Powder detergent spray drying mechanism

Abstract

The utility model relates to spray drier related technical field especially, and more particularly to a kind of powder detergent spray drying mechanism, including drying cylinder, annular pipe is fixedly installed on the inner ring upper surface of drying cylinder, the side of annular pipe is equally spaced and has jet port, the upper surface of annular pipe is fixedly connected with air inlet pipe, three-way pipe is fixedly installed at the air inlet of the lower portion of heater, the side opening of three-way pipe is fixedly connected with air inlet fan, the upper surface of drying cylinder is fixedly perforated with feed pipe.This powder detergent spray drying mechanism, by annular pipe installation corresponding jet port, make jet port while spraying high-temperature gas, blow fan blade, drive atomizer to rotate, atomizer in the process of rotation, further disperse material, and jet port is inclined downward, can form helical wind power in drying cylinder inner ring, can bring material to rotate descending along drying cylinder inner ring, increase contact time, make drying more fully.

Description

Technical Field

[0001] This utility model relates to the technical field of spray dryers, and in particular to a spray drying mechanism for powder detergents. Background Technology

[0002] A spray dryer is a device that can simultaneously perform drying and granulation. It belongs to the category of direct, continuous hot air drying equipment. In the production process of powder detergents, it is necessary to quickly convert slurry containing a large amount of water into dry powder. The spray dryer can complete this process in a short time. After the slurry is atomized into tiny droplets, it comes into full contact with hot air, and the water evaporates rapidly, completing the drying process quickly and greatly improving production efficiency. The spray dryer can atomize the slurry into droplets of uniform size. The particles formed after drying are also relatively uniform in size. Uniform particles enable the powder detergent to perform well in dissolution, flow, and use, ensuring stable product quality. Therefore, a spray drying mechanism for powder detergents is needed.

[0003] In existing powder detergent spray drying mechanisms, the atomizer sprays downwards in a straight line, which is accelerated downwards by the airflow. This results in less contact time between the materials, which means that some materials cannot be dried quickly enough and will clump together.

[0004] To address the aforementioned issues, a search revealed a patent with publication number CN220404843U that discloses a spray dryer. The patent states that "this spray dryer uses a motor to drive a rotating shaft, causing the fan blades to disperse the water source from the nozzle, resulting in a uniform distribution of the water on the inner wall of the dryer's main frame. Combined with the rotating scraper's scraping function, it cleans and removes material particles adhering to the inner wall of the dryer's main frame, improving the subsequent drying effect of the dryer's main frame." While the rotating fan blades can disperse the water source, the dispersion effect is poor, resulting in uneven diffusion.

[0005] In light of this, in-depth research into the aforementioned issues led to the creation of this case. Utility Model Content

[0006] The purpose of this invention is to provide a powder detergent spray drying mechanism to solve the problem mentioned in the background art that, in use, the atomizer sprays downwards in a straight line, and with the blowing of the air inlet, it accelerates downwards, resulting in less contact time between the materials. This causes some materials to fail to dry quickly and clump together in a short time.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a powder detergent spray drying mechanism, comprising a drying cylinder, an annular tube fixedly installed on the upper surface of the inner ring of the drying cylinder, air jets evenly distributed on one side of the annular tube, an air inlet pipe fixedly connected to the upper surface of the annular tube, a three-way pipe fixedly installed at the lower air inlet of the heater, a blower fixedly connected to the opening on one side of the three-way pipe, a feed pipe fixedly through the upper surface of the drying cylinder, a connecting ring fixedly fitted on the outer ring of one end of the feed pipe, an I-shaped ring fixedly installed on the inner ring of one end of the connecting ring, a U-shaped ring movably connected to the inner ring of the I-shaped ring, a connecting pipe fixedly connected to the inner ring of the U-shaped ring, an atomizer fixedly connected to one end of the connecting pipe, an outer ring fixedly fitted on the outer ring of the connecting pipe, and fan blades fixedly installed at equal intervals on the outer ring of the outer ring.

[0008] Preferably, a cyclone separator is connected to the outlet of the drying cylinder via a pipe, a receiving cylinder is fixedly installed at the lower outlet of the cyclone separator, a bag filter is connected to the upper outlet of the cyclone separator via a pipe, and a centrifugal fan is connected to the lower outlet of the bag filter via a pipe.

