Vertical stirring bin for bulk materials

Abstract

The utility model discloses a bulk material vertical stirring bin, which belongs to the technical field of stirring bins and comprises a support, a bin, a conveying component, a driving component and a drying component, the conveying component comprises a middle shaft, a spiral blade and a first tube shell, and the first tube shell is connected with the inner wall of the bin through a supporting rod. A second pipe shell arranged outside the spiral blade in a sleeving mode is arranged at the bottom of the stock bin, a feeding hopper communicated with the second pipe shell is connected to the second pipe shell, and a discharging pipe is connected to the side wall of the stock bin. Heated airflow is fed into the stock bin, materials are dried through hot airflow, descending materials are dried through rising airflow, the airflow makes full contact with the materials, and the drying effect is good. Raised dust above the feeding hopper is collected by utilizing negative pressure airflow generated by the fan, so that the raised dust in a working place is reduced; air exhausted by the stock bin can be filtered, the filter bag can be backwashed by utilizing air flow of the fan, the filtering effect of the filter bag is ensured, and the service life of the filter bag is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of mixing chamber technology, specifically relating to a vertical mixing chamber for bulk materials. Background Technology

[0002] A mixing silo is a silo equipped with mixing and agitation functions. Particles or powders are fed into a hopper connected to the silo. The material in the hopper is conveyed to the top of the silo via a screw conveyor inside the silo. After falling, the material is then conveyed upwards again by the screw conveyor, continuously circulating and agitating to achieve uniform mixing. However, in existing mixing silos, some particles or powders have high moisture content and cannot be dried in the silo. They need to be dried separately before being fed into the hopper, affecting mixing efficiency. Furthermore, the feeding of some powders into the hopper can easily generate dust, impacting the workplace environment. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a vertical mixing bin for bulk materials that can dry the materials in the bin.

[0004] Technical solution: To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A vertical mixing silo for bulk materials includes a support frame, a silo mounted on the support frame, a conveying assembly disposed within the silo, a drive assembly connected to the conveying assembly, and a drying assembly mounted on the support frame and connected to the silo. The conveying assembly includes an intermediate shaft, spiral blades mounted on the intermediate shaft, and a first tube shell sleeved over the spiral blades. The first tube shell is connected to the inner wall of the silo via a support rod. A second tube shell sleeved over the spiral blades is provided at the bottom of the silo, and a feed hopper communicating with the second tube shell is connected to the second tube shell. A discharge pipe is connected to the side wall of the silo.

[0006] Furthermore, the drive assembly includes a drive motor, a drive wheel connected to the drive motor, a pulley disposed on the intermediate shaft, and a belt connecting the drive wheel and the pulley.

[0007] Furthermore, the drying assembly includes a fan, a first working pipe connected to the outlet end of the fan, a heater disposed on the first working pipe, and a control box electrically connected to the fan and the heater, wherein the first working pipe is connected to the hopper.

[0008] Furthermore, a dust collection hood is provided above the feed hopper, and the dust collection hood is connected to the inlet end of the blower via a flexible hose.

[0009] Furthermore, the hopper is equipped with a filter assembly, which includes a working box and a filter cartridge connected to the working box. The filter cartridge is located inside the hopper, and the working box is connected to an air outlet pipe.

[0010] Furthermore, the first working pipe is connected to the working box through the second working pipe, the first working pipe is provided with a first shut-off valve, the second working pipe is provided with a second shut-off valve, and the air outlet pipe is provided with a third shut-off valve.

[0011] Furthermore, the first shut-off valve, the second shut-off valve, and the third shut-off valve are all electrically connected to the control box.

[0012] Furthermore, the filter cartridge includes an outer cylinder, a filter bag disposed within the outer cylinder, and an inner cylinder disposed within the filter bag.

[0013] Furthermore, the drying assembly is provided in more than one form.

[0014] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0015] 1. By setting up drying components, using fans and heaters, heated airflow is sent into the hopper to dry the material. The rising airflow dries the falling material, ensuring full contact between the airflow and the material, resulting in good drying effect.

[0016] 2. A dust collection hood is installed above the feed hopper. The dust collection hood is connected to the inlet of the fan through a flexible hose. The negative pressure airflow generated by the fan is used to collect the dust above the feed hopper, thereby reducing dust in the workplace.

[0017] 3. A filter assembly with a filter cartridge is installed to filter the air discharged from the hopper. The filter assembly is connected to the fan through a second working pipe. The airflow from the fan can backwash the filter bag to ensure the filtration effect of the filter bag and extend its service life. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the silo structure in the embodiment;

[0020] Figure 3 This is a schematic diagram of the structure of the filter component in the embodiment;

[0021] Figure 4 This is a schematic diagram of the filter cartridge structure in an embodiment;

[0022] Figure 5 This is a top view schematic diagram of the dust collection hood in the embodiment. Detailed Implementation

[0023] The present invention will be further illustrated below with reference to specific embodiments. The embodiments are implemented based on the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0024] like Figure 1 As shown, a vertical mixing bin for bulk materials includes a support frame 1, a hopper 2, a conveying assembly 3, a driving assembly 4, and a drying assembly 5. The support frame 1 includes a base and four supporting legs. The hopper 2 is mounted on the support frame 1. The four supporting legs are connected to the outer wall of the hopper 2 and extend upward to the top of the outer wall of the hopper 2 to fix the hopper 2. The hopper 2 is a cylindrical hopper with a cylindrical upper end and an inverted conical lower end.

