Spray drying equipment

Abstract

The utility model discloses spray drying equipment which comprises a drying tank, a stirring part and a drying part, the stirring part is arranged in the drying tank and provided with a rotating shaft rotationally arranged in the drying tank, a stirring shaft is transversely arranged on the side face of the rotating shaft, a conveying channel is formed in the rotating shaft, and the drying part is arranged in the conveying channel. An air outlet is formed in the side face of the stirring shaft, the conveying channel is communicated with the air outlet, the drying part is arranged on the side face of the drying tank and provided with a drying machine arranged on the side face of the drying tank, a draught fan is arranged at the top of the drying machine, a connecting hose is arranged at the top of the draught fan, and the other end of the connecting hose is connected with the top of the rotating shaft. The stirring part and the drying part are arranged, hot air generated by the drying machine can be evenly dispersed into the drying tank through the conveying channel in the rotating shaft and the air outlet holes in the side face of the stirring shaft, the drying efficiency is improved, meanwhile, the rotating stirring effect of the stirring shaft can prevent materials from caking, and the drying uniformity is ensured.

Description

Technical Field

[0001] This utility model relates to the field of laundry detergent production technology, specifically to a spray drying device. Background Technology

[0002] Spray drying equipment is an industrial device used to rapidly dry liquid or slurry materials into powder. In the entire production process of laundry detergent, there is a spray drying process, in which a raw material solution formed by mixing various laundry detergent ingredients is sprayed into a spray drying tower. This raw material solution, sprayed into the tower, completes the drying process in a very short time, resulting in solid powdered laundry detergent.

[0003] Existing spray dryers typically use single-point or fixed-angle air inlets for hot air, resulting in uneven distribution of hot air within the drying tower. Areas near the hot air inlet have excessively high temperatures, while areas far from the inlet have low hot air velocity, affecting the drying efficiency of laundry detergent. Utility Model Content

[0004] The purpose of this invention is to provide a spray drying device to solve the problem mentioned in the background art, which is that the hot air inlet of the existing spray dryer usually adopts a single point or fixed angle air inlet, resulting in uneven distribution of hot air in the drying tower, excessively high temperature in the area near the hot air inlet, and low hot air velocity in the area far from the hot air inlet, which affects the drying efficiency of laundry detergent.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a spray drying device, comprising a drying tank, a stirring section, and a drying section:

[0006] The stirring unit is located inside the drying tank. The stirring unit has a rotating shaft rotatably installed inside the drying tank. A stirring shaft is laterally arranged on the side of the rotating shaft. A conveying channel is opened inside the rotating shaft. An air outlet is opened on the side of the stirring shaft. The conveying channel and the air outlet are interconnected. The drying unit is located on the side of the drying tank. The drying unit has a dryer installed on the side of the drying tank. A fan is installed on the top of the dryer. A connecting hose is installed on the top of the fan. The other end of the connecting hose is connected to the top of the rotating shaft. The connecting hose is connected to the conveying channel to transport hot air into the conveying channel.

[0007] By adopting the above technical solution, the hot air generated by the dryer can be evenly distributed into the drying tank through the conveying channel inside the rotating shaft and the air outlet on the side of the stirring shaft, thereby improving the drying efficiency. At the same time, the rotating stirring action of the stirring shaft can prevent the material from clumping and ensure the uniformity of drying.

[0008] Preferably, the drying tank has an inlet at the top and an outlet at the bottom, with a screw conveyor installed at the bottom of the outlet.

[0009] By adopting the above technical solution, the material to be dried can be conveniently added through the inlet, and the dried material can be continuously and controllably discharged through the outlet and screw conveyor.

[0010] Preferably, the drying tank also has a rotating groove a opened at the top of the drying tank, and the interior of the rotating groove a is provided with conical teeth a.

[0011] By adopting the above technical solution, the stable rotation of the rotating shaft can be achieved through the cooperation of the rotating groove a and the bevel tooth a.

