Discharging spiral equipment

Abstract

The utility model provides discharging spiral equipment, which belongs to the technical field of waste rubber and plastic thermal cracking slag discharging and conveying, and comprises a gas blocking screw conveyor, and the gas blocking screw conveyor comprises a cylinder body, a gas blocking square box, a material blocking cover plate, a spiral shaft and a first spiral blade; the barrel body is obliquely arranged upwards in the discharging direction; the air blocking square box is sleeved outside the discharge end of the cylinder body; the material blocking cover plate is hinged to the discharging end of the barrel and located in the air blocking square box, and a balancing weight is arranged on the material blocking cover plate. The material blocking cover plate is positioned at a first position for closing the discharge end of the barrel body or a second position for opening the discharge end of the barrel body; the spiral shaft penetrates through the cylinder body, the material blocking cover plate and the air blocking square box; the first spiral blade is sleeved outside the spiral shaft close to the feeding end of the cylinder body; and the spiral shaft close to the discharge end of the barrel and the barrel define a gas blocking section. The utility model solves the technical problem of potential safety hazards caused by the sealing performance of the pyrolysis carbon black output equipment, and has the characteristics of good sealing performance, high safety and capability of realizing continuous and uniform material conveying.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste rubber and plastic thermal cracking slag conveying, in particular to a discharging spiral device. Background Art

[0002] Current methods for processing scrap tires include prototype modification, production of recycled rubber and rubber powder, incineration, and pyrolysis. Pyrolysis technology holds great potential for treating scrap tires. Scrap tire pyrolysis involves thermally decomposing scrap tires in an oxygen-deficient or inert atmosphere, producing pyrolysis gas, pyrolysis oil, and charcoal residue. In this process, waste rubber and plastic, after being crushed, enter a pyrolysis reactor through a feed port. High-temperature flue gas is introduced into the reactor's external heating chamber, heating the contents to a specific temperature. Heating in the absence of or anoxic conditions breaks down the rubber's polymers, producing monomers, dimers, and fragments. This also produces storable fuel oil, pyrolysis gas, steel wire, and pyrolysis-regenerated carbon black. The pyrolysis carbon black produced in this process can be further processed and reused, offering excellent recycling potential. However, existing pyrolysis carbon black output equipment often poses safety risks due to sealing issues. Utility Model Content

[0003] The 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.

[0004] The utility model provides a discharging screw device, which solves the technical problem of potential safety hazards caused by sealing of cracked carbon black output equipment. It has the characteristics of good sealing, high safety, and can realize continuous and uniform material transportation.

[0005] The utility model discloses a discharging spiral device, including an air-blocking screw machine, which further includes a cylinder, an air-blocking square box, a material-blocking cover plate, a screw shaft, and a first spiral blade; the cylinder is arranged to be inclined upward along the discharging direction; the air-blocking square box is sleeved on the outside of the discharging end of the cylinder; the material-blocking cover plate is hinged to the discharging end of the cylinder and is located in the air-blocking square box, and a counterweight block is provided on the material-blocking cover plate; the material-blocking cover plate is located at a first position closing the discharging end of the cylinder, or a second position opening the discharging end of the cylinder; the spiral shaft passes through the cylinder, the material-blocking cover plate and the air-blocking square box; the first spiral blade is sleeved on the outside of the spiral shaft near the feeding end of the cylinder; the spiral shaft near the discharging end of the cylinder and the cylinder define an air-blocking section.

[0006] In some embodiments, the top of the material blocking cover is hinged to the discharge end of the cylinder through a connecting hinge, and the bottom of the material blocking cover is a free end; an opening with a bottom opening is provided on the material blocking cover, and when the material blocking cover is in the first position closing the discharge end of the cylinder, the spiral shaft passes through the opening and penetrates the material blocking cover.

[0007] In some embodiments, the discharge end of the cylinder is a beveled structure, and the material blocking cover is correspondingly inclined.

[0008] In some embodiments, when the material blocking cover is located at the first position closing the discharge end of the cylinder, the angle between the material blocking cover and the bottom of the cylinder is an acute angle.

