Rubber devulcanization plasticization grading granulation device and method

Abstract

The application discloses a rubber devulcanization plasticization grading granulating device and method, and belongs to the field of rubber devulcanization granulation. The rubber devulcanization plasticization grading granulating device comprises a devulcanization tank and a granulator, and further comprises: a discharge port and a waste gas pipe which are communicated with the devulcanization tank, wherein the waste gas pipe is provided with a dust removal mechanism and a dehumidification mechanism, and is used for dust removal and dehumidification of waste gas generated in the devulcanization; in addition, the dehumidification mechanism and the dust removal mechanism are communicated through a pipeline; a feeding hopper is arranged on the granulator, and a communication pipe is communicated between the feeding hopper and the discharge port; a driving unit is arranged between the outer side wall of the devulcanization tank and the outer side wall of the feeding hopper; and a screening unit is arranged in the feeding hopper. The application can overcome the problems of low waste gas purification efficiency, influence on the operation of the purification device, high waste gas purification cost and low rubber recovery efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rubber devulcanization and granulation, and particularly relates to a rubber devulcanization, plasticization and grading granulation device and method. BACKGROUND

[0002] Rubber needs to be vulcanized before use to have certain elasticity, and when the rubber is recycled, the vulcanized rubber needs to be devulcanized to have certain plasticity, and then granulated for reuse, which can replace rubber and alleviate the shortage of natural rubber, and also realizes the recycling of waste rubber and solves the problem of waste rubber pollution.

[0003] At present, a large amount of waste gas is generated during the devulcanization of rubber, including dust, water vapor and harmful gas, among which the dust and water vapor are difficult to be effectively treated, affecting the purification efficiency of the waste gas, the normal operation of the waste gas purification device, the efficiency of the purification device and the purification cost of the waste gas. SUMMARY

[0004] The present application aims to solve the problems of low waste gas purification efficiency, affecting the operation of the purification device, high waste gas purification cost and low rubber recycling efficiency in the prior art, and provides a rubber devulcanization, plasticization and grading granulation device and method.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0006] A rubber devulcanization, plasticization and grading granulation device, comprising a devulcanization tank and a granulator, further comprising: a discharge port and a waste gas pipe connected to the devulcanization tank, wherein the waste gas pipe is provided with a dust removal mechanism and a dehumidification mechanism for dust removal and dehumidification of the waste gas generated during devulcanization, and the dehumidification mechanism and the dust removal mechanism are connected by a pipeline; a feed hopper provided on the granulator, wherein the feed hopper and the discharge port are connected by a communication pipe, and a driving unit is arranged between the outer wall of the devulcanization tank and the outer wall of the feed hopper, a screening unit is arranged in the feed hopper, and the dehumidification mechanism can drive part of the structure of the screening unit to rotate by the driving unit for screening impurities in the rubber.

[0007] In order to facilitate the dust in the exhaust gas treatment, preferably, the dust removal mechanism includes sliding connection in the exhaust pipe of dustproof plate, the exhaust pipe near the dustproof plate side fixedly connected with waterproof ring, the waterproof ring and dustproof plate between fixedly connected with multiple groups of connecting cylinder and first spring, the first spring sleeve connected outside the connecting cylinder, the exhaust pipe bottom near the dustproof plate side is provided with dust removal port, the exhaust pipe near the dust removal port side detachably connected with dust collection box, wherein, the dustproof plate and the inner wall of the exhaust pipe are fitted, the dust removal port is inclined, the waterproof ring is inclined, the exhaust pipe near the dustproof plate side is provided with cleaning mechanism, for cleaning the dustproof plate.

[0008] In order to facilitate the dust in the exhaust gas treatment, preferably, the dust removal mechanism includes sliding connection in the exhaust pipe of dustproof plate, the exhaust pipe near the dustproof plate side fixedly connected with waterproof ring, the waterproof ring and dustproof plate between fixedly connected with multiple groups of connecting cylinder and first spring, the first spring sleeve connected outside the connecting cylinder, the exhaust pipe bottom near the dustproof plate side is provided with dust removal port, the exhaust pipe near the dust removal port side detachably connected with dust collection box, wherein, the dustproof plate and the inner wall of the exhaust pipe are fitted, the dust removal port is inclined, the waterproof ring is inclined, the exhaust pipe near the dustproof plate side is provided with cleaning mechanism, for cleaning the dustproof plate.

