A surrounding drying device for sticky and wet mineral powder

Abstract

The present application relates to the technical field of mineral powder drying, and particularly relates to a surrounding type drying device for sticky and wet mineral powder, which comprises a drying box, a mounting frame is arranged at the bottom of the drying box, a discharge port is arranged at the lower part of the side wall of the drying box, an annular channel is arranged between the mounting frame and the inner side wall of the drying box, a control panel is arranged outside the drying box, and a dispersing assembly for preliminarily dispersing and discharging the sticky and wet mineral powder is arranged at the top of the drying box. The combined drying mode of microwave and hot air is adopted, the water can be quickly vibrated and heated by the microwave penetrating into the mineral powder, the problem of external dryness and internal wetness in the traditional hot air drying is solved, the mineral powder is assisted to slide in the annular channel by the exciter, the staying time is prolonged, and the mineral powder is fully contacted with the hot air, so that the uniform drying is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mineral powder drying, and in particular to a surrounding type drying device for sticky and wet mineral powder. BACKGROUND

[0002] In the industrial fields of metallurgy, chemical industry, building materials, etc., the drying treatment of sticky and wet mineral powder is a key link in the production process. Sticky and wet mineral powder usually contains a high moisture content, generally with a moisture content of 20%-50%, and due to the presence of sticky substances or adsorbed water on the surface of the mineral powder particles, it is easy to form agglomeration and caking, which brings great trouble to subsequent storage, transportation and processing. Therefore, efficient, uniform and low-consumption drying of sticky and wet mineral powder is of great significance to improve production efficiency, reduce energy consumption and ensure product quality.

[0003] At present, the drying technology for sticky and wet mineral powder mainly includes hot air drying, drum drying and air flow drying, but there are still the following problems in actual application: sticky and wet mineral powder is easy to stick together to form a lump due to its own stickiness during the drying process. In the existing drying equipment (such as traditional drum dryer and box dryer), the mineral powder is mostly in the form of accumulation or layered movement through the drying area, and the material dispersion is poor, the internal moisture of the caked mineral powder is difficult to evaporate, resulting in incomplete drying, and the caked mineral powder needs subsequent crushing treatment, increasing the process cost, and the drying uniformity is poor, and the traditional hot air drying relies on the heat exchange between hot air and the surface of the material, and the heat is transferred from the surface to the inside, which is easy to cause the material to be "dry on the outside and wet on the inside".

[0004] Therefore, it is necessary to design a surrounding type drying device for sticky and wet mineral powder, which can ensure the full dispersion of the mineral powder during the drying process, ensure that the mineral powder will not caking during the drying process, prolong the residence time of the mineral powder in the drying area, and combine with efficient drying method, thereby improving the drying efficiency of the sticky and wet mineral powder. SUMMARY

[0005] In order to overcome the shortcomings of the above-mentioned prior art, the present application provides a surrounding type drying device for sticky and wet mineral powder.

[0006] The technical scheme of the present application is: a surrounding type drying device for sticky and wet mineral powder, comprising a drying box, a mounting frame, an annular channel, a control panel, a dispersion assembly, a feeding assembly, a preliminary drying assembly and a drying assembly, the mounting frame is arranged at the bottom of the drying box, a discharge port is arranged at the lower part of the side wall of the drying box, the annular channel is arranged between the mounting frame and the inner side wall of the drying box, the control panel is arranged outside the drying box, the dispersion assembly for preliminarily dispersing and discharging the sticky and wet mineral powder is arranged at the top of the drying box, the feeding assembly for intermittently feeding the sticky and wet mineral powder into the dispersion assembly is arranged outside the drying box, the preliminary drying assembly for processing the sticky and wet mineral powder transmitted by the dispersion assembly is arranged outside the drying box, the sticky and wet mineral powder subjected to drying treatment by the preliminary drying assembly is fed into the annular channel, the drying assembly for re-drying the sticky and wet mineral powder in the annular channel is arranged at the lower part of the drying box, and the controller in the control panel is connected with the power elements in the dispersion assembly, the feeding assembly, the preliminary drying assembly and the drying assembly through lines.

