Thermal cracking rubber block conveying and feeding equipment

Abstract

The utility model provides thermal cracking rubber block conveying and feeding equipment, which belongs to the technical field of waste rubber and plastic treatment and comprises a conveying tank, an air supply component and a feeder. A rubber block containing space is defined by the inner side of a tank body of the conveying tank, and a conveying tank discharging opening is formed in the bottom of the conveying tank. The air supply assembly comprises a fan and an air supply pipeline with one end connected with the fan. The feeder further comprises a shell, a rotating shaft, a plurality of blades and a driving part. A cylindrical structure is defined by the inner side face of the shell. The side face of the shell is provided with a feeder feeding port connected with the conveying tank discharging port and a feeder air inlet connected with the other end of the air supply pipeline. The rotating shaft coincides with the central axis of the shell and is rotationally connected with the shell. The blades extend from one end of the shell to the other end of the shell in the direction of the rotating shaft and are evenly distributed in the circumferential direction of the rotating shaft. The waste tire conveying belt solves the technical problems that a belt is adopted to convey waste tires, so that the waste tires are difficult to move and raise dust at bending positions, and has the characteristic of high conveying efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste rubber and plastic processing, and particularly relates to a thermal cracking rubber block conveying and feeding device. Background Art

[0002] With the acceleration of industrialization, the number of automobiles manufactured is increasing, and people are replacing their vehicles more and more frequently. At the same time, the consumption and wear of automobile tires also generate a lot of garbage - waste tires. Waste tires include not only old tires replaced from motor vehicles that have lost their use value, but also discarded tires that do not meet the standards when they were produced in the factory. The generation of a large number of waste tires has brought great pressure to the environment and caused serious waste of resources.

[0003] Pyrolysis of waste tires refers to an irreversible thermochemical reaction in which organic matter in waste tires is cracked by high temperature in an oxygen-free or oxygen-deficient atmosphere, volatile products are released and solid coke is formed. Gas, liquid and solid products can be formed during the incomplete thermal degradation process. This method can completely crack waste tires into useful products such as pyrolysis oil, pyrolysis carbon black and pyrolysis non-condensable gas. However, in the existing pyrolysis process, belts are generally used to transport waste tires, which has the disadvantages of being difficult to move in bends, occupying a large area, requiring high maintenance, and being more prone to leakage and dust during transportation. Utility Model Content

[0004] Details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent.

[0005] The utility model provides a pyrolysis rubber block conveying and feeding device, which solves the technical problems of difficulty in moving in a curved area and raising dust when conveying waste tires with a belt, and has the characteristics of high conveying efficiency.

[0006] The utility model discloses a pyrolysis rubber block conveying and feeding device, comprising a conveying tank, an air supply component, and a feeder; the inner side of the tank body of the conveying tank is surrounded by a rubber block accommodating space, and a conveying tank discharge port is provided at the bottom; the air supply component comprises a fan, and an air supply duct connected to the fan at one end; the feeder further comprises a shell, a rotating shaft, a plurality of blades, and a driving member; the inner side surface of the shell defines a cylindrical structure; the side surface of the shell is provided with a feeder feed port connected to the conveying tank discharge port, and a feeder air inlet connected to the other end of the air supply duct; the rotating shaft coincides with the central axis of the shell and is rotatably connected to the shell; the blades extend from one end of the shell to the other end of the shell along the direction of the rotating shaft, and are evenly distributed along the circumference of the rotating shaft; the plane where each blade is located is in the same plane as the central axis of the rotating shaft; the driving member drives the rotating shaft to rotate.

[0007] In some of the embodiments, an air inlet direction of the feeder air inlet intersects with a radial cross section of the cylindrical structure defined by an inner side surface of the shell.

[0008] In some of the embodiments, a feeder discharge port is also provided at the bottom of the side of the shell.

[0009] In some embodiments, a level meter is provided on the conveying tank, and the level meter is electrically connected to the driving component via a PLC.

[0010] In some of the embodiments, it also includes a screw conveyor connected to the feed port of the conveying tank, and a feeding bin connected to the screw conveyor.

[0011] In some of the embodiments, it further includes a collecting silo connected to the feeder discharge port, and a dust collector is provided on the top of the collecting silo.

[0012] In some of the embodiments, both the collecting silo and the conveying tank are provided with arch breakers.

[0013] In some of the embodiments, the blower is a Roots blower, and silencers are provided at the air inlet and the air outlet of the Roots blower.

[0014] In some of the embodiments, the collecting bin is connected to the thermal cracking reactor via a feeding screw.

