven and rotated by a stirring motor inside.