[0009] In some embodiments, the air-blocking screw machine further includes a second spiral blade sleeved outside the spiral shaft located in the air-blocking box and outside the barrel, and the second spiral blade is arranged in the opposite direction to the first spiral blade.

[0010] In some embodiments, the air-blocking screw machine further includes a driving member for driving the screw shaft to rotate, and the driving member is located at the feed end of the barrel.

[0011] In some embodiments, the discharge screw device further includes a carbon slag buffer silo connected to the feed end of the cylinder, and the feed port of the carbon slag buffer silo is connected to the sealing bin.

[0012] In some embodiments, the sealed chamber is connected to the discharge port of the thermal cracking reactor, and the steam outlet of the sealed chamber is connected to a shell and tube condenser.

[0013] In some embodiments, the discharge screw device further includes a slag discharge screw machine connected to the discharge port of the air-blocking square box.

[0014] In some embodiments, the outer shell of the slag discharge screw conveyor is provided with a water cooling jacket.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model provides a discharging spiral device, in which the cylinder is arranged to be inclined upward along the discharging direction, which is beneficial to increasing the internal resistance of the cylinder during transportation, so that the density of the transported coarse carbon black is large, and an air-blocking square box is arranged outside the discharging end of the cylinder, and the material-blocking cover plate is used to further improve the sealing of the discharging. In addition, the mutual cooperation of the first spiral blade, the cylinder and the spiral shaft realizes forward propulsion, and the material is compacted by the setting of the air-blocking section, thereby ensuring the sealing and safety of the discharging process and realizing continuous and uniform material transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 of the present invention. In the drawings:

[0018] Figure 1 A schematic structural diagram of an air-blocking screw machine provided in an embodiment of the present invention;

[0019] Figure 2 A schematic structural diagram of a material blocking cover provided by an embodiment of the present utility model;

[0020] Figure 3 A schematic structural diagram of the discharging screw device provided in an embodiment of the present utility model;

[0021] In the above figures: 101, cylinder; 102, air-blocking box; 103, material-blocking cover; 104, spiral shaft; 105, first spiral blade; 106, air-blocking section; 107, second spiral blade; 108, driving part; 2, carbon slag buffer silo; 3, sealing bin; 4, shell and tube condenser; 5, slag discharge spiral machine. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0023] The embodiment of the utility model provides a discharging spiral device, Figure 1 This is a structural diagram of the air-blocking screw machine of the discharge screw device according to the embodiment of the utility model. Figure 1As shown, the discharge screw device comprises at least an air-blocking screw machine, which further comprises a cylinder 101, an air-blocking box 102, a material-blocking cover plate 103, a spiral shaft 104, and a first spiral blade 105; the cylinder 101 is tilted upward along the discharge direction; the air-blocking box 102 is sleeved on the discharge end of the cylinder 101; the material-blocking cover plate 103 is hinged to the discharge end of the cylinder 101 and is located in the air-blocking box 102, and the material-blocking cover plate 103 is hinged to the discharge end of the cylinder 101 and is located in the air-blocking box 102. A counterweight is provided on it; the material blocking cover 103 is located in the first position of closing the discharge end of the cylinder 101, or in the second position of opening the discharge end of the cylinder 101; the spiral shaft 104 passes through the cylinder 101, the material blocking cover 103 and the gas blocking box 102; the first spiral blade 105 is sleeved on the outside of the spiral shaft 104 near the feed end of the cylinder 101; the spiral shaft 104 near the discharge end of the cylinder 101 and the cylinder 101 define an gas blocking section 106.

[0024] like Figure 2 As shown, the top of the material blocking cover plate 103 is hinged to the discharge end of the cylinder 101 via a connecting hinge, and the bottom of the material blocking cover plate 103 is a free end. The material blocking cover plate 103 is provided with an opening with a bottom opening. When the material blocking cover plate 103 is in the first position closing the discharge end of the cylinder 101, the spiral shaft 104 passes through the opening and penetrates the material blocking cover plate 103. Furthermore, the discharge end of the cylinder 101 is a beveled structure, and the material blocking cover plate 103 is tilted accordingly. When the material blocking cover plate 103 is in the first position closing the discharge end of the cylinder 101, the angle between the material blocking cover plate 103 and the bottom of the cylinder 101 is an acute angle.