[0009] In order to facilitate the dust in the exhaust gas treatment, preferably, the dust removal mechanism includes sliding connection in the exhaust pipe of dustproof plate, the exhaust pipe near the dustproof plate side fixedly connected with waterproof ring, the waterproof ring and dustproof plate between fixedly connected with multiple groups of connecting cylinder and first spring, the first spring sleeve connected outside the connecting cylinder, the exhaust pipe bottom near the dustproof plate side is provided with dust removal port, the exhaust pipe near the dust removal port side detachably connected with dust collection box, wherein, the dustproof plate and the inner wall of the exhaust pipe are fitted, the dust removal port is inclined, the waterproof ring is inclined, the exhaust pipe near the dustproof plate side is provided with cleaning mechanism, for cleaning the dustproof plate.

[0010] In order to facilitate the dust in the exhaust gas treatment, preferably, the dust removal mechanism includes sliding connection in the exhaust pipe of dustproof plate, the exhaust pipe near the dustproof plate side fixedly connected with waterproof ring, the waterproof ring and dustproof plate between fixedly connected with multiple groups of connecting cylinder and first spring, the first spring sleeve connected outside the connecting cylinder, the exhaust pipe bottom near the dustproof plate side is provided with dust removal port, the exhaust pipe near the dust removal port side detachably connected with dust collection box, wherein, the dustproof plate and the inner wall of the exhaust pipe are fitted, the dust removal port is inclined, the waterproof ring is inclined, the exhaust pipe near the dustproof plate side is provided with cleaning mechanism, for cleaning the dustproof plate.

[0011] In order to facilitate the dust in the exhaust gas treatment, preferably, the dust removal mechanism includes sliding connection in the exhaust pipe of dustproof plate, the exhaust pipe near the dustproof plate side fixedly connected with waterproof ring, the waterproof ring and dustproof plate between fixedly connected with multiple groups of connecting cylinder and first spring, the first spring sleeve connected outside the connecting cylinder, the exhaust pipe bottom near the dustproof plate side is provided with dust removal port, the exhaust pipe near the dust removal port side detachably connected with dust collection box, wherein, the dustproof plate and the inner wall of the exhaust pipe are fitted, the dust removal port is inclined, the waterproof ring is inclined, the exhaust pipe near the dustproof plate side is provided with cleaning mechanism, for cleaning the dustproof plate.

[0012] In order to facilitate the addition of rubber after desulfurization to the granulator, further, the screening unit comprises a plurality of sets of vibration cylinders fixedly connected inside the feed hopper, the top end of the vibration cylinder is fixedly connected with a sieve plate matched with the inner wall of the feed hopper, a residue discharge port is formed on one side of the feed hopper close to the sieve plate, and a collection frame is fixedly connected on one side of the feed hopper close to the residue discharge port, wherein the shaft of the water turbine extending into the feed hopper is fixedly connected with a cam, the cam is located at the center position below the sieve plate, the vibration cylinder is elastic, and the vibration cylinder is connected with part of the connecting cylinder and the pneumatic motor through a pipeline.

[0013] In order to facilitate the cleaning of impurities in the rubber, further, a uniform distribution roller and a residue discharge roller rotatably connected inside the feed hopper are further included, a second linkage wheel is fixedly connected on the uniform distribution roller and the residue discharge roller, a second belt is sleeved between the two sets of second linkage wheels, wherein the uniform distribution roller is connected with the shaft of one set of first linkage wheels, the uniform distribution roller is close to the communication pipe, and the residue discharge roller is close to the residue discharge port.

[0014] In order to ensure the stability of rubber desulfurization and control the granulation speed of rubber, preferably, the top of the desulfurization tank is communicated with a feed inlet, the feed inlet adopts a flange connection mode for sealing during rubber desulfurization, and a control valve is arranged on the communication pipe for controlling the addition speed of rubber into the feed hopper after desulfurization is completed.

