A continuous feeding and discharging high-efficiency dryer for sodium diacetate production

Abstract

The utility model discloses a kind of efficient dryers for sodium diacetate production of continuous feeding and discharging, including screw conveyor, the feeding hopper connected with the feeding end of screw conveyor, the drying box connected with the discharging end of screw conveyor, ultrasonic transducer and nitrogen injection port are equipped on feeding hopper, receiving plate is equipped in drying box, cross rotary scraper is equipped above receiving plate, scraping tooth is equipped in cross rotary scraper bottom, drying box both sides are equipped with hot air inlet and outlet duct;Receiving plate is embedded and installed in drying box, receiving plate is connected between the bottom of drying box by spring, vibration motor is equipped in receiving plate bottom, pressing cylinder for pressing one end of receiving plate is equipped on drying box, discharging port for discharging material is equipped on drying box on one side of receiving plate pressing end. The utility model can realize continuous production, improve productivity, also has the advantages such as anti-blocking, ensure cloth uniformity, finally realize the efficient drying of material.

Description

Technical Field

[0001] This utility model relates to the field of sodium diacetate production technology, and in particular to a high-efficiency dryer for sodium diacetate production with continuous feeding and discharging. Background Technology

[0002] Sodium diacetate, as a food preservative, is prone to absorbing moisture and clumping, and is sensitive to drying temperature, requiring strict control of its moisture content. Traditional drying equipment, such as ovens and fluidized beds, suffers from several drawbacks. Ovens are inefficient, operate intermittently, rely heavily on manual labor, and consume a lot of energy. Fluidized bed drying is also prone to clumping, making continuous production impossible, resulting in low capacity, increased costs, and unsuitability for large-scale manufacturing. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a high-efficiency dryer for the production of sodium diacetate with continuous feeding and discharging, which aims to solve the technical problems of easy agglomeration, inability to achieve continuous production, and high production capacity and low cost in the existing technology.

[0004] The technical solution of this utility model is: a high-efficiency dryer for continuous feeding and discharging of sodium diacetate, comprising a screw conveyor, a feed hopper connected to the feed end of the screw conveyor, and a drying chamber connected to the discharge end of the screw conveyor. The feed hopper is equipped with an ultrasonic transducer and a nitrogen injection port. The drying chamber is equipped with a receiving plate, a cross-shaped rotating scraper is provided above the receiving plate, and scraping teeth for dispersing materials are provided at the bottom of the cross-shaped rotating scraper. Hot air inlet pipes and hot air outlet pipes are respectively provided on both sides of the drying chamber. The receiving plate is embedded in the inner wall of the drying chamber, and the receiving plate is connected to the bottom of the drying chamber by a spring. A vibration motor is provided at the bottom of the receiving plate. The drying chamber is equipped with a pressing cylinder for pressing down one end of the receiving plate. The drying chamber on the side of the pressing end of the receiving plate is also equipped with a discharge port for discharging materials.

[0005] Furthermore, the feed hopper of this utility model includes a conical hopper body and a discharge pipe disposed at the bottom of the conical hopper body, and the ultrasonic transducers are symmetrically installed on the outer walls of both sides of the conical hopper body.

[0006] Furthermore, the discharge pipe of this utility model is provided with an annular air inlet chamber, the outer side of the annular air inlet chamber is connected to the nitrogen injection port, and the inner wall of the discharge pipe is provided with a ring of several air distribution holes connected to the annular air inlet chamber.

[0007] Furthermore, the air distribution holes in this invention are arranged at an angle downwards.

[0008] Furthermore, the cross-shaped rotating scraper of this utility model has four perforated scrapers, each of which has several waist holes. The distance between two adjacent waist holes on the left and right sides of the perforated scraper gradually decreases from the inner end to the outer end of the perforated scraper.

[0009] Furthermore, the scraping teeth described in this utility model are ceramic scraping teeth.

[0010] Furthermore, in this utility model, the cross-shaped rotating scraper is rotatably mounted on the support frame by a motor, and the top of the drying oven is provided with a lifting cylinder that drives the support frame to rise and fall.

[0011] Furthermore, the drying box of this utility model is provided with an air inlet plate and an air outlet plate on both sides, which are connected to the hot air inlet pipe and the hot air outlet pipe, respectively.

[0012] Furthermore, the drying chamber of this utility model is provided with a sealing gasket that contacts the upper surface edge of the receiving plate. The spring presses the receiving plate against the sealing gasket. The pressing cylinder is located at the top of the drying chamber. The output shaft of the pressing cylinder extends into the drying chamber and is connected to a pressure rod. The pressure rod is used to contact and press down the receiving plate.