[0025] The barrel 101 of the above-mentioned discharging spiral equipment is arranged to be inclined upward along the discharging direction, which is beneficial to increase the internal resistance of the barrel 101 during transportation, so that the density of the transported coarse carbon black is large. An air-blocking square box 102 is arranged outside the discharging end of the barrel 101, and the material-blocking cover plate 103 is used to further improve the sealing of the discharging. In addition, the first spiral blade 105 cooperates with the barrel 101 and the spiral shaft 104 to achieve forward propulsion. The setting of the air-blocking section 106 realizes the compaction of the material, ensures the sealing and safety of the discharging process, and realizes continuous and uniform material transportation.

[0026] In some of the embodiments, the self-sealing air-blocking screw machine is transported at an angle of 16° to the right. Since the bulk density of the crude carbon black is small, the main purpose of this transporting method is to increase the internal resistance of the cylinder 101 during transportation, so that the density of the transported crude carbon black is large, and to provide a prerequisite for the subsequent built-in sealing device. At the same time, a 600mm air-blocking section 106 is provided in the cylinder 101 of the above-mentioned self-sealing air-blocking screw machine. No spiral blades are provided on the spiral shaft 104 in the air-blocking section 106. The incoming material is compacted entirely by the thrust of the first spiral blade 105 provided on the left side, and then moved toward the right-side inclined material-blocking cover plate 103. An air-blocking square box 102 is provided on the outside of the right side of the cylinder 101 of the self-sealing air-blocking screw machine, and an observation port is vertically provided on the top of the air-blocking square box 102 for installing and adjusting the counterweight assembly of the inclined material-blocking cover plate 103. The left side of the air-blocking square box 102 is welded to the left side of the self-sealing air-blocking spiral machine barrel 101, and the right side is fixed to the tail flange of the right barrel 101. The upper edge of the self-sealing air-blocking spiral machine barrel 101 extends 300mm into the left side of the air-blocking square box 102. The upper edge of the barrel 101 is provided with a hinge fixing seat, which cooperates with the upper equipment connection hinge of the built-in material-blocking cover plate 103 to open and close. The bevel inclination angle of the self-sealing air-blocking spiral machine barrel 101 is 60°, and the inclined material-blocking cover plate 103 cooperates with the same angle. The built-in cover plate of the self-sealing air-blocking spiral machine is connected with a hinge, and a counterweight iron is provided on the built-in cover plate of the self-sealing air-blocking spiral machine. The built-in cover plate counterweight iron is fixed to the built-in cover plate with fixing bolts.

[0027] In some embodiments, the air-blocking screw machine further includes a second spiral blade 107 that is sleeved outside the spiral shaft 104 located in the air-blocking box 102 and outside the cylinder 101. The second spiral blade 107 is arranged in the opposite direction to the first spiral blade 105. Specifically, the second spiral blade 107 is a reverse thrust spiral blade, which can prevent the incoming material from entering the rear bearing box.

[0028] Furthermore, the air-blocking screw machine also includes a driving member 108 for driving the screw shaft 104 to rotate, and the driving member 108 is located at the feed end of the barrel 101. Specifically, the self-sealing air-blocking screw machine driving member 108 is arranged at the left end of the screw machine barrel 101, and is driven by an axial connection. The self-sealing air-blocking screw machine feed port is vertically arranged on the upper left side of the screw machine barrel 101, and is connected to the blanking port of the carbon slag buffer bin 2. The self-sealing air-blocking screw machine is provided with a front bearing box at the front left side, and a rear bearing box at the right end. The screw machine barrel 101 is provided with a screw shaft 104 and a spiral blade. The left end shaft head of the screw shaft 104 cooperates with the front bearing box, and the right end shaft head of the screw shaft 104 cooperates with the rear bearing box to push the incoming coarse carbon black to move toward the right side of the screw machine blanking port.

