Hot air circulation drying system and method for silver powder processing

Abstract

The invention relates to the technical field of silver powder preparation, in particular to a hot air circulation drying system and method for silver powder processing, and the drying system specifically comprises a heating outer box body, a storage box body, a lifting outer cover body, a storage box body conveying rail and a lifting outer cover body conveying rail; the inner space of the heating outer box body is divided into a front part and a rear part, one part is a heating area positioned on the front side, the other part is a separation area positioned on the rear side, the separation area is communicated with the collecting box body, the collecting box body is fixed on the outer wall of the heating outer box body, and a hot air circulation secondary heating device is mounted on the heating outer box body. The hot air circulation secondary heating device is used for collecting and heating hot air in the heating area for secondary utilization, in this way, the heating efficiency is improved, energy waste can be effectively reduced, and the cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of silver powder preparation, and particularly relates to a hot air circulation drying system and method for silver powder processing. Background Art

[0002] After being filtered and washed, silver powder becomes wet material, and a drying device is needed to dry the silver powder to achieve the purpose of drying. During the drying process of silver powder by existing drying devices, a lot of small water droplets generally appear on the top of the device shell. Since these water droplets will drip into the silver powder, the drying efficiency of the silver powder will be reduced. Moreover, some existing drying devices cannot reuse the hot air inside during use, and the used hot air is generally discharged into the atmosphere, resulting in serious heat waste. Therefore, it is particularly important to design a hot air circulation drying system and method for silver powder processing to solve the above problems. Summary of the Invention

[0003] The present invention designs a hot air circulation drying system and method for silver powder processing to solve the above problems. The hot air circulation secondary heating device is used to collect and heat the hot air in the heating area and then reuse it. In this way, not only the heating efficiency is improved, but also the waste of energy can be effectively reduced, and the cost is lowered.

[0004] To solve the above technical problems, the present invention provides a hot air circulation drying system for silver powder processing, which includes a heating outer box, a storage box body, a lifting outer cover body, a storage box body conveying track, and a lifting outer cover body conveying track. The internal space of the heating outer box is divided into two parts, the front part is the heating area, and the rear part is the separation area. The separation area is communicated with the collection box body, and the collection box body is fixed on the outer wall of the heating outer box. The storage box body is connected to the storage box body conveying track through the first track walking wheel structure arranged at the bottom. One end of the storage box body conveying track extends into the upper end of the separation area, and the other end of the storage box body conveying track passes through the blanking area, the feeding area, and the compound area in sequence and extends to the bottom in the heating area. The lifting outer cover body is connected to the lifting outer cover body conveying track through the second track walking wheel structure arranged at the bottom. One end of the lifting outer cover body conveying track extends into the compound area, and the other end of the lifting outer cover body conveying track passes through the collection box body and extends into the separation area. The storage box body conveying track and the lifting outer cover body conveying track are staggered in the separation area and the compound area, and notches are opened at the positions where the storage box body conveying track and the lifting outer cover body conveying track intersect. A hot air circulation secondary heating device is installed on the heating outer box.

[0005] Furthermore, an elevator is provided in the heating zone. Under the action of the elevator, the lifting outer casing drives the storage box to be lifted in the heating zone. A translation bearing plate is further provided inside the upper end of the heating zone. An auxiliary track matching the conveying track of the storage box is provided on the translation bearing plate. The translation bearing plate is driven by a translation cylinder to move back and forth in the heating zone.

[0006] Still further, the hot air circulation secondary heating device includes a hot air collection pipeline assembly, an air extraction pump, heating pipes, and a hot air heating outer casing. The hot air heating outer casing is fixed on the top of the heating outer box body and is communicated with the heating zone. A plurality of heating pipes are provided inside the hot air heating outer casing. The air extraction pump is installed on the top of the hot air heating outer casing and is connected to one end of the hot air collection pipeline assembly. The other end of the hot air collection pipeline assembly is communicated with the lower region of the heating zone. A plurality of hot air through holes are evenly opened on the top of the lifting outer casing.

[0007] Still further, blowing holes are opened at the bottom inside the collection box body. The blowing holes are connected to a high-pressure gas injection mechanism. The top of the collection box body is communicated with a filter cartridge structure through a collection pipeline assembly. The collection pipeline assembly is connected to the top of the collection box body.

