A stannous sulfate air-circulating drying device and its usage method

Abstract

This invention discloses an air-circulating drying device for stannous sulfate, comprising a base, a support frame on the base, and a drying chamber mounted on the support frame. The drying chamber has openings at both the top and bottom. A filter cover is connected to the top opening of the drying chamber, and a horizontally movable material box is connected to the bottom opening of the drying chamber. A moving mechanism for moving the material box is provided at the bottom of the material box. A guide mechanism cooperating with the moving mechanism is provided on the base. A hot air blower and a dehydration tank are also provided on the base. A circulation pipe connects the dehydration tank and the filter cover, and a solenoid valve is installed in the circulation pipe. A Y-shaped pipe connects to the air inlet of the hot air blower. This invention has a reasonable structural design. The support frame can move to the bottom of the drying chamber with the guide block. After the electric push rod is activated, the material box and the drying chamber are connected. Hot air is delivered to the air duct by the hot air blower. The material is lifted by the angle steel and falls, allowing it to contact the hot air for drying.

Description

Technical Field

[0001] This invention relates to the field of drying equipment technology, and in particular to a stannous sulfate air-circulating drying device and its method of use. Background Technology

[0002] Stannous sulfate is a white or light yellow crystalline powder, soluble in water and dilute sulfuric acid, and decomposes rapidly in aqueous solutions. Its main uses are in tin plating and as a chemical reagent. It is also used for anodizing and coloring aluminum alloy coatings, as a mordant in the printing and dyeing industry, and as a hydrogen peroxide remover in organic solvents. Stannous sulfate requires drying during production. Traditional dryers have low drying efficiency, require long drying times, and have poor waste heat utilization. Therefore, we propose a stannous sulfate air-circulating drying device and its operating method. Summary of the Invention

[0003] The purpose of this invention is to provide an air-circulating drying device for stannous sulfate to overcome the technical problems existing in the prior art.

[0004] To achieve the above-mentioned technical objectives and effects, the present invention provides the following technical solution:

[0005] A stannous sulfate air-circulating drying device includes a base, a frame on the base, a drying chamber mounted on the frame, openings at both the top and bottom of the drying chamber, a filter cover connected to the top opening of the drying chamber, and a horizontally movable material box connected to the bottom opening of the drying chamber. A moving mechanism for moving the material box is provided at the bottom of the material box, and a guide mechanism cooperating with the moving mechanism is provided on the base. A hot air blower and a dehydration chamber are also provided on the base. A circulation pipe connects the dehydration chamber and the filter cover, and a solenoid valve is installed inside the circulation pipe. A Y-shaped pipe connects to the air inlet of the hot air blower, with a dust filter installed at one end of the Y-shaped pipe and the other end connected to the dehydration chamber. A ventilation duct connects to the air outlet of the hot air blower, and the other end of the ventilation duct leads into the drying chamber.

[0006] As a further technical solution, the aforementioned moving mechanism includes a bracket with moving wheels mounted on a base, an electric push rod vertically mounted on the bracket, and the moving rod of the electric push rod connected to the bottom of the material box; the guiding mechanism includes a guide groove mounted on the upper surface of the base, a guide screw horizontally mounted in the guide groove, one end of the guide screw connected to a drive motor, and the other end of the guide screw rotatably connected to the side wall of the guide groove; a guide block that can move along the guide screw is sleeved on the guide screw, and the top of the guide block is connected to the bracket, thereby driving the bracket to move along the guide rod.

[0007] As a further technical solution, the drying oven described above is equipped with a hollow tube that is rotatably oriented in a front-to-back direction. The front end of the hollow tube extends out of the front side wall of the drying oven and is rotatably connected to the air duct by a sealed bearing I. A fixing rod is provided at the rear of the hollow tube. The rear end of the fixing rod is fixedly connected to the rear wall of the drying oven, and the front end of the fixing rod extends into the hollow tube from the rear end of the hollow tube and is rotatably connected to the rear end of the hollow tube by a sealed bearing II.

[0008] As a further technical solution, a bevel gear ring is fitted onto the outer wall of the front end of the hollow tube mentioned above, and a bevel gear meshes on the bevel gear ring. The bevel gear is driven to rotate by a steering motor, and the steering motor is fixedly connected to the outer wall of the drying oven.

[0009] As a further technical solution, three support rods are circumferentially connected to the outer wall of the hollow tube located in the drying oven, and angle steel is connected to the outer end of the support rods. The tube wall of the hollow tube has multiple ventilation holes, and filter screens are connected inside the ventilation holes.

