CN109397579B

CN109397579B - PVC pipe retrieves and uses rubbing crusher with drying function

Info

Publication number: CN109397579B
Application number: CN201811500819.9A
Authority: CN
Inventors: 何学祥
Original assignee: Jingjiang Yikai Ventilation Equipment Co ltd
Current assignee: JINGJIANG YIKAI VENTILATION EQUIPMENT Co.,Ltd.
Priority date: 2018-12-10
Filing date: 2018-12-10
Publication date: 2022-01-04
Anticipated expiration: 2038-12-10
Also published as: CN109397579A

Abstract

The invention relates to the technical field of PVC (polyvinyl chloride) pipe recovery, in particular to a PVC pipe recovery crusher with a drying function, which adopts two-stage crushing, wherein the first-stage crushing drives a spiral auger to work through a rotating shaft, carries PVC pipes while crushing the PVC pipes, and then carries out secondary crushing through a crushing roller in a second-stage crushing cylinder to ensure the crushing efficiency; a material storage pipe is connected to the discharge end of the primary crushing barrel, a drying assembly is arranged on one side of the material storage pipe, the primarily crushed PVC pipe falls into the material storage pipe, and a fan heats air through a heating cavity and leads the air into the material storage pipe to dehumidify and dry the PVC pipe; when the driving motor drives the driving shaft to rotate, the driving bevel gear and the driven bevel gear act to drive the driven shaft to rotate, the connecting rod drives the push-pull rod to move in a reciprocating mode, the push-pull rod periodically impacts the secondary crushing barrel, PVC particles adhered to the barrel wall are shaken off, and the residual quantity is reduced.

Description

PVC pipe retrieves and uses rubbing crusher with drying function

Technical Field

The invention relates to the technical field of PVC pipe recovery, in particular to a pulverizer with a drying function for PVC pipe recovery.

Background

The PVC material is polyvinyl chloride, which is one of the plastic products with the largest output in the world, has low price and wide application, and the polyvinyl chloride resin is white or light yellow powder, can not be used independently and must be modified. PVC is white powder with an amorphous structure, has small branching degree and poor stability to light and heat. Different additives can be added according to different purposes, and the polyvinyl chloride plastic can show different physical properties and mechanical properties. A proper amount of plasticizer is added into the polyvinyl chloride resin to prepare various hard, soft and transparent products.

PVC can be divided into soft PVC and hard PVC. With hard PVC accounting for approximately 2/3 on the market and soft PVC accounting for 1/3. Soft PVC is generally used for floors, ceilings, and leather surfaces, but because the soft PVC contains a plasticizer (which is a difference between the soft PVC and hard PVC), the soft PVC has poor physical properties (for example, the soft PVC is not suitable for use when a water supply pipe needs to bear a certain water pressure), and thus the application range is limited. The hard PVC does not contain a plasticizer, so the hard PVC is easy to form and has good physical properties, thereby having great development and application values.

In the production process of the polyvinyl chloride material, several auxiliary agents such as a stabilizer, a plasticizer and the like must be added, and if all the environmental-friendly auxiliary agents are adopted, the PVC pipe is also a nontoxic, tasteless and environment-friendly product.

PVC pipe is made up by using polyvinyl chloride resin, stabilizing agent and lubricating agent through the processes of mixing, hot-pressing and extrusion forming, and is a plastic pipe material which can be developed and used for the first time, and possesses the advantages of strong corrosion resistance, easy adhesion, low cost and hard texture, but because of the leakage of PVC-U monomer and additive, it is only applicable to water supply system whose conveying temp. is less than 45 deg.C, and is commonly used in drainage, waste water, chemicals, heating liquid and cooling liquid, food, ultrapure liquid, slurry, gas, compressed air and vacuum system.

Because the use amount of PVC pipe is huge, but all is disposable under many conditions, the PVC pipe is often directly abandoned it after finishing using to not only can waste resources, but also can the polluted environment, be not conform to current green economic's requirement, and what on the other hand current PVC plastic tubing used when producing all is new material, has wasted a large amount of materials, has increased manufacturing cost.

