Material mixing system with drying circulation system

Abstract

The utility model discloses a material mixing system with a drying circulating system. The material mixing system comprises a vertical material mixing barrel, the drying circulating system and a bracket, the vertical mixing barrel erected on the support comprises a storage hopper, a feeding hole, a conveying screw, a conveying cylinder, a driving device, a collecting box, a material changing opening and a discharging opening, and the drying circulating system fixed to the outer side of the vertical mixing barrel comprises an air blower, an air blowing pipe, a heating barrel, a first hot air pipe, a second hot air pipe, a third hot air pipe and a fourth hot air pipe. Repeated circulating hot air is introduced into the vertical mixing cylinder through the drying circulating system and the air blower, and the conveying screw continuously rotates in the storage hopper and the conveying cylinder, so that heat on the surfaces of materials is fully utilized, the drying speed of the materials is increased, and the hot air use efficiency and the working efficiency of the drying mechanism are improved; the purposes of fully exerting the efficiency of the drying mechanism and saving energy are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mixers, in particular to a mixing system with a drying circulation system. Background Art

[0002] Engineering plastics have excellent comprehensive properties, high rigidity, low creep, high mechanical strength, good heat resistance, good electrical insulation, and can be used for a long time in harsh chemical and physical environments. They can replace metals as engineering structural materials. As people's environmental protection requirements for engineering plastic products gradually increase, people's requirements for the quality of engineering plastic products are also constantly improving. Since most engineering plastics have strong hygroscopicity, quality defects such as silver streaks, streaks and bubbles will appear on the surface of the molded plastic parts, resulting in quality problems for the plastic parts. Therefore, engineering plastics generally need to be mixed and dried during processing. In the prior art, there are generally two situations for mixing and drying:

[0003] 1. Mixing and drying needs to be done in two devices:

[0004] CN205853141U discloses a TV shell plastic raw material mixing device, including a mixer, a driving motor is provided at the bottom center of the mixer, the output end of the driving motor is connected to the mixing chassis, a plurality of mixing plates with arc structures are provided on the upper circumferential direction of the mixing chassis, a plurality of mixing blades are evenly provided on each mixing plate, a cover plate is provided at the upper end of the mixer, a feed port is provided at the left end of the upper part of the cover plate, a discharge port is provided at the lower end of the right side wall of the mixer, a conveyor belt is provided below the discharge port, the other end of the conveyor belt is connected to the extrusion mechanism, a drying mechanism is provided directly above the conveyor belt, and the conveyor belt and the extrusion mechanism are fixed by a fixed base. The operation of the two devices of the mixing mechanism and the drying treatment mechanism is relatively complicated, and the processing efficiency is low.

[0005] 2. Mixing and drying are done in the same equipment:

[0006] CN220030798U discloses a vertical mixer for the production of plastic particles, including a body, the upper surface of which is bolted with a motor; and also includes: a conveying chamber, which is fixedly mounted on the right inner wall of the upper surface of the body, and the internal bearing of the conveying chamber is connected with a shaft, and the left end of the shaft passes through the conveying chamber and is fixedly connected with a second bevel gear, and the second bevel gear is meshed and connected with the first bevel gear. The vertical mixer for the production of plastic particles can dry the plastic particles that have been degraded or dampened on the surface and condensed into blocks through the arrangement of the shaft and the heating box, so that it is not necessary to dry them manually or with a special machine, thereby reducing the production cost and improving the efficiency. The arrangement of the conveying chamber and the rotary knife prevents the raw materials from being added at one time and causing the stirring to be uneven, so that there is no need to extend the stirring time, saving time and improving the production efficiency.

[0007] CN214111022U discloses a plastic color mixer with drying function, including a machine body, a slide rail and a rotating rod, a rotating rod is installed inside the machine body, a stirring knife is arranged on one side of the rotating rod, one end of the stirring knife is fixedly connected to a connecting rod, an embedding hole is connected to the surface of the connecting rod, sliding buckles are connected to both sides of the connecting rod, a sliding buckle is connected inside the slide rail, a spring sheet is connected inside the connecting rod, one end of the spring sheet is connected to a top column, and a top sleeve is connected to the surface of the top column. For the plastic color mixer with drying function, an operator installs a guide column inside the guide sleeve to drive a drying plate to be installed inside the machine body, then the guide column and the guide sleeve form a chimeric structure to stabilize the drying plate inside the machine body, then the card block and the card slot form a card structure to fix the drying plate, so as to facilitate and quickly dry the product inside the device.