[0010] As a further technical solution, the front end of the aforementioned fixed rod is fitted with an abutment block, the outer wall of which has an annular wave structure; the support rod has a transmission cavity along its length, and a rectangular rod is provided in the transmission cavity. The inner end of the rectangular rod extends from the transmission cavity into the hollow tube and movably abuts against the outer wall of the abutment block. A retaining ring is connected to the outer wall of the rectangular rod located in the transmission cavity. A tension spring is connected between the retaining ring and the inner wall of the transmission cavity located at the inner end. A toothed groove is opened at the outer end of the rectangular rod, and a small gear meshes on the toothed groove. The small gear is fitted onto the driven shaft, which is perpendicular to the rectangular rod. Both ends of the driven shaft extend out of the side wall of the support rod, and multiple blades are connected to the extended parts.

[0011] As a further technical solution, the bottom of the inner cavity of the filter cover described above is connected to a perforated plate, and a dust filter bag is installed in the holes of the perforated plate. A pulse air pump is installed at the upper end of the filter cover.

[0012] As a further technical solution, a fixing frame is inserted into the dehydration tank described above. The upper and lower sides of the inner wall of the fixing frame are respectively connected to a sponge layer and an activated carbon layer. The fixing frame is located between the Y-shaped tube and the circulation tube.

[0013] A method of using the stannous sulfate air-circulating drying apparatus as described above includes the following steps:

[0014] S1. Material loading: Place the stannous sulfate to be processed into the material box. After the drive motor starts, the guide block moves the bracket to the bottom of the drying box. After the electric push rod starts, the material box and the drying box are connected.

[0015] S2. Ventilation and drying: After the hot air blower is started, hot air enters the drying chamber along the air duct. After the steering motor is started, the bevel gear meshes with the bevel gear ring, and the hollow tube drives the support rod to rotate, so that the material can fully contact the hot air.

[0016] S3. Air circulation: Humid and hot air enters the circulation pipe through the filter cover. The exhaust gas is dehydrated by the dehydration box. The treated waste hot air and fresh air are sent to the hot air blower through the Y-shaped pipe.

[0017] S4. Unloading and cleaning: After drying, remove the material and use a pulse air pump to deliver reverse airflow to the dust filter bag to flush out and clean the impurities inside the dust filter bag.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. The present invention has a reasonable structural design. The bracket can move to the bottom of the drying box with the guide block. After the electric push rod is started, the material box is connected with the drying box. Hot air is delivered to the air duct by the hot air blower. The material is lifted by the angle steel and falls down, so that it can come into contact with the hot air to dry.

[0020] 2. In this invention, the hollow tube rotates and its relative position to the contact block changes. The position of the end of the rectangular rod changes with the contour of the contact block. The toothed drive pinion is used to drive the blades to rotate, so that the material can fully contact the hot air and further improve the drying effect.

[0021] 3. This invention uses a dust filter bag to filter impurities from the exhaust gas and a dehydration box to dehydrate the exhaust gas. The dehydrated gas and the outside air are simultaneously sent into the hot air blower through a Y-shaped pipe, which can reduce heat loss and achieve the effect of air recycling. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a stannous sulfate air-circulating drying device according to the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the drying oven in this invention;

[0024] Figure 3 This is a cross-sectional schematic diagram of the drying oven in this invention;

[0025] Figure 4 This is a schematic diagram of the support rod in this invention;

[0026] Figure 5 This is a schematic diagram of the internal structure of the dehydration tank in this invention;

[0027] Figure 6 This is a schematic diagram of the abutment block in this invention.

[0028] In the diagram: 1-base, 101-guide groove, 102-guide screw, 103-drive motor, 104-guide block, 105-bracket, 106-electric push rod, 107-moving wheel;

[0029] 2-Erect frame;

[0030] 3-Drying oven, 301-Hollow tube, 302-Bevel gear ring, 303-Steering motor, 304-Bevel gear, 305-Support rod, 306-Angle steel, 307-Ventilation hole, 308-Fixing rod, 309-Abutting block, 310-Transmission cavity, 311-Rectangular rod, 312-Retaining ring, 313-Tension spring, 314-Gear groove, 315-Driven shaft, 316-Blade, 317-Pinal gear, 318-Sealed bearing I, 319-Sealed bearing II;

[0031] 4-Material box;

[0032] 5-Filter cover, 501-Perforated plate, 502-Dust filter bag, 503-Pulse air pump;

[0033] 6-Dehydration tank, 601-Fixing frame, 602-Sponge layer, 603-Activated carbon layer;