[0008] Still further, a first feed inlet and a first discharge outlet for the two ends of the conveying track of the storage box to extend into are respectively opened on the front and rear sides of the heating outer box body. The first feed inlet and the first discharge outlet are each sealed by a first box door switching mechanism installed on the heating outer box body. A second feed inlet for the conveying track of the lifting outer casing to extend into is opened on the right side wall of the collection box body. The second feed inlet is sealed by a second box door switching mechanism installed on the collection box body. Second notches are opened on the first box door switching mechanism and the second box door switching mechanism at positions corresponding to the conveying track of the storage box and the conveying track of the lifting outer casing. A first inclined platform for supporting the conveying track of the storage box is provided on the outer wall at the rear side of the heating outer box body. A second inclined platform for supporting the conveying track of the lifting outer casing is provided on the right outer wall of the collection box body.

[0009] Still further, the upper end of the storage box body is open. Four circular container storage grooves are evenly opened inside the storage box body. A jacking electric cylinder is installed at the center of the bottom inside the storage box body. The output shaft end of the jacking electric cylinder is connected to a jacking plate. Limit blocks are provided on the outer walls on the left and right sides of the storage box body.

[0010] Furthermore: The lifting outer casing is in an inverted U shape, and lifting and stirring mechanisms are respectively arranged at positions corresponding to the material storage grooves of the four circular containers thereon. Limiting plates are arranged on the inner walls on both sides of the lifting outer casing, and connecting grooves are formed in the limiting plates at positions corresponding to the limiting blocks. Lifting transfer plates matching the elevator are arranged on the outer walls on both sides of the lifting outer casing.

[0011] Furthermore: The lifting and stirring mechanism includes a lifting electric cylinder, a rotating shaft, a transmission plate, a rotating seat, a large gear, a small gear and a servo motor. A rotating seat is rotatably connected to the top of the lifting outer casing at positions corresponding to the material storage grooves of the four circular containers. The lifting electric cylinder is fixed on the lifting outer casing and its output shaft end is connected to the horizontally arranged transmission plate. Four rotating shafts are rotatably connected to the bottom of the transmission plate. The lower ends of the four rotating shafts respectively pass through the four rotating seats and are each provided with a stirring blade. Transmission ridges are arranged on the outer wall of the rotating shaft, and transmission connection grooves matching the transmission ridges are formed in the inner wall of the rotating seat. The rotating shaft can move up and down along the inside of the rotating seat under the drive of the lifting electric cylinder, and rotate along with it under the cooperation of the transmission ridges and the transmission connection grooves. The large gear is sleeved and fixed on the outer wall of the rotating seat. The servo motor is fixed on the lifting outer casing. The small gear is sleeved on the output shaft of the servo motor and meshes with the large gear.

[0012] The present invention also provides a hot air circulation drying method for silver powder processing, which specifically includes the following steps: First, place the container storing the silver powder to be heated at the feeding station into the storage box body, and then make the storage box body enter the composite area to be combined with the lifting outer casing. The storage box body drives the lifting outer casing to enter the heating area from the first feeding port for heating and drying. The silver powder in the storage box body completes the removal of moisture during the rising process. After drying, the storage box body automatically separates from the lifting outer casing under the action of the translation bearing plate. The separated storage box body enters the discharging area for discharging and then re-enters the feeding area to wait for loading. The separated lifting outer casing enters the collection box body for collecting residual silver powder. After collection, it enters the composite area to wait for the next combination.

[0013] After adopting the above structure, the present invention has the following beneficial effects: 1. The present invention utilizes the provided hot air circulation secondary heating device to collect and heat the hot air in the heating area and then reuse it. In this way, not only the heating efficiency is improved, but also the waste of energy can be effectively reduced and the cost is lowered.

[0014] 2. The present invention can continuously dry the silver powder in a cycle. Through this design, new silver powder to be heated can be continuously conveyed into the heating outer box body without waiting, greatly improving the drying efficiency and practical performance.

[0015] 3. The present invention can also collect the silver powder remaining in the lifting outer casing, which reduces unnecessary losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0017] Figure 1 It is a top view structure diagram of the present invention.

[0018] Figure 2 It is a combined schematic diagram of the storage box body and the lifting outer casing.