[0008] CN212288270U discloses a plastic granule mixing vertical dryer, comprising a chassis, a fixing frame installed on the top of the chassis, a driving motor fixedly installed on the top of the fixing frame, an output shaft of the driving motor passing through the top of the chassis and connected with a connecting shaft, and the connecting shaft passing through a first connecting bar. The utility model puts plastic granules into the granule entry pipe on the top of the chassis, and the plastic granules enter the spin-drying drum, the output shaft of the driving motor drives the connecting shaft to rotate, the connecting shaft drives the first connecting bar and the second connecting bar to rotate, the first connecting bar cooperates with the second connecting bar to drive the spin-drying drum to rotate, the spin-drying drum drives the plastic granules to mix and spin inside, and at the same time, the hot air blower conveys hot air into the connecting pipe, the hot air is ejected from the drying pipe through the connecting pipe, and then the inside of the chassis is heated, and the plastic granules in the spin-drying drum are dried, so as to solve the technical problem that the drying effect of the plastic granule dryer in the prior art is not ideal and cannot be fully dried.

[0009] CN215359346U discloses a special mixing dryer for engineering plastics, including a drying cylinder, a boss is fixedly connected to the upper end of the outer ring of the drying cylinder, a cylinder cover is fixedly connected to the upper end of the boss by bolts, a first motor is fixedly installed in the middle of the upper end of the cylinder cover, a first rotating shaft is fixedly connected to the lower end of the output end of the first motor, and a stirring rod is fixedly connected to the surface of the first rotating shaft at equal distances in the circumferential direction. The utility model stirs, mixes and disperses the materials by rotating the first rotating shaft and the stirring rod, conveys the materials upward by rotating the second rotating shaft and the spiral blade, and sends the materials back to the upper part of the drying cylinder from the feed port, and sends air to the first blast pipe through the blower, and after being heated by the electric heating wire, it is sent to the second blast pipe, and then reaches the blowing pipe. In the process of the material falling, hot air is sprayed to the material through the blowing hole, so as to perform a cyclic operation and dry the material.

[0010] CN210999548U discloses a plastic mixing bin with heating and drying function, including a frame and a mixing bin fixed on the frame, a discharge bin fixedly connected at the bottom of the mixing bin, a motor fixedly connected at the top of the mixing bin, the motor output shaft penetrates the top surface of the mixing bin, one end of the spiral rod is fixedly connected to the motor output shaft, the other end of the spiral rod is arranged at the bottom of the discharge bin, a drying device is fixedly connected to the side of the mixing bin, the drying device includes an air pipe, a hair dryer and a heating device, one end of the air pipe is connected to the mixing bin, the other end of the air pipe is connected to the hair dryer, the heating device is arranged in the middle of the air pipe, a feeding basin is fixedly connected to one side of the bottom of the discharge bin, a discharge pipe is fixedly connected to the bottom of the mixing bin, a hose is also connected to the top of the mixing bin, and the hose is connected to a centrifugal hair dryer. The utility model has a reasonable design, and by adding a drying device to the mixing bin, the product moisture is dried by hot air during the homogenization process, a processing flow is reduced, and the processing efficiency is greatly improved.

[0011] CN212006560U discloses a mixed drying device for modified plastic production, including a fixed box, a tank body and a bracket, the fixed box is arranged on the top of the tank body, and a feed port is arranged on one side, a fixed plate is arranged in the fixed box, a first drive motor is arranged on the fixed plate, a feeding shaft is arranged at the bottom of the first drive motor, stirring shafts are arranged on both sides of the feeding shaft, the stirring shaft and the feeding shaft are arranged vertically and extend downward into the tank body, a stirring blade is arranged on the stirring shaft and is located in the tank body, a first spiral blade is arranged on the feeding shaft and is located in the tank body, a discharge shaft and a discharge pipe are arranged at the bottom of the tank body, a second spiral blade is arranged on the discharge shaft, and a second drive motor is arranged on one side, a valve is arranged at the bottom of the discharge pipe, a support plate is arranged on the bracket, a hot air blower is arranged on the support plate, and a conduit is connected to the hot air blower and connected to the blowing port on the tank body. The utility model has a mixing and drying function in one step, improves production efficiency in one step, mixes and stirs up and down, and has the characteristics of high mixing efficiency, good effect, and clean discharge.