Therefore, PVC pipe recycling is always concerned, but most of the existing recycling equipment is used separately, wherein a PVC pipe crushing device cannot fully crush PVC pipes, the crushing effect is poor, the crushing efficiency is low, and meanwhile, crushed pipes cannot be conveniently collected, so that the labor intensity of workers is high; on the other hand, the PVC pipe can have liquid to exist when using, and when smashing, liquid can be inevitable overflow and mix with kibbling granule, leads to moisture on the granule surface belt, produces the condition of wall built-up, leads to the interior volume of remaining great of reducing mechanism.

Disclosure of Invention

Technical problem to be solved

The invention aims to overcome the defects of the prior art and provide a pulverizer with a drying function for PVC pipe recycling, so that drying treatment for pulverizing PVC pipes is realized, the condition of wall hanging is reduced, and finally the residual quantity of pulverized particles in a device is reduced.

(II) technical scheme

A PVC pipe recycling crusher with a drying function comprises a support frame, a primary crushing assembly, a drying assembly, a blanking assembly and a secondary crushing assembly,

the support frame comprises a base, a left vertical plate and a right vertical plate which are fixedly connected to two ends of the base, and a driving motor is installed on the upper portion of the inner side of the left vertical plate;

the primary crushing assembly comprises a primary crushing barrel which is transversely arranged between the left vertical plate and the right vertical plate, and two ends of the primary crushing barrel are sealed and fixedly connected with the left vertical plate and the right vertical plate through a supporting rod; a feed inlet is formed in the upper left end of the primary crushing barrel; the output end of the driving motor extends rightwards and is connected with a driving shaft, the driving shaft extends into the primary crushing barrel and is provided with a spiral auger, and the spiral auger rotates along with the driving shaft to drive the material to move rightwards; the right lower end of the side wall of the primary crushing barrel is connected with a storage pipe;

the drying component is arranged on one side of the storage pipe and comprises a fan, a heating cavity and a gas pipe, the fan is fixed below the primary crushing barrel, the air outlet end of the fan is communicated with the heating cavity, a heater is arranged in the heating cavity, and the heating cavity is connected with the lower section of the storage pipe through the gas pipe;

the blanking assembly comprises a blanking cavity and a blanking wheel, the blanking cavity is arranged below the material storage pipe and communicated with the bottom end of the material storage pipe, the blanking wheel is rotatably arranged in the blanking cavity and externally connected with a rotating motor, and the outer ring of the blanking wheel is provided with a material storage groove;

the secondary crushing assembly comprises a vertically arranged secondary crushing barrel, the top end of the secondary crushing barrel is communicated with the bottom end of the blanking cavity, a left crushing roller and a right crushing roller are symmetrically arranged in the secondary crushing barrel corresponding to the outlet of the blanking cavity, and the bottom end of the secondary crushing barrel is communicated with the outside; the corresponding material receiving basket is arranged on the base

Preferably, the crushing device further comprises an air cylinder, the air cylinder is horizontally arranged on the outer wall of the secondary crushing barrel through a support, the telescopic end of the air cylinder extends into the secondary crushing barrel and is connected with a roll shaft mounting frame, and the left crushing roller is arranged on the roll shaft mounting frame; two ends of the right crushing roller are rotatably connected with the inner wall of the secondary crushing barrel, and one end of the right crushing roller is also externally connected with a rotating motor.

Preferably, the device also comprises a material shaking assembly, the material shaking assembly is arranged at the left part of the device and comprises a driven shaft, a crank, a sleeve, a connecting rod, a push-pull rod and a guide cylinder, a driving bevel gear is arranged at the section of the driving shaft, which is positioned at the left side of the primary crushing cylinder, the driven shaft is vertically arranged, a driven bevel gear vertically meshed with the driving bevel gear is arranged at the top end of the driving shaft, the crank is arranged at the lower section of the driven shaft, the sleeve is sleeved on the crank, the sleeve is connected with the connecting rod arranged in the horizontal direction, and the other end of the connecting rod is hinged with the push-pull rod; the base is connected with a guide cylinder through a support, the other end of the push-pull rod horizontally penetrates through the guide cylinder and is close to the secondary crushing cylinder, when the driven shaft rotates, the connecting rod drives the push-pull rod to reciprocate, and the push-pull rod periodically impacts the secondary crushing cylinder.

Preferably, the left vertical plate is provided with an installation seat through which the driven shaft penetrates, and the driven shaft is rotatably connected with the installation seat; the bottom end of the driven shaft is also rotationally connected with the base.