[0019] Figure 3 is Figure 2 an enlarged view of A in SPECIFIC EMBODIMENTS

[0020] As Figure 1 shown, a hot air circulation drying system for silver powder processing includes a heating outer box body 1, a storage box body 5, a lifting outer casing 6, a storage box body conveying track 7 and a lifting outer casing conveying track 8. The internal space of the heating outer box body is divided into two parts, front and back. One is the heating area located at the front side, and the other is the separation area located at the rear side. The separation area is communicated with the collection box body 12. The collection box body 12 is fixed on the outer wall of the heating outer box body. The storage box body 5 is connected to the storage box body conveying track 7 through a first track walking wheel structure 20 provided at the bottom. One end of the storage box body conveying track 7 extends into the upper end of the separation area, and the other end of the storage box body conveying track 7 sequentially passes through the blanking area 2, the feeding area 3 and the compounding area 29 and extends to the bottom inside the heating area. The lifting outer casing 6 is connected to the lifting outer casing conveying track 8 through a second track walking wheel structure 19 provided at the bottom. One end of the lifting outer casing conveying track 8 extends into the compounding area 29, and the other end of the lifting outer casing conveying track 8 passes through the collection box body 12 and extends into the separation area. The storage box body conveying track and the lifting outer casing conveying track are staggered in the separation area and the compounding area, and notches are provided at the positions where the storage box body conveying track and the lifting outer casing conveying track intersect. A hot air circulation secondary heating device is installed on the heating outer box body. The present invention can continuously dry the silver powder in a cycle. Through this design, new silver powder to be heated can be continuously conveyed into the heating outer box body without waiting, which greatly improves the drying efficiency and practical performance.

[0021] As Figure 1A hoist is provided in the heating zone shown. The lifting outer cover drives the storage box to lift in the heating zone under the action of the hoist. A translation bearing plate is also provided inside the upper end of the heating zone. An auxiliary track matching the conveying track of the storage box is provided on the translation bearing plate. The translation bearing plate moves back and forth in the heating zone driven by a translation cylinder 9. When the storage box moves to the highest position, it will automatically fall onto the translation bearing plate. The translation cylinder is started to make the translation bearing plate move. The storage box moves from the auxiliary track to the storage box conveying track 7 in the separation zone through the track running wheels at the bottom.

[0022] As Figure 1 The hot air circulation secondary heating device shown includes a hot air collection pipeline assembly 11, an air extraction pump 10, heating pipes, and a hot air heating outer cover 30. The hot air heating outer cover is fixed on the top of the heating outer box body and is communicated with the heating zone. A plurality of heating pipes are arranged inside the hot air heating outer cover. The air extraction pump is installed on the top of the hot air heating outer cover and is connected to one end of the hot air collection pipeline assembly. The other end of the hot air collection pipeline assembly is communicated with the lower area of the heating zone. A plurality of hot air through holes 15 are evenly opened on the top of the lifting outer cover. The present invention utilizes the provided hot air circulation secondary heating device to collect and heat the hot air in the heating zone and then reuse it. In this way, not only the heating efficiency is improved, but also the waste of energy can be effectively reduced, and the cost is lowered.

[0023] As Figure 1 Blow holes are opened at the bottom inside the collection box body 12 shown. The blow holes are connected to a high-pressure gas injection mechanism. The top of the collection box body 12 is communicated with a filter cartridge structure through a collection pipeline assembly. The collection pipeline assembly is connected to the top of the collection box body. The present invention can also collect the silver powder remaining in the lifting outer cover, playing a role in reducing unnecessary losses.

[0024] As Figure 1 A first feed port and a first discharge port for the two ends of the storage box conveying track to extend into are respectively opened on the front and rear sides of the heating outer box body shown. The first feed port and the first discharge port are each sealed by a first box door switching mechanism installed on the heating outer box body. A second feed port for the lifting outer cover conveying track to extend into is opened on the right side wall of the collection box body. The second feed port is sealed by a second box door switching mechanism installed on the collection box body. Second notches are opened on the first box door switching mechanism and the second box door switching mechanism at positions corresponding to the storage box conveying track and the lifting outer cover conveying track. A first inclined platform 14 for supporting the storage box conveying track is provided on the outer wall at the rear side of the heating outer box body. A second inclined platform 13 for supporting the lifting outer cover conveying track is provided on the right outer wall of the collection box body.

[0025] AsFigure 1 and Figure 2 The upper end of the storage box body shown is open. Four circular container storage grooves 5 are evenly arranged inside the storage box body. A lifting electric cylinder is installed at the center of the inner bottom of the storage box body. The output shaft end of the lifting electric cylinder is connected to a lifting plate 16. Limit blocks 22 are arranged on the outer walls on the left and right sides of the storage box body.