[0034] 7-Circulation pipe, 8-Hot air blower, 9-Y-type pipe, 10-Dustproof net, 11-Air duct, 12-PLC controller. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Example 1:

[0036] like Figures 1-3 As shown, the system includes a base 1, a support frame 2 on the base 1, and a drying chamber 3 mounted on the support frame 2. The drying chamber 3 has openings at both the top and bottom. The top opening of the drying chamber 3 is connected to a filter cover 5, and the bottom opening of the drying chamber 3 is connected to a horizontally movable material box 4. The material box 4 is used to hold stannous sulfate to be dried. The bottom of the material box 4 is equipped with a moving mechanism for moving the material box 4. The base 1 is equipped with a guide mechanism that cooperates with the moving mechanism. The base 1 also has a hot air blower 8 and a dehydration tank 6. A circulation pipe 7 connects the dehydration tank 6 and the filter cover 5. A solenoid valve is installed in the circulation pipe 7. The air inlet of the hot air blower 8 is connected to a Y-shaped pipe 9. A dustproof net 10 is installed at one end of the Y-shaped pipe 9, and the other end of the Y-shaped pipe 9 is connected to the dehydration tank 6. The air outlet of the hot air blower 8 is connected to one end of a ventilation pipe 11, and the other end of the ventilation pipe 11 leads into the drying chamber 3. A PLC controller 12 is connected to the outer wall of the base 1.

[0037] The moving mechanism includes a bracket 105 with moving wheels 107 mounted on a base 1. The moving wheels 107 are placed on the upper surface of the base 1. An electric push rod 106 is vertically mounted on the bracket 105. The moving rod of the electric push rod 106 is connected to the bottom of the material box 4 and is used to adjust the docking of the material box 4 and the drying oven 3 vertically. The guiding mechanism includes a guide groove 101 mounted on the upper surface of the base 1. The width of the guide groove 101 is smaller than the width between the moving wheels 107. A guide screw 102 is horizontally mounted in the guide groove 101. One end of the guide screw 102 is connected to a drive motor 103, and the other end of the guide screw 102 is rotatably connected to the side wall of the guide groove 101. A guide block 104 that can move along the guide screw 102 is mounted on the guide screw 102. The top of the guide block 104 is connected to the bracket 105, thereby driving the bracket 105 to move along the guide screw 102, realizing the horizontal movement of the material box 4.

[0038] The drying chamber 3 is rotatably equipped with a hollow tube 301 facing forward and backward. The front end of the hollow tube 301 extends out of the front side wall of the drying chamber 3 and is rotatably connected to the air duct 11 by a sealed bearing I 318, so that the air duct 11 can transmit hot air to the hollow tube 301. A fixing rod 308 is provided at the rear of the hollow tube 301. The rear end of the fixing rod 308 is fixedly connected to the rear wall of the drying chamber 3. The front end of the fixing rod 308 extends into the hollow tube 301 from the rear end of the hollow tube 301 and is rotatably connected to the rear end of the hollow tube 301 by a sealed bearing II 319.

[0039] A bevel gear ring 302 is fitted onto the outer wall of the front end of the hollow tube 301. A bevel gear 304 meshes on the bevel gear ring 302. The bevel gear 304 is driven to rotate by a steering motor 303. The steering motor 303 is fixedly connected to the outer wall of the drying oven 3. After the steering motor 303 is started, the bevel gear 304 drives the bevel gear ring 302 to rotate, thereby causing the hollow tube 301 to rotate.

[0040] The hollow tube 301 located inside the drying oven 3 is circumferentially connected to three support rods 305. An angle steel 306 is connected to the outer end of the support rods 305. The tube wall of the hollow tube 301 is provided with multiple vent holes 307, and a filter screen is connected inside the vent holes 307.

[0041] A perforated plate 501 is connected to the bottom of the inner cavity of the filter cover 5. A dust filter bag 502 is installed in the holes of the perforated plate 501. A pulse air pump 503 is installed at the top of the filter cover 5.

[0042] like Figure 5 As shown, a fixing frame 601 is inserted into the dehydration tank 6. The upper and lower sides of the inner wall of the fixing frame 601 are respectively connected to a sponge layer and an activated carbon layer. The fixing frame 601 is located between the Y-shaped tube 9 and the circulation tube 7.

[0043] A method of using a stannous sulfate air-circulating drying device includes the following steps:

[0044] S1. Material loading: Place the stannous sulfate to be processed into the material box 4. After the drive motor 103 starts, the guide block 104 drives the bracket 105 to move to the bottom of the drying box 3. After the electric push rod 106 starts, the material box 4 and the drying box 3 are connected.