[0015] In some of the embodiments, the feed bin is connected to a bucket elevator.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model provides a pyrolysis rubber block conveying and feeding device. By arranging a conveying tank, an air supply component, and a feeder, and further defining the structure of the feeder, a blower is used to introduce compressed air into a conveying pipeline, and a pressure difference between a starting point and an end point of the pipeline is used to make the air flow in the pipeline and drive the movement of the material. At the same time, the feeder is used to supply air and lock the airflow, thereby ensuring the stability of the air pressure in the conveying pipeline and the uniform and continuous discharge of the material, and improving the conveying efficiency of the rubber blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 A schematic diagram of the structure of a pyrolysis rubber block conveying and feeding device provided in an embodiment of the utility model;

[0020] Figure 2 A partial cross-sectional schematic diagram of a feeder from another angle of the pyrolysis rubber block conveying and feeding device provided by an embodiment of the utility model;

[0021] Figure 3 A schematic diagram of the structure of a feeder provided by an embodiment of the utility model;

[0022] Figure 4 Another structural schematic diagram of the feeder provided by the embodiment of the utility model;

[0023] In the above figures: 1. conveying tank; 2. air supply assembly; 3. feeder; 31. rotating shaft; 32. blades; 33. driving member; 4. screw conveyor; 5. feeding bin; 6. collecting bin; 7. dust collector; 8. feeding screw; 9. thermal cracking reactor; 10. bucket elevator. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described and illustrated in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments provided by the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] The utility model provides a pyrolysis rubber block conveying and feeding device. Figure 1 This is a schematic diagram of the structure of the pyrolysis rubber block feeding device according to an embodiment of the utility model. Figure 1 ,2 As shown, the device at least includes a conveying tank 1, an air supply component 2, and a feeder 3; the inner side of the conveying tank 1 is surrounded by a rubber block accommodating space, and a conveying tank 1 discharge port is opened at the bottom; the air supply component includes a fan, and an air supply duct connected to the fan at one end; Figure 3 , 4 As shown, the feeder 3 further includes a shell, a rotating shaft 31, a plurality of blades 32, and a driving member 33; the inner side surface of the shell defines a cylindrical structure; the side surface of the shell is provided with a feed port of the feeder 3 connected to the discharge port of the conveying tank 1, and an air inlet of the feeder 3 connected to the other end of the air supply duct; the rotating shaft 31 coincides with the central axis of the shell and is rotatably connected to the shell; the blades 32 extend from one end of the shell along the direction of the rotating shaft 31 to the other end of the shell, and are evenly distributed along the circumference of the rotating shaft 31; the plane where each blade 32 is located is in the same plane as the central axis of the rotating shaft 31; the driving member 33 drives the rotating shaft 31 to rotate. The pyrolysis rubber block conveying and feeding equipment is provided with a conveying tank 1, an air supply component 2, and a feeder 3, and further defines the structure of the feeder 3, uses a blower to introduce compressed air into the conveying pipeline, and uses the pressure difference between the starting point and the end point of the pipeline to make the air flow in the pipeline and drive the movement of the material, and at the same time uses the feeder 3 to play the role of air supply and airflow locking, thereby ensuring the stability of the air pressure in the conveying pipeline and the uniform and continuous discharge of the material, thereby improving the conveying efficiency of the rubber block. In order to further improve the rapid conveying of the rubber block from the conveying tank 1 to the feeder 3, the bottom of the rubber block accommodating space formed by the inner side of the conveying tank 1 is conical.

[0026] In order to further enhance the air supply and air locking function of the feeder 3, the air inlet direction of the air inlet of the feeder 3 intersects with the radial cross section of the cylindrical structure defined by the inner side surface of the shell. At the same time, in order to ensure that the airflow supplied by the feeder 3 can play a better role in promoting the conveying of materials and ensure the smooth output of materials, a discharge port of the feeder 3 is also provided at the bottom of the side of the shell. It should be noted that the discharge port of the conveying tank 1 and the feed port of the feeder 3, the air inlet of the conveying tank 1 and the air supply component 2, and the discharge port of the feeder 3 and the conveying pipeline are all connected by flanges.

[0027] The upper part of the rubber block conveying tank 1 is provided with a head, and the lower part is designed with a cone for the convenience of material discharge. The feed port of the rubber block conveying tank 1 is vertically arranged in the middle of the upper head, and is connected to the discharge port of the rubber block raw material feeding bin 5 and the screw conveyor 4. An upper material level meter is arranged on the upper right part of the rubber block conveying tank 1, which is interlocked with the rubber block raw material feeding bin 5 and the screw conveyor 4 to control the upper material level in the rubber block conveying tank 1. A lower material level meter is arranged on the lower conical tank body of the rubber block conveying tank 1, which is interlocked with the forced rotary feeder 3 to control the start and stop of the forced rotary feeder 3. An arch breaker is arranged on the lower conical tank body on the left side of the rubber block conveying tank 1, which is used to vibrate the tank wall to prevent the incoming materials from bridging and solve the problem of poor material flow.

