Spray drying device for food processing
By setting up a preheating box and heat exchange tubes in the spray drying device, the hot air after drying is used to preheat the air to be heated, which solves the problem of heat energy waste and achieves energy saving and environmental protection. Fine powder is removed through the filter and rotating motor, thereby improving the operating efficiency of the equipment.
Patent Information
- Application Number
- CN202422646565.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-31
AI Technical Summary
During the use of existing spray drying devices, the residual heat in the hot air used to dry the atomized droplets is not effectively utilized, resulting in waste of heat energy and being detrimental to energy conservation and environmental protection.
A spray drying device is designed, which includes a preheating box and a drying box. The heat in the hot air after drying is used to preheat the air to be heated, heat exchange is achieved through the heat exchange tube, and fine powder is removed through the filter and rotating motor to avoid heat energy waste.
It realizes the effective utilization of heat energy, reduces energy waste, improves environmental protection, and avoids filter clogging through the design of the filter and rotating motor, thereby improving the operating efficiency of the equipment.
Smart Images
Figure CN223366244U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of spray drying, in particular to a spray drying device for food processing. Background Art
[0002] Spray drying technology is a drying method that uses an atomizer to break up solutions, emulsions, suspensions, or slurries into fine mist droplets. It has many advantages in the food industry and is widely used in foods such as milk powder, coffee, and tea, as well as in deep processing. Its main advantages include fast drying speed, good product quality, simple process and easy control, high productivity, fewer operators, and low labor intensity.
[0003] During the use of the current spray drying device for processing, some heat remains in the hot air used to dry the atomized droplets. Direct release of heat will lead to waste of heat energy and is not conducive to energy saving and environmental protection. Therefore, we propose a spray drying device for food processing. Utility Model Content
[0004] The purpose of the utility model is to provide a spray drying device for food processing, which has the advantages of being able to preheat the air to be heated by utilizing the heat remaining in the hot air after spray drying during the process of food spray drying, thereby avoiding waste of heat energy and being beneficial to energy conservation and environmental protection. It solves the problem that in the current spray drying device for processing, some heat still remains in the hot air used for drying atomized droplets during use, and direct release of the heat will lead to waste of heat energy, which is not beneficial to energy conservation and environmental protection.
[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a spray drying device capable of removing fine powder, comprising a preheating box and a drying box, wherein the preheating box is fixedly mounted on the upper surface of the drying box, a hot air blower is fixedly mounted on one side of the outer surface of the drying box, and the end of the hot air blower output pipe is fixedly connected to the outer surface of the drying box, a heat exchange tube is fixedly mounted inside the preheating box, both ends of the heat exchange tube are located outside the preheating box, and one end of the heat exchange tube is fixedly connected to the input end of the hot air blower, a connecting tube is fixedly connected on the side of the upper surface of the drying box facing away from the hot air blower, and the end of the connecting tube is fixedly connected to the outer surface of the preheating box, and an air outlet pipe is fixedly connected on the side of the outer surface of the preheating box facing away from the connecting tube.
[0006] Preferably, an air purifier is fixedly connected to the end of the heat exchange tube.
[0007] Preferably, a liquid feeding pipe is fixedly installed on one side of the outer surface of the drying box close to the hot air blower, and an atomizing nozzle is fixedly connected to one end of the liquid feeding pipe located inside the drying box.
[0008] Preferably, a drain valve is fixedly connected to the lower surface of the preheating box.
[0009] Preferably, a discharge valve is fixedly connected to the lower surface of the drying box.
[0010] Preferably, the bottom of the inner wall of the drying box is provided with inclined slopes at both sides above the discharge valve.
[0011] Preferably, a filter is fixedly installed on the inner wall of the drying box below the connecting pipe, a rotating motor is fixedly installed on the upper surface of the drying box above the filter, a brush plate is fixedly connected to the end of the output shaft of the rotating motor, and the brush plate is located below the filter.
[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0013] 1. The utility model is provided with a drying box, a hot air blower, a heat exchange pipe, a preheating box, a connecting pipe and an exhaust pipe, so that during the process of spray drying of food, the heat remaining in the hot air after spray drying can be used to preheat the air to be heated, thereby avoiding waste of heat energy and being beneficial to energy saving and environmental protection. The hot air after spray drying in the drying box is discharged into the preheating box through the connecting pipe. After the hot air blower is working, the outside air enters the heat exchange pipe, and the air to be heated in the heat exchange pipe exchanges heat with the hot air after spray drying through the heat exchange pipe. The preheated air is then heated by the hot air blower and transported to the drying box for spray drying.
[0014] 2. The utility model achieves the effect of filtering out fine powder in the hot air after spray drying and avoiding clogging of the filter by setting a filter, a rotating motor and a scraper. The hot air after spray drying is filtered out of the drying box through the filter to remove fine powder therein, and the rotating motor drives the brush plate to rotate, which can brush off the fine powder on the filter to avoid clogging of the filter. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional schematic diagram of the utility model;
[0016] Figure 2 This is a schematic diagram of the main structure of the utility model;
[0017] Figure 3 It is a schematic diagram of the main cross-sectional structure of the utility model.
[0018] Figure numerals: 1. Liquid supply pipe; 2. Hot air blower; 3. Preheating box; 4. Air purifier; 5. Rotating motor; 6. Drying box; 7. Air outlet pipe; 8. Drain valve; 9. Connecting pipe; 10. Discharge valve; 11. Atomizing nozzle; 12. Heat exchange tube; 13. Filter; 14. Brush plate; 15. Inclined slope. DETAILED DESCRIPTION
[0019] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.