[0012] The mixing and drying processes are completed in the same equipment, which reduces one processing step and improves processing efficiency. However, there are common shortcomings such as low efficiency of hot air use in the drying mechanism and insufficient utilization of the drying mechanism's effectiveness. Summary of the invention

[0013] The purpose of the utility model is to solve the deficiencies of the prior art and to provide a mixing system with a drying circulation system, which not only improves the hot air utilization efficiency and working efficiency of the drying mechanism, but also can give full play to the effectiveness of the drying mechanism to achieve the purpose of energy saving.

[0014] In order to achieve the above object, the utility model provides the following technical solutions:

[0015] A mixing system with a drying circulation system comprises a vertical mixing cylinder, a drying circulation system and a bracket.

[0016] The upper part of the vertical mixing barrel is cylindrical, and the lower part is inverted conical. A storage hopper is arranged inside the bracket directly below the vertical mixing barrel, and the storage hopper is inverted triangular cone shape; a feeding hole is opened in the center of the bottom end of the vertical mixing barrel, and the feeding hole is connected to the storage hopper by a feeding cylinder; a feeding screw and a feeding cylinder are arranged in the center of the vertical mixing barrel, and the feeding screw is tightly fitted with the feeding cylinder at the feeding hole, and the feeding screw is wrapped by the feeding cylinder; the feeding screw extends upward from the storage hopper to the top of the vertical mixing barrel, and the feeding cylinder extends upward from the storage hopper to a distance of 2-5 meters from the top of the vertical mixing barrel. cm; a material receiving box is arranged on one side of the bottom end of the vertical mixing barrel, and a material changing port pointing to the storage hopper and a material discharge port pointing to the material receiving box are opened at the bottom end of the vertical mixing barrel, and the side walls of the material changing port and the side walls of the material discharge port are hingedly connected with a baffle for covering the material changing port and the material discharge port.

[0017] A drying circulation system for conveying hot air into the vertical mixing cylinder is fixed on the outside of the vertical mixing cylinder, and the drying circulation system consists of a blower, a blast pipe, a heating cylinder, a first hot air pipe, a second hot air pipe, a third hot air pipe, and a fourth hot air pipe. The blower is installed on a side adjacent to the storage hopper below the bracket, and the air outlet of the blower is fixedly connected with the blast pipe bolts, and the blast pipe is welded to the air inlet of the heating cylinder. An electric heating wire is installed in the heating cylinder, and the electric heating wire is spiral. The air outlet of the heating cylinder is welded to the first hot air pipe, the first hot air pipe is welded to the side of the bottom end of the cylindrical part of the vertical mixing cylinder, the vertical mixing cylinder has an exhaust hole on the top, the exhaust hole is welded to the second hot air pipe, the air outlet of the second hot air pipe is vertically welded to the third hot air pipe, the upper air outlet of the third hot air pipe is spirally connected to the bent pipe, the bent pipe is welded to the fourth hot air pipe, the fourth hot air pipe is bolted to the air inlet of the blower, so that the hot air forms a drying circulation system through this circulation pipeline.

[0018] By adopting the above technical scheme, during the drying process, the material exchange port is in an open state and the material discharge port is in a closed state. The feeding screw rotates and drives the material from the storage hopper through the feeding hole into the vertical mixing barrel. The material continues to rise with the rotation of the feeding screw. The drying circulation system transmits circulating hot air to the vertical mixing barrel and dries the material. The material reaches the top and then spreads out in an umbrella shape. After falling to the bottom of the vertical mixing barrel, it is discharged from the material exchange port to the storage hopper and then enters the next cycle. At the same time, the power device drives the rotating shaft and the feeding screw to rotate continuously. The feeding screw continuously stirs the materials in the storage hopper and the feeding cylinder. After drying, the baffle is used to close the material exchange port and open the material discharge port.

[0019] Furthermore, a driving device for driving the feed screw to rotate is arranged on the top of the vertical mixing barrel, and the driving device includes a driving motor, a driving wheel and a belt. A rotating shaft is arranged at the center of the feed screw at the center of the vertical mixing barrel, and a plurality of spirally ascending blades are welded on the rotating shaft; the driving wheel is coaxially arranged on the top of the rotating shaft, and the driving shaft of the driving motor and the driving wheel are connected through the belt transmission.

