Baking and drying integrated dryer

Abstract

The utility model belongs to the technical field of baking and drying. The baking and drying integrated dryer, include: baking section, be used for to material quick heating setting; First material import is arranged on the baking section, be used for the feed of pet baked grain; Drying section, be used for the drying of material and remove water; The drying section sets up the lower layer at the baking section, and the discharge end of drying section extends the discharge end of baking section and sets up second material import outside, be used for the feed of puffed pet grain; Second material import with first material import respectively locate the both ends of baking and drying integrated dryer. The utility model is used to solve the existing baking and drying integrated dryer cannot take into account the production pet baked grain and puffed pet grain technical problem.

Description

Technical Field

[0001] This utility model belongs to the field of baking and drying technology, and specifically relates to an integrated baking and drying dryer. Background Technology

[0002] This integrated baking and drying dryer is used for drying pet food and regular extruded pet food. It is mainly designed for the baking and drying process of pet food, achieving sterilization and dehydration of the materials.

[0003] The integrated baking and drying machine is mainly designed for baking and drying pet food. It utilizes a high-temperature environment to sterilize and remove moisture from the materials, bringing them to a specified moisture range for long-term storage. Currently, the pet food industry has production needs for both high-end baked pet food and regular extruded pet food. Due to the different forming processes of baked and extruded food, the way these two materials enter the drying section differs significantly. Currently, feed mills producing these two types of materials use separate production lines to meet the production needs of each type.

[0004] In existing technologies, pet food baking production lines and regular extruded pet food production lines are separate, each with its own independent drying system to complete the baking, drying, or dehydration process of the materials. This presents the following technical problems:

[0005] Problem 1: The pet food drying system lacks a spreading system, which cannot guarantee that the material from the extruder is evenly spread onto the conveyor belt, making it unsuitable for drying ordinary extruded pet food. Similarly, ordinary extruded pet food drying systems cannot guarantee that the cold-pressed material is spread evenly on the conveyor belt in a single layer, making them unsuitable for drying pet food.

[0006] Question 2: In the existing process layout, the pet food baking drying system and the ordinary extruded pet food drying system are arranged independently. The two production lines have two independent drying systems, which has high requirements for site layout and factory buildings, and high investment costs.

[0007] The Chinese invention patent "Baking and Drying Integrated Machine and Material Baking and Drying Method" with publication number CN118031582A and publication date May 14, 2024 can only meet the production needs of pet food baking, but cannot meet the needs of producing ordinary pet food. Utility Model Content

[0008] The purpose of this invention is to provide an integrated baking and drying machine to solve the technical problem that existing integrated baking and drying machines cannot simultaneously produce both baked pet food and extruded pet food.

[0009] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: an integrated baking and drying dryer, characterized in that it includes:

[0010] The baking section is used to rapidly heat and shape the materials; the baking section is equipped with a first material inlet for feeding pet food.

[0011] The drying section is used for drying and dehydrating the materials; the drying section is located below the baking section, and the discharge end of the drying section extends beyond the discharge end of the baking section and is provided with a second material inlet for feeding the extruded pet food; the second material inlet and the first material inlet are located at opposite ends of the baking and drying integrated dryer.

[0012] This invention sets up two independent feeding methods based on the different molding processes of pet baked food and ordinary extruded pet food. It simultaneously takes into account the production of both pet baked food and ordinary extruded pet food, and uses a single drying section to meet the production needs of both materials. This can optimize the on-site process layout and effectively reduce input costs.

[0013] To solve the technical problem of uneven material distribution on the conveyor belt of the drying section, this utility model adopts the following technical solution: a feeding mechanism is set on the second material inlet to ensure that the upstream material falls evenly onto the upper layer of the conveyor belt of the drying section after being spread by the spreader.

[0014] To solve the technical problem of how the feeding mechanism is implemented, the present invention adopts the following technical solution: the feeding mechanism is a spreader, which is used to spread the upstream material evenly and drop it onto the conveying assembly of the drying section;

[0015] The spreader is mounted on the discharge end of the drying section via a spreader support, ensuring that the upstream material is evenly distributed onto the upper layer of the conveyor belt in the drying section after being spread by the spreader.