[0009] Preferably, a return air pipe is fixedly installed at one end of the air outlet of the centrifugal fan, and one end of the return air pipe is fixedly connected to the lower end of the tee pipe.

[0010] Preferably, one end of the air inlet pipe passes through the drying cylinder and is fixedly connected to the air outlet above the heater, and the heater is an electric heating device with an electric heating tube structure.

[0011] Preferably, a dust removal filter cartridge is fixedly connected to the air inlet at one end of the air inlet fan, and the dust removal filter cartridge has a multi-layer filter structure inside.

[0012] Preferably, the other end of the feed pipe is used to connect a feed pump and a container for storing liquid materials, and the atomizer is a pressure atomizing sprayer.

[0013] Preferably, one end of the feed pipe is fitted into the connecting pipe, and a sealing ring is provided at the connection. The position of the fan blade corresponds to the outlet position of the air jet, and the air jet is inclined.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The powder detergent spray drying mechanism is equipped with corresponding air nozzles through annular pipes, so that while the air nozzles spray high-temperature gas, they can also blow the fan blades and drive the atomizer to rotate. During the rotation of the atomizer, the material is further dispersed. Moreover, the air nozzles are inclined downwards, which can form a spiral wind force in the inner circle of the drying cylinder, which can drive the material to rotate and fall along the inner circle of the drying cylinder, increasing the contact time and making the drying more thorough. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the external structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the interaction between the heat recovery tube and the heater of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the feed pipe and atomizer working together in this utility model;

[0018] Figure 4 This is a schematic diagram of the interlocking structure of the I-shaped ring and the U-shaped ring of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure in which the outer ring and the fan blades of this utility model cooperate with each other.

[0020] In the diagram: 1. Drying cylinder; 2. Cyclone separator; 3. Material receiving cylinder; 4. Bag filter; 5. Centrifugal fan; 6. Return air duct; 7. Annular pipe; 8. Air nozzle; 9. Inlet air duct; 10. Heater; 11. T-joint; 12. Inlet fan; 13. Dust collector filter cartridge; 14. Feed pipe; 15. Connecting ring; 16. I-shaped ring; 17. U-shaped ring; 18. Connecting pipe; 19. Atomizer; 20. Outer ring; 21. Fan blade. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5This utility model provides a technical solution: a powder detergent spray drying mechanism, including a drying cylinder 1, an annular pipe 7 fixedly installed on the upper surface of the inner ring of the drying cylinder 1, air jets 8 evenly distributed on one side of the annular pipe 7, an air inlet pipe 9 fixedly connected to the upper surface of the annular pipe 7, a three-way pipe 11 fixedly installed at the lower air inlet of the heater 10, an air blower 12 fixedly connected to the opening on one side of the three-way pipe 11, a feed pipe 14 fixedly installed through the upper surface of the drying cylinder 1, a connecting ring 15 fixedly fitted on the outer ring of one end of the feed pipe 14, an I-shaped ring 16 fixedly installed on the inner ring of one end of the connecting ring 15, a U-shaped ring 17 movably connected to the inner ring of the I-shaped ring 16, a connecting pipe 18 fixedly connected to the inner ring of the U-shaped ring 17, an atomizer 19 fixedly connected to one end of the connecting pipe 18, an outer ring 20 fixedly fitted on the outer ring of the connecting pipe 18, and fan blades 21 fixedly installed at equal intervals on the outer ring 20.

