CN108654293B

CN108654293B - Exhaust system used in rubber waste heating and crushing process

Info

Publication number: CN108654293B
Application number: CN201810844442.2A
Authority: CN
Inventors: 丁云
Original assignee: Zunyi Huaqing Plastic Product Co ltd
Current assignee: ZUNYI HUAQING PLASTIC PRODUCT Co.,Ltd.
Priority date: 2018-07-27
Filing date: 2018-07-27
Publication date: 2020-08-25
Anticipated expiration: 2038-07-27
Also published as: CN108654293A

Abstract

The invention belongs to the technical field of rubber regeneration, and particularly discloses an exhaust system for heating and crushing rubber wastes, which comprises an exhaust pipeline, wherein a slow flow part and a rapid flow part are arranged in the exhaust pipeline, the slow flow part is communicated with the rapid flow part, the pipe diameter of the slow flow part is larger than that of the rapid flow part, a screening unit is vertically arranged in the slow flow part and comprises a fixed ring and a plurality of movable rings, all the movable rings and the fixed ring are concentrically arranged, the distance between every two adjacent movable rings or between every two adjacent fixed rings and the movable ring is smaller than the particle size of rubber powder particles, the fixed ring is concentrically and fixedly arranged on the inner wall of the slow flow part, unclosed annular chutes are concentrically arranged on the inner walls of all the movable rings and the fixed ring, sliders are fixedly arranged on the outer walls of all the movable rings, and are slidably connected in the adjacent chutes; the torrent portion is provided with a power unit which can drive one of the moving rings to rotate. The scheme solves the problem that rubber powder particles are stuck in the screen during the heating process of the rubber waste.

Description

Exhaust system used in rubber waste heating and crushing process

Technical Field

The invention belongs to the technical field of rubber regeneration, and particularly discloses an exhaust system used in a rubber waste heating and crushing process.

Background

Rubber belongs to a renewable product, and generally after the rubber regeneration, the macromolecule net-shaped cross-linking structure in a rubber product is destroyed by a single-chain small molecular structure through crushing, heating and chemical desulfurization in a high-temperature and high-pressure environment, so that the rubber product is changed into a processable viscoelastic body from an elastomer. A large amount of waste gas can be discharged in the rubber heating and desulfurizing processes, the waste gas contains a small amount of rubber powder particles, harmful gases such as hydrogen sulfide and sulfur dioxide, and trace harmful substance elements such as benzene, toluene and xylene, and serious environmental pollution can be caused if the waste gas is not purified, wherein the method for purifying the waste gases such as sulfur dioxide, benzene and toluene in the waste gas is many and effective; the rubber powder particles are generally intercepted by adopting a screen, but the rubber powder particles have certain elasticity and viscosity, so after the screen is used for a long time, the rubber powder can gradually block the screen holes on the screen. Generally, if the screen cloth has been plugged up to impurity, then adopt the scraper blade just can be scraped the impurity on the screen cloth, but because the rubber powder granule has viscidity, so the rubber powder granule can block up and be stained with in the sieve mesh, adopts the scraper blade can't be with its clean up, leads to the screen cloth to need often change, increase manufacturing cost.

Disclosure of Invention

The invention aims to provide an exhaust system used in the heating and crushing process of rubber waste, which aims to solve the problem that rubber powder particles are stuck in sieve pores of a screen in the heating process of the rubber waste.

In order to achieve the purpose, the basic scheme of the invention is as follows: the exhaust system for the rubber waste heating and crushing process comprises an exhaust pipeline, wherein a slow flow part and a rapid flow part are arranged in the exhaust pipeline, the slow flow part is communicated with the rapid flow part, the pipe diameter of the slow flow part is larger than that of the rapid flow part, a screening unit is vertically arranged in the slow flow part and comprises a fixing ring and a plurality of moving rings, the fixing ring is concentrically and fixedly arranged on the inner wall of the slow flow part, all the moving rings and the fixing ring are concentrically arranged, the outer diameters of the moving rings are sequentially reduced from outside to inside, the distance between every two adjacent moving rings or between every two adjacent fixing rings and the moving rings is smaller than the particle size of rubber powder particles, unclosed annular chutes are concentrically arranged on the inner walls of all the moving rings and the fixing ring, sliders are fixedly arranged on the outer walls of all the moving rings, and the sliders are slidably connected in the adjacent chutes; and a power unit capable of driving one of the moving rings to rotate is arranged in the torrent part.