[0015] A granulation method of a rubber desulfurization and plasticization grading granulation device, comprising the following steps:

[0016] Step one: adding the crushed rubber into the desulfurization tank to perform desulfurization treatment on the rubber by the desulfurization tank;

[0017] Step two: during the desulfurization process, the generated waste gas enters the waste gas pipe, and first, the dust in the waste gas is treated and collected by the dust removal mechanism;

[0018] Step three: as the waste gas flows in the waste gas pipe, the water vapor in the waste gas is treated and collected by the dehumidification mechanism, and in the process of collection, the dust removal mechanism is vibrated to accelerate the collection of dust and avoid the blockage of the dust removal mechanism;

[0019] Step four: after the desulfurization is completed, the rubber is added to the feed hopper, the collected water vibrates the screening unit by the driving unit, and the impurities in the rubber are collected at the same time;

[0020] Step five: while screening the rubber, the dust removal mechanism is driven to rotate to thoroughly clean the dust adhered to the dust removal mechanism for subsequent treatment of waste gas.

[0021] Compared with the prior art, the rubber devulcanization plasticization grading granulation device and method have the following beneficial effects:

[0022] 1. The rubber devulcanization plasticization grading granulation device can treat the dust in the waste gas generated in the rubber devulcanization process through the dust removal mechanism, thereby ensuring the flow efficiency of the waste gas in the waste gas pipe, reducing the damage of the dust to the environment and human health, avoiding the adhesion of the waste gas to the inner wall of the waste gas pipe in the flow process, further improving the purification effect of the waste gas, and avoiding the influence of the dust on the purification device.

[0023] 2. The rubber devulcanization plasticization grading granulation device can liquefy and collect the water vapor in the waste gas through the dehumidification mechanism, and compress the gas intermittently to drive the dust removal mechanism to vibrate, thereby avoiding the blockage of the dust removal mechanism when collecting the dust, improving the purification effect of the waste gas, reducing the complexity and difficulty of waste gas treatment, and reducing the cost of waste gas purification.

[0024] 3. The rubber devulcanization plasticization grading granulation device drives the driving unit to rotate through the collected water, and drives the screening unit to vibrate, thereby avoiding the blockage of the rubber after devulcanization during granulation, improving the granulation efficiency of the rubber, and cleaning the dust removal mechanism through the vibration of the screening unit to facilitate subsequent devulcanization of the rubber. In addition, the screening efficiency of the rubber and the collection of impurities are accelerated through the equal division roller and the slag discharge roller.

[0025] The parts not involved in the device are the same as or can be realized by the prior art. The present application can overcome the problems of low waste gas purification efficiency, influence on the operation of the purification device, high waste gas purification cost, and low rubber recovery efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 Structure diagram of a rubber devulcanization plasticization grading granulation device according to the present application Figure 1 ;

[0027] Figure 2 Structure diagram of a rubber devulcanization plasticization grading granulation device according to the present application Figure 2 ;

[0028] Figure 3 Cross-sectional structure diagram of a waste gas pipe in a rubber devulcanization plasticization grading granulation device according to the present application

[0029] Figure 4 Cross-sectional structure diagram of a feed hopper in a rubber devulcanization plasticization grading granulation device according to the present application

[0030] Figure 5 A rubber devulcanization plasticization grading granulation device Figure 2 Structure diagram of part A in the middle;

[0031] Figure 6 A rubber devulcanization plasticization grading granulation device Figure 3 Structure diagram of part B in the middle;

[0032] Figure 7 A rubber devulcanization plasticization grading granulation device Figure 3 Structure diagram of part C in the middle.