[0028] The above-mentioned feeder 3 is a key equipment in the pneumatic conveying system. For the positive pressure conveying system of rubber blocks, the forced rotating feeder 3 can feed the conveying pipeline evenly and continuously. A feeding rotor (i.e., a structure composed of a rotating shaft 31 and a plurality of blades 32) is arranged inside the feeder 3, which can play the role of supplying air and locking the airflow, thereby ensuring the stability of the air pressure in the system and the normal discharge of materials. The feed port of the forced rotating feeder 3 is arranged on the left side of the machine body and is connected to the air outlet of the air supply pipeline. The discharge port of the forced rotating feeder 3 is arranged on the right side of the machine body and is connected to the feed port of the rubber block conveying pipeline to supply the rubber block collection bin 6.

[0029] In order to effectively control and reduce the spread of aerodynamic noise and ensure the smooth passage of airflow, the blower is a Roots blower, and silencers are provided at the air inlet and outlet of the Roots blower. The positive pressure conveying of the utility model is to use the Roots blower at the front end to introduce compressed air into the conveying pipeline, and use the pressure difference between the starting point and the end point of the pipeline to make the air flow in the pipeline and drive the movement of the material. The air inlet of the Roots blower is provided with a silencer, and the air outlet of the Roots blower is on the right side of the blower. The air supply pipeline connected to the air outlet is also provided with a silencer. The main function is to effectively control and reduce the spread of aerodynamic noise and ensure the smooth passage of airflow. The air supply pipeline is provided with a pressure remote sensor for controlling and adjusting the air volume and air supply pressure of the Roots blower. A reserved feed port is also provided on the air supply pipeline to facilitate the replenishment of materials from here.

[0030] In order to facilitate the control of material transportation, a material level meter is provided on the conveying tank 1, and the material level meter is electrically connected to the driving member 33 through a PLC.

[0031] In some of the embodiments, a screw conveyor 4 connected to the feed port of the conveying tank 1 and a feeding bin 5 connected to the screw conveyor 4 are also included, and the feeding bin 5 is connected to the bucket elevator 10 .

[0032] After being crushed in the pre-treatment workshop, the waste tires are directly transported to the feeding hopper of the bucket elevator 10. The feeding hopper is vertically arranged at the upper left side of the bucket elevator 10 and connected to the discharge port of the upstream process conveying device. The driving device of the bucket elevator 10 is vertically arranged at the upper right side, and the drop pipe of the bucket elevator 10 is arranged at the lower right end and connected to the feeding port of the rubber block raw material bin. The rubber blocks transported from the bucket elevator 10 first enter the rubber block feeding bin 5 for buffering. The feeding port of the rubber block raw material feeding bin 5 is vertically arranged at the upper left side of the bin body. In order to facilitate the smooth discharge of materials entering the bin, the rubber block feeding bin 5 adopts a wedge-shaped structure with a large top and a small bottom. The upper material level meter of the rubber block raw material feeding bin 5 is arranged at the upper right side of the bin body, interlocked with the bucket elevator 10, and controls the upper material level in the rubber block raw material feeding bin 5. The material level meter at the lower part of the rubber block raw material feeding bin 5 is arranged at the lower part of the cone body on the left side of the bin body, and is interlocked with the screw conveyor 4 of the rubber block raw material feeding bin 5 to control the material level in the rubber block raw material feeding bin 5. The material discharge port of the rubber block raw material feeding bin 5 is arranged at the lower part of the bin body, and is connected with the feeding port of the screw conveyor 4 of the rubber block raw material feeding bin 5. The main function of the screw conveyor 4 of the rubber block raw material feeding bin 5 is to convey materials to the rubber block conveying tank 1 at the lower part, and its feeding port is vertically arranged at the upper part of the left side of the spiral cylinder body, and is connected with the upper and lower flanges. A spiral shaft is arranged in the cylinder body of the screw conveyor 4 of the rubber block raw material feeding bin 5, and a spiral blade 32 is arranged on the spiral shaft. Under the action of the spiral blade 32, the material is pushed to move to the right side. The material discharge port of the screw conveyor 4 of the rubber block raw material feeding bin 5 is arranged at the lower part of the right cylinder body, and is connected with the feeding port of the rubber block sending tank. The drive of the screw conveyor 4 of the rubber block raw material feeding bin 5 is arranged at the end of the cylinder body, and the screw conveyor 4 is driven to convey the material to the rubber block sending tank for storage in a clockwise direction.