[0020] By adopting the above technical solution, after the driving motor is started, the driving wheel is driven to rotate through the belt, and the driving wheel drives the feeding screw to rotate inside the vertical mixing barrel, and the feeding screw drives the blades to make the material spiral up in the feeding barrel.

[0021] Furthermore, the outside of the heating cylinder of the drying circulation system is wrapped with a heat insulation layer.

[0022] By adopting the above technical solution, the heat insulation layer can not only prevent the staff from touching the outer wall of the heating tube and causing burns, but also reduce the heat loss.

[0023] Furthermore, a protective net is provided at the connection between the second hot air pipe and the exhaust hole of the mixing barrel.

[0024] By adopting the above technical solution, in order to prevent material particles from entering the second hot air duct during the mixing process, a protective net is set to isolate it, so as to prevent the second hot air duct and even the entire drying circulation system from being blocked.

[0025] Furthermore, a filter is fixed between the upper air outlet and the elbow of the third hot air duct of the drying cycle system.

[0026] By adopting the above technical solution, the filter can filter out materials and impurities in the hot air, so that the dry and pure hot air enters the fourth hot air pipe and then enters the blower.

[0027] Furthermore, a baffle is provided at the lower air outlet of the third hot air duct of the drying circulation system, and a handle is fixed around the baffle.

[0028] By adopting the above technical solution, the handle makes it convenient for the staff to quickly turn the baffle. When the baffle is closed, the hot air of the drying circulation system cannot pass through, and the material brought out of the vertical mixing barrel by the hot air can be deposited at the lower air outlet; when the baffle is opened, the deposited material can fall and re-enter the storage hopper for re-mixing.

[0029] Furthermore, handles are fixed around the baffles at the material changing port and the material discharging port of the vertical mixing barrel.

[0030] By adopting the above technical solution, the handle allows the staff to quickly rotate the two baffles, thereby quickly adjusting the blocking status of the material changing port and the material discharging port.

[0031] Furthermore, an observation port is provided on the outer wall of the vertical mixing barrel, and a blocking door is hingedly connected to the observation port.

[0032] By adopting the above technical solution, the observation port is provided to facilitate the staff to observe the amount of material put into the vertical mixing barrel, and to facilitate cleaning the inside of the vertical mixing barrel to keep the inside of the vertical mixing barrel clean; the baffle door can close the observation port, thereby not affecting the normal operation of the vertical mixing barrel.

[0033] Furthermore, a hook is fixed to the side of the baffle away from the vertical mixing barrel, a clamping rod is hingedly connected to the outer wall of the vertical mixing barrel, and a hanging ring that cooperates with the hook is hingedly connected to one end of the clamping rod close to the vertical mixing barrel.

[0034] By adopting the above technical solution, the hasp of the hanging ring and the hook is matched, and the hanging ring is pressed by the pressing rod, so as to realize the function of locking the baffle door to the side wall of the vertical mixing barrel.

[0035] In summary, the beneficial technical effects of the utility model are:

[0036] 1. Through the drying circulation system, the blower introduces the repeatedly circulating hot air into the vertical mixing barrel, drives the material to rise through the feeding screw and makes the material fall in the vertical mixing barrel in an umbrella-like manner, so that the material is dried evenly; the hot air utilization efficiency and work efficiency of the drying mechanism are improved;

[0037] 2. The feeding screw continuously rotates in the storage hopper and the feeding cylinder, so that the material with a certain amount of heat discharged from the material exchange port is continuously mixed with the material that has not been dried, thereby making full use of the heat on the surface of the material, accelerating the drying speed of the material, and improving the drying efficiency, so as to fully utilize the effectiveness of the drying mechanism and save energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0039] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0040] Figure 1 This is a front view of the utility model - a mixing system with a drying circulation system.

[0041] Figure 1 As shown in the figure: vertical mixing barrel 1, drying circulation system 2, bracket 3, blower 4, blast pipe 5, heating barrel 6, first hot air pipe 7, second hot air pipe 8, third hot air pipe 9, fourth hot air pipe 10, observation port 11, storage hopper 12, feed hole 13, feed screw 14, feed cylinder 15, drive wheel 16, belt 17, drive motor 18, material receiving box 19, material changing port 20, and discharge port 21. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] The terms such as "left", "right", "front", "back", "up", "down", "front", "back" etc. used in this specification are only for the convenience of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as within the scope of implementation of the present invention without substantially changing the technical content.