[0033] In the figure: 1, devulcanization tank; 2, driving motor; 3, granulator; 4, feed inlet; 5, discharge outlet; 6, exhaust pipe; 7, feed hopper; 8, communication pipe; 9, control valve; 10, dust removal mechanism; 101, dustproof plate; 102, waterproof ring; 103, connecting cylinder; 104, first spring; 105, dust removal port; 106, dust collection box; 107, pneumatic motor; 108, fixed plate; 109, cross shaft; 1010, linkage bevel gear set; 1011, scraper; 11, condenser; 12, dehumidification mechanism; 121, mist barrier; 122, drain; 123, transition box; 124, baffle; 125, sealing element; 126, second spring; 127, compression cylinder; 13, tail gas purifier; 14, water storage tank; 15, connecting pipe; 16, water turbine; 17, first linkage wheel; 18, first belt; 19, cam; 20, vibration cylinder; 21, sieve plate; 22, equal division roller; 23, deslagging roller; 24, second linkage wheel; 25, second belt; 26, deslagging port; 27, collection frame. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments.

[0035] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0036] Example one:

[0037] Reference Figures 1-7The utility model relates to a rubber devulcanization plasticization grading granulating device, including devulcanization jar 1 and granulator 3 still are provided with the drive motor 2 connected with granulator 3, and devulcanization jar 1 and granulator 3 are all conventional means in prior art, and the specific structure can refer to the technical scheme in prior art, therefore not make superfluous repetition, still include: the discharge gate 5 and waste gas pipe 6 are connected in devulcanization jar 1, wherein, waste gas pipe 6 is provided with dust removal mechanism 10 and dehumidification mechanism 12, is used for carrying out dust removal and dehumidification to the waste gas of devulcanization, in addition, dehumidification mechanism 12 and dust removal mechanism 10 are communicated through pipeline, the feed inlet 7 of being provided on granulator 3, and the communication pipe 8 is communicated between feed inlet 7 and discharge gate 5, wherein, the outside wall of devulcanization jar 1 and the outside wall of feed inlet 7 are provided with drive unit, the inside of feed inlet 7 is provided with screening unit, and dehumidification mechanism 12 can drive the partial structure rotation of screening unit through drive unit, is used for screening the impurity in rubber.

[0038] Referring to Figure 3 And Figure 6 Dust removal mechanism 10 includes dustproof plate 101 slidingly connected in waste gas pipe 6, and the side close to dustproof plate 101 of waste gas pipe 6 is fixedly connected with waterproof ring 102, a plurality of connecting cylinders 103 and first springs 104 are fixedly connected between waterproof ring 102 and dustproof plate 101, first spring 104 is sleeved on the outside of connecting cylinder 103, dust removal port 105 is formed in the bottom of waste gas pipe 6 close to dustproof plate 101, and dust collection box 106 is detachably connected to the side close to dust removal port 105 of waste gas pipe 6, wherein, dustproof plate 101 is attached to the inner side wall of waste gas pipe 6, dust removal port 105 is inclined, waterproof ring 102 is inclined, and cleaning mechanism is arranged on the side close to dustproof plate 101 of waste gas pipe 6 for cleaning dustproof plate 101.

[0039] When the waste gas flows in waste gas pipe 6, dustproof plate 101 can intercept the dust in the waste gas, and since dustproof plate 101 is close to devulcanization jar 1, the temperature is high, and the water vapor in the waste gas will not be liquefied, in addition, the moisture after liquefaction will not contact dustproof plate 101 under the action of waterproof ring 102, that is, the dust will not be wet and adsorbed on dustproof plate 101, and when intercepting the dust, the dustproof plate 101 can be vibrated by the extension and contraction of the connecting cylinder 103, so as to avoid the dust from being blocked.

[0040] Referring to Figure 6The cleaning mechanism comprises a pneumatic motor 107 fixedly connected to the outer side wall of the exhaust pipe 6, the output end of the pneumatic motor 107 extending to the inside of the exhaust pipe 6, a fixed plate 108 fixedly connected to the inner wall of the exhaust pipe 6, a horizontal shaft 109 rotatably connected to the fixed plate 108, a linkage bevel gear set 1010 arranged between the horizontal shaft 109 and the output end of the pneumatic motor 107, a scraper 1011 fixedly connected to the end of the horizontal shaft 109 away from the linkage bevel gear set 1010, and the scraper 1011 abutting the dustproof plate 101.