[0016] To solve the technical problem of how the spreader works, this utility model adopts the following technical solution: the spreader includes a spreader hopper and a spreader drive component. The spreader drive component drives the spreader hopper to swing back and forth, ensuring that the upstream material falls evenly onto the upper layer of the drying section conveyor belt after being spread by the spreader.

[0017] To solve the technical problem of large heat loss, the present invention adopts the following technical solution: a sliding groove plate is provided between the feeding mechanism and the drying section;

[0018] When the baking and drying integrated dryer is used to produce pet food, the slide plate closes to reduce heat loss;

[0019] When the baking and drying integrated dryer is used to produce extruded pet food, the slide plate opens for feeding the extruded pet food.

[0020] To solve the technical problem of material leakage into the discharge hopper of the drying section, this utility model adopts the following technical solution: a material discharge baffle is provided on the drying section to prevent the material from the feeding mechanism from leaking into the discharge hopper of the drying section through the end of the material conveying component of the drying section.

[0021] To solve the technical problem of difficult maintenance of the baking section, this utility model adopts the following technical solution: a maintenance door is provided on the discharge end of the baking section to facilitate the maintenance of the upper baking section. An opening space is left between the maintenance door and the feeding mechanism to facilitate the normal opening of the maintenance door.

[0022] To solve the technical problem of difficulty in getting materials from the upstream molding machine into the baking section, this utility model adopts the following technical solution: the first material inlet is a fully open structure, which makes it convenient for the materials from the upstream molding machine to be directly laid flat on the conveyor belt of the baking section.

[0023] To solve the technical problem of material leakage from the side of the conveyor belt in the baking section, this utility model adopts the following technical solution: the material conveying component of the baking section includes a first conveyor belt, the width of which is slightly wider than the width of the upstream forming machine, in order to prevent material leakage from the side of the first conveyor belt.

[0024] To solve the technical problem of heat loss, the present invention adopts the following technical solution: a heat insulation layer is set at the bottom of the baking section where the first material inlet is located to insulate against heat and reduce heat loss. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the integrated baking and drying machine of this utility model. The arrows in the diagram indicate the direction of material inflow and outflow.

[0026] Figure 2 This is a schematic diagram of the baking section of the integrated baking and drying machine of this utility model;

[0027] Figure 3 This is a schematic diagram of the drying section of the baking and drying integrated dryer of this utility model;

[0028] Figure 4 This is a schematic diagram of the feeding section of the integrated baking and drying machine of this utility model;

[0029] Figure 5 This describes the material movement process in the feeding section of the integrated baking and drying dryer of this utility model.

[0030] Figure 6 This utility model describes the material movement process in the return section of the baking and drying integrated dryer used for producing pet food.

[0031] Figure 7This utility model describes the material movement process in the return section of the baking and drying integrated dryer during the production of extruded pet food;

[0032] In the picture:

[0033] 1. Baking section; 11. Feeding section assembly; 111. Feeding section frame; 112. Guide rail assembly; 113. Sealing plate assembly; 114. Fan hood assembly; 115. Driven shaft assembly; 116. Tensioning device; 117. First material inlet; 12. First conveyor belt; 13. Intermediate baking section assembly; 14. Return section assembly; 141. Discharge baffle; 142. Inspection door;

[0034] 2. Drying section; 21. Feeding section assembly; 22. Intermediate drying section assembly; 221. Drying section frame; 222. First discharge baffle; 23. Feeding mechanism; 231. Gear motor; 232. Spreader hopper; 24. Spreader support; 25. Return section assembly; 251. Slide chute; 252. Second discharge baffle; 253. Second material inlet; 254. Material outlet; 26. Second conveyor belt; 27. Discharge hopper. Detailed Implementation

[0035] The present invention will be further described below with reference to the figures.

[0036] The production process of baked pet food differs significantly from that of regular extruded pet food. Their molding processes are entirely different. Baked pet food is cold-pressed at temperatures close to or below room temperature. After molding, the material has a high moisture content, making it prone to deformation and sticking, and it cannot be stacked. Drying baked pet food requires rapid heating and shaping at high temperatures within a very short time, followed by dehydration. Regular extruded pet food, after being extruded in an extruder, has a higher temperature, full-bodied particles, low moisture content, and is less prone to deformation. It does not require high-temperature shaping and can be stacked for drying.