[0013] Compared with the prior art, this utility model has the following advantages: This utility model can achieve continuous production and improve production capacity by using a screw conveyor at the feeding end and a vibrating motor to vibrate and discharge the material; the feeding hopper has a special structure design and is equipped with an ultrasonic transducer to destroy the material arch structure through high-frequency micro-vibration; the nitrogen injection port can introduce dry nitrogen to isolate moisture and reduce the viscosity of the material, thereby preventing material blockage; the drying box has a built-in cross rotating scraper, which can disperse and control the thickness of the material layer, and work with the bottom scraper teeth to forcefully break up agglomerates, ensuring uniform material distribution and achieving efficient drying of the material. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the specific structure of the feed hopper described in this utility model;

[0016] Figure 3 This is a schematic diagram showing the state of the drying box when discharging material as described in this utility model.

[0017] The components include: 1. Screw conveyor; 2. Feed hopper; 201. Conical hopper body; 202. Discharge pipe; 3. Drying box; 3a. Hot air inlet pipe; 3b. Hot air outlet pipe; 3c. Discharge port; 4. Ultrasonic vibrator; 5. Nitrogen injection port; 6. Annular air inlet chamber; 7. Air distribution hole; 8. Receiving plate; 9. Cross rotating scraper; 9a. Waist hole; 10. Scraper teeth; 11. Spring; 12. Vibration motor; 13. Downward pressing cylinder; 14. Motor; 15. Support frame; 16. Lifting cylinder; 17. Air inlet and air distribution plate; 18. Air outlet and air distribution plate; 19. Sealing gasket; 20. Pressure rod. Detailed Implementation

[0018] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0019] Example:

[0020] The accompanying drawings illustrate a specific embodiment of a high-efficiency dryer for the continuous feeding and discharging of sodium diacetate according to this invention. Figure 1 It mainly includes a screw conveyor 1, with a feed hopper 2 at the feed end of the screw conveyor 1 and a drying chamber 3 connected to the discharge end of the screw conveyor 1. The material is fed into the feed hopper 2 and conveyed to the drying chamber 3 by the screw conveyor 1 for drying.

[0021] Combination Figure 2 The feed hopper 2 includes a conical hopper body 201, with a discharge pipe 202 at the bottom of the conical hopper body 201, which is connected to the screw conveyor 1. The inner wall of the feed hopper 2 is coated with polytetrafluoroethylene to eliminate material adhesion. Ultrasonic transducers 4 are symmetrically installed on the outer walls of both sides of the conical hopper body 201. The high-frequency micro-vibrations emitted by the ultrasonic transducers 4 can disrupt the material arch structure and prevent material blockage. The outer wall of the discharge pipe 202 is provided with a nitrogen injection port 5, and the discharge pipe 202 is provided with an annular air inlet chamber 6. The outer side of the annular air inlet chamber 6 is connected to the nitrogen injection port 5. The inner wall of the discharge pipe 202 is provided with a ring of several air distribution holes 7 connected to the annular air inlet chamber 6. The air distribution holes 7 are set at an angle downward. Dry nitrogen can be introduced through the nitrogen injection port 5. The dry nitrogen is evenly distributed to each air distribution hole 7 through the annular air inlet chamber 6 and injected into the discharge pipe 202. This can isolate moisture, reduce the viscosity of the material, and further achieve anti-clogging.

[0022] The screw conveyor 1 conveys the material upwards into the drying chamber 3. The drying chamber 3 is equipped with a receiving plate 8, onto which the material falls. Above the receiving plate 8 is a cross-shaped rotating scraper 9, which has four perforated scrapers. Each scraper has several side holes 9a. The distance between two adjacent side holes 9a on the scraper gradually decreases from the inner end to the outer end, forming a gradient material distribution area. This means the hole density on the cross-shaped rotating scraper 9 increases from the inside out, preventing material accumulation at the edges and achieving uniform material distribution during rotation. The bottom of the cross-shaped rotating scraper 9 is equipped with scraper teeth 10, which forcibly break up clumps. The scraper teeth 10 are ceramic and have an anti-sticking function.

[0023] The cross-shaped rotating scraper 9 is driven by the motor 14 and rotatably mounted on the support frame 15. The top of the drying chamber 3 is equipped with a lifting cylinder 16 that connects to drive the support frame 15 to rise and fall. The lifting cylinder 16 can drive the support frame 15 to move the cross-shaped rotating scraper 9 up and down, thereby controlling the thickness of the material layer. The motor 14 can drive the cross-shaped rotating scraper 9 to rotate, and the speed of the cross-shaped rotating scraper 9 is adjustable to ensure uniform material distribution.

[0024] The drying chamber 3 is equipped with an air inlet plate 17 and an air outlet plate 18 on both sides. The air inlet plate 17 is connected to the hot air inlet pipe 3a, and the air outlet plate 18 is connected to the hot air outlet pipe 3b. Through uniform air blowing, combined with the rotation of the cross-shaped rotating scraper 9, the material can be dried efficiently.

[0025] The receiving plate 8 is embedded in the inner wall of the drying chamber 3, and the drying chamber 3 is provided with a sealing gasket 19 that contacts the upper surface edge of the receiving plate 8. The receiving plate 8 is connected to the bottom of the drying chamber 3 by a spring 11, which presses the receiving plate 8 against the sealing gasket 19 to ensure the airtightness of the upper space when the material is drying.