[0033] In some embodiments, a collecting bin 6 connected to the discharge port of the feeder 3 is further included, and a dust collector 7 is provided on the top of the collecting bin 6. Arch breakers are provided on the collecting bin 6 and the conveying tank 1. The collecting bin 6 is connected to the thermal cracking reactor 9 through a feeding screw 8.

[0034] The feeder 3 directly conveys the material to the rubber block collection silo 6 for storage through the rubber block conveying pipeline. A pressure gauge is vertically arranged in the middle of the rubber block collection silo 6, so that the pressure in the silo can be observed at any time. A dust collector 7 is vertically arranged on the right side of the top of the rubber block collection silo 6, and the gas mixed with rubber powder is filtered and purified through its matching fan, and the dust in the air is recovered and collected to reduce the impact of the discharged gas on the environment. An upper level meter is arranged on the upper right side of the rubber block collection silo 6, which is interlocked with the forced rotary feeder 3 to control the upper material level in the silo. A lower level meter is arranged on the lower right side of the rubber block collection silo 6, which is interlocked with the discharge valve arranged at the bottom of the silo to control the lower material level in the silo. Arch breakers are symmetrically arranged on the left and right sides of the lower part of the conical body of the rubber block collection silo 6 to vibrate the material in the silo to prevent the material from bridging in the silo. The discharge port of the discharge valve is connected to the feed port of the thermal cracking kettle feed screw 8. The feed screw 8 is provided with a spiral blade 32. The discharge port of the spiral machine directly transports the rubber block to the thermal cracking reactor 9 for thermal cracking.

[0035] The working process of the above-mentioned pyrolysis rubber block conveying and feeding equipment is as follows:

[0036] The rubber and plastic blocks enter the feeder 3 through the conveying tank 1. As the rotating shaft 31 drives the blades 32 to rotate, the materials are conveyed to the discharge port of the feeder 3. At the same time, under the wind force of the air supply component 2, the fan is used to introduce compressed air into the conveying pipeline. The pressure difference between the starting point and the end point of the pipeline is used to make the air flow in the pipeline and drive the movement of the materials. At the same time, the feeder 3 is used to supply air and lock the airflow, thereby ensuring the stability of the air pressure in the conveying pipeline and the uniform and continuous discharge of the materials.

[0037] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A pyrolysis rubber block conveying and feeding device, characterized in that: include A conveying tank, wherein the inner side of the tank body of the conveying tank is surrounded by a rubber block accommodating space, and a conveying tank discharge port is opened at the bottom; An air supply component, the air supply component comprising a fan and an air supply duct connected to the fan at one end; A feeder, the feeder further comprising: A shell, the inner side of which defines a cylindrical structure; the side of the shell is provided with a feeder inlet connected to the discharge port of the conveying tank, and an air inlet of the feeder connected to the other end of the air supply duct; A rotating shaft, the rotating shaft coincides with the central axis of the housing and is rotatably connected to the housing; A plurality of blades, wherein the blades extend from one end of the housing along the direction of the rotating shaft to the other end of the housing and are evenly distributed along the circumference of the rotating shaft; the plane where each blade is located is in the same plane as the central axis of the rotating shaft; A driving member drives the rotating shaft to rotate.

2. The pyrolysis rubber block conveying and feeding equipment according to claim 1, characterized in that: The air inlet direction of the feeder air inlet intersects with the radial cross section of the cylindrical structure defined by the inner side surface of the shell.

3. The pyrolysis rubber block conveying and feeding equipment according to claim 2, characterized in that: A feeder discharge port is also provided at the bottom of the side of the shell.

4. The pyrolysis rubber block conveying and feeding equipment according to claim 1, characterized in that: The conveying tank is provided with a material level meter, and the material level meter is electrically connected to the driving component through a PLC.

5. The pyrolysis rubber block conveying and feeding equipment according to claim 1, characterized in that: It also includes a screw conveyor connected to the feed port of the conveying tank, and a feeding bin connected to the screw conveyor.

6. The pyrolysis rubber block conveying and feeding equipment according to claim 3, characterized in that: It also includes a collecting bin connected to the feeder discharge port, and a dust collector is provided on the top of the collecting bin.

7. The pyrolysis rubber block conveying and feeding device according to claim 6, characterized in that: The collecting silo and the conveying tank are both provided with arch breakers.

8. The pyrolysis rubber block conveying and feeding equipment according to claim 1, characterized in that: The blower is a Roots blower, and silencers are provided at the air inlet and the air outlet of the Roots blower.

9. The pyrolysis rubber block conveying and feeding device according to claim 6, characterized in that: The collecting bin is connected to the thermal cracking reactor via a feeding screw.

10. The pyrolysis rubber block conveying and feeding device according to claim 5, characterized in that: The feeding bin is connected to a bucket elevator.

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