[0044] Reference Figure 1 , which is a mixing system with a drying circulation system disclosed in the utility model, comprises a vertical mixing drum 1, a drying circulation system 2 and a bracket 3.

[0045] The upper part of the vertical mixing barrel 1 is cylindrical, the lower part is inverted cone-shaped, and the interior of the vertical mixing barrel 1 is hollow. A bracket 3 is fixed at the bottom of the vertical mixing barrel 1. The bracket 3 is supported by 4 brackets symmetrically distributed at 90° along the center. The bottom of the brackets are welded together with support plates. The bracket 3 is used to support the entire vertical mixing barrel 1 and keep the vertical mixing barrel 1 in a vertical state. The outer wall of the vertical mixing barrel 1 is embedded with an observation port 11, which is a glass window. The observation port 11 is convenient for workers to observe the amount of materials put into the vertical mixing barrel 1 and clean it.

[0046] A storage hopper 12 is provided at the center directly below the vertical mixing barrel 1. The storage hopper 12 is mounted on the center point of the bracket 3, and the storage hopper 12 is in the shape of an inverted triangular cone. A feed hole 13 is provided at the cone tip of the lower part of the vertical mixing barrel 1 facing one end of the bracket 3, and the feed hole 13 is connected to the storage hopper 12 by a feed screw 14 and a feed cylinder 15. A feed screw 14 is rotatably provided at the axis of the vertical mixing barrel 1, and a feed cylinder 15 is wrapped around the feed screw 14. The feed screw 14 fits tightly with the feed cylinder 15, and the feed screw 14 extends upward from the storage hopper 12 to the top of the vertical mixing barrel 1, and the feed cylinder 15 extends upward from the storage hopper 12 to 2-5 cm away from the top of the vertical mixing barrel 1.

[0047] The end of the vertical mixing barrel 1 away from the bracket 3 is provided with a driving device for driving the feeding screw 14 to rotate. The driving device includes a driving wheel 16, a belt 17 and a driving motor 18. The end of the feeding screw 14 away from the storage hopper 12 is coaxially fixed with the driving wheel 16, and the driving wheel 16 is located outside the vertical mixing barrel 1. The driving motor 18 is fixed to the side wall of the vertical mixing barrel 1. The driving shaft of the driving motor 18 and the driving wheel 16 are connected by the belt 17. After the driving motor 18 is started, the driving wheel 16 is driven to rotate through the belt 17, and the driving wheel 16 drives the feeding screw 14 to rotate inside the vertical mixing barrel 1. The feeding screw 14 drives the material outside the vertical mixing barrel 1 from the storage hopper 12 into the vertical mixing barrel 1, and also drives the material to spirally rise from the feeding hole at the bottom to the top of the vertical mixing barrel.

[0048] The inverted cone part of the vertical mixing barrel 1 is provided with a material receiving box 19 on one side of the storage hopper 12. The inclined side wall of the inverted cone part of the vertical mixing barrel 1 is provided with a material change port 20 pointing to the storage hopper 12 and a material discharge port 21 pointing to the material receiving box 19. The material change port 20 and the material discharge port 21 are arranged adjacent to each other at 90 degrees. The material enters from the feed hole 13 and is discharged from the material change port 20, thus forming a cycle. The side walls of the material change port 20 and the side walls of the material discharge port 21 are both hingedly connected with baffles for shielding the material change port 20 and the material discharge port 21, and a handle is fixed on the surrounding side of the baffle. During the cyclic drying process of the material, the material change port 20 is opened and the baffle closes the material discharge port 21. After the material is dried, the baffle at the material change port 20 is turned by the handle to close the material change port 20 and open the material discharge port 21, thereby discharging the dried material.