[0012] Preferably, the stirring unit also has a support frame disposed on the top of the drying tank, and a bevel tooth b is rotatably disposed on the side of the support frame, the bevel tooth b being meshed with the bevel tooth a, and a motor is disposed on the side of the support frame, the output end of the motor being connected to the bevel tooth b.

[0013] By adopting the above technical solution, the bevel gear b can be driven to rotate by the motor, which in turn drives the bevel gear a and the rotating shaft to rotate, thereby achieving stable stirring of the stirring shaft.

[0014] Preferably, the stirring part also has a vertical groove formed on the top of the conical tooth a, and a limiting block is provided on the side of the rotating shaft. The limiting block is embedded in the vertical groove and is vertically slidably connected to the conical tooth a.

[0015] By adopting the above technical solution, the rotating shaft can have a certain degree of freedom to slide up and down while rotating, thanks to the combination of the limiting block and the vertical slide groove.

[0016] Preferably, the stirring part also has a rotating ring rotatably disposed at the top of the rotating shaft, a horizontal shaft is horizontally disposed on the side of the rotating ring, and a rotating groove b is opened on the side of the conical tooth b, the horizontal shaft is embedded in the rotating groove b and rotatably connected to the conical tooth b.

[0017] By adopting the above technical solution, the power transmission between the bevel tooth b and the rotating shaft can be achieved through the cooperation of the rotating ring, the horizontal shaft and the rotating groove b, so that the bevel tooth b can drive the rotating shaft to move up and down reciprocally when rotating.

[0018] Preferably, the side of the stirring shaft is provided with an inclined plate.

[0019] By adopting the above technical solution, the tilting design of the inclined plate can enhance the tumbling effect of the stirring shaft on the materials.

[0020] Compared with the prior art, the beneficial effects of this utility model are: by setting up a stirring section and a drying section, the hot air generated by the dryer can be evenly dispersed into the drying tank through the conveying channel inside the rotating shaft and the air outlet on the side of the stirring shaft, thereby improving the drying efficiency. At the same time, the rotating stirring action of the stirring shaft can prevent the material from clumping and ensure the uniformity of drying. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this application;

[0022] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this application;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the drying tank in this application;

[0024] Figure 4 This is a schematic diagram of the cross-sectional structure of the rotating shaft in this application;

[0025] Figure 5 This is a schematic diagram of the exploded structure of the stirring part in this application.

[0026] In the diagram: 1. Drying tank; 101. Inlet; 102. Outlet; 103. Screw conveyor; 104. Rotating trough a; 2. Stirring section; 201. Conical tooth a; 202. Vertical chute; 203. Support frame; 204. Conical tooth b; 205. Rotating trough b; 206. Motor; 207. Rotating shaft; 208. Stirring shaft; 209. Conveying channel; 210. Air outlet; 211. Limiting block; 212. Rotating ring; 213. Horizontal shaft; 3. Drying section; 301. Dryer; 302. Fan; 303. Connecting hose. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] Please see Figure 1 , Figure 2 and Figure 3 This embodiment provides a technical solution: a spray drying device, including a drying tank 1, a stirring section 2, and a drying section 3.

[0030] The drying tank 1 has a feed inlet 101 at the top and a discharge outlet 102 at the bottom. A screw conveyor 103 is installed at the bottom of the discharge outlet 102. A sensor for monitoring the temperature inside the tank is installed on the inner wall of the drying tank 1. The material to be dried can be conveniently added through the feed inlet 101, and the dried material can be continuously and controllably discharged through the discharge outlet 102 and the screw conveyor 103.