[0041] After the rubber devulcanization is completed, the pneumatic motor 107 is driven to rotate during the rubber granulation, the linkage bevel gear set 1010 drives the scraper 1011 to rotate on the dustproof plate 101, the dust adhered to the dustproof plate 101 is scraped off, and finally collected in the dust collecting box 106, which not only improves the purification efficiency of the exhaust gas, but also facilitates the recycling of the dust, and reduces the damage of the dust to the environment and the human body.

[0042] Referring to Figure 3 and Figure 7 The dehumidifying mechanism 12 comprises a mist blocking plate 121 fixedly connected to the inner wall of the exhaust pipe 6, a drainage opening 122 is formed in the bottom of the exhaust pipe 6 near one side of the mist blocking plate 121, a transition box 123 is detachably connected to the outer wall of the exhaust pipe 6 near the drainage opening 122, a baffle 124 is rotatably connected in the inside of the transition box 123, a sealing element 125 is fixedly connected to one side of the transition box 123 near the baffle 124, a second spring 126 is fixedly connected between the baffle 124 and the bottom of the transition box 123, and a compressed air cylinder 127 is fixedly connected to the bottom of the transition box 123, wherein the drainage opening 122 is located below the mist blocking plate 121, the sealing element 125 abuts the baffle 124, the compressed air cylinder 127 is connected in communication with the part of the connecting air cylinder 103 through a pipeline, and the exhaust pipe 6 is provided with a condenser 11 arranged on the outer wall of the exhaust pipe 6, the condenser 11 is located between the waterproof ring 102 and the mist blocking plate 121, and the exhaust pipe 6 is provided with a tail gas purifier 13 away from the devulcanization tank 1.

[0043] It should be explained that the specific structure of the fog baffle 121 and the condenser 11 can be referred to the technical solutions in the prior art, which will be known to those skilled in the art, and will not be elaborated here. Since the exhaust gas is in a flowing state when passing through the condenser 11, the water vapor near the condenser 11 can quickly condense into water droplets, while the water vapor away from the condenser 11 can remain in a mist and continue to flow with the exhaust gas. The fog baffle 121 can intercept and collect the misty water, and finally collect it into the transition box 123. In addition, when the water is collected, it will first fall onto the baffle 124, causing the water to condense into clumps to reduce the evaporation of water. When the water on the baffle 124 reaches a certain amount, it flows to the bottom of the transition box 123 and is finally collected into the water storage tank 14. At the same time, the gas is intermittently compressed by the compression cylinder 127 and introduced into the connecting cylinder 103, which drives the connecting cylinder 103 to intermittently extend and contract. In addition, the type of exhaust gas purifier 13 is not limited, and the exhaust gas can be treated by adsorption, combustion, or absorption methods.

[0044] Reference Figure 2 and Figure 5 The drive unit includes a water storage tank 14 fixedly connected to the outer wall of the desulfurization tank 1. The top of the water storage tank 14 is connected to the transition box 123 through a pipe. A water turbine 16 is fixedly connected to the outer wall of the feed hopper 7. A connecting pipe 15 connects the water turbine 16 and the water storage tank 14. The output end of the water turbine 16 extends into the interior of the feed hopper 7. First linkage wheels 17 are fixedly connected to the outer wall of the feed hopper 7 and the output shaft of the water turbine 16. A first belt 18 is sleeved between the two sets of first linkage wheels 17.

[0045] It should be explained that, since the height of the desulfurization tank 1 is much higher than that of the granulator 3, the water in the storage tank 14 has a large gravitational potential energy. When the water flows to the water turbine 16 through the connecting pipe 15, it can drive the water turbine 16 to rotate, and the water can be recovered through the outlet of the water turbine 16. The specific structure of the water turbine 16 can be referred to the technical solutions in the prior art, which will be known to those skilled in the art, and will not be described in detail here. In addition, the flow of water can be controlled by setting a valve on the connecting pipe 15 (since the desulfurization tank 1 is in the working state when the granulator 3 is working, it is not possible to realize the flow of water while collecting water).