The working principle of the basic scheme is as follows: when the exhaust gas flows from the rapid flow portion to the slow flow portion, the flow velocity of the exhaust gas in the slow flow portion is decreased because the pipe diameter of the slow flow portion is larger than that of the rapid flow portion. When the waste gas passes through the slow flow part, because the distances between two adjacent moving rings or between the adjacent fixed ring and the moving ring are smaller than the particle size of rubber powder particles, the rubber powder particles can be intercepted by the moving rings and the fixed rings. The power unit can drive one of them shifting ring after starting to rotate, and when the shifting ring rotated, the slider on it can slide in rather than adjacent spout, and the slider can be scraped the rubber powder of being stained with between two shifting rings and gluing. Meanwhile, the sliding groove is in an unclosed annular shape, so that after the sliding block moves to the limit position, the sliding block can drive the adjacent moving rings to rotate, and therefore rubber powder particles adhered between all the moving rings can be scraped by the sliding block.

The beneficial effect of this basic scheme lies in: 1. if the velocity of flow of waste gas is too fast, the rubber powder granule possesses elasticity, so when rubber powder granule flow direction shift ring, the rubber powder granule can take place deformation then the clearance between the rethread shift ring, and in this scheme, the flow rate that the portion of slowly flowing can reduce waste gas avoids the rubber powder granule to pass through the shift ring. 2. The rubber powder can be intercepted to the shift ring and solid fixed ring, and the slider can scrape the rubber powder in the space between the shift ring simultaneously, avoids the rubber powder to block up the space between the shift ring.

Further, the power unit comprises a blade shaft and a fixing plate, the blade shaft is rotatably connected in the torrent part, one end of the blade shaft is provided with a pneumatic blade, the other end of the blade shaft is radially and fixedly provided with a support rod, a slide rod is fixedly arranged on the support rod, and the slide rod is parallel to the blade shaft; the fixed plate is vertically and fixedly arranged in the torrent part, one side of the fixed plate, which faces the blade shaft, is provided with a gear shaft and a rack, the gear shaft is rotatably connected to the fixed plate, the gear shaft is provided with a gear, the gear shaft is concentric with the movable ring, one end of the gear shaft, which is close to the movable ring, is provided with a connecting rod, and the connecting rod is fixedly connected with one of the movable rings; the rack is vertically and slidably connected to the fixing plate, the rack is meshed with the gear, a guide plate is fixedly arranged on the rack, a first through groove in a rounded rectangular shape is formed in one side, facing the leaf shaft, of the guide plate, and the sliding rod is inserted into the first through groove. When waste gas passes through the torrent part, the pneumatic blades can be driven to rotate, the pneumatic blades drive the blade shafts to rotate, the blade shafts drive the supporting rods to revolve around the blade shafts, the supporting rods can reciprocate in the first through grooves and drive the guide plates and the racks to reciprocate, the racks drive the gears to continuously rotate in a clockwise and anticlockwise alternating manner, the gears drive the gear shafts, the connecting rods and one of the moving rings to rotate, and the moving rings also continuously rotate in a clockwise and anticlockwise alternating manner. After the shift ring clockwise turning, all sliders all rotated extreme position, so can not take place relative displacement but rotate simultaneously between slider and the shift ring this moment, and in this scheme, the shift ring can anticlockwise rotation, so the shift ring can drive the slider again with the rubber powder between the shift ring scrape down.

Furthermore, one of the moving rings is provided with a scraping rod which is propped against the fixed ring and all the moving rings. This scheme of adoption, when the shift ring rotated, the pole of scraping can also all scrape down the rubber powder of shift ring adhesion on towards rachis one side.