[0029] like Figure 3As shown, the discharge screw device also includes a charcoal slag buffer silo 2 connected to the feed end of the cylinder 101. The feed port of the charcoal slag buffer silo 2 is connected to a sealed silo 3. The sealed silo 3 is connected to the discharge port of the pyrolysis reactor, and the steam outlet of the sealed silo 3 is connected to a tube-and-tube condenser 4. After the waste tires are heated at high temperatures in the pyrolysis reactor, the charcoal slag and high-temperature oil vapor after thermal cracking enter the sealed silo 3 for separation. The left end face of the sealed silo 3 is equipped with a dynamic and static coordination device for the pyrolysis reactor. While the pyrolysis reactor rotates clockwise, the sealed silo 3 remains stationary. The dynamic and static coordination device is filled with high-temperature resistant sealing packing to effectively prevent leakage of high-temperature oil vapor. A remote temperature sensor is vertically installed on the left side of the top of the sealed silo 3. It is interlocked with the external negative pressure pumping system to control the pressure of the pyrolysis system. An explosion vent is vertically installed on the upper right side of the sealed silo 3 to automatically release pressure in the event of overpressure in the pyrolysis system, ensuring the safety of the pyrolysis system. A high-temperature oil vapor outlet is provided at the upper portion of the right end face of the sealed bin 3. The high-temperature oil vapor separated after thermal cracking is transported through a delivery pipeline to the horizontal tube condenser 4 for condensation. A corrugated compensator is provided on the delivery pipeline to absorb the thermal expansion of the high-temperature oil vapor and compensate for the axial, lateral, and angular displacement of the pipeline. The high-temperature oil vapor is transported through a pipeline and enters the oil vapor inlet of the tube condenser 4. The oil inlet is axially arranged at the left end cap of the horizontal tube condenser 4. The tube condenser 4 is internally provided with condensing tubes. The high-temperature oil vapor flows through the tube side, and the cooling water flows through the shell side. The cooling oil outlet of the tube condenser 4 is radially arranged at the lower portion of the right end cap, and the cooling oil is transported and stored. The slag discharge port of the sealed bin 3 is provided at the lower portion of the bin body, and the discharged carbon slag enters the lower carbon slag buffer silo 2 for collection and storage. An upper level meter is provided on the upper right side of the carbon slag buffer silo 2, and a lower level meter is provided on the lower left side of the carbon slag buffer silo 2. The upper level meter and the lower level meter are interlocked with the self-sealing air-blocking screw machine to control the start and stop of the self-sealing air-blocking screw machine.

[0030] In some embodiments, the discharging screw device also includes a slag discharging screw machine 5 connected to the discharge port of the air-blocking square box 102. The outer shell of the slag discharging screw machine 5 is provided with a water-cooling jacket. Specifically, a drop port is provided on the right side of the lower part of the air-blocking square box 102, and the discharged material enters the feed port of the sealed unloading valve, and the material discharged from the discharge port of the sealed unloading valve enters the feed port of the water-cooled slag discharging screw machine 5. The feed port of the water-cooled slag discharging screw machine 5 is arranged on the upper left side of the spiral cylinder 101, the jacket return water port is vertically arranged on the upper right side of the cooling water jacket, the driving device is arranged on the right side of the spiral cylinder 101, the jacket water inlet is arranged on the lower left side of the cooling water jacket, the spiral blades are arranged in the spiral cylinder 101, the discharge port is arranged on the lower right side of the spiral cylinder 101, the lower part of the discharge port is connected to the discharge valve, and the discharged material is sent to the next step for deep processing.

[0031] The working process of the above-mentioned discharging spiral equipment is:

[0032] The material entering the air-blocking screw machine barrel 101 is pushed forward by the first spiral blade 105 and compacted under the action of gravity. After being pushed to the air-blocking section 106, it is further compacted and the material-blocking cover plate 103 is pushed open, so that the discharge end of the barrel 101 is in an open state, and the material is discharged outward through the air-blocking box 102.