[0023] Furthermore, a cyclone separator 2 is connected to the outlet of the drying cylinder 1 via a pipe. A receiving cylinder 3 is fixedly installed at the lower outlet of the cyclone separator 2. A bag filter 4 is connected to the upper outlet of the cyclone separator 2 via a pipe. A centrifugal fan 5 is connected to the lower outlet of the bag filter 4 via a pipe. Through the arrangement of the cyclone separator 2 and the bag filter 4, the cyclone separator 2 mainly utilizes the centrifugal force generated when the gas-solid mixture rotates at high speed to separate the dried material particles from the humid air. The dust-laden airflow enters the cyclone separator 2 through the inlet pipe at a certain speed. After collision and deflection by the cyclone sub-branch pipes, the airflow is evenly distributed and flows towards the cyclone sub-inlet. The evenly distributed airflow enters the cyclone tangentially, forming a cyclone airflow in the cyclone tube. The strong centrifugal force causes solid and liquid particles in the gas to be thrown out and gather on the inner wall of the cyclone tube, eventually falling into the collection cylinder 3. The airflow continues to rise to the exhaust chamber and flows out from the exhaust port. The bag dust collector 4 is a dry high-efficiency dust collector that uses bag filter elements made of woven fiber to capture solid particles in dusty gas. When dusty gas enters the bag dust collector 4, large and heavy dust particles settle down due to gravity and fall into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is trapped, thus purifying the gas.

[0024] Furthermore, a return air duct 6 is fixedly installed at one end of the outlet of the centrifugal fan 5. One end of the return air duct 6 is fixedly connected to the lower end of the three-way pipe 11. Through the setting of the return air duct 6, the centrifugal fan 5 can guide the air below the bag filter 4, and send the warm air back into the return air duct 6. Then, the air is sent to the heater 10 for reheating, so as to recover and reuse the heat energy and reduce the energy consumption of the heater 10.

[0025] Furthermore, one end of the air inlet pipe 9 passes through the drying cylinder 1 and is fixedly connected to the air outlet above the heater 10. The heater 10 is an electric heating device with an electric heating tube structure. Through the setting of the heater 10, the heater 10 converts electrical energy into heat energy and heats the air through heat transfer. The hot air enters the drying cylinder 1 and exchanges heat with the mist droplets, causing the moisture in the mist droplets to evaporate, thereby achieving the drying of the material.

[0026] Furthermore, a dust removal filter cartridge 13 is fixedly connected to the air inlet at one end of the air inlet of the air inlet fan 12. The dust removal filter cartridge 13 has a multi-layer filter structure inside. Through the setting of the dust removal filter cartridge 13, the air entering the heater 10 can be filtered in advance, so that the air enters the drying cylinder 1 clean and free of impurities.

[0027] Furthermore, the other end of the feed pipe 14 is used to connect the feed pump and the container for storing liquid materials. The atomizer 19 is a pressure atomizing sprayer. Through the setting of the atomizer 19, the atomizer 19 can atomize the powder detergent entering and leaving the feed pipe 14, so that the powder detergent is evenly dispersed into the drying cylinder 1 and comes into contact with the hot air.

[0028] Furthermore, one end of the feed pipe 14 is fitted with the connecting pipe 18, and a sealing ring is provided at the connection. The position of the fan blade 21 corresponds to the outlet position of the jet nozzle 8, and the jet nozzle 8 is set at an angle. Through the setting of the jet nozzle 8, multiple sets of jet nozzles 8 spray high-temperature air downward at an angle. The airflow will also drive the fan blade 21 to rotate. The fan blade 21 drives the connecting pipe 18 of the inner ring of the outer ring 20 to rotate. The upper end of the connecting pipe 18 can rotate in the inner ring of the I-shaped ring 16 through the U-shaped ring 17. At the same time, the lower end of the connecting pipe 18 will drive the atomizer 19 to rotate. During the rotation of the atomizer 19, the material is sprayed in a rotating diffusion manner. At the same time, the atomized material is also in contact with the hot airflow and is carried by the airflow to descend in a spiral in the drying cylinder 1, which slows down the descent speed, increases the contact time, and makes the drying more thorough.