Furthermore, an impurity removing unit is arranged on the slow flow part and comprises a second through groove and a groove, the second through groove is arranged at the bottom of the slow flow part and is close to the screening unit, a U-shaped pipe is arranged at the bottom of the second through groove, a screen is arranged in the U-shaped pipe, one end of the U-shaped pipe is communicated with the second through groove, the other end of the U-shaped pipe is communicated with the rapid flow part, a first spring is arranged in one end of the U-shaped pipe, one end of the first spring is fixedly connected with the inner wall of the U-shaped pipe, and the other end of the first spring is fixedly connected with a conical plunger capable of plugging the U-shaped pipe; the recess sets up the one end that is close to the exhaust duct inner wall on scraping the pole, and the rigid coupling has the second spring on the inner wall of recess, and the one end of keeping away from the recess on the second spring is equipped with the kicking block, the both sides of kicking block are equipped with the scarf, and the kicking block can insert the second and lead to the groove in. When the groove on the scraping rod does not move to the position of the second through groove, the ejector block is blocked by the inner wall of the slow flow portion and cannot be ejected out, when the groove moves to the position of the second through groove, the ejector block is ejected out and extends into the groove, the ejector block pushes the plunger U-shaped pipe, waste gas can enter the U-shaped pipe through the second through groove, the scraped rubber powder can fall into the U-shaped pipe, and a large amount of rubber powder is prevented from blocking the screening unit.

Further, a heat exchange pipe is wound on the U-shaped pipe, and cold water is introduced into the heat exchange pipe. This scheme of adoption, the heat exchange tube can reduce the temperature of waste gas, rubber powder in the U type pipe, avoids rubber powder to block up the screen cloth.

Furthermore, an elastic pad is arranged on the outer wall of the sliding block. When the slider slides in the spout, can bump the noise production with the spout when the slider slides extreme position, this scheme of adoption, the cushion can the noise abatement effectively.

Drawings

FIG. 1 is a schematic view showing an exhaust system used in a rubber waste heat crushing process according to an embodiment;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a sectional view taken in the direction B-B in fig. 1.

Detailed Description

The present invention will be described in further detail below by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises an exhaust pipeline 1, a rapid flow part 2, a blade shaft 3, a wind blade 4, a support rod 5, a sliding rod 6, a fixing plate 7, a rack 8, a guide plate 9, a first through groove 10, a gear 11, a gear shaft 12, a connecting rod 13, a slow flow part 14, a fixing ring 15, a sliding groove 16, a moving ring 17, a sliding block 18, a scraping rod 19, a groove 20, a second spring 21, a top block 22, a U-shaped pipe 24, a first spring 25, a plunger 26, a screen 27, an outlet pipe 28 and a valve 29.

As shown in FIG. 1, the exhaust system for heating and crushing the rubber waste of the present embodiment comprises an exhaust pipe 1, wherein the exhaust pipe 1 is provided with a slow flow part 14 and a fast flow part 2, the slow flow part 14 is communicated with the fast flow part 2, the pipe diameter of the slow flow part 14 is larger than that of the fast flow part 2, and the slow flow part 14 is located in the middle part of the fast flow part 2.

Be equipped with power pack in torrent portion 2, power pack includes rachis 3 and fixed plate 7, fixedly on the inner wall of torrent portion 2 being equipped with the dead lever, is equipped with the bearing on the dead lever, and concentric rigid coupling has rachis 3 on the inner circle of bearing, and rachis 3 is parallel with the axial of torrent portion 2. The left end of the blade shaft 3 is provided with a pneumatic blade 4, the right end of the blade shaft 3 is radially and fixedly provided with a support rod 5, the support rod 5 is fixedly provided with a slide rod 6, and the slide rod 6 is parallel to the blade shaft 3. Fixed plate 7 is fixed to be set up on the inner wall of torrent portion 2, and fixed plate 7 is located the right side of slide bar 6, the left side of fixed plate 7 is rotated and is connected with gear shaft 12 and vertical sliding connection has rack 8, the fixed gear 11 that is equipped with on the gear shaft 12, combine figure 2, gear 11 and rack 8 meshing, gear shaft 12 is concentric with shift ring 17, the fixed coaxial connecting rod 13 that is equipped with of right-hand member of gear shaft 12, connecting rod 13 and the shift ring 17 rigid coupling of most central department, the fixed deflector 9 that is equipped with on the rack 8, one side level towards rachis 3 is equipped with the first logical groove 10 of fillet rectangle shape on the deflector 9, slide bar 6 inserts in the first logical groove 10.