[0007] As a preferred, the dispersion assembly comprises a mounting cover, a guide hopper, a mesh frame, a dispersion disc, a first rotating shaft, a first motor, dispersion blades, a scraper and a guide channel, the mounting cover is arranged at the top of the drying box, the guide hopper is arranged on the mounting cover, the mesh frame is arranged in the mounting cover, the dispersion disc is arranged at the upper part in the drying box, the first rotating shaft is rotatably arranged between the guide hopper and the center position of the dispersion disc, the first motor is arranged at the top of the guide hopper, the output shaft of the first motor is connected with the top of the first rotating shaft, the dispersion blades are arranged on the first rotating shaft, the dispersion blades are in contact with the mesh frame, the scraper is arranged at the lower part of the first rotating shaft, the scraper is matched with the upper part of the dispersion disc, the guide channel is communicated with one side of the dispersion disc, the guide channel penetrates through the upper side wall of the drying box, and the first motor is connected with the controller in the control panel through lines.

[0008] As a preferred, the feeding assembly comprises a shell, a transmission roller, a transmission belt, a loading hopper, a second motor, a support plate, a feeding hopper and an arc-shaped guide plate, the shell is arranged outside the drying box, the upper part of the shell is communicated with the guide hopper, the transmission roller is rotatably arranged on the upper and lower sides in the shell, the transmission belt is wound between the two transmission rollers, the loading hopper is arranged on the transmission belt at intervals, the second motor is arranged at the lower side wall of the shell, the second motor is connected with the lower transmission roller, the support plate is arranged in the shell, the support plate is located on the inner side of the annular transmission belt, the support plate supports the transmission belt, the feeding hopper is communicated with the lower part of the shell, the arc-shaped guide plate is arranged at the bottom of the shell, and the second motor is connected with the controller in the control panel through lines.

[0009] As preferred, the preliminary drying assembly comprises support frames, an arc-shaped box, arc-shaped supports, annular conveying assemblies, microwave generators and discharge hoppers. The outer side of the drying box is provided with a plurality of support frames for supporting the arc-shaped box. The inner side wall of the arc-shaped box is provided with arc-shaped supports. The arc-shaped supports are provided with two annular conveying assemblies that are vertically offset. The annular conveying assemblies are composed of conveying rollers and arc-shaped conveying belts and servo motors. The conveying rollers are arranged on the arc-shaped supports in a spaced rotating manner and are distributed in a fan shape. The arc-shaped conveying belts are located on the conveying rollers at both sides. The arc-shaped supports are provided with servo motors that are rotatably connected to one of the conveying rollers. The inner side wall of the arc-shaped box is provided with microwave generators near the annular conveying assemblies. The arc-shaped supports near the discharge position of the annular conveying assemblies are provided with discharge hoppers. The outlet position of the upper discharge hopper is located directly above the feeding position of the lower annular conveying assembly. The lower discharge hopper penetrates the drying box. The outlet position of the lower discharge hopper is located directly above the annular channel. The microwave generators and the servo motors of the annular conveying assemblies are connected to the controller in the control panel through lines.

[0010] As preferred, the drying assembly comprises a high-pressure fan, a tubular heater, a dehumidifier, a recovery frame and a recovery pipeline. The lower part of the drying box is provided with a high-pressure fan. The air outlet of the high-pressure fan is located on the inner side of the drying box. The side wall of the drying box is provided with a tubular heater that is connected to the high-pressure fan. The air inlet of the tubular heater is provided with a dehumidifier. The discharge outlet at the lower part of the side wall of the drying box is provided with a recovery frame. The upper part of the recovery frame is in communication with one end of a recovery pipeline. The other end of the recovery pipeline is connected to the pipeline position of the dehumidifier. The high-pressure fan is connected to the controller in the control panel through lines.