Preferably, one end of the push-pull rod close to the secondary crushing barrel is provided with an elastic end block.

Preferably, the push-pull rod is of a telescopic loop bar structure and is provided with a locking screw.

Preferably, the top end of the secondary crushing barrel is connected with the bottom end of the blanking cavity through a corrugated pipe.

Preferably, the right side of the secondary crushing barrel is connected with the right vertical plate through a spring rod.

Preferably, the gas transmission pipe is of a necking structure, and the small end of the gas transmission pipe is communicated with the storage pipe and is provided with a filter screen.

Preferably, the outer diameter of the material receiving basket is 1.25-1.5 times of the inner diameter of the secondary crushing barrel.

(III) advantageous effects

The invention provides a PVC pipe recycling crusher with a drying function, which has the following benefits:

1, adopt the doublestage to smash, the one-level is smashed and is driven spiral auger work through the pivot, carries it when smashing the PVC pipe, later carries out the secondary crushing through the crushing roller in the second grade crushing section of thick bamboo, guarantees crushing efficiency.

2, smash a section of thick bamboo discharge end at the one-level and be connected with the storage pipe to set up dry subassembly in storage pipe one side, tentatively kibbling PVC pipe falls into in the storage pipe, and the fan is through heating the chamber heating with the air and let in the storage pipe, dehumidifies the drying to the PVC pipe.

3, a blanking assembly is arranged below the material storage pipe, when the material storage groove is communicated with the outlet of the material storage pipe, the PVC pipe in the material storage pipe falls into the material storage groove, then the blanking wheel continues to rotate, and the outlet of the material storage pipe is sealed; when depositing the silo and the import intercommunication of second grade crushing barrel, the unloading of promptly walking realizes intermittent type unloading promptly like this, avoids the unloading to lead to the second grade to smash the effect poor too fast on the one hand, and on the other hand also reserves sufficient time and carries out the drying to the PVC pipe in the storage tube.

And 4, the crushing roller on one side is driven to move by the cylinder, and the gap between the left crushing roller and the right crushing roller is changed by adjusting the extension of the cylinder, so that the crushing strength is changed.

And 5, when the driving motor drives the driving shaft to rotate, the driving bevel gear and the driven bevel gear act to drive the driven shaft to rotate, the connecting rod drives the push-pull rod to move in a reciprocating mode, the push-pull rod periodically impacts the secondary crushing barrel to shake off PVC particles adhered to the barrel wall, and the residual quantity is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced 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 that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a block diagram of a station A according to an embodiment of the present invention;

FIG. 2 is a block diagram of a station B according to an embodiment of the present invention

FIG. 3 is a block diagram of another embodiment of the present invention;

FIG. 4 is a structural view of a third embodiment of the present invention;

FIG. 5 is a structural view of a fourth embodiment of the present invention;

1-base, 2-left vertical plate, 3-right vertical plate, 4-support rod, 5-driving motor, 6-driving shaft, 7-primary crushing barrel, 8-feeding port, 9-spiral auger, 10-storage pipe, 11-fan, 12-heating cavity, 13-air pipe, 14-blanking cavity, 15-blanking wheel, 16-secondary crushing barrel, 17-air cylinder, 18-left crushing roller, 19-right crushing roller, 20-receiving basket, 21-driving bevel gear, 22-driven bevel gear, 23-driven shaft, 24-mounting seat, 25-crank, 26-sleeve, 27-connecting rod, 28-push-pull rod, 29-locking screw, 30-elastic end block, 31-guide barrel and 32-support, 33-bellows, 34-spring rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

the support frame comprises a base 1, a left vertical plate 2 and a right vertical plate 3 which are fixedly connected with two ends of the base, and a driving motor 5 is arranged on the upper part of the inner side of the left vertical plate 2;

the primary crushing assembly comprises a primary crushing barrel 7 which is transversely arranged between the left vertical plate and the right vertical plate, and two ends of the primary crushing barrel 7 are sealed and fixedly connected with the left vertical plate 2 and the right vertical plate 3 through a supporting rod; the left upper end of the primary crushing barrel 7 is provided with a feeding hole 8; the output end of the driving motor 5 extends rightwards and is connected with a driving shaft 6, the driving shaft 6 extends into the primary crushing barrel 7 and is provided with a spiral auger 9, and the spiral auger 9 drives the material to move rightwards along with the rotation of the driving shaft 6; the right lower end of the side wall of the primary crushing barrel 7 is connected with a storage pipe 10; specifically, driving motor 5 drives driving shaft 6 and rotates, and then drives spiral auger 9 work, will transport the right-hand member from the old and useless PVC pipe that feed inlet 8 dropped into, and the transportation is also carried out preliminary crushing to the pipeline.