With reference to fig. 3, a screening unit is vertically arranged in the slow flow portion 14 and comprises a fixed ring 15 and five moving rings 17 with uniformly reduced outer diameters, all the moving rings 17 and the fixed ring 15 are concentrically arranged, the distance between every two adjacent moving rings 17 is smaller than the particle size of rubber powder particles, and the distance between the outermost moving ring 17 and the fixed ring 15 is smaller than the particle size of the rubber powder particles. The fixed ring 15 is concentrically and fixedly arranged on the inner wall of the slow flow part 14, the inner walls of the moving ring 17 and the fixed ring 15 are concentrically provided with an unclosed annular sliding groove 16, the outer walls of all the moving rings 17 are fixedly provided with sliding blocks 18, the outer walls of the sliding blocks 18 are provided with elastic pads, and the sliding blocks 18 are slidably connected in the sliding grooves 16 of the moving rings 17 on the outer sides of the sliding blocks 18. The shift ring 17 of most central department is discoid, and is fixed on it and is equipped with scrapes pole 19, scrapes pole 19 and all shift rings 17 and the left side wall of solid fixed ring 15 and all offsets, scrapes the one end that is close to the pipe wall of slow flow portion 14 on the pole 19 and is equipped with recess 20, has set firmly second spring 21 on the inner wall of recess 20, and the lower extreme of second spring 21 has set firmly kicking block 22, and the both sides of kicking block 22 are equipped with the scarf.

The slow flow portion 14 is further provided with a trash removal unit which comprises a second through groove, and the second through groove is formed in the bottom of the slow flow portion 14, is located on the left side of the fixing ring 15 and is close to the fixing ring 15. The bottom of the second through groove is provided with a U-shaped pipe 24, a screen 27 is arranged in the U-shaped pipe 24, the left end of the U-shaped pipe 24 is conical and is communicated with the second through groove, and the right end of the U-shaped pipe 24 is communicated with the rapid flow part 2. A first spring 25 is vertically fixed in the left end of the U-shaped pipe 24, and a conical plunger 26 capable of blocking the U-shaped pipe 24 is fixedly connected to the upper end of the first spring 25. An outlet pipe 28 is communicated with the bottom of the middle part of the U-shaped pipe 24, a valve 29 is arranged on the outlet pipe 28, a heat exchange pipe is further wound in the middle part of the U-shaped pipe 24, and cold water is continuously introduced into the heat exchange pipe. The top block 22 can be inserted into the left end of the U-tube 24 and push the plunger 26 downward.