[0011] As preferred, the assembly further comprises a crushing assembly. The discharge hoppers are provided with crushing assemblies for dispersing sticky and wet mineral powder. The crushing assembly comprises a second rotating shaft, a crushing roller and a third motor. The second rotating shaft is rotatably arranged in the discharge hopper in a symmetrical manner. The second rotating shaft is provided with a crushing roller. The outer side wall of the discharge hopper is provided with a third motor. The output shaft of the third motor is connected to the end of the second rotating shaft. The third motor is connected to the controller in the control panel through lines.

[0012] As preferred, the assembly further comprises a scraping plate. The arc-shaped supports near the discharge position of the annular conveying assemblies are provided with scraping plates. The scraping plates are in contact with the conveying belts of the annular conveying assemblies.

[0013] As preferred, the annular channel is provided with vibration exciters at intervals. The vibration exciters are connected to the controller in the control panel through lines.

[0014] As preferred, the dispersing disc is provided with heating wires. The relay connected in the circuit of the heating wires is connected to the controller in the control panel through lines.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1. The initial dispersion of mineral powder is achieved through the mesh frame, dispersion blades and scraper of the dispersion component, and the secondary crushing of any lumps that may be formed is achieved in conjunction with the crushing roller of the crushing component. Combined with the interval conveying method of the feeding component, the accumulation and agglomeration of mineral powder are avoided, eliminating the need for subsequent crushing processes and reducing process costs.

[0017] 2. A combined microwave and hot air drying method is adopted. Microwaves can penetrate the interior of the mineral powder, causing the moisture to vibrate and generate heat quickly, solving the problem of external dryness and internal moisture in traditional hot air drying. At the same time, the mineral powder slides in the annular channel with the assistance of vibrators, extending the residence time and fully contacting the hot air to ensure uniform drying.

[0018] 3. The circular path formed by the ring conveyor and the ring channel increases the drying process of the mineral powder. The hot air circulation system reuses heat through the recovery pipe and dehumidifier, reducing energy loss. The precise control of the adjustable hot air temperature of 80-150℃ and the wind speed of 1-3m / s further improves the moisture evaporation rate. Through the synergistic effect of multiple components, the integrated processing of sticky and wet mineral powder from dispersion, drying to collection is realized, which not only ensures the drying quality, but also reduces production energy consumption and labor costs. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention.

[0021] Figure 3 This is a schematic diagram of the exploded structure of the dispersion component of the present invention.

[0022] Figure 4 This is an exploded structural diagram of the feeding assembly of the present invention.

[0023] Figure 5 This is a three-dimensional structural diagram of the preliminary drying component of the present invention.

[0024] Figure 6 This is a three-dimensional structural diagram of the drying component of the present invention.

[0025] Figure 7 This is a three-dimensional structural diagram of the pulverizing component of the present invention.

[0026] In the drawing marks: 1-drying box, 2-mounting frame, 3-annular channel, 4-control panel, 5-dispersing assembly, 51-mounting cover, 52-feeding hopper, 53-net frame, 54-dispersing disc, 55-first rotating shaft, 56-first motor, 57-dispersing blade, 58-scraping plate, 59-feeding channel, 6-feeding assembly, 61-housing, 62-transport roller, 63-transport belt, 64-feeding hopper, 65-second motor, 66-supporting plate, 67-feeding hopper, 68-arc-shaped feeding plate, 7-preliminary drying assembly, 71-supporting frame, 72-arc-shaped box, 73-arc-shaped supporting frame, 74-annular conveying assembly, 75-microwave generator, 76-feeding hopper, 8-drying assembly, 81-high-pressure fan, 82-tube heater, 83-dehumidifier, 84-recovery frame, 85-recovery pipeline, 9-pulverizing assembly, 91-second rotating shaft, 92-pulverizing roller, 93-third motor, 10-scraping plate. DETAILED DESCRIPTION

[0027] The following description is merely exemplary of the present application and is not intended to limit the scope of the application.