[0029] Working principle: First, liquid material is drawn from the storage container by the feed pump and transported to the atomizer 19 inside the drying cylinder 1 through the feed pipe 14. After entering the atomizer 19, the material is atomized into tiny droplets. At the same time, the heater 10 heats the air through an electric heating device with an electric heating tube structure. The blower 12 draws in filtered clean air and sends it into the heater 10. The heated air enters the annular pipe 7 fixedly installed on the upper surface of the inner ring of the drying cylinder 1 through the air inlet pipe 9. The annular pipe 7 has air jets 8 evenly distributed on one side, which spray high-temperature gas. This high-temperature gas is used to dry the material on one hand, and blows the fan blades 21 fixedly installed at equal intervals on the outer ring 20 on the other hand. The fan blades 21 drive the connecting pipe 18 of the inner ring of the outer ring 20 to rotate. Since one end of the connecting pipe 18 can rotate within the inner ring of the I-shaped ring 16 through the U-shaped ring 17, and the lower end of the connecting pipe 18 is fixedly connected to... Atomizer 19 rotates, further dispersing the atomized material within the drying cylinder 1. The jet nozzle 8 is angled downwards, creating a spiral wind within the drying cylinder 1, causing the material to rotate and descend along the inner ring, increasing the contact time between the material and hot air. After sufficient contact with the hot air, the moisture evaporates rapidly, achieving material drying. The dried material particles and the humid air mixture enter the cyclone separator 2. The cyclone separator 2 utilizes the centrifugal force generated by the high-speed rotation of the gas-solid mixture to separate the dried material particles from the humid air. The airflow from the cyclone separator 2 enters the bag filter 4. A centrifugal fan 5 is connected to the outlet pipe at the bottom of the bag filter 4. The centrifugal fan 5 sends part of the purified air back to the three-way pipe 11 through the return air pipe 6, and after being heated by the heater 10, it re-enters the drying cylinder 1 for heat recovery.

[0030] 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 powder detergent spray drying mechanism, comprising a drying cylinder (1), characterized in that: An annular pipe (7) is fixedly installed on the upper surface of the inner ring of the drying cylinder (1). Air jets (8) are evenly spaced on one side of the annular pipe (7). An air inlet pipe (9) is fixedly connected to the upper surface of the annular pipe (7). A heater (10) is connected below the air inlet pipe (9). A three-way pipe (11) is fixedly installed at the air inlet below the heater (10). A blower (12) is fixedly connected to the opening on one side of the three-way pipe (11). A feed pipe (14) is fixedly installed through the upper surface of the drying cylinder (1). A connecting ring (15) is fixedly fitted around one end of the tube (14). An I-shaped ring (16) is fixedly installed around one end of the connecting ring (15). A U-shaped ring (17) is movably connected around the inner ring of the I-shaped ring (16). A connecting tube (18) is fixedly connected around the inner ring of the U-shaped ring (17). An atomizer (19) is fixedly connected around one end of the connecting tube (18). An outer ring (20) is fixedly fitted around the outer ring of the connecting tube (18). Fan blades (21) are fixedly installed around the outer ring (20) at equal intervals.

2. The powder detergent spray drying mechanism according to claim 1, characterized in that: A cyclone separator (2) is connected to the outlet of the drying cylinder (1) via a pipe. A receiving cylinder (3) is fixedly installed at the lower outlet of the cyclone separator (2). A bag filter (4) is connected to the upper outlet of the cyclone separator (2) via a pipe. A centrifugal fan (5) is connected to the lower outlet of the bag filter (4) via a pipe.

3. The powder detergent spray drying mechanism according to claim 2, characterized in that: The centrifugal fan (5) has a return air pipe (6) fixedly installed at one end of its air outlet, and one end of the return air pipe (6) is fixedly connected to the lower end of the three-way pipe (11).

4. The powder detergent spray drying mechanism according to claim 1, characterized in that: One end of the air inlet pipe (9) passes through the drying cylinder (1) and is fixedly connected to the air outlet above the heater (10). The heater (10) is an electric heating device with an electric heating tube structure.

5. The powder detergent spray drying mechanism according to claim 1, characterized in that: A dust removal filter cylinder (13) is fixedly connected to one end of the air inlet of the air inlet fan (12), and the dust removal filter cylinder (13) is provided with a multi-layer filter structure inside.

6. The powder detergent spray drying mechanism according to claim 1, characterized in that: The other end of the feed pipe (14) is used to connect the feed pump and the container for storing liquid materials. The atomizer (19) is a pressure atomizing sprayer.

7. The powder detergent spray drying mechanism according to claim 1, characterized in that: One end of the feed pipe (14) is fitted with the connecting pipe (18), and a sealing ring is provided at the connection. The position of the fan blade (21) corresponds to the outlet position of the jet nozzle (8), and the jet nozzle (8) is inclined.

Images