[0046] Reference Figure 4The screening unit includes a plurality of sets of vibrating cylinders 20 fixedly connected inside the feed hopper 7, the top end of the vibrating cylinder 20 is fixedly connected with a sieve plate 21 which is in close contact with the inner wall of the feed hopper 7, the side of the feed hopper 7 close to the sieve plate 21 is provided with a residue discharge port 26, and the side of the feed hopper 7 close to the residue discharge port 26 is fixedly connected with a collection frame 27, wherein the shaft of the water turbine 16 extending into the feed hopper 7 is fixedly connected with a cam 19, the cam 19 is located at the center position below the sieve plate 21, the vibrating cylinder 20 is elastic, and the vibrating cylinder 20 is connected with the connecting cylinder 103 and the pneumatic motor 107 through a pipeline, and further includes a uniform distribution roller 22 and a residue discharge roller 23 which are rotatably connected inside the feed hopper 7, the second linkage wheel 24 is fixedly connected to the uniform distribution roller 22 and the residue discharge roller 23, and the second belt 25 is sleeved between the two sets of second linkage wheels 24, wherein the uniform distribution roller 22 is connected with the shaft of one set of first linkage wheels 17, the uniform distribution roller 22 is close to the communication pipe 8, and the residue discharge roller 23 is close to the residue discharge port 26.

[0047] Since the rubber after desulfurization may contain impurities, the rubber needs to be screened before granulation. When the water turbine 16 rotates, the cam 19 drives the uniform distribution roller 22 to rotate, and then drives the residue discharge roller 23 to rotate through the second linkage wheel 24 and the second belt 25. When the rubber enters the feed hopper 7 through the communication pipe 8, the uniform distribution roller 22 can uniformly distribute the rubber to avoid the accumulation of rubber on the sieve plate 21, thereby improving the screening efficiency of the rubber. At the same time, the cam 19 drives the sieve plate 21 to vibrate, further improving the screening efficiency of the rubber, so as to facilitate the granulation of the rubber. It needs to be explained that the impurities in the rubber will stay on the sieve plate 21 and come into contact with the uniform distribution roller 22 through the vibration of the sieve plate 21. Under the action of centrifugal force, the impurities are thrown to the residue discharge roller 23 (there is a certain distance between the uniform distribution roller 22 and the residue discharge roller 23 and the sieve plate 21, which can reduce the amount of rubber thrown out), and then the impurities are thrown into the collection frame 27 through the residue discharge roller 23 for collection.

[0048] Referring to Figures 1-2 The top of the desulfurization tank 1 is communicated with a feed inlet 4 which is connected in a flange manner and is used for sealing during rubber desulfurization. The communication pipe 8 is provided with a control valve 9 for controlling the adding speed of rubber into the feed hopper 7 after desulfurization is completed.

[0049] When the rubber is desulfurized, the rubber powder and desulfurizing agent are added into the desulfurization tank 1 through the feed inlet 4, and the feed inlet 4 is sealed, which can prevent the waste gas generated during the desulfurization process from being directly discharged into the air.

[0050] Example two

[0051] A method for using a rubber desulfurization and plasticization grading and granulation device, comprising the following steps:

[0052] Step one: add the crushed rubber into the devulcanization tank 1, and carry out the devulcanization treatment on the rubber through the devulcanization tank 1;

[0053] During the devulcanization process, the devulcanization tank 1 is in a sealed state;

[0054] Step two: during the devulcanization process, the waste gas generated enters the waste gas pipe 6, and first passes through the dust removal mechanism 10 to treat and collect the dust in the waste gas;

[0055] The dust in the waste gas is intercepted on the dust removal mechanism 10 when flowing, and part of the dust is shaken off from the dustproof plate 101, and collected in the dust collection box 106;

[0056] Step three: as the waste gas flows in the waste gas pipe 6, the water vapor in the waste gas is treated and collected through the dehumidification mechanism 12, and in the process of collection, the dust removal mechanism 10 is vibrated to speed up the collection of dust and avoid the blockage of the dust removal mechanism 10;