[0028] Embodiment: As shown in Figure 1 and Figure 2 , a surrounding type drying device for sticky and wet mineral powder comprises a drying box 1, a mounting frame 2, an annular channel 3, a control panel 4, a dispersing assembly 5, a feeding assembly 6, a preliminary drying assembly 7 and a drying assembly 8. The mounting frame 2 is arranged on the bottom of the drying box 1. The drying box 1 is provided with a discharge port at the lower part of the side wall. The annular channel 3 is arranged between the mounting frame 2 and the inner side wall of the drying box 1. The annular channel 3 is provided with vibration exciters at intervals at the bottom. The vibration exciters are ZQ-50 electromagnetic vibration exciters, which have the characteristics of small volume, light weight, large output and wide frequency band, and are beneficial to the sliding of the mineral powder on the annular channel 3. The vibration exciters are connected to the controller in the control panel 4 through a line. The control panel 4 is arranged outside the drying box 1. The dispersing assembly 5 for preliminarily dispersing and feeding the sticky and wet mineral powder is arranged on the top of the drying box 1. The feeding assembly 6 for intermittently feeding the sticky and wet mineral powder to the dispersing assembly 5 is arranged outside the drying box 1. The preliminary drying assembly 7 for treating the sticky and wet mineral powder transmitted by the dispersing assembly 5 is arranged outside the drying box 1. The preliminary drying assembly 7 transmits the treated sticky and wet mineral powder to the annular channel 3. The drying assembly 8 for further drying the sticky and wet mineral powder on the annular channel 3 is arranged at the lower part of the drying box 1.

[0029] As shown in Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, the dispersion assembly 5 includes a mounting cover 51, a guide hopper 52, a mesh frame 53, a dispersion disc 54, a first rotating shaft 55, a first motor 56, a dispersion blade 57, a scraper 58 and a guide channel 59. The mounting cover 51 is arranged on the top of the drying box 1. The guide hopper 52 is arranged on the mounting cover 51. The mesh frame 53 is arranged in the mounting cover 51. The dispersion disc 54 is arranged on the upper portion of the drying box 1. The heating wire is arranged in the dispersion disc 54. The relay connected in the circuit of the heating wire is connected with the controller of the control panel 4 through the circuit. The first rotating shaft 55 is rotatably arranged between the guide hopper 52 and the center position of the dispersion disc 54. The first motor 56 is arranged on the top of the guide hopper 52. The output shaft of the first motor 56 is connected with the top of the first rotating shaft 55. The dispersion blade 57 is arranged on the first rotating shaft 55. The dispersion blade 57 is in contact with the mesh frame 53. The scraper 58 is arranged on the lower portion of the first rotating shaft 55. The scraper 58 is matched with the upper portion of the dispersion disc 54. The guide channel 59 is communicated with one side of the dispersion disc 54. The guide channel 59 penetrates through the upper side wall of the drying box 1. The first motor 56 is connected with the controller in the control panel 4 through the circuit.

[0030] As shown in Figure 1 and Figure 4 The feeding assembly 6 includes a shell 61, a transmission roller 62, a transmission belt 63, a charging hopper 64, a second motor 65, a support plate 66, a feeding hopper 67 and an arc-shaped guide plate 68. The shell 61 is arranged on the outer side of the drying box 1. The upper portion of the shell 61 is communicated with the guide hopper 52. The transmission roller 62 is rotatably arranged on the upper and lower sides in the shell 61. The transmission belt 63 is wound between the two transmission rollers 62. The charging hopper 64 is arranged on the transmission belt 63 at intervals. The second motor 65 is arranged on the lower side wall of the shell 61. The second motor 65 is connected with the transmission roller 62 on the lower side. The support plate 66 is arranged in the shell 61. The support plate 66 is located on the inner side of the annular transmission belt 63. The support plate 66 supports the transmission belt 63. The feeding hopper 67 is communicated with the lower portion of the shell 61. The arc-shaped guide plate 68 is arranged on the bottom in the shell 61. The second motor 65 is connected with the controller in the control panel 4 through the circuit.