The drying component is arranged on one side of the material storage pipe 10 and comprises a fan 11, a heating cavity 12 and an air conveying pipe 13, the fan 11 is fixed below the primary crushing barrel 7, the air outlet end of the fan 11 is communicated with the heating cavity 12, a heater is arranged in the heating cavity 12, and the heating cavity 12 is connected with the lower section of the material storage pipe 10 through the air conveying pipe 13; specifically, the PVC pipe that preliminary crushing falls into storage pipe 10, and fan 11 heats the air through heating chamber 12, lets in storage pipe 10, dehumidifies the drying to the PVC pipe.

The blanking assembly comprises a blanking cavity 14 and a blanking wheel 15, the blanking cavity 14 is arranged below the material storage pipe 10 and communicated with the bottom end of the material storage pipe 10, the blanking wheel 15 is rotatably arranged in the blanking cavity 14 and externally connected with a rotating motor, and the outer ring of the blanking wheel 15 is provided with a material storage groove; specifically, the blanking wheel 15 rotates, when the storage groove is communicated with the outlet of the storage pipe 10, the PVC pipe in the storage pipe 10 falls into the storage groove, then the blanking wheel 15 continues to rotate, and the outlet of the storage pipe 10 is sealed; when depositing the silo and 16 imports of second grade crushing barrel and communicate, the unloading of promptly by oneself realizes intermittent type unloading promptly, avoids the unloading to lead to the second grade to smash the effect poor too fast on the one hand, and on the other hand also reserves sufficient time and carries out the drying to the PVC pipe in the storage pipe 10.

The secondary crushing assembly comprises a vertically arranged secondary crushing barrel 16, the top end of the secondary crushing barrel 16 is communicated with the bottom end of the blanking cavity 14, a left crushing roller 18 and a right crushing roller 19 are symmetrically arranged in the secondary crushing barrel 16 corresponding to an outlet of the blanking cavity 14, and the bottom end of the secondary crushing barrel 16 is communicated with the outside; receiving basket 20 has been placed to the correspondence on base 1, and is concrete, falls into the PVC pipe of second grade crushing barrel 16 from unloading chamber 14, smashes through the second grade of smashing the roller about, finally falls into receiving in the basket.

Example 2

The secondary crushing assembly comprises a vertically arranged secondary crushing barrel 16, the top end of the secondary crushing barrel 16 is communicated with the bottom end of the blanking cavity 14, a left crushing roller 18 and a right crushing roller 19 are symmetrically arranged in the secondary crushing barrel 16 corresponding to an outlet of the blanking cavity 14, and the bottom end of the secondary crushing barrel 16 is communicated with the outside; the material receiving basket 20 is correspondingly arranged on the base 1; specifically, the PVC pipe falling into the secondary crushing barrel 16 from the blanking cavity 14 is subjected to secondary crushing by the left and right crushing rollers, and finally falls into the receiving basket.

The crushing device further comprises an air cylinder 17, the air cylinder 17 is horizontally arranged on the outer wall of the secondary crushing barrel 16 through a support, the telescopic end of the air cylinder 17 extends into the secondary crushing barrel 16 and is connected with a roll shaft mounting frame, and the left crushing roller 18 is arranged on the roll shaft mounting frame; two ends of the right crushing roller 19 are rotatably connected with the inner wall of the secondary crushing barrel 16, and one end of the right crushing roller is also externally connected with a rotating motor; the crushing force is changed by adjusting the expansion and contraction of the air cylinder 17 to change the gap between the left crushing roller 19 and the right crushing roller 19.