[0033] The advantages of the above-mentioned discharge spiral equipment with an automatic air-blocking sealing device are mainly reflected in the following aspects: the advantages of the air-blocking screw conveyor mainly include simple and compact structure, small footprint, continuous and uniform material transportation, and can rely on the built-in air-blocking mechanism to automatically seal, which can effectively prevent the escape of high-temperature oil vapor and the entry of external air into the pyrolysis system; simple and compact structure: the structure of the air-blocking screw conveyor is very simple, mainly consisting of two parts: the spiral body and the air-blocking mechanism built into the spiral cylinder 101. This simple structure makes the built-in sealing system very mature and reliable; small footprint, since the rotating motion of the spiral blades is used to push the material forward, the air-blocking screw conveyor does not require a large amount of space to install and operate, so it is very suitable for working environments with limited space; stable operation: the air-blocking screw conveyor does not produce obvious vibration and noise when working, and has stable operation, which can ensure the transmission quality and production efficiency of the product. In summary, the above-mentioned discharge spiral equipment can realize continuous and uniform material transportation, and the air-blocking mechanism built into the cylinder 101 can be quickly and automatically closed once the transportation stops, which is particularly important for production line transportation that requires stable material flow and automatic sealing and air blocking.

[0034] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0035] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A discharging screw device, characterized in that: The invention comprises a choke screw machine, wherein the choke screw machine further comprises: A cylinder body, the cylinder body being arranged obliquely upward along a discharging direction; A gas-blocking square box, which is sleeved outside the discharge end of the cylinder; A material blocking cover plate, the material blocking cover plate is hinged to the discharge end of the cylinder and is located in the gas blocking box, and a counterweight block is provided on the material blocking cover plate; the material blocking cover plate is located in a first position closing the discharge end of the cylinder, or in a second position opening the discharge end of the cylinder; A spiral shaft, the spiral shaft passing through the cylinder, the material blocking cover plate and the gas blocking box; a first spiral blade, the first spiral blade being sleeved outside the spiral shaft near the feed end of the barrel; The spiral shaft near the discharge end of the cylinder defines an air blocking section with the cylinder.

2. The discharging screw device according to claim 1, characterized in that: The top of the material blocking cover is hinged to the discharge end of the cylinder through a connecting hinge, and the bottom of the material blocking cover is a free end; an opening with a bottom opening is provided on the material blocking cover, and when the material blocking cover is in the first position closing the discharge end of the cylinder, the spiral shaft passes through the opening to penetrate the material blocking cover.

3. The discharging screw device according to claim 2, characterized in that: The discharge end of the cylinder is a beveled structure, and the material blocking cover is correspondingly inclined.

4. The discharging screw device according to claim 3, characterized in that: When the material blocking cover is located at the first position closing the discharge end of the cylinder, the angle between the material blocking cover and the bottom of the cylinder is an acute angle.

5. The discharging screw device according to claim 1, characterized in that: The air-blocking screw machine further includes a second spiral blade which is sleeved outside the spiral shaft in the air-blocking box and outside the cylinder, and the second spiral blade is arranged in the opposite direction to the first spiral blade.

6. The discharging screw device according to claim 1, characterized in that: The air-blocking screw machine further includes a driving member for driving the screw shaft to rotate, and the driving member is located at the feed end of the barrel.

7. The discharging screw device according to claim 1, characterized in that: The discharging screw device also includes a carbon slag buffer bin connected to the feed end of the cylinder, and the feed port of the carbon slag buffer bin is connected to the sealing bin.

8. The discharging screw device according to claim 7, characterized in that: The sealed chamber is connected to the discharge port of the thermal cracking reactor, and the steam outlet of the sealed chamber is connected to a tube-in-tube condenser.

9. The discharging screw device according to claim 1, characterized in that: The discharge screw device also includes a slag discharge screw machine connected to the discharge port of the air-blocking square box.

10. The discharging screw device according to claim 9, characterized in that: The outer shell of the slag discharge spiral machine is provided with a water cooling jacket.

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