Efficient heat recovery multi-heat-source kitchen waste fine residue feed drying system
By adopting efficient heat recovery multi-heat source technology and a stirring device in the kitchen waste fine slag drying system, the problems of low drying efficiency, high energy consumption and uneven stirring in the prior art are solved, and an efficient and stable drying process is achieved.
Patent Information
- Application Number
- CN202422013311.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-20
AI Technical Summary
The existing kitchen waste fine slag drying technology has low efficiency, high energy consumption, and uneven mixing, resulting in low production efficiency and unstable dry finished product quality.
A drying system with efficient heat recovery and multi-heat source is adopted, including a drying furnace, a heat exchanger, a thermal oil exchanger and a mold temperature machine. It uses dual heat sources of steam and hot air to heat and dry, and combines a stirring shaft and a stirring arm to achieve uniform heating and stirring.
It improves drying efficiency, reduces energy consumption, enhances stirring uniformity, improves production efficiency, and stabilizes the quality of dry finished products.
Smart Images
Figure CN222993386U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of drying systems, and specifically relates to an efficient heat recovery multi-heat-source kitchen waste fine residue feed drying system. Background Technique
[0002] The main source of kitchen waste is the remaining food on the table. After processes such as screening, fermentation, and oil extraction, fine residues are produced. These fine residues contain a large amount of nutrients such as protein and fat. On the premise of saving food, these fine residues can be used to replace or partially replace soybean meal, soybeans, and corn as feed additives for specific groups of animals through effective process treatment.
[0003] Among them, drying the kitchen waste fine residue is an essential process. Currently, the drying furnace for drying the kitchen waste fine residue adopts a steam heating method with stirring and a single heat source, which results in low drying efficiency, high energy consumption, uneven stirring, unstable quality of the dried fine residue finished product while reducing production efficiency. Therefore, it is necessary to make improvements. Content of the Utility Model
[0004] In order to solve the above problems of the prior art, the utility model provides an efficient heat recovery multi-heat-source kitchen waste fine residue feed drying system, which has fast drying efficiency and strong practicability.
[0005] To achieve the above purpose, the utility model adopts the following technical solutions:
[0006] As one aspect of the utility model, an efficient heat recovery multi-heat-source kitchen waste fine residue feed drying system is proposed, which includes: a drying furnace, a heat exchanger, a heat transfer oil exchanger, and a mold temperature controller. The drying furnace includes a drying cylinder, a power unit, and a stirring shaft rod. The power unit is arranged on the side of the drying cylinder. The drying cylinder has a drying cavity. The drying cylinder is provided with a feed inlet and a discharge outlet, and the feed inlet and the discharge outlet are respectively communicated with the drying cavity.
[0007] Both ends of the stirring shaft rod are rotatably connected to the drying cylinder through bearings. The stirring shaft rod is located in the drying cavity, and both ends thereof extend to the outside of the drying cavity respectively. The output end of the power unit is connected to one end of the stirring shaft rod. A number of stirring arms are arranged on the stirring shaft rod at intervals. The drying cylinder is provided with a first hot gas inlet, and the first hot gas inlet is communicated with the drying cavity. The drying cylinder is provided with a tail gas discharge outlet, and the tail gas discharge outlet is communicated with the drying cavity.
[0008] A heating cavity is formed on the drying cylinder, and the heating cavity surrounds the drying cavity. The feed inlet passes through the heating cavity and is communicated with the drying cavity. More than one steam inlet is connected to the heating cavity. A steam water outlet is provided at the bottom of the heating cavity.
[0009] The air outlet end of the exhaust gas outlet is connected to the first air inlet end of the heat exchanger. The second air inlet end of the heat exchanger is connected to the outside air. The air outlet end of the heat exchanger is connected to the air inlet end of the heat transfer oil exchanger. The steam and water outlet is connected to the water inlet end of the heat transfer oil exchanger. The air outlet end of the heat transfer oil exchanger is connected to the first hot air inlet.
[0010] The oil outlet end of the mold temperature machine is connected to the oil inlet end of the heat transfer oil exchanger. The oil outlet end of the heat transfer oil exchanger is connected to the oil inlet end of the mold temperature machine.