[0026] As Figure 2 shown, the lifting outer cover body is in an inverted U shape. Lifting and stirring mechanisms are respectively arranged at positions corresponding to the four circular container storage grooves 5. Limit plates 21 are arranged on the inner walls on both sides of the lifting outer cover body. Connecting grooves are opened on the limit plates at positions corresponding to the limit blocks. Lifting transmission plates 18 matching the elevator are arranged on the outer walls on both sides of the lifting outer cover body.

[0027] As Figure 2 and Figure 3 shown, the lifting and stirring mechanism includes a lifting electric cylinder 31, a rotating shaft 23, a transmission plate 17, a rotating seat 25, a large gear 26, a small gear 28 and a servo motor 27. A rotating seat is rotatably connected to the top of the lifting outer cover body at positions corresponding to the four circular container storage grooves. The lifting electric cylinder is fixed on the lifting outer cover body and its output shaft end is connected to a horizontally arranged transmission plate. Four rotating shafts are rotatably connected to the bottom of the transmission plate. The lower ends of the four rotating shafts respectively pass through the four rotating seats and are each provided with a stirring blade. Transmission convex strips 24 are arranged on the outer walls of the rotating shafts. Transmission connection grooves matching the transmission convex strips are opened on the inner walls of the rotating seats. The rotating shafts can move up and down along the inside of the rotating seats under the drive of the lifting electric cylinder and rotate together with the transmission convex strips and the transmission connection grooves in cooperation. The large gear is sleeved and fixed on the outer wall of the rotating seat. The servo motor is fixed on the lifting outer cover body. The small gear is sleeved on the output shaft of the servo motor and meshes with the large gear.

[0028] The present invention also provides a hot air circulation drying method for silver powder processing, which specifically includes the following steps: First, place the container storing the silver powder to be heated into the storage box body at the loading station, and then make the storage box body enter the composite area and combine with the lifting outer cover body. The storage box body drives the lifting outer cover body to enter the heating area through the first feed port for heating and drying. The silver powder in the storage box body completes the removal of moisture during the rising process. After drying, the storage box body automatically separates from the lifting outer cover body under the action of the translation carrier plate and enters the separation area. The separated storage box body enters the discharging area for discharging and then re-enters the loading area to wait for loading. The separated lifting outer cover body enters the collection box body for collecting residual silver powder. After collection, it enters the composite area to wait for the next combination. The lifting outer cover body drives the storage box body to lift a certain height under the action of the elevator. Every time a new storage box body is entered, the upper lifting outer cover body will drive the combined storage box body to lift a certain height.

[0029] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should be regarded as within the protection scope of the present invention.

Claims

1. A hot air circulation drying system for silver powder processing, characterized in that: It includes a heating outer box body (1), a storage box body (5), a lifting outer cover body (6), a storage box body conveying track (7) and a lifting outer cover body conveying track (8). The internal space of the heating outer box body is divided into two parts, front and back. One is the heating area located at the front side, and the other is the separation area located at the back side. The separation area is communicated with the collection box body (12), and the collection box body (12) is fixed on the outer wall of the heating outer box body. The storage box body (5) is connected to the storage box body conveying track (7) through a first track walking wheel structure (20) provided at the bottom. One end of the storage box body conveying track (7) extends into the upper end of the separation area, and the other end of the storage box body conveying track (7) sequentially passes through the blanking area (2), the feeding area (3) and the compounding area (29) and extends to the bottom in the heating area. The lifting outer cover body (6) is connected to the lifting outer cover body conveying track (8) through a second track walking wheel structure (19) provided at the bottom. One end of the lifting outer cover body conveying track (8) extends into the compounding area (29), and the other end of the lifting outer cover body conveying track (8) passes through the collection box body (12) and extends into the separation area. The storage box body conveying track and the lifting outer cover body conveying track are staggered in the separation area and the compounding area, and notches are provided at the positions where the storage box body conveying track and the lifting outer cover body conveying track intersect. A hot air circulation secondary heating device is installed on the heating outer box body.

2. The hot air circulation drying system for silver powder processing according to claim 1, characterized in that: A hoist is arranged in the heating area. Under the action of the hoist, the lifting outer cover body drives the storage box body to lift in the heating area. An auxiliary track matching the storage box body conveying track is arranged on the translation bearing plate provided in the upper end of the heating area. The translation bearing plate is driven by a translation cylinder (9) to translate back and forth in the heating area.