[0049] A drying circulation system 2 for conveying hot air into the vertical mixing drum 1 is fixed on the outside of the vertical mixing drum 1. The drying circulation system 2 includes a blower 4, a blast pipe 5, a heating drum 6, a first hot air pipe 7, a second hot air pipe 8, a third hot air pipe 9, and a fourth hot air pipe 10. The hot air at the fourth hot air pipe 10 enters the blower 4 through the air inlet of the blower 4. The blower 4 can pass the blast pipe 5 to enter the heating drum 6. The heating drum 6 heats the hot air again and then introduces it into the interior of the vertical mixing drum 1 through the first hot air pipe 7. The vertical mixing drum 1 has an exhaust hole at the top, and a protective net is provided at the connection. The exhaust hole is connected to the second hot air pipe 8, the air outlet of the second hot air pipe 8 is vertically welded to the third hot air pipe 9, the fourth hot air pipe 10 is connected to the third hot air pipe 9 with a bend pipe, and the fourth hot air pipe 10 is connected to the air inlet of the blower 4. The hot air is discharged from the exhaust hole at the top of the vertical mixing drum 1, passes through the protective net, and enters the second hot air pipe 8, the third hot air pipe 9, and the fourth hot air pipe 10 in turn, and then enters the blower 4 again to form a drying circulation system 2. The hot air dries the material in the vertical mixing drum 1, accelerates the drying of the material, and the flowing hot air can ensure uniform drying temperature.

[0050] The outer wall of the vertical mixing barrel 1 is provided with an observation port 11, and a baffle is hingedly connected to the observation port 11. The observation port 11 is convenient for observing the amount of material put in and cleaning, and the baffle can close the observation port 11, so as not to affect the normal operation of the vertical mixing barrel 1. A hook is fixed to the side of the baffle away from the vertical mixing barrel 1, and a clamping rod is hingedly connected to the outer wall of the vertical mixing barrel 1. The end of the clamping rod close to the vertical mixing barrel 1 is hingedly connected to a hanging ring that cooperates with the hook buckle. The hanging ring cooperates with the hook buckle, and then the hanging ring is pressed by the clamping rod, so as to realize the function of locking the baffle to the side wall of the vertical mixing barrel 1.

[0051] The implementation principle and beneficial effects of this embodiment are:

[0052] During the drying process, the material exchange port 20 is in an open state, and the discharge port 21 is in a closed state. The drive motor 18 starts and drives the feeding screw 14 to rotate. During the rotation of the feeding screw 14, the material is driven from the storage hopper 12 through the feed hole 13 into the vertical mixing barrel 1. The material continues to rise with the feeding screw 14, and the material reaches the top and then falls in an umbrella-like manner. After the blower 4 and the heating barrel 5 are started, hot air is transmitted to the vertical mixing barrel 1 and the material is dried by the hot air. After the material is scattered to the bottom of the vertical mixing barrel 1, it is discharged from the material exchange port 20 to the storage hopper 12, and then enters the next cycle. After the drying is completed, the baffle 22 is used to close the material exchange port 20, and the discharge port 21 is opened. The feeding screw 14 drives the material in the storage hopper 12 to be discharged from the vertical mixing barrel 1, and reaches the receiving box 19 through the discharge port 21, so that the dried material is collected.

[0053] The utility model adopts a drying circulation system, in which a blower introduces repeatedly circulated hot air into a vertical mixing drum, and the feeding screw continuously rotates in a storage hopper and a feeding cylinder, thereby making full use of the heat on the surface of the material, accelerating the drying speed of the material, improving the hot air utilization efficiency and working efficiency of the drying mechanism, and achieving the purpose of giving full play to the effectiveness of the drying mechanism and saving energy.

[0054] Of course, the embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A mixing system with a drying circulation system, characterized in that: The invention comprises a vertical mixing barrel (1), a drying circulation system (2) and a bracket (3); the vertical mixing barrel (1) is mounted on the bracket (3); the upper part of the vertical mixing barrel (1) is cylindrical, the lower part is inverted cone, and the interior of the vertical mixing barrel (1) is hollow; a drying circulation system (2) for conveying hot air into the vertical mixing barrel (1) is fixed on the outer side of the vertical mixing barrel (1); the drying circulation system (2) comprises a blower (4), a blast pipe (5), a heating barrel (6), a first hot air pipe (7), a second hot air pipe (8), a third hot air pipe (9), and a fourth hot air pipe (10); the blower (4) is installed on one side below the bracket (3); the air outlet of the blower (4) is fixedly connected to the blast pipe (5) by bolts. The blast pipe (5) is welded to the air inlet of the heating cylinder (6), an electric heating wire is installed in the heating cylinder (6), and the electric heating wire is spiral-shaped. The air outlet of the heating cylinder (6) is welded to the first hot air pipe (7), and the first hot air pipe (7) is welded to the side of the bottom end of the cylindrical part of the vertical mixing cylinder (1). The top of the vertical mixing cylinder (1) is provided with an exhaust hole, and the exhaust hole is welded to the second hot air pipe (8). The air outlet of the second hot air pipe (8) is vertically welded to the third hot air pipe (9), and the upper air outlet of the third hot air pipe (9) is spirally connected to the bent pipe, and the bent pipe is welded to the fourth hot air pipe (10), and the fourth hot air pipe (10) is bolted to the air inlet of the blower (4).