[0031] As shown in Figure 1 and Figure 5As shown, the preliminary drying assembly 7 comprises a support frame 71, an arc-shaped box 72, an arc-shaped support 73, an annular conveying assembly 74, a microwave generator 75 and a lower hopper 76. The drying box 1 is provided with a plurality of support frames 71 outside, the support frames 71 are used to support the arc-shaped box 72, the inner side wall of the arc-shaped box 72 is provided with an arc-shaped support 73, the arc-shaped support 73 is provided with two annular conveying assemblies 74 which are up and down staggered, the annular conveying assembly 74 is composed of conveying rollers and an arc-shaped conveying belt and a servo motor, a plurality of conveying rollers are movably arranged on the arc-shaped support 73, the conveying rollers are distributed in a fan shape, the arc-shaped conveying belt is located on the conveying rollers at both sides, the arc-shaped support 73 is provided with a servo motor, the servo motor is movably connected with one of the conveying rollers, the inner side wall of the arc-shaped box 72 is provided with a microwave generator 75 near the annular conveying assembly 74, the arc-shaped support 73 is provided with a lower hopper 76 near the discharge position of the annular conveying assembly 74, the outlet position of the upper lower hopper 76 is located directly above the feeding position of the lower annular conveying assembly 74, the lower lower hopper 76 penetrates through the drying box 1, the outlet position of the lower lower hopper 76 is located directly above the annular channel 3, the microwave generator 75 and the servo motor of the annular conveying assembly 74 are connected with the controller in the control panel 4 through lines, and the arc-shaped support 73 near the discharge position of the annular conveying assembly 74 is provided with a scraping plate 10, and the scraping plate 10 is in contact with the conveying belt of the annular conveying assembly 74.

[0032] As shown in Figure 1 and Figure 6 , the drying assembly 8 comprises a high-pressure fan 81, a tubular heater 82, a dehumidifier 83, a recovery frame 84 and a recovery pipeline 85, the drying box 1 is provided with a high-pressure fan 81 at the lower part, the air outlet of the high-pressure fan 81 is located inside the drying box 1, the drying box 1 is provided with a tubular heater 82 on the side wall, the tubular heater 82 is connected with the high-pressure fan 81, the tubular heater 82 is provided with a dehumidifier 83 at the air inlet, the drying box 1 is provided with a recovery frame 84 at the discharge port of the lower part of the side wall, the recovery frame 84 is in communication with one end of the recovery pipeline 85 at the upper part, the other end of the recovery pipeline 85 is connected with the pipeline position of the dehumidifier 83, and the high-pressure fan 81 is connected with the controller in the control panel 4 through lines.

[0033] As shown in Figure 5 and Figure 7 , the assembly further comprises a crushing assembly 9, the crushing assembly 9 is arranged in the lower hopper 76 for dispersing the sticky and wet mineral powder, the crushing assembly 9 comprises a second rotating shaft 91, a crushing roller 92 and a third motor 93, the second rotating shaft 91 is movably arranged in the lower hopper 76, the crushing roller 92 is arranged on the second rotating shaft 91, the third motor 93 is arranged on the outer side wall of the lower hopper 76, the output shaft of the third motor 93 is connected with the end of the second rotating shaft 91, and the third motor 93 is connected with the controller in the control panel 4 through lines.