In specific implementation, when the exhaust gas enters the torrent part 2 and the blowing moving blade 4 rotates, the pneumatic blade 4 drives the blade shaft 3 to rotate, the blade shaft 3 drives the sliding rod 6 to revolve around the blade shaft 3 as a center, the sliding rod 6 moves annularly in the first through groove 10 and drives the guide plate 9 to reciprocate up and down continuously, the guide plate 9 drives the rack 8 to reciprocate up and down continuously, the rack 8 drives the gear 11 to rotate clockwise and anticlockwise continuously, the gear 11 drives the connecting rod 13 to rotate clockwise and anticlockwise, the connecting rod 13 drives the centremost moving ring 17 to rotate, and when the centremost moving ring 17 rotates, the sliding block 18 can slide in the sliding groove 16 of the moving ring 17 of the second layer, when the sliding block 18 slides to the limit position, the moving ring 17 of the second layer is driven to rotate, as a result, eventually all the sliders 18 and the shift ring 17 rotate, and when the connecting rod 13 rotates in the opposite direction, the shift ring 17 repeats the above-described movement pattern again. After the waste gas enters the slow flow part 14, the flow speed is reduced, rubber powder particles are intercepted by the moving rings 17 and the fixing rings 15, and when the sliding blocks 18 slide in the sliding grooves 16, the rubber powder between the two adjacent moving rings 17 can be scraped. Meanwhile, the moving ring 17 at the most central position can also drive the scraping rod 19 to rotate, when the end part of the scraping rod 19 provided with the groove 20 moves to the second through groove, the ejector block 22 pops up and pushes the plunger 26 to move downwards, at the moment, waste gas can drive rubber powder to enter the U-shaped pipe 24, the rubber powder is intercepted by the screen 27 in the U-shaped pipe 24, the waste gas enters the torrent part 2 from the U-shaped pipe 24, meanwhile, the heat exchange pipe can reduce the temperature of the waste gas, the temperature of rubber powder particles is reduced, and the rubber powder particles are prevented from being adhered to the screen 27. When the top block 22 is separated from the second through groove, the rubber powder particles in the U-shaped pipe 24 can be discharged by opening the valve 29.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. Rubber discarded object heats broken in-process and uses exhaust system, including exhaust duct, its characterized in that: the device comprises an exhaust pipeline, a flow slowing part, a flow rapid part and a screening unit, wherein the flow slowing part is communicated with the flow rapid part, the pipe diameter of the flow slowing part is larger than that of the flow rapid part, the screening unit is vertically arranged in the flow slowing part and comprises a fixing ring and a plurality of moving rings, the fixing ring is concentrically and fixedly arranged on the inner wall of the flow slowing part, all the moving rings and the fixing ring are concentrically arranged, the outer diameters of the moving rings are sequentially reduced from outside to inside, the distance between every two adjacent moving rings or between every two adjacent fixing rings and the moving rings is smaller than the particle size of rubber powder particles, unclosed annular sliding grooves are concentrically formed in the inner walls of all the moving rings and the fixing rings, sliding blocks are fixedly arranged on the outer walls of all the moving rings, and the sliding blocks are slidably connected in the adjacent sliding grooves; the power unit capable of driving one of the moving rings to rotate is arranged in the torrent part and comprises a blade shaft and a fixed plate, the blade shaft is rotatably connected in the torrent part, one end of the blade shaft is provided with a pneumatic blade, the other end of the blade shaft is radially and fixedly provided with a support rod, a slide rod is fixedly arranged on the support rod, and the slide rod is parallel to the blade shaft; the fixed plate is vertically and fixedly arranged in the torrent part, one side of the fixed plate, which faces the blade shaft, is provided with a gear shaft and a rack, the gear shaft is rotatably connected to the fixed plate, the gear shaft is provided with a gear, the gear shaft is concentric with the movable ring, one end of the gear shaft, which is close to the movable ring, is provided with a connecting rod, and the connecting rod is fixedly connected with one of the movable rings; the rack is vertically and slidably connected to the fixing plate, the rack is meshed with the gear, a guide plate is fixedly arranged on the rack, a first through groove in a rounded rectangular shape is formed in one side, facing the leaf shaft, of the guide plate, and the sliding rod is inserted into the first through groove.

2. The exhaust system for rubber waste heating and crushing process according to claim 1, wherein: and a scraping rod is arranged on one of the moving rings and is abutted against the fixed ring and all the moving rings.

3. The exhaust system for rubber waste heating and crushing process according to claim 2, wherein: the trash removal device comprises a flow slowing part, a trash removal unit and a screening unit, wherein the flow slowing part is provided with the trash removal unit, the trash removal unit comprises a second through groove and a groove, the second through groove is formed in the bottom of the flow slowing part and is close to the screening unit, the bottom of the second through groove is provided with a U-shaped pipe, a screen is arranged in the U-shaped pipe, one end of the U-shaped pipe is communicated with the second through groove, the other end of the U-shaped pipe is communicated with the rapid flow part, a first spring is arranged in one end of the U-shaped pipe, one end of the first spring is fixedly connected with the inner wall of the U-shaped pipe, and the other end; the recess sets up the one end that is close to the exhaust duct inner wall on scraping the pole, and the rigid coupling has the second spring on the inner wall of recess, and the one end of keeping away from the recess on the second spring is equipped with the kicking block, the both sides of kicking block are equipped with the scarf, and the kicking block can insert the second and lead to the groove in.

4. The exhaust system for rubber waste heating and crushing process according to claim 3, wherein: and the U-shaped pipe is wound with a heat exchange pipe, and cold water is introduced into the heat exchange pipe.

5. The exhaust system for rubber waste heating and crushing process according to claim 4, wherein: and an elastic cushion is arranged on the outer wall of the sliding block.