3. A hot air circulation drying system for silver powder processing according to claim 1, characterized in that: The hot air circulation secondary heating device includes a hot air collection pipeline assembly (11), an air extraction pump (10), heating pipes and a hot air heating outer cover body (30). The hot air heating outer cover body is fixed on the top of the heating outer box body and is communicated with the heating area. A plurality of heating pipes are arranged in the hot air heating outer cover body. The air extraction pump is installed on the top of the hot air heating outer cover body and is connected to one end of the hot air collection pipeline assembly. The other end of the hot air collection pipeline assembly is communicated with the lower area of the heating area. A plurality of hot air through holes (15) are evenly arranged on the top of the lifting outer cover body.

4. A hot air circulation drying system for silver powder processing according to claim 1, characterized in that: Blow holes are provided at the bottom in the collection box body (12), and the blow holes are connected to a high-pressure gas injection mechanism. The top of the collection box body (12) is communicated with a filter cartridge structure through a collection pipeline assembly, and the collection pipeline assembly is connected to the top of the collection box body.

5. A hot air circulation drying system for silver powder processing according to claim 1, characterized in that: On the front and back sides of the heating outer box body, a first feed inlet and a first discharge outlet are respectively provided for the two ends of the storage box body conveying track to extend into. The first feed inlet and the first discharge outlet are each sealed by a first box door switching mechanism installed on the heating outer box body. A second feed inlet for the lifting outer cover body conveying track to extend into is provided on the right side wall of the collection box body. The second feed inlet is sealed by a second box door switching mechanism installed on the collection box body. Second notches are provided on the first box door switching mechanism and the second box door switching mechanism at positions corresponding to the storage box body conveying track and the lifting outer cover body conveying track. On the outer wall at the rear side of the heating outer box body, a first inclined platform (14) for supporting the storage box body conveying track is provided. On the right outer wall of the collection box body, a second inclined platform (13) for supporting the lifting outer cover body conveying track is provided.

6. The hot air circulation drying system for silver powder processing according to claim 1, characterized in that: The upper end of the storage box body is open. Four circular container storage grooves (5) are evenly provided inside the storage box body. A lifting electric cylinder is installed at the center of the inner bottom of the storage box body. The output shaft end of the lifting electric cylinder is connected to a lifting plate (16). Limiting blocks (22) are provided on the outer walls on the left and right sides of the storage box body.

7. A hot air circulation drying system for silver powder processing according to claim 6, characterized in that: The lifting outer cover body is in an inverted U shape. Lifting and stirring mechanisms are respectively provided at positions corresponding to the four circular container storage grooves (5). Limiting plates (21) are provided on the inner walls on both sides of the lifting outer cover body. Connection grooves are provided on the limiting plates at positions corresponding to the limiting blocks. Lifting transmission plates (18) matching the elevator are provided on the outer walls on both sides of the lifting outer cover body.

8. A hot air circulation drying system for silver powder processing according to claim 6, characterized in that: The lifting and stirring mechanism includes a lifting electric cylinder (31), a rotating shaft (23), a transmission plate (17), a rotating seat (25), a large gear (26), a small gear (28) and a servo motor (27). A rotating seat is rotatably connected to the top of the lifting outer cover body at positions corresponding to the four circular container storage grooves. The lifting electric cylinder is fixed on the lifting outer cover body and its output shaft end is connected to the horizontally arranged transmission plate. Four rotating shafts are rotatably connected to the bottom of the transmission plate. The lower ends of the four rotating shafts respectively pass through the four rotating seats and each is provided with a stirring blade. Transmission convex strips (24) are provided on the outer walls of the rotating shafts. Transmission connection grooves matching the transmission convex strips are provided on the inner walls of the rotating seats. The rotating shafts can move up and down along the inside of the rotating seats under the drive of the lifting electric cylinder and rotate together with the transmission convex strips and the transmission connection grooves in cooperation. The large gear is sleeved and fixed on the outer wall of the rotating seat. The servo motor is fixed on the lifting outer cover body. The small gear is sleeved on the output shaft of the servo motor and meshes with the large gear.

9. A hot air circulation drying method for silver powder processing, characterized in that: Specifically, it includes the following steps: First, place the container storing the silver powder to be heated at the loading station into the storage box body. Then, move the storage box body into the composite area to combine with the lifting outer cover body. The storage box body drives the lifting outer cover body to enter the heating area through the first feed port for heating and drying. The silver powder in the storage box body completes the removal of moisture during the rising process. After drying, the storage box body automatically separates from the lifting outer cover body under the action of the translation carrier plate. The separated storage box body enters the discharging area for discharging and then re-enters the loading area to wait for loading. The separated lifting outer cover body enters the collection box body for collecting residual silver powder. After collection, it enters the composite area to wait for the next combination.

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