[0025] like Figure 1 and Figure 2As shown, the conveying assembly 3 is installed inside the hopper 2. The conveying assembly 3 includes an intermediate shaft 31, a spiral blade 32, and a first tube shell 33. The intermediate shaft 31 runs through the hopper 2 from top to bottom. The lower end of the inverted conical hopper body of the hopper 2 is provided with a second tube shell 21 corresponding to the intermediate shaft 31. The spiral blade 32 is installed on the intermediate shaft 31 and extends upward from the bottom end of the intermediate shaft 31 to a certain distance from the inner top wall of the hopper 2. The first tube shell 33 is sleeved on the spiral blade 32 and is connected to the inner wall of the hopper 2 by multiple support rods 34. The upper and lower ends of the first tube shell 33 are open. There is a certain distance between the lower end of the first tube shell 33 and the upper end of the second tube shell 21. The height of the upper end of the first tube shell 33 is lower than the height of the upper end of the spiral blade 32. The drive assembly 4 is connected to the conveying assembly 3. The drive assembly 4 includes a drive motor 41, a drive wheel 42, a pulley 43, and a belt 44. The drive motor 41 is connected to the support leg of the bracket 1 near the top of the hopper 2. The drive wheel 42 is connected to the drive motor 41. The intermediate shaft 31 passes through the top wall of the hopper 2 and is connected to the pulley 43. The pulley 43 and the drive wheel 42 are at the same height. The belt 44 is connected between the drive wheel 42 and the pulley 43. When the drive motor 41 is working, it drives the pulley 43 to rotate through the belt 44, thereby driving the intermediate shaft 31 to rotate. The second shell 21 is connected to a feed hopper 6. An inlet is opened on the side of the second shell 21 and communicates with the feed hopper 6. Particles or powders are poured into the second shell 21. Driven by the drive motor 41, the spiral blades 32 carry the material upward into the hopper 2. After accumulating, the material continues to rise under the conveying action of the spiral blades 32 and the first shell 33, and finally falls from the top of the first shell 33. The side wall of the hopper 2 is connected to a discharge pipe 22 and a return pipe 23. The height of the discharge pipe 22 and the return pipe 23 is lower than the lower end of the first shell 33. The outlet of the return pipe 23 is located on the feed hopper 6. Some of the material returns to the feed hopper 6 through the return pipe 23 and continues to be conveyed and stirred, thereby completing the stirring and mixing of the material. When it is necessary to discharge, the outlet of the return pipe 23 is opened and the falling material is discharged from the discharge pipe 22.

[0026] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, the drying assembly 5 is mounted on the support 1. The drying assembly 5 includes a fan 51, a first working pipe 52, a heater 53, and a control box 54. The fan 51 is connected to the support 1, and its outlet end is connected to the first working pipe 52. The first working pipe 52 is connected to the side wall of the hopper 2, and the connection point between the first working pipe 52 and the hopper 2 is located in the middle of the hopper 2, with the height of the connection point lower than the upper end of the first pipe shell 33. The heater 53 is an electric heater, and its heating element is located inside the first working pipe 52 to heat the air flowing through it. The control box 54 is connected to the support 1, and both the fan 51 and the heater 53 are electrically connected to the control box 54, allowing the operation of the fan 51 and the heater 53 to be controlled by a switch within the control box 54. When the drying assembly 5 is working, the fan 51 sends air into the first working pipe 52. The hot airflow, heated by the heater 53, enters the hopper 2, and the upward airflow dries the falling material. Multiple drying assemblies 5 can be installed as needed. A dust collection hood 81 is installed above the feed hopper 6. The dust collection hood 81 is a large hood. One side of the dust collection hood 81 is connected to the outer wall of the inverted conical hopper body of the hopper 2. The dust collection hood 81 is connected to the inlet end of the blower 51 through a hose 82. When the blower 51 is working, it generates negative pressure inside the dust collection hood 81, which draws in the air above the feed hopper 6, thereby reducing dust flying when the feed hopper 6 is emptying.