[0020] Example 1
[0021] like Figure 1-Figure 3 As shown, the present invention proposes a spray drying device for food processing, comprising a preheating box 3 and a drying box 6, the preheating box 3 is fixedly mounted on the upper surface of the drying box 6, a hot air blower 2 is fixedly mounted on one side of the outer surface of the drying box 6, the end of the output pipe of the hot air blower 2 is fixedly connected to the outer surface of the drying box 6, a heat exchange tube 12 is fixedly mounted inside the preheating box 3, both ends of the heat exchange tube 12 are located outside the preheating box 3, and one end of the heat exchange tube 12 is fixedly connected to the input end of the hot air blower 2, the end of the heat exchange tube 12 is fixedly connected to an air purifier 4, and the outside air is purified by the air purifier 4 before entering the inside of the heat exchange tube 12, a connecting tube 9 is fixedly connected to the side of the upper surface of the drying box 6 facing away from the hot air blower 2, and the end of the connecting tube 9 is fixedly connected to the outer surface of the preheating box 3.
[0022] An air outlet pipe 7 is fixedly connected to the side of the outer surface of the preheating box 3 facing away from the connecting pipe 9, and a drain valve 8 is fixedly connected to the lower surface of the preheating box 3. The condensed water collected inside the preheating box 3 is drained away through the drain valve 8. A liquid feeding pipe 1 is fixedly installed on the side of the outer surface of the drying box 6 close to the hot air blower 2, and one end of the liquid feeding pipe 1 located inside the drying box 6 is fixedly connected to an atomizing nozzle 11. The food liquid is fed into the inside of the atomizing nozzle 11 through the liquid feeding pipe 1 and is atomized and sprayed into the inside of the drying box 6 through the atomizing nozzle 11. A discharge valve 10 is fixedly connected to the lower surface of the drying box 6. The dry food collected inside the drying box 6 can be discharged by opening the discharge valve 10. The bottom of the inner wall of the drying box 6 is provided with inclined slopes 15 on both sides above the discharge valve 10. The setting of the inclined slope 15 facilitates the dry food collected inside the drying box 6 to slide to the position of the discharge valve 10.
[0023] When the present invention is in use, food liquid is fed into the atomizing nozzle 11 through the liquid feeding pipe 1, and is atomized and sprayed into the drying box 6 through the atomizing nozzle 11. The outside air is purified by the air purifier 4 and then discharged into the drying box 6 through the hot air blower 2. The atomized liquid droplets come into contact with the hot air to dry the atomized liquid, thereby producing dried food. The hot air after spray drying in the drying box 6 is discharged into the preheating box 3 through the connecting pipe 9. The air to be heated in the heat exchange tube 12 exchanges heat with the hot air after spray drying through the heat exchange tube 12. The preheated air is then heated by the hot air blower 2 and then fed to the drying box 6 for spray drying. The heat in the hot air after spray drying can be recovered, which is beneficial to energy saving and environmental protection.
[0024] Example 2
[0025] like Figure 1-Figure 3As shown, the present invention proposes a spray drying device for food processing. Compared with the first embodiment, this embodiment also includes a filter 13 fixedly installed on the inner wall of the drying box 6 below the connecting pipe 9, a rotating motor 5 fixedly installed on the upper surface of the drying box 6 above the filter 13, and a brush plate 14 fixedly connected to the end of the output shaft of the rotating motor 5, and the brush plate 14 is located below the filter 13.
[0026] In this embodiment, the hot air after spray drying is filtered through the filter 13 to remove fine powder before being discharged from the drying box 6, and the rotating motor 5 drives the brush plate 14 to rotate, which can brush off the fine powder on the filter 13 to prevent the filter 13 from being blocked.
[0027] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A spray drying device for food processing, comprising a preheating box (3) and a drying box (6), characterized in that: A preheating box (3) is fixedly mounted on the upper surface of the drying box (6); a hot air blower (2) is fixedly mounted on one side of the outer surface of the drying box (6); the end of the output pipe of the hot air blower (2) is fixedly connected to the outer surface of the drying box (6); a heat exchange pipe (12) is fixedly mounted inside the preheating box (3); both ends of the heat exchange pipe (12) are located outside the preheating box (3), and one end of the heat exchange pipe (12) is fixedly connected to the input end of the hot air blower (2); a connecting pipe (9) is fixedly connected to the side of the upper surface of the drying box (6) facing away from the hot air blower (2), and the end of the connecting pipe (9) is fixedly connected to the outer surface of the preheating box (3); and an air outlet pipe (7) is fixedly connected to the side of the outer surface of the preheating box (3) facing away from the connecting pipe (9).
2. The spray drying device for food processing according to claim 1, characterized in that: The end of the heat exchange tube (12) is fixedly connected to an air purifier (4).
3. The spray drying device for food processing according to claim 1, characterized in that: A liquid feeding pipe (1) is fixedly installed on one side of the outer surface of the drying box (6) close to the hot air blower (2), and an atomizing nozzle (11) is fixedly connected to one end of the liquid feeding pipe (1) located inside the drying box (6).
4. The spray drying device for food processing according to claim 1, characterized in that: A drain valve (8) is fixedly connected to the lower surface of the preheating box (3).
5. The spray drying device for food processing according to claim 1, characterized in that: A discharge valve (10) is fixedly connected to the lower surface of the drying box (6).
6. The spray drying device for food processing according to claim 5, characterized in that: The bottom of the inner wall of the drying box (6) is provided with inclined slopes (15) at both sides above the discharge valve (10).
7. The spray drying device for food processing according to claim 1, characterized in that: A filter screen (13) is fixedly installed on the inner wall of the drying box (6) at a position below the connecting pipe (9), a rotating motor (5) is fixedly installed on the upper surface of the drying box (6) at a position above the filter screen (13), a brush plate (14) is fixedly connected to the end of the output shaft of the rotating motor (5), and the brush plate (14) is located below the filter screen (13).