[0037] Considering the drying and dehydration requirements of both baked pet food and regular extruded pet food, and addressing the differences in drying processes for the two materials in the drying section, this embodiment designs an integrated baking and drying belt dryer.

[0038] like Figure 1 As shown, an integrated baking and drying dryer includes an upper baking section 1 and a lower drying section 2, which are stacked one on top of the other. The baking section 1 and drying section 2 can be constructed as separate units connected and fixed by fasteners, or their main frame can be made as a single unit, separated by a base plate. The following description uses the separate structure as an example to illustrate the entire technical solution. For its overall structural form and workflow, please refer to CN111319985A.

[0039] like Figure 2 As shown, the upper baking section 1 mainly includes a feeding section assembly 11, a first conveyor belt 12, an intermediate baking section assembly 13, and a return section assembly 14.

[0040] like Figure 4 As shown, the feeding section assembly 11 mainly includes a feeding section frame 111, a guide rail assembly 112, a sealing plate assembly 113, a wind hood assembly 114, a driven shaft assembly 115, and a tensioning device 116 for tensioning the first conveyor belt 12.

[0041] The upper part of the feeding section frame 111 is a fully open structure, forming the first material inlet 117, which facilitates the direct spreading of material from the upstream forming machine onto the first conveyor belt 12.

[0042] In one embodiment, the feeding assembly of the baking section 1 includes a first conveyor belt 12, the width of which is slightly wider than the width of the upstream forming machine to prevent material from leaking out from the side of the first conveyor belt. Specifically, the width of the first conveyor belt 12 is determined by the width of the forming machine in the upstream process. The width of the first conveyor belt 12 is slightly wider than that of the upstream forming machine to prevent material from leaking out from the side. Only a partial schematic of the first conveyor belt 12 is shown, and its structural form is not limited to a tracked plate structure or a mesh belt structure.

[0043] The guide rail assembly 112 has two layers, upper and lower, for supporting the first conveyor belt 12.

[0044] The sealing plate assembly 113 is located on both sides of the frame and is used for sealing. Specifically, there are sealing plate assemblies 113 on both the left and right sides of the feed section assembly 11, and one side is hidden for easy display of other structures.

[0045] The bottom of the feeding section 11 is equipped with an insulation layer, which serves to insulate against heat and reduce heat loss.

[0046] Baking section 1 is used for rapid heating and shaping of materials; baking section 1 is provided with a first material inlet 117 for feeding pet food. In one embodiment, the first material inlet 117 is a fully open structure.

[0047] In one embodiment, an insulation layer is provided at the bottom of the baking section where the first material inlet 117 is located to insulate against heat and reduce heat loss.

[0048] In one embodiment, an inspection door 142 is provided on the discharge end of the baking section 1. Specifically, in order to facilitate the maintenance of the upper baking section 2, an inspection door 142 is provided at the end of the return section assembly 14, and sufficient opening space is provided between the inspection door 142 and the spreader 23 to facilitate the normal opening of the inspection door 142.

[0049] Drying section 2 is used for drying and dehydrating materials; drying section 2 is located below baking section 1. Figure 3As shown, the lower drying section 2 mainly includes a feeding section assembly 21, an intermediate drying section assembly 22, a spreader 23, a spreader support 24, a return section assembly 25, a conveyor belt 26, and a discharge hopper 27.

[0050] The discharge end of the drying section 2 extends beyond the discharge end of the baking section 1 and is equipped with a second material inlet 253 for feeding the extruded pet food; the second material inlet 253 and the first material inlet 117 are located at opposite ends of the baking and drying integrated dryer.

[0051] Based on the material characteristics and drying process of baked pet food and regular extruded pet food, this embodiment designs two independent feeding methods on the basis of the integrated baking and drying dryer. The two feeding structures are independent of each other and can meet the feeding and drying needs of baked pet food and regular extruded pet food respectively. It can simultaneously meet the drying needs of two different production lines with the same drying section, which is conducive to optimizing the process layout on site and reducing the initial equipment investment cost.