2. The mixing system with a drying circulation system according to claim 1, characterized in that: The support (3) is fixed to the bottom of the vertical mixing barrel (1), and the support (3) is supported by four supports that are symmetrically distributed at 90° along the center, and the bottom of the support (3) is welded together with a support plate.

3. The mixing system with a drying circulation system according to claim 1, characterized in that: A storage hopper (12) is provided at the center directly below the vertical mixing barrel (1). The storage hopper (12) is mounted on the center point of the bracket (3) and is in the shape of an inverted triangular cone. A feed hole (13) is provided at the cone tip of the lower part of the vertical mixing barrel (1) facing one end of the bracket (3). The feed hole (13) is connected to the storage hopper (12) by a feed screw (14) and a feed cylinder (15). A feed screw is rotatably provided at the axis of the vertical mixing barrel (1). (14), a rotating shaft is provided at the center of the feeding screw (14), and a plurality of spirally ascending blades are welded on the rotating shaft; a feeding cylinder (15) is wrapped outside the feeding screw (14), and the feeding screw (14) and the feeding cylinder (15) are tightly fitted, and the feeding screw (14) extends upward from the storage hopper (12) to the top of the vertical mixing cylinder (1), and the feeding cylinder (15) extends upward from the storage hopper (12) to 2-5 cm away from the top of the vertical mixing cylinder (1).

4. The mixing system with a drying circulation system according to claim 1, characterized in that: A driving device for driving a feeding screw (14) to rotate is arranged at one end of the vertical mixing barrel (1) away from the bracket (3), and the driving device comprises a driving wheel (16), a belt (17) and a driving motor (18). The driving wheel (16) is coaxially fixed to one end of the feeding screw (14) away from the storage hopper (12), and the driving wheel (16) is located outside the vertical mixing barrel (1). A driving motor (18) is fixed to the side wall of the vertical mixing barrel (1), and a driving shaft of the driving motor (18) is connected to the driving wheel (16) through a belt (17).

5. The mixing system with a drying circulation system according to claim 1, characterized in that: The inverted cone portion of the vertical mixing barrel (1) is provided with a material receiving box (19) on one side of the material storage hopper (12); the inclined side wall of the inverted cone portion of the vertical mixing barrel (1) is provided with a material changing port (20) pointing to the material storage hopper (12) and a material discharge port (21) pointing to the material receiving box (19); the material changing port (20) and the material discharge port (21) are arranged adjacent to each other at an angle of 90 degrees; the side walls of the material changing port (20) and the side walls of the material discharge port (21) are both hingedly connected with a baffle for shielding the material changing port (20) and the material discharge port (21); and a handle is fixed around the baffle.

6. The mixing system with a drying circulation system according to claim 1, characterized in that: The outside of the heating cylinder (6) of the drying circulation system (2) is wrapped with a heat insulation layer.

7. The mixing system with a drying circulation system according to claim 1, characterized in that: A protective net is provided at the connection between the second hot air pipe (8) of the drying circulation system (2) and the exhaust hole of the mixing cylinder.

8. The mixing system with a drying circulation system according to claim 1, characterized in that: A filter is fixed between the upper air outlet and the bent pipe of the third hot air pipe (9) of the drying circulation system (2); a baffle is provided at the lower air outlet of the third hot air pipe (9) of the drying circulation system (2), and a handle is fixed around the baffle.

9. The mixing system with a drying circulation system according to claim 1, characterized in that: The outer wall of the vertical mixing barrel (1) is provided with an observation port (11), and a baffle is hingedly connected to the observation port (11); a hook is fixed to the side of the baffle away from the vertical mixing barrel (1); a clamping rod is hingedly connected to the outer wall of the vertical mixing barrel (1); and a hanging ring that cooperates with the hook is hingedly connected to one end of the clamping rod close to the vertical mixing barrel (1).

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