[0034] When the sticky mineral powder needs to be dried, one external conveying assembly is extended into the lower end of the annular channel 3 in the recycling frame 84, and the other external conveying assembly conveys the sticky mineral powder into the feeding hopper 67. The control panel 4 controls the operation of the heating wire in the dispersion disc 54, the microwave generator 75, the high-pressure fan 81, the tubular heater 82, the first motor 56, the second motor 65, the third motor 93, and the servo motor of the annular conveying assembly 74. The second motor 65 drives the transmission roller 62 to rotate counterclockwise, and the transmission belt 63 drives the charging hopper 64 to rotate counterclockwise, so that the sticky mineral powder on the arc-shaped guide plate 68 is loaded into the charging hopper 64 and then moves upward to fall into the guide hopper 52. The sticky mineral powder falls into the mesh frame 53 through the guide hopper 52. The first motor 56 drives the first shaft 55 to rotate, and the first shaft 55 drives the dispersion blade 57 and the scraper 58 to rotate. The dispersion blade 57 rotates to disperse the sticky mineral powder on the mesh frame 53, and the dispersed mineral powder falls into the dispersion disc 54. The temperature of the dispersion disc 54 is increased to heat the mineral powder. The first shaft 55 drives the scraper 58 to rotate, which pushes the mineral powder in the dispersion disc 54 through the guide channel 59 to the arc-shaped conveying belt of the annular conveying assembly 74. The servo motor of the annular conveying assembly 74 drives the conveying roller to rotate clockwise, which moves the mineral powder through the arc-shaped conveying belt. The microwave generator 75 operates, and the microwaves can penetrate the interior of the mineral powder, causing the water molecules in the mineral powder to vibrate rapidly and generate heat, thereby uniformly heating the mineral powder and breaking the water binding force in the mineral powder. The mineral powder is conveyed and falls into the lower hopper 76. The two third motors 93 on the lower hopper 76 drive the second shaft 91 to rotate towards each other, and then the two crushing rollers 92 rotate towards each other to further disperse and crush the agglomerated mineral powder, which falls onto the arc-shaped conveying belt of the lower annular conveying assembly 74. Then, the inner-side mineral powder is uniformly heated again by the lower-side microwave generator 75, and finally flows into the annular channel 3 through the lower hopper 76. The microwaves preliminarily heat the mineral powder, causing the internal water in the mineral powder to evaporate to the surface. The control panel 4 controls the operation of the exciter, and the preliminarily dried mineral powder gradually slides down along the annular channel 3. The high-pressure fan 81 sprays the air heated by the tubular heater 82 into the inner side of the drying box 1, so that the hot air can fully contact the mineral powder. The temperature and wind speed of the hot air can be accurately controlled by the control panel 4, with a temperature range of 80-150°C and a wind speed range of 1-3 m / s. The hot air rapidly removes the water on the surface of the mineral powder in the annular channel 3, improving the drying efficiency. The mineral powder in the annular channel 3 falls onto the conveying assembly in the recycling frame 84, which conveys the mineral powder out for collection.The hot air flowing out from the recovery frame 84 can enter the dehumidifier 83 through the recovery pipe 85 for dehumidification treatment and then be sucked into the tubular heater 82 for heating, completing the recycling use of the hot air. The combined drying method of microwaves and hot air can uniformly heat the mineral powder, the hot air is blown out and fully contacts the mineral powder, and the mineral powder is fully mixed in the annular channel 3, thereby ensuring the uniformity of the drying of the mineral powder.

[0035] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application and are not a limitation on the scope of protection of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present application.

Claims

1. A circular drying device for sticky, wet mineral powder, characterized in that: The equipment includes a drying chamber (1), a mounting frame (2) at the bottom of the drying chamber (1), a discharge port at the lower part of the side wall of the drying chamber (1), an annular channel (3) between the mounting frame (2) and the inner side wall of the drying chamber (1), a control panel (4) on the outside of the drying chamber (1), a dispersion component (5) for preliminary dispersion and feeding of sticky wet mineral powder at the top of the drying chamber (1), the dispersion component (5) including a mounting cover (51), the mounting cover (51) at the top of the drying chamber (1), a guide hopper (52) on the mounting cover (51), a wire frame (53) inside the mounting cover (51), and a dispersion disc (54) at the upper part of the drying chamber (1). A first rotating shaft (55) is rotatably arranged between the center position of the guide hopper (52) and the dispersion disk (54). A dispersion blade (57) is arranged on the first rotating shaft (55). The dispersion blade (57) contacts and cooperates with the mesh frame (53). A scraper (58) is arranged at the lower part of the first rotating shaft (55). The scraper (58) cooperates with the upper part of the dispersion disk (54). A guide channel (59) is connected to one side of the dispersion disk (54). The guide channel (59) penetrates the upper side wall of the drying box (1). A feeding component (6) is installed on the outside of the drying box (1) to intermittently transport sticky wet mineral powder into the dispersion component (5). A feeding component (6) capable of dispersing the wet mineral powder is arranged on the outside of the drying box (1). A preliminary drying assembly (7) is used to process the sticky and wet mineral powder transferred from the bulk assembly (5). The preliminary drying assembly (7) includes an arc-shaped box (72). An arc-shaped support (73) is provided on the inner wall of the arc-shaped box (72). Two annular conveyor assemblies (74) are provided on the arc-shaped support (73) with staggered upper and lower parts. A microwave generator (75) is provided on the inner wall of the arc-shaped box (72) near the annular conveyor assemblies (74). A hopper (76) is provided on the arc-shaped support (73) near the discharge position of the annular conveyor assemblies (74). The outlet position of the upper hopper (76) is located directly above the feed position of the lower annular conveyor assemblies (74). The lower hopper (76) 76) The outlet of the lower hopper (76) is located directly above the annular channel (3) through the drying box (1). The preliminary drying component (7) transports the dried sticky and wet mineral powder to the annular channel (3). The lower part of the drying box (1) is provided with a drying component (8) that can further dry the sticky and wet mineral powder on the annular channel (3). The controller in the control panel (4) is connected to the power element in the dispersing component (5), the feeding component (6), the preliminary drying component (7), and the drying component (8) through the line. It also includes a crushing component (9). The hopper (76) is provided with a crushing component (9) to disperse the sticky and wet mineral powder.