Example 3

The device is characterized by further comprising a shaking assembly, wherein the shaking assembly is arranged at the left part of the device and comprises a driven shaft 23, a crank 25, a sleeve 26, a connecting rod 27, a push-pull rod 28 and a guide cylinder 31, the driving shaft 6 is positioned at the left side section of the primary crushing cylinder 7 and is provided with a driving bevel gear 27, the driven shaft 23 is vertically arranged, the top end of the driven shaft is provided with a driven bevel gear 22 vertically meshed with the driving bevel gear 27, the lower section of the driven shaft 23 is provided with the crank 25, the crank 25 is sleeved with the sleeve 26, the sleeve 26 is connected with the connecting rod 27 arranged in the horizontal direction, and the other end of the connecting rod 27 is hinged with the push-pull rod 28; the base 1 is connected with a guide cylinder 31 through a support 30, and the other end of the push-pull rod 28 horizontally penetrates through the guide cylinder 31 and is close to the secondary crushing cylinder 16; specifically, when the driving motor 5 drives the driving shaft 6 to rotate, the driving bevel gear 21 and the driven bevel gear 22 act to drive the driven shaft 23 to rotate, the connecting rod 27 drives the push-pull rod 28 to reciprocate, and the push-pull rod 28 periodically impacts the secondary crushing barrel 16 to shake off the PVC particles adhered to the barrel wall.

Example 4

The left vertical plate 2 is provided with an installation seat 24 through which a driven shaft 23 passes, and the driven shaft 23 is rotatably connected with the installation seat 24; the bottom end of the driven shaft 23 is also rotationally connected with the base 1.

Wherein, the push-pull rod 28 is provided with an elastic end block 30 at one end near the secondary crushing barrel 16 to buffer the impact on the secondary crushing barrel 16.

Example 5

The crushing device further comprises an air cylinder 17, the air cylinder 17 is horizontally arranged on the outer wall of the secondary crushing barrel 16 through a support, the telescopic end of the air cylinder 17 extends into the secondary crushing barrel 16 and is connected with a roll shaft mounting frame, and the left crushing roller 18 is arranged on the roll shaft mounting frame; two ends of the right crushing roller 19 are rotatably connected with the inner wall of the secondary crushing barrel 16, and one end of the right crushing roller is also externally connected with a rotating motor; the crushing roller gap between the left and right sides is changed by adjusting the expansion and contraction of the cylinder 17, so that the crushing force is changed.

The push-pull rod 28 is a telescopic loop bar structure and is provided with a locking screw 29, so that the length of the push-pull cylinder 28 can be conveniently adjusted, and the impact strength can be further adjusted.

Example 6

Wherein, the top end of the secondary crushing barrel 16 is connected with the bottom end of the blanking cavity 14 through a corrugated pipe 33, and the ductility of the corrugated pipe 33 is utilized to realize the shaking of the secondary crushing barrel 16.

Wherein, the right side of the secondary crushing barrel 16 is connected with the right vertical plate through a spring rod 34 to realize active support.

Example 7

Wherein, the gas-supply pipe 13 is the throat structure, and the osculum end intercommunication storage pipe 10 installs the filter screen to improve the air current velocity of flow, take away PVC pipe moisture.

Wherein, connect the material basket 20 external diameter to be 1.25 ~ 1.5 times of second grade crushing barrel 16 internal diameter, when guaranteeing that second grade crushing barrel 16 rocks, the PVC granule still falls in second grade crushing barrel 16.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A PVC tube recycling crusher with a drying function comprises a support frame, a primary crushing assembly, a drying assembly, a blanking assembly and a secondary crushing assembly, and is characterized in that,

the support frame comprises a base (1), a left vertical plate (2) and a right vertical plate (3) which are fixedly connected to two ends of the base (1), and a driving motor (5) is installed on the upper portion of the inner side of the left vertical plate (2);

the primary crushing assembly comprises a primary crushing barrel (7) which is transversely arranged between the left vertical plate and the right vertical plate, two ends of the primary crushing barrel (7) are sealed and fixedly connected with the left vertical plate (2) and the right vertical plate (3) through a supporting rod (4); a feed inlet (8) is formed in the upper left end of the primary crushing barrel (7); the output end of the driving motor (5) extends rightwards and is connected with a driving shaft (6), the driving shaft (6) extends into the primary crushing barrel (7) and is provided with a spiral packing auger (9), and the spiral packing auger (9) drives the material to move rightwards along with the rotation of the driving shaft (6); the right lower end of the side wall of the primary crushing barrel (7) is connected with a storage pipe (10);