[0027] like Figure 1 , Figure 3 and Figure 4 As shown, the top wall of the silo 2 is provided with a ventilation opening, and a filter assembly 7 is provided at the ventilation opening. The filter assembly 7 includes a working box 71 and a filter cartridge 72. The working box 71 is located outside the silo 2, and the filter cartridge 72 is located inside the silo 2 and is connected to the working box 71. Multiple filter cartridges 72 can be provided as needed. The filter cartridge 72 is detachably connected to the top wall of the silo 2 by bolts. The filter cartridge 72 includes an outer cylinder 721, a filter bag 722 and an inner cylinder 723. The outer cylinder 721 is provided with multiple through holes. The filter bag 722 is located inside the outer cylinder 721. The filtration accuracy of the filter bag 722 can be selected as needed. The inner cylinder 723 is located inside the filter bag 722. The inner cylinder 723 is also provided with multiple through holes. An air outlet pipe 711 is connected to the working box 71. The air in the silo 2 is filtered by the filter bag 722 of the filter cartridge 72 and then discharged from the air outlet pipe 711.

[0028] like Figure 1 and Figure 3As shown, the first working pipe 52 is connected to the working box 71 through the second working pipe 55. The first working pipe 52 is equipped with a first shut-off valve 521, the second working pipe 55 is equipped with a second shut-off valve 551, and the air outlet pipe 711 is equipped with a third shut-off valve 712. The first shut-off valve 521, the second shut-off valve 551, and the third shut-off valve 712 are all electric valves and are electrically connected to the control box 54. The control box 54 controls the opening and closing of the three shut-off valves. When it is necessary to dry the material in the hopper 2, the first shut-off valve 521 and the third shut-off valve 712 are opened, the second shut-off valve 551 is closed, and the airflow enters the hopper 2 from the first working pipe 52 to dry the descending material. The dried airflow passes through the filter cartridge 72 and is discharged from the air outlet pipe 711. The powder adheres to the outer wall of the filter bag 722. When it is necessary to backflush the filter bag 722 of the filter cartridge 72, the first shut-off valve 521 and the third shut-off valve 712 are closed, the second shut-off valve 551 is opened, the airflow enters the second working pipe 55 from the first working pipe 52, and then enters the filter cartridge 72 through the working box 71, thereby blowing the powder off the outer wall of the filter bag 722, completing the backflushing, and the powder falls into the hopper 2.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A vertical agitated bin for bulk material, characterized in that, The assembly includes a support (1), a hopper (2) mounted on the support (1), a conveying assembly (3) mounted inside the hopper (2), a drive assembly (4) connected to the conveying assembly (3), and a drying assembly (5) mounted on the support (1) and connected to the hopper (2). The conveying assembly (3) includes an intermediate shaft (31), a spiral blade (32) mounted on the intermediate shaft (31), and a first tube shell (33) sleeved outside the spiral blade (32). The first tube shell (33) is connected to the inner wall of the hopper (2) via a support rod (34). The bottom of the hopper (2) is provided with a second tube shell (21) sleeved outside the spiral blade (32). A feed hopper (6) communicating with the second tube shell (21) is connected to the second tube shell (21). A discharge pipe (22) is connected to the side wall of the hopper (2).

2. A vertical bulk material mixing bin according to claim 1 wherein, The drive assembly (4) includes a drive motor (41), a drive wheel (42) connected to the drive motor (41), a pulley (43) disposed on the intermediate shaft (31), and a belt (44) connected between the drive wheel (42) and the pulley (43).

3. The vertical bulk material mixing bin of claim 1, wherein, The drying assembly (5) includes a fan (51), a first working pipe (52) connected to the outlet end of the fan (51), a heater (53) disposed on the first working pipe (52), and a control box (54) electrically connected to the fan (51) and the heater (53). The first working pipe (52) is connected to the silo (2).

4. A vertical bulk material mixing bin according to claim 3, wherein, A dust collection hood (81) is provided above the feed hopper (6), and the dust collection hood (81) is connected to the inlet end of the fan (51) through a hose (82).

5. A vertical stirring bin for bulk material according to claim 3, characterized in that The hopper (2) is equipped with a filter assembly (7), which includes a working box (71) and a filter cartridge (72) connected to the working box (71). The filter cartridge (72) is located inside the hopper (2), and an air outlet pipe (711) is connected to the working box (71).

6. A vertical stirring bin for bulk material according to claim 5, characterized in that The first working pipe (52) is connected to the working box (71) through the second working pipe (55). The first working pipe (52) is provided with a first shut-off valve (521), the second working pipe (55) is provided with a second shut-off valve (551), and the air outlet pipe (711) is provided with a third shut-off valve (712).

7. A vertical stirring bin for bulk material according to claim 6, characterized in that The first shut-off valve (521), the second shut-off valve (551) and the third shut-off valve (712) are all electrically connected to the control box (54).

8. A vertical stirring bin for bulk material according to claim 5, characterized in that The filter cartridge (72) includes an outer cylinder (721), a filter bag (722) disposed in the outer cylinder (721), and an inner cylinder (723) disposed in the filter bag (722).

9. A vertical stirring bin for bulk material according to claim 3, characterized in that The drying component (5) is provided in one or more parts.

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