2. The surrounding drying device for sticky and wet mineral powder as described in claim 1, characterized in that: The feeding assembly (6) includes a housing (61), which is installed on the outside of the drying box (1). The upper part of the housing (61) is connected to the guide hopper (52). The upper and lower sides of the housing (61) are rotatably equipped with transmission rollers (62). A transmission belt (63) is wound between the two transmission rollers (62). A feeding hopper (64) is spaced on the transmission belt (63). A second motor (65) is provided on the lower part of the outer wall of the housing (61). The second motor (65) is connected to the lower transmission roller (62). A support plate (66) is provided inside the housing (61). The support plate (66) is located inside the annular transmission belt (63) and supports the transmission belt (63). A feeding hopper (67) is connected to the lower part of the housing (61). An arc-shaped guide plate (68) is provided at the bottom of the housing (61). The second motor (65) is connected to the controller in the control panel (4) through a line.

3. The circular drying device for sticky and wet mineral powder as described in claim 2, characterized in that: The drying assembly (8) includes a high-pressure blower (81). The high-pressure blower (81) is located at the bottom of the drying chamber (1). The outlet of the high-pressure blower (81) is located inside the drying chamber (1). A tubular heater (82) is provided on the side wall of the drying chamber (1). The tubular heater (82) is connected to the high-pressure blower (81). A dehumidifier (83) is provided at the air inlet of the tubular heater (82). A recycling frame (84) is provided on the discharge port at the bottom of the side wall of the drying chamber (1). The upper part of the recycling frame (84) is connected to one end of the recycling pipe (85). The other end of the recycling pipe (85) is connected to the pipe position of the dehumidifier (83). The high-pressure blower (81) is connected to the controller in the control panel (4) through a line.

4. The circular drying device for sticky and wet mineral powder as described in claim 3, characterized in that: The crushing assembly (9) includes a second rotating shaft (91). The second rotating shaft (91) is symmetrically and rotatably arranged inside the hopper (76). The second rotating shaft (91) is equipped with crushing rollers (92). The outer wall of the hopper (76) is equipped with a third motor (93). The output shaft of the third motor (93) is connected to the end of the second rotating shaft (91). The third motor (93) is connected to the controller in the control panel (4) through a line.

5. The circular drying device for sticky and wet mineral powder as described in claim 4, characterized in that: It also includes a scraper (10), and the arc-shaped bracket (73) near the discharge position of the annular conveyor assembly (74) is provided with a scraper (10), and the scraper (10) is in contact with the conveyor belt of the annular conveyor assembly (74).

6. The circular drying device for sticky and wet mineral powder as described in claim 5, characterized in that: Vibrators are spaced apart at the bottom of the annular channel (3), and the vibrators are connected to the controller in the control panel (4) via lines.

7. The circular drying device for sticky and wet mineral powder as described in claim 6, characterized in that: The dispersion disc (54) is equipped with a heating wire inside, and the relay connected in the heating wire circuit is connected to the controller of the control panel (4) through a line.

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