the drying assembly is arranged on one side of the storage pipe (10) and comprises a fan (11), a heating cavity (12) and an air conveying pipe (13), the fan (11) is fixed below the primary crushing barrel (7), the air outlet end of the fan (11) is communicated with the heating cavity (12), a heater is arranged in the heating cavity (12), and the heating cavity (12) is connected with the lower section of the storage pipe (10) through the air conveying pipe (13);

the blanking assembly comprises a blanking cavity (14) and a blanking wheel (15), the blanking cavity (14) is arranged below the storage pipe (10) and communicated with the bottom end of the storage pipe (10), the blanking wheel (15) is rotatably arranged in the blanking cavity (14) and externally connected with a rotating motor, and the outer ring of the blanking wheel (15) is provided with a storage groove;

the secondary crushing assembly comprises a vertically arranged secondary crushing barrel (16), the top end of the secondary crushing barrel (16) is communicated with the bottom end of the blanking cavity (14), a left crushing roller (18) and a right crushing roller (19) are symmetrically arranged in the secondary crushing barrel (16) corresponding to an outlet of the blanking cavity (14), and the bottom end of the secondary crushing barrel (16) is communicated with the outside; the base (1) is correspondingly provided with a receiving basket (20);

the device is characterized by further comprising a shaking assembly, wherein the shaking assembly is arranged at the left part of the device and comprises a driven shaft (23), a crank (25), a sleeve (26), a connecting rod (27), a push-pull rod (28) and a guide cylinder (31), a driving bevel gear (21) is arranged at the section, located on the left side of the primary crushing cylinder (7), of the driving shaft (6), the driven shaft (23) is vertically arranged, a driven bevel gear (22) vertically meshed with the driving bevel gear (21) is arranged at the top end of the driving shaft, the crank (25) is arranged on the lower section of the driven shaft (23), the sleeve (26) is sleeved with the crank (25), the sleeve (26) is connected with the connecting rod (27) arranged in the horizontal direction, and the push-pull rod (28) is hinged to the other end of the connecting rod (27); the base (1) is connected with a guide cylinder (31) through a support (32), the other end of the push-pull rod (28) horizontally penetrates through the guide cylinder (31) and is close to the secondary crushing cylinder (16), when the driven shaft (23) rotates, the connecting rod (27) drives the push-pull rod (28) to move in a reciprocating mode, and the push-pull rod (28) periodically impacts the secondary crushing cylinder (16);

the top end of the secondary crushing barrel (16) is connected with the bottom end of the blanking cavity (14) through a corrugated pipe (33); the right side of the secondary crushing barrel (16) is connected with a right vertical plate (3) through a spring rod (34);

the crushing device is characterized by further comprising an air cylinder (17), wherein the air cylinder (17) is horizontally arranged on the outer wall of the secondary crushing barrel (16) through a support, the telescopic end of the air cylinder (17) extends into the secondary crushing barrel (16) and is connected with a roll shaft mounting frame, and the left crushing roller (18) is arranged on the roll shaft mounting frame; two ends of the right crushing roller (19) are rotatably connected with the inner wall of the secondary crushing barrel (16), and one end of the right crushing roller is also externally connected with a rotating motor;

the push-pull rod (28) is of a telescopic loop bar structure and is provided with a locking screw (29).

2. The PVC pipe recycling crusher with the drying function as claimed in claim 1, wherein the left vertical plate (2) is provided with an installation seat (24) through which a driven shaft (23) passes, and the driven shaft (23) is rotatably connected with the installation seat (24); the bottom end of the driven shaft (23) is also rotationally connected with the base (1).

3. The PVC pipe recycling shredder with drying function according to claim 1, characterized in that the end of the push-pull rod (28) near the secondary shredding cylinder (16) is provided with an elastic end block (30).

4. The PVC pipe recycling pulverizer with the drying function as claimed in claim 1, wherein the gas transmission pipe (13) is of a throat structure, and a small end is communicated with the storage pipe (10) and is provided with a filter screen.

5. The PVC pipe recycling crusher with the drying function as claimed in claim 1, wherein the outer diameter of the receiving basket (20) is 1.25-1.5 times of the inner diameter of the secondary crushing barrel (16).