[0031] A stirring section 2 is disposed inside the drying tank 1. The stirring section 2 has a rotating shaft 207 rotatably disposed inside the drying tank 1. A stirring shaft 208 is transversely disposed on the side of the rotating shaft 207. A conveying channel 209 is opened inside the rotating shaft 207. An air outlet 210 is opened on the side of the stirring shaft 208. The conveying channel 209 and the air outlet 210 are interconnected. A drying section 3 is disposed on the side of the drying tank 1. The drying section 3 has a dryer 301 disposed on the side of the drying tank 1. A fan 302 is disposed on the top of the dryer 301. A connecting hose 303 is disposed on the top of the fan 302. The other end of the connecting hose 303 is connected to... The top of the rotating shaft 207 is connected to a connecting hose 303, which is connected to the conveying channel 209 to deliver hot air into the conveying channel 209. The connecting hose 303 is connected to the top of the rotating shaft 207 by a rotating flange to ensure that the connecting hose 303 can deliver hot air into the conveying channel 209 when the rotating shaft 207 rotates. The hot air generated by the dryer 301 can be evenly dispersed into the drying tank 1 through the conveying channel 209 inside the rotating shaft 207 and the air outlet 210 on the side of the stirring shaft 208, thereby improving the drying efficiency. At the same time, the rotating stirring action of the stirring shaft 208 can prevent the material from clumping and ensure the uniformity of drying.

[0032] Example 2

[0033] Please see Figure 3 , Figure 4 and Figure 5 This embodiment provides a technical solution: a spray drying device, including a stirring section 2, a conical tooth a201, and a stirring shaft 208.

[0034] A rotating groove a104 is provided on the top of the drying tank 1. A bevel tooth a201 is provided inside the rotating groove a104. The rotating shaft 207 can be stably rotated through the cooperation of the rotating groove a104 and the bevel tooth a201.

[0035] A support frame 203 is fixedly installed on the top of the drying tank 1. This fixing method is a conventional detachable fixing, such as bolt connection or snap-fit ​​connection. A bevel gear b204 is rotatably mounted on the side of the support frame 203, meshing with a bevel gear a201. A motor 206 is also mounted on the side of the support frame 203, with its output end connected to the bevel gear b204. Specifically, the motor 206 is a servo motor. The working principle of the servo motor is mainly based on a closed-loop control system. Its core is to precisely control the position, speed, and acceleration of an object. Taking pulse control as an example, after receiving a pulse signal, the servo motor will rotate by an angle corresponding to the pulse, thereby achieving displacement. Simultaneously, the encoder inside the motor will emit a corresponding number of pulses as feedback, forming a closed loop with the pulses sent by the control circuit. The control circuit continuously adjusts the operation of the motor according to these pulse signals until it reaches and maintains the set position or speed. The above is the prior art and will not be repeated below. When selecting a model, its power should be selected to match the needs of the device to ensure that the object to be driven is driven. The motor 206 can drive the bevel gear b204 to rotate, thereby driving the bevel gear a201 and the rotating shaft 207 to rotate, so as to achieve stable stirring of the stirring shaft 208.

[0036] A vertical slide groove 202 is provided at the top of the bevel tooth a201, and a limit block 211 is provided on the side of the rotating shaft 207. The limit block 211 is embedded in the vertical slide groove 202 and is vertically slidably connected to the bevel tooth a201. The rotating shaft 207 can have a certain degree of freedom to slide up and down while rotating through the cooperation of the limit block 211 and the vertical slide groove 202.

[0037] A rotating ring 212 is rotatably mounted on the top of the rotating shaft 207. A horizontal shaft 213 is horizontally mounted on the side of the rotating ring 212. A rotating groove b205 is opened on the side of the bevel tooth b204. The horizontal shaft 213 is embedded in the rotating groove b205 and rotatably connected to the bevel tooth b204. The power transmission between the bevel tooth b204 and the rotating shaft 207 can be realized through the cooperation of the rotating ring 212, the horizontal shaft 213 and the rotating groove b205, so that the bevel tooth b204 can drive the rotating shaft 207 to move up and down reciprocally when rotating.

[0038] The side of the stirring shaft 208 is inclined with a ramp, which enhances the stirring effect of the stirring shaft 208 on the material.