[0011] Further, the feed inlet is located at the top of the drying cylinder. The discharge outlet is located on the side of the drying cylinder away from the feed inlet.
[0012] Further, a number of stirring arms are distributed along the axis of the stirring shaft.
[0013] Further, the stirring shaft is hollow, and the other end of the stirring shaft is provided with a second hot air inlet.
[0014] Further, it further includes a sealing plate, and the sealing plate is matched with the feed inlet. The sealing plate is slidably connected to the feed inlet.
[0015] Further, a transverse movement motor is provided on the drying furnace, and the output end of the transverse movement motor is connected to the sealing plate.
[0016] The high-efficiency heat recovery multi-source kitchen waste fine residue feed drying system of the present invention has the following beneficial effects: It uses steam and hot air as dual heat sources for heating and drying. The heat source is increased with hot air, which raises the material temperature and accelerates drying. The hot air flow timely takes away the water vapor evaporated by the material, accelerating drying. The waste heat of the steam condensate is fully utilized, saving energy consumption. At the same time, the risk of being scalded is reduced. When the steam is insufficient, the hot air can make up for the heat to maintain stable production. The calorific value is recycled, reducing energy consumption. The cooling treatment amount of the post-process exhaust gas treatment is reduced, saving energy consumption. The recycled exhaust gas is cooled down, reducing the temperature of the workshop. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The schematic diagrams forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.
[0018] Figure 1 is the three-dimensional structure of the high-efficiency heat recovery multi-source kitchen waste fine residue feed drying system of the present invention Figure 1 ;
[0019] Figure 2 is the three-dimensional structure of the high-efficiency heat recovery multi-source kitchen waste fine residue feed drying system of the present invention Figure 2 ;
[0020] Figure 3 This is the rear view of the structure of the high-efficiency heat recovery multi-heat-source kitchen waste fine residue feed drying system of the present utility model. Detailed implementation manners
[0021] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments of the present utility model and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than 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 efforts shall fall within the scope of protection of the present utility model.
[0022] A high-efficiency heat recovery multi-heat-source kitchen waste fine residue feed drying system according to an embodiment of the present application, as Figures 1 - 3 shown, includes: a drying furnace 1 for drying kitchen waste; the drying furnace 1 includes a drying cylinder 11, a power unit 12 and a stirring shaft rod 13. The power unit 12 is arranged on the side of the drying cylinder 11. The power unit 12 is a driving motor or other device capable of realizing torque transmission, such as a speed reducer, etc., which will not be elaborated here; the drying cylinder 11 has a drying cavity. It should be noted that the drying cavity is connected by a housing and side plates, which is prior art and will not be elaborated; the drying cylinder 11 is provided with a feed inlet 111 and a discharge outlet 112, and the feed inlet 111 and the discharge outlet 112 are respectively communicated with the drying cavity; the feed inlet 111 is located at the top of the drying cylinder 11 for convenient feeding, and the discharge outlet 112 is located on the side of the drying cylinder 11 away from the feed inlet 111 for convenient discharging; both ends of the stirring shaft rod 13 are rotatably connected to the drying cylinder 11 through bearings. The stirring shaft rod 13 is located in the drying cavity, and both ends thereof extend to the outside of the drying cavity; the output end of the power unit 12 is connected to one end of the stirring shaft rod 13; the power unit 12 drives the stirring shaft rod 13 to rotate in the drying cavity; a plurality of stirring arms 14 are arranged on the stirring shaft rod 13 at intervals, and the plurality of stirring arms 14 are distributed along the axis of the stirring shaft rod 13; when the stirring shaft rod 13 rotates, it drives the stirring arms 14 to stir the materials in the drying cavity of the drying cylinder 11, so as to make the drying efficiency faster; the drying cylinder 11 is provided with a first hot gas inlet 115, the first hot gas inlet 115 is close to the feed inlet 111, and the first hot gas inlet 115 is communicated with the drying cavity for hot gas to enter and heat the materials in the drying cavity;
[0023] The drying cylinder 11 is provided with a tail gas discharge port 116, the tail gas discharge port 116 is close to the discharge outlet 112, and the tail gas discharge port 116 is communicated with the drying cavity for discharging the tail gas of the hot gas;