[0057] When the waste gas passes through the condenser 11, the water vapor in the waste gas can be liquefied, and the moisture is collected through the dehumidification mechanism 12, and during the collection of moisture, the compressed gas is intermittently delivered to the dust removal mechanism 10 to vibrate the dustproof plate 101 and accelerate the falling of dust, thereby ensuring the stability of the waste gas flow;

[0058] Step four: after the devulcanization is completed, the rubber is added to the feeding hopper 7, the collected water is vibrated by the driving unit to drive the screening unit, and the impurities in the rubber are collected;

[0059] The gravity potential energy of the collected water is used to drive the screening unit to vibrate, accelerate the screening of the rubber, and improve the granulation efficiency of the rubber;

[0060] Step five: while screening the rubber, the dust removal mechanism 10 is driven to rotate to thoroughly clean the dust adhered to the dust removal mechanism 10, so as to facilitate the subsequent treatment of the waste gas.

[0061] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A rubber desulfurization, plasticizing, grading, and granulation device, comprising a desulfurization tank (1) and a granulator (3), characterized in that, Also includes: The discharge port (5) on the desulfurization tank (1) and the exhaust pipe (6) are connected. The exhaust pipe (6) is equipped with a dust removal mechanism (10) and a dehumidification mechanism (12) for removing dust and dehumidifying the exhaust gas generated by desulfurization. In addition, the dehumidification mechanism (12) and the dust removal mechanism (10) are connected by a pipe. The feed hopper (7) is installed on the granulator (3), and a connecting pipe (8) connects the feed hopper (7) and the discharge port (5). Among them, a driving unit is provided between the outer wall of the desulfurization tank (1) and the outer wall of the feed hopper (7), and a screening unit is provided inside the feed hopper (7). The dehumidification mechanism (12) can drive part of the structure of the screening unit to rotate through the driving unit, and is used to screen impurities in the rubber. The dust removal mechanism (10) includes a dustproof plate (101) slidably connected to the exhaust pipe (6). A waterproof ring (102) is fixedly connected to the side of the exhaust pipe (6) near the dustproof plate (101). Multiple sets of connecting cylinders (103) and a first spring (104) are fixedly connected between the waterproof ring (102) and the dustproof plate (101). The first spring (104) is sleeved on the outside of the connecting cylinder (103). A dust removal port (105) is opened on the bottom of the exhaust pipe (6) near the dustproof plate (101). A dust collection box (106) is detachably connected to the side of the exhaust pipe (6) near the dust removal port (105). The dustproof plate (101) is attached to the inner wall of the exhaust pipe (6), the dust removal port (105) is inclined, the waterproof ring (102) is inclined, and a cleaning mechanism is provided on the side of the exhaust pipe (6) near the dustproof plate (101) for cleaning the dustproof plate (101). The dehumidification mechanism (12) includes a fog baffle (121) fixedly connected to the inner wall of the exhaust pipe (6). A drain outlet (122) is provided on the bottom of the exhaust pipe (6) near the fog baffle (121). A transition box (123) is detachably connected to the outer wall of the exhaust pipe (6) near the drain outlet (122). A baffle (124) is rotatably connected inside the transition box (123). A sealing element (125) is fixedly connected to the side of the transition box (123) near the baffle (124). A second spring (126) is fixedly connected between the baffle (124) and the bottom of the transition box (123). A compression cylinder (127) is fixedly connected to the bottom of the transition box (123). The drain outlet (122) is located below the fog baffle (121), the seal (125) is in contact with the baffle (124), and the compressed cylinder (127) is connected to a portion of the connecting cylinder (103) via a pipe. The drive unit includes a water storage tank (14) fixedly connected to the outer wall of the desulfurization tank (1). The top of the water storage tank (14) is connected to the transition box (123) through a pipe. A water turbine (16) is fixedly connected to the outer wall of the feed hopper (7). A connecting pipe (15) connects the water turbine (16) and the water storage tank (14). The output end of the water turbine (16) extends into the interior of the feed hopper (7). The outer wall of the feed hopper (7) and the output shaft of the water turbine (16) are both fixedly connected with first linkage wheels (17). A first belt (18) is sleeved between the two sets of first linkage wheels (17). The screening unit includes multiple sets of vibrating cylinders (20) fixedly connected inside the feed hopper (7). The top of the vibrating cylinder (20) is fixedly connected to a screen plate (21) that fits against the inner wall of the feed hopper (7). A slag discharge port (26) is opened on the side of the feed hopper (7) near the screen plate (21). A collection frame (27) is fixedly connected on the side of the feed hopper (7) near the slag discharge port (26). The water turbine (16) has a cam (19) fixedly connected to the shaft extending into the feed hopper (7), and the cam (19) is located at the center below the screen plate (21).