[0045] S2. Ventilation and drying: After the hot air blower 8 is started, hot air enters the drying chamber 3 along the air duct 11. After the steering motor 303 is started, the bevel gear 304 meshes with the bevel gear ring 302, and the hollow tube 301 drives the support rod 305 to rotate, so that the material can fully contact the hot air.

[0046] S3. Air circulation: Humid and hot air enters the circulation pipe 7 through the filter cover 5. The exhaust gas is dehydrated by the dehydration box 6. The treated waste heat air and fresh air are sent to the hot air blower 8 through the Y-shaped pipe 9.

[0047] S4. Unloading and cleaning: After drying, remove the material and use the pulse air pump 503 to deliver reverse airflow to the dust filter bag 502 to flush out and clean the impurities inside the dust filter bag 502. Example 2:

[0048] like Figure 4 and Figure 6 As shown, based on Embodiment 1, a stop block 309 is sleeved at the front end of the fixing rod 308, and the outer wall of the stop block 309 has an annular wave structure; a transmission cavity 310 is provided in the support rod 305 along its length direction, and a rectangular rod 311 is provided in the transmission cavity 310. The inner end of the rectangular rod 311 extends from the transmission cavity 310 into the hollow tube 301 and can movably abut against the outer wall of the stop block 309. The outer wall of the rectangular rod 311 located in the transmission cavity 310... A retaining ring 312 is connected, and a tension spring 313 is connected between the retaining ring 312 and the inner wall of the transmission cavity 310 located at the inner end. A toothed groove 314 is opened at the outer end of the rectangular rod 311, and a pinion 317 meshes on the toothed groove 314. The pinion 317 is sleeved on the driven shaft 315. The driven shaft 315 is set perpendicular to the rectangular rod 311. Both ends of the driven shaft 315 extend out of the side wall of the support rod 305, and multiple blades 316 are connected to its extended parts.

[0049] The specific implementation method of this embodiment is as follows:

[0050] In this embodiment, when the steering motor 303 starts, the bevel gear 304 meshes with the bevel gear ring 302, and the hollow tube 301 rotates accordingly, changing its relative position with the abutment block 309. Utilizing the elastic reset effect of the tension spring 313, the end position of the rectangular rod 311 changes with the contour of the abutment block 309. When the rectangular rod 311 moves, the tooth groove 314 meshes with the small gear 317, and the driven shaft 315 can drive the blades 316 to rotate, allowing the material to fully contact the hot air and further improving the drying effect.

[0051] Working principle:

[0052] Stannous sulfate is placed in material box 4. Driven by motor 103, guide screw 102 rotates, guide block 104 moves laterally along guide groove 101, and bracket 105 moves to the bottom of drying chamber 3. After electric push rod 106 is activated, material box 4 and drying chamber 3 are connected. Hot air is supplied to air duct 11 by hot air blower 8 and discharged through vent 307 of hollow tube 301. After steering motor 303 is activated, bevel gear 304 meshes with bevel gear ring 302, hollow tube 301 drives support rod 305 to rotate, and angle steel 306 lifts the material. The material is then lifted by its own weight. The material falls under the action of hot air and dries upon contact. During the rotation of the hollow tube 301, the end of the rectangular rod 311 contacts the abutment block 309. The toothed groove 314 meshes with the transmission pinion 317, and the driven shaft 315 drives the blades 316 to rotate, thereby breaking up the material and allowing it to fully contact the hot air, further improving the drying effect. The dust filter bag 502 filters impurities from the exhaust gas. The filtered gas enters the dehydration box 6 along the circulation pipe 7 for dehydration. The dehydrated gas and the outside air are sent to the hot air blower 8 through the two ports of the Y-shaped pipe 9, which can reduce heat loss and achieve the effect of air recycling.

[0053] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "upper," "lower," "left," "right," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "connected" and "linked" should be interpreted broadly. For example, it can refer to a fixed connection; a detachable connection; a point connection; a direct connection; or an indirect connection through an intermediate medium, which can enable communication between the internal parts of two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Device connection methods not described in detail in this invention are understood according to conventional connection methods in the art.

[0054] The above embodiments are merely specific examples to further illustrate the purpose, technical solution, and beneficial effects of the present invention, and the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc., made within the scope of the disclosure of the present invention are included within the protection scope of the present invention.