[0024] A heating chamber 113 is formed on the drying cylinder 11, and the heating chamber 113 surrounds the drying chamber; the feed inlet 111 passes through the heating chamber 113 and is connected to the drying chamber; one or more steam inlets 114 are connected to the heating chamber 113 for the entry of steam, and steam is used to heat the drying chamber, and then the materials in the drying chamber are heated; a steam water outlet 117 is provided at the bottom of the heating chamber 113 for the outflow of steam water;
[0025] It further includes a heat exchanger 2, a heat transfer oil exchanger 3 and a mold temperature controller 4. The gas outlet end of the tail gas discharge port 116 is connected to the first air inlet end of the heat exchanger 2, and the second air inlet end of the heat exchanger 2 is connected to the outside air. Hot air enters the heat exchanger 2 to heat the tail gas conveyed by the tail gas discharge port 116. It should be noted that the structure and working principle of the heat exchanger 2 are both prior arts and will not be elaborated here; the gas outlet end of the heat exchanger 2 is connected to the air inlet end of the heat transfer oil exchanger 3, and the hot air heated by the heat exchanger 2 enters the heat transfer oil exchanger 3 to work; the steam water outlet 117 is connected to the water inlet end of the heat transfer oil exchanger 3; the gas outlet end of the heat transfer oil exchanger 3 is connected to the first hot air inlet 115; the water outlet end of the heat transfer oil exchanger 3 is discharged to the outside for other treatments, which will not be elaborated here;
[0026] The oil outlet end of the mold temperature controller 4 is connected to the oil inlet end of the heat transfer oil exchanger 3, and the oil outlet end of the heat transfer oil exchanger 3 is connected to the oil inlet end of the mold temperature controller 4. The heat transfer oil exchanger 3 heats the heat transfer oil of the mold temperature controller 4 for convenient use; the tail gas is recycled secondly, and the heat transfer oil is preheated by the heat transfer oil exchanger 3, which is energy-saving and environment-friendly. It should be noted that the structures and working principles of the heat transfer oil exchanger 3 and the mold temperature controller 4 are both prior arts and will not be elaborated here; the focus of this embodiment is: how to combine and recycle the heat of the drying furnace 1 with the heat exchanger 2, the heat transfer oil exchanger 3 and the mold temperature controller 4.
[0027] In one embodiment, as Figures 1 - 2 shown, the stirring shaft rod 13 is hollow, and a second hot air inlet 131 is provided at the other end of the stirring shaft rod 13 for the entry of hot air to accelerate the drying of the materials in the drying chamber.
[0028] It should be noted that in this embodiment, the connection between the inlet and outlet ends of each component is connected by pipelines, which is a prior art and will not be elaborated here.
[0029] In one embodiment, as Figure 2As shown, it further includes a sealing plate 5, which cooperates with the feeding port 111 to open or close the feeding port 111; the sealing plate 5 is slidably connected to the feeding port 111, and a transverse movement motor 6 is provided on the drying furnace 1. The output end of the transverse movement motor 6 is connected to the sealing plate 5, and the sealing plate 5 is driven by the transverse movement motor 6 to cooperate with the feeding port 111.
[0030] In this embodiment, the drying furnace heats the kitchen waste materials under the action of steam, and the heat is discharged through the tail gas discharge port, and its temperature is 80-90 degrees; after the tail gas is discharged, it passes through a heat exchanger. The heat exchanger absorbs indoor air and is heated by the heat exchanger to about 50 degrees; the heated air is heated to 120 degrees by a heat conduction oil exchanger and supplied to the drying furnace through the first hot air inlet; after the steam water passes through the heat conduction oil exchanger, the cooling water is directly discharged into the sewage tank.
[0031] This embodiment adopts dual heat sources of steam and hot air for heating and drying; the heat source adds hot air, increases the material temperature, and accelerates drying; the hot air flow timely takes away the water vapor evaporated by the material, accelerating drying; the waste heat of the steam condensate is fully utilized, saving energy consumption; at the same time, the harm of being scalded is reduced; when the steam is insufficient, the hot air can make up for the heat and maintain stable production; the calorific value is recycled, reducing energy consumption; the cooling treatment amount of the post-process tail gas is reduced, saving energy consumption; the recycled tail gas is cooled down, reducing the temperature of the workshop.