[0039] Working principle: First, the laundry detergent to be dried is added into the drying tank 1 through the feed port 101 at the top of the drying tank 1. Then, the motor 206 is started. Since the output end of the motor 206 is connected to the bevel gear b204, the motor 206 drives the bevel gear b204 to rotate. Because the bevel gear b204 is meshed with the bevel gear a201, the rotation of the bevel gear b204 drives the bevel gear a201 to rotate in the rotating groove a104. The rotating shaft 207 is embedded in the vertical sliding groove 202 at the top of the bevel gear a201 through the limiting block 211. Therefore, the rotation of the bevel gear a201 drives the rotating shaft 207 to rotate. At the same time, the horizontal shaft 213 on the side of the rotating ring 212 at the top of the rotating shaft 207 is embedded in the rotating groove b205 on the side of the bevel gear b204, so that the rotation of the bevel gear b204 can drive the rotating shaft 207 to move up and down reciprocally. The rotation and up and down movement of the rotating shaft 207 drive the stirring. The shaft 208 stirs the material in the drying tank 1. The inclined plate on the side of the stirring shaft 208 further enhances the turning effect of the material, prevents the material from clumping, and ensures that the material is mixed evenly. At the same time, the dryer 301 and the fan 302 of the drying section 3 are started. The dryer 301 generates hot air, and the fan 302 delivers the hot air to the conveyor 209 inside the rotating shaft 207 through the connecting hose 303. The hot air is then evenly dispersed into the drying tank 1 from the air outlet 210 on the side of the stirring shaft 208 to dry the material. The sensor installed on the inner wall of the drying tank 1 monitors the temperature inside the tank in real time so as to adjust the power of the dryer 301 as needed to ensure that the drying process is carried out at a suitable temperature. After the laundry detergent is dried, the screw discharge machine 103 at the bottom of the discharge port 102 is opened to realize the continuous and controllable discharge of the dried laundry detergent, thus completing the entire spray drying process.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spray drying device, characterized in that, include: Drying jar; The stirring part is located inside the drying tank. The stirring part has a rotating shaft that is rotatably installed inside the drying tank. A stirring shaft is arranged laterally on the side of the rotating shaft. A conveying channel is opened inside the rotating shaft. An air outlet is opened on the side of the stirring shaft. The conveying channel and the air outlet are connected to each other. The drying section is located on the side of the drying tank. The drying section has a dryer located on the side of the drying tank. A fan is located on the top of the dryer. A connecting hose is located on the top of the fan. The other end of the connecting hose is connected to the top of the rotating shaft. The connecting hose is connected to the conveying channel to convey hot air into the conveying channel.

2. The spray drying equipment according to claim 1, characterized in that: The drying tank has an inlet at the top and an outlet at the bottom, with a screw conveyor installed at the bottom of the outlet.

3. The spray drying equipment according to claim 1, characterized in that: The drying tank also has a rotating groove a opened at the top of the drying tank, and the interior of the rotating groove a is provided with conical teeth a.

4. The spray drying equipment according to claim 3, characterized in that: The stirring unit also has a support frame installed on the top of the drying tank. A bevel tooth b is rotatably provided on the side of the support frame. The bevel tooth b meshes with the bevel tooth a. A motor is installed on the side of the support frame, and the output end of the motor is connected to the bevel tooth b.

5. The spray drying equipment according to claim 3, characterized in that: The stirring part also has a vertical groove opened at the top of the conical tooth a, and a limiting block is provided on the side of the rotating shaft. The limiting block is embedded in the vertical groove and is vertically slidably connected to the conical tooth a.

6. The spray drying equipment according to claim 4, characterized in that: The stirring part also has a rotating ring rotatably mounted on the top of the rotating shaft. A horizontal shaft is horizontally arranged on the side of the rotating ring. A rotating groove b is opened on the side of the conical tooth b. The horizontal shaft is embedded in the rotating groove b and rotatably connected to the conical tooth b.

7. The spray drying equipment according to claim 1, characterized in that: The side of the stirring shaft is inclined with a sloping plate.

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