Claims

1. A method of using a tin (II) sulfate air-circulating drying device comprising a base, characterized by: The base is provided with a stand, the stand is provided with a drying box, the drying box is open at both ends, the top opening of the drying box is connected with a filter cover, the bottom opening of the drying box is connected with a horizontally movable material box, the bottom of the material box is provided with a moving mechanism for moving the material box, the base is provided with a guide mechanism matched with the moving mechanism; the base is also provided with a hot air blower and a dehydration tank, a circulation pipe is communicated between the dehydration tank and the filter cover, and an electromagnetic valve is arranged in the circulation pipe; the air inlet end of the hot air blower is communicated with a Y-shaped pipe, one end of the Y-shaped pipe is provided with a dust screen, the other end of the Y-shaped pipe is communicated with the dehydration tank, and the air outlet end of the hot air blower is communicated with one end of an air pipe; the other end of the air pipe is communicated with the drying box; The method comprises the following steps: S1, material loading, the stannous sulfate to be treated is placed in the material box, the guide block drives the bracket to move to the lower side of the drying box after the driving motor is started, and the material box is connected with the drying box after the electric push rod is started; S2, ventilation and drying, hot air enters the drying box through the air pipe after the hot air blower is started, the bevel gear is engaged with the bevel gear ring after the steering motor is started, the hollow pipe drives the supporting rod to rotate, so that the material is fully contacted with the hot air; S3, air circulation, the wet hot air enters the circulation pipe through the filter cover, the exhaust gas is treated by the dehydration tank, and the waste heat air and the fresh air are simultaneously sent to the hot air blower through the Y-shaped pipe; S4, unloading and cleaning, the material is taken out after drying, the reverse airflow is sent to the dust filter bag by using the pulse air pump, and the impurities in the dust filter bag are flushed out for cleaning; The moving mechanism comprises a bracket provided with moving wheels on the base, an electric push rod is vertically arranged on the bracket, and the moving rod of the electric push rod is connected with the bottom of the material box; the guide mechanism comprises a guide groove arranged on the upper surface of the base, a guide screw is transversely arranged in the guide groove, one end of the guide screw is connected with a driving motor, and the other end of the guide screw is rotatably connected with the side wall of the guide groove; a guide block movably arranged on the guide screw is arranged on the guide screw, the top of the guide block is connected with the bracket, so that the bracket is driven to move along the guide rod; The hollow pipe is rotatably arranged in the drying box and faces forward and backward, the front end of the hollow pipe extends out of the front wall of the drying box and is rotatably connected with the air pipe by a sealing bearing I; a fixed rod is arranged at the rear of the hollow pipe, the rear end of the fixed rod is fixedly connected with the rear wall of the drying box, and the front end of the fixed rod extends into the hollow pipe from the rear end of the hollow pipe and is rotatably connected with the rear end of the hollow pipe by a sealing bearing II; The front end of the hollow pipe is provided with a bevel gear ring, the bevel gear ring is engaged with a bevel gear, the bevel gear is driven to rotate by a steering motor, and the steering motor is fixedly connected with the outer wall of the drying box; The outer wall of the hollow pipe in the drying box is circumferentially connected with three supporting rods, the outer end of the supporting rod is connected with an angle steel, a plurality of air holes are arranged in the wall of the hollow pipe, and a filter screen is arranged in the air hole; The front end of the fixed rod is sleeved with an abutting block, and the outer side wall of the abutting block is in a ring-shaped wave structure; a transmission cavity is arranged in the length direction of the support rod, a rectangular rod is arranged in the transmission cavity, the inner end of the rectangular rod extends into the hollow tube from the transmission cavity and movably abuts against the outer side wall of the abutting block, the outer wall of the rectangular rod in the transmission cavity is connected with a blocking ring, a tension spring is connected between the blocking ring and the inner wall of the transmission cavity at the inner end, a gear slot is formed in the outer end of the rectangular rod, a pinion is engaged on the gear slot, the pinion is sleeved on a driven shaft, the driven shaft is perpendicular to the rectangular rod, and the two ends of the driven shaft respectively extend out of the side wall of the support rod, and a plurality of blades are connected to the extending parts.

2. A method of using a stannous sulfate air-circulating drying device according to claim 1, wherein: The inner cavity bottom of the filter cover is connected with a porous plate, a dust filter cloth bag is mounted in the hole of the porous plate, and a pulse air pump is mounted on the upper end of the filter cover.

3. A method of using a stannous sulfate air-circulating drying device according to claim 1, wherein: The dehydrating box is inserted with a fixed frame, sponge layers and activated carbon layers are respectively connected to the upper and lower sides of the inner wall of the fixed frame, and the fixed frame is located between the Y-shaped pipe and the circulating pipe.

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