2. The rubber desulfurization, plasticizing, grading, and granulation device according to claim 1, characterized in that, The cleaning mechanism includes a pneumatic motor (107) fixedly connected to the outer wall of the exhaust pipe (6). The output end of the pneumatic motor (107) extends into the interior of the exhaust pipe (6). A fixing plate (108) is fixedly connected to the inner wall of the exhaust pipe (6). A horizontal shaft (109) is rotatably connected to the fixing plate (108). A linkage bevel gear set (1010) is provided between the horizontal shaft (109) and the output end of the pneumatic motor (107). A scraper (1011) is fixedly connected to the end of the horizontal shaft (109) away from the linkage bevel gear set (1010). The scraper (1011) is in contact with the dustproof plate (101).

3. The rubber desulfurization, plasticizing, grading, and granulation device according to claim 1, characterized in that, It also includes a condenser (11) installed on the outer wall of the exhaust pipe (6), the condenser (11) being located between the waterproof ring (102) and the fog baffle (121), and a tail gas purifier (13) being installed at the end of the exhaust pipe (6) away from the desulfurization tank (1).

4. The rubber desulfurization, plasticizing, grading, and granulation device according to claim 2, characterized in that, The vibrating cylinder (20) is elastic, and the vibrating cylinder (20) is connected to the partially connected cylinder (103) and the pneumatic motor (107) through a pipe.

5. The rubber desulfurization, plasticizing, grading, and granulation device according to claim 4, characterized in that, It also includes a distribution roller (22) and a slag discharge roller (23) rotatably connected inside the feed hopper (7). A second linkage wheel (24) is fixedly connected to the distribution roller (22) and the slag discharge roller (23), and a second belt (25) is sleeved between the two sets of second linkage wheels (24). The equalizing roller (22) is connected to the shaft of one of the first linkage wheels (17), the equalizing roller (22) is close to the connecting pipe (8), and the slag discharge roller (23) is close to the slag discharge port (26).

6. The rubber desulfurization, plasticizing, grading, and granulation device according to claim 1, characterized in that, The top of the desulfurization tank (1) is connected to a feed inlet (4). The feed inlet (4) is connected by a flange and is used to seal the rubber during desulfurization. A control valve (9) is installed on the connecting pipe (8) to control the rate at which the rubber is added to the feed hopper (7) after desulfurization.

7. A granulation method comprising the rubber desulfurization, plasticizing, grading, and granulation apparatus according to any one of claims 1-6, characterized in that, It also includes the following steps: Step 1: Add the crushed rubber into the desulfurization tank (1) and desulfurize the rubber through the desulfurization tank (1); Step 2: During the desulfurization process, the generated waste gas enters the waste gas pipe (6), and the dust in the waste gas is first treated and collected by the dust removal mechanism (10); Step 3: As the exhaust gas flows in the exhaust pipe (6), the water vapor in the exhaust gas will be treated and collected by the dehumidification mechanism (12). During the collection process, the dust removal mechanism (10) will vibrate to accelerate the collection of dust and avoid the dust removal mechanism (10) from becoming blocked. Step 4: After desulfurization is completed, rubber is added to the feed hopper (7). The collected water drives the screening unit to vibrate through the drive unit, and at the same time, impurities in the rubber are collected. Step 5: While screening the rubber, the dust removal mechanism (10) can be driven to rotate to thoroughly clean the dust adhering to the dust removal mechanism (10) so as to facilitate the subsequent treatment of exhaust gas.

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