[0026] A vibration motor 12 is provided at the bottom of the receiving plate 8. A pressing cylinder 13 is provided on the drying chamber 3 for pressing down one end of the receiving plate 8. The pressing cylinder 13 is located at the top of the drying chamber 3. The output shaft of the pressing cylinder 13 extends into the drying chamber 3 and is connected to a pressure rod 20. The pressure rod 20 is used to contact the pressing receiving plate 8. The drying chamber 3 on the side of the pressing end of the receiving plate 8 is also provided with a discharge port 3c for discharging materials.

[0027] Combination Figure 3 After the material is dried, the pressure cylinder 13 drives the pressure rod 20 to extend downwards, pressing one end of the receiving plate 8 downwards. The spring 11 is compressed, and then the vibration motor 12 is started. The dried material is evenly distributed with vibration and moves towards the discharge port 3c, finally being output from the discharge port 3c. After the material is discharged, the vibration motor 12 is turned off, the pressure rod 20 is reset, and the receiving plate 8 is pressed against the sealing gasket 19 under the action of the spring 11, preparing for the next drying cycle.

[0028] Of course, the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All modifications made in accordance with the spirit and essence of the main technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. A high-efficiency dryer for the continuous feed and discharge of sodium diacetate, characterized in that: The assembly includes a screw conveyor (1), a feed hopper (2) connected to the feed end of the screw conveyor (1), and a drying chamber (3) connected to the discharge end of the screw conveyor (1). The feed hopper (2) is equipped with an ultrasonic transducer (4) and a nitrogen injection port (5). The drying chamber (3) is equipped with a receiving plate (8). A cross-shaped rotating scraper (9) is provided above the receiving plate (8). The bottom of the cross-shaped rotating scraper (9) is equipped with scraping teeth (10) for dispersing materials. The drying chamber (3) is equipped with... It has a hot air inlet pipe (3a) and a hot air outlet pipe (3b); the receiving plate (8) is embedded in the inner wall of the drying box (3), and the receiving plate (8) is connected to the bottom of the drying box (3) by a spring (11). The bottom of the receiving plate (8) is provided with a vibration motor (12), and the drying box (3) is provided with a pressing cylinder (13) for pressing down one end of the receiving plate (8). The drying box (3) on the side of the pressing end of the receiving plate (8) is also provided with a discharge port (3c) for discharging materials.

2. The high-efficiency dryer for continuous feed and discharge sodium diacetate production according to claim 1, characterized in that: The feed hopper (2) includes a conical hopper body (201) and a discharge pipe (202) located at the bottom of the conical hopper body (201). The ultrasonic transducers (4) are symmetrically installed on the outer walls of both sides of the conical hopper body (201).

3. A high-efficiency dryer for continuous feed and discharge sodium diacetate production according to claim 2, characterized in that: The discharge pipe (202) is provided with an annular air inlet chamber (6), the outer side of the annular air inlet chamber (6) is connected to the nitrogen injection port (5), and the inner wall of the discharge pipe (202) is provided with a ring of several air distribution holes (7) connected to the annular air inlet chamber (6).

4. A high-efficiency dryer for continuous feed and discharge sodium diacetate production according to claim 3, characterized in that: The air distribution holes (7) are set at an angle downwards.

5. A high-efficiency dryer for continuous feed and discharge sodium diacetate production according to claim 1, characterized in that: The cross-shaped rotating scraper (9) has four perforated scrapers, each of which has several waist holes (9a). The distance between two adjacent waist holes (9a) on the perforated scraper gradually decreases from the inner end to the outer end of the perforated scraper.

6. A high-efficiency dryer for continuous feed and discharge sodium diacetate production according to claim 1, characterized in that: The scraper teeth (10) are ceramic scraper teeth.

7. A high-efficiency dryer for continuous feed and discharge sodium diacetate production according to claim 5, characterized in that: The cross-shaped rotating scraper (9) is driven by a motor (14) and rotatably mounted on a support frame (15). The top of the drying box (3) is provided with a lifting cylinder (16) that drives the support frame (15) to rise and fall.

8. A high-efficiency dryer for continuous feed and discharge sodium diacetate production according to claim 1, characterized in that: The drying box (3) is provided with an air inlet diffuser (17) and an air outlet diffuser (18) on both sides, which are connected to the hot air inlet pipe (3a) and the hot air outlet pipe (3b), respectively.

9. A high-efficiency dryer for continuous feed and discharge sodium diacetate production according to claim 1, characterized in that: The drying chamber (3) is provided with a sealing gasket (19) that contacts the upper surface edge of the receiving plate (8). The spring (11) presses the receiving plate (8) against the sealing gasket (19). The pressing cylinder (13) is located at the top of the drying chamber (3). The output shaft of the pressing cylinder (13) extends into the drying chamber (3) and is connected to a pressure rod (20). The pressure rod (20) is used to contact and press down the receiving plate (8).

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