[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0033] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps described in these embodiments do not limit the scope of the present application. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0034] In the description of the present application, it should be understood that the orientation or positional relationship indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present application; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.
[0035] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "above-mentioned", etc. can be used here to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the figure for the device. For example, if the device in the figure is inverted, the device described as "above" or "over" other devices or structures will then be positioned "below" or "beneath" other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.
[0036] In addition, it should be noted that the use of terms such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without additional statements, the above terms have no special meanings. Therefore, it should not be construed as a limitation on the protection scope of the present application.
[0037] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0038] The above are only the preferred embodiments of the present utility model. All equivalent changes and modifications made according to the scope of the patent application of the present utility model shall fall within the scope covered by the present utility model.
Claims
1. A high-efficiency heat recovery multi-heat source kitchen waste fine residue feed drying system, characterized in that: It includes: A drying furnace (1), a heat exchanger (2), a heat transfer oil exchanger (3) and a mold temperature controller (4), wherein the drying furnace (1) comprises a drying cylinder (11), a power unit (12) and a stirring shaft (13), wherein the power unit (12) is arranged on the side of the drying cylinder (11), the drying cylinder (11) has a drying chamber, and the drying cylinder (11) is provided with a feed inlet (111) and a discharge outlet (112), wherein the feed inlet (111) and the discharge outlet (112) are respectively connected to the drying chamber; The two ends of the stirring shaft (13) are rotatably connected to the drying cylinder (11) through bearings respectively; the stirring shaft (13) is located in the drying chamber, and the two ends thereof extend to the outside of the drying chamber respectively; the output end of the power unit (12) is connected to one end of the stirring shaft (13); a plurality of stirring arms (14) are arranged at intervals on the stirring shaft (13); the drying cylinder (11) is provided with a first hot air inlet (115), and the first hot air inlet (115) is connected to the drying chamber; the drying cylinder (11) is provided with an exhaust gas outlet (116), and the exhaust gas outlet (116) is connected to the drying chamber; A heating chamber (113) is formed on the drying cylinder (11), and the heating chamber (113) surrounds the drying chamber; the feed port (111) passes through the heating chamber (113) and is in communication with the drying chamber; the heating chamber (113) is connected to one or more steam inlets (114); and a steam water outlet (117) is provided at the bottom of the heating chamber (113); The outlet end of the tail gas outlet (116) is connected to the first air inlet end of the heat exchanger (2), the second air inlet end of the heat exchanger (2) is connected to the outside air, the outlet end of the heat exchanger (2) is connected to the air inlet end of the heat transfer oil exchanger (3); the steam water outlet (117) is connected to the water inlet end of the heat transfer oil exchanger (3); the outlet end of the heat transfer oil exchanger (3) is connected to the first hot gas inlet (115); The oil outlet end of the mold temperature controller (4) is connected to the oil inlet end of the heat transfer oil exchanger (3), and the oil outlet end of the heat transfer oil exchanger (3) is connected to the oil inlet end of the mold temperature controller (4).
2. The high-efficiency heat recovery multi-heat source kitchen waste fine residue feed drying system according to claim 1, characterized in that: The feed inlet (111) is located at the top of the drying cylinder (11); and the discharge outlet (112) is located at the side of the drying cylinder (11) away from the feed inlet (111).
3. The high-efficiency heat recovery multi-heat source kitchen waste fine residue feed drying system as claimed in claim 1, characterized in that: A plurality of stirring arms (14) are distributed along the axis of the stirring shaft (13).
4. The high-efficiency heat recovery multi-heat source kitchen waste fine residue feed drying system according to claim 1, characterized in that: The stirring shaft (13) is hollow, and a second hot air inlet (131) is provided at the other end of the stirring shaft (13).
5. The high-efficiency heat recovery multi-heat source kitchen waste fine residue feed drying system according to any one of claims 1 to 4, characterized in that: It also comprises a sealing plate (5), wherein the sealing plate (5) matches the feed port (111); the sealing plate (5) and the feed port (111) are slidably connected.
6. The high-efficiency heat recovery multi-heat source kitchen waste fine residue feed drying system as claimed in claim 5, characterized in that: The drying furnace (1) is provided with a transverse motor (6), and the output end of the transverse motor (6) is connected to the sealing plate (5).