[0052] like Figure 1 As shown, this embodiment of the baking and drying integrated dryer includes two material inlets: a first material inlet 117 on the baking section 1 and a second material inlet 253 on the drying section 2. A material outlet 254 is located at the bottom of the dryer. When producing baked pet food, the material enters the upper baking section 1 through the first material inlet 117. The baking section 1 is a high-temperature zone that rapidly heats and shapes the material. The material then enters the drying section 2 from the rear. After drying and dehydration in the drying section 2, the material exits through the bottom material outlet 254 to proceed to the next process step. When producing ordinary extruded pet food, which does not require high-temperature shaping, the material can directly enter the drying section 2 through the second material inlet 253. After drying and dehydration in the drying section 2, the material exits through the bottom material outlet to proceed to the next process step.

[0053] In one embodiment, a feeding mechanism 23 is provided on the second material inlet 253. An opening space is provided between the feeding mechanism 23 and the inspection door 142. This invention adds a feeding mechanism at the end of the drying section for spreading ordinary extruded pet food.

[0054] In one embodiment, the feeding mechanism 23 is a spreader, used to spread the upstream material evenly and drop it onto the conveying assembly of the drying section; the spreader is set at the discharge end of the drying section via the spreader support 24.

[0055] In one embodiment, the spreader 23 includes a spreader hopper 232 and a spreader drive 231, the spreader drive driving the spreader hopper to swing back and forth. The spreader drive 231 is preferably a geared motor. When producing pet food, the spreader 23 is in a stopped state.

[0056] In one embodiment, to reduce heat loss, a chute plate 251 is provided on the top of the return section 25 to reduce heat loss from the spreader 23. Specifically, a chute plate 251 is provided between the feeding mechanism 23 and the drying section 2;

[0057] When the baking and drying all-in-one dryer is used to produce pet food, the slide plate closes to reduce heat loss;

[0058] When the baking and drying integrated dryer is used to produce extruded pet food, the slide plate opens to allow the extruded pet food to be fed in.

[0059] In one embodiment, a discharge baffle 252 is provided on the drying section 2 to prevent the material from the feeding mechanism from leaking into the discharge hopper of the drying section through the end of the conveying component of the drying section.

[0060] To accommodate two feeding methods and complete the drying process for both baked pet food and regular extruded pet food, two feeding points are set up on the drying section 2, located on the return section 25 and the drying section frame 221 adjacent to the return section 25, respectively.

[0061] When producing baked pet food, such as Figure 5 , Figure 6 As shown, upstream material is directly laid flat onto the first conveyor belt 12 through the first material inlet, and reaches the return section assembly 14 along the first conveyor belt 12. As the first conveyor belt 12 moves continuously, the material slides off the end of the first conveyor belt 12. The return section assembly 14 is equipped with a discharge baffle 141, and the drying section frame 221 is equipped with a drop baffle 222. The discharge baffle 141 and the drop baffle 222 are both connected and fixed by fasteners to ensure that the material sliding off the first conveyor belt 12 falls smoothly onto the upper layer of the conveyor belt 26. The material moves along the conveyor belt 26 and reaches the feeding section assembly 21. The material enters the lower layer of the conveyor belt 26 from the end of the conveyor belt 26. The material reaches the return section assembly 25 again along the conveyor belt 26 and finally slides off the end of the conveyor belt 26, passing through the discharge hopper 27 to enter the next process flow.

[0062] When producing regular extruded pet food, the materials do not need to undergo high-temperature baking and shaping, such as... Figure 7As shown, the geared motor 231 drives the spreader hopper 232 to swing back and forth, ensuring that the upstream material falls evenly onto the upper layer of the conveyor belt 26 after being spread by the spreader 23. The spreader 23 and the return section assembly 25 are connected and fixed by the spreader support 24. The end of the return section assembly 25 is provided with a drop baffle 252 to prevent the material from leaking into the discharge hopper 27 from the end of the conveyor belt 26. After completing a drying process along the conveyor belt 26, the final material falls into the discharge hopper 27 from the inside of the conveyor belt 26 at the end of the return section assembly 25 to enter the next process.

[0063] This utility model of an integrated baking and drying machine is designed with two independent feeding methods, enabling a single drying production line to produce both baked pet food and regular extruded pet food.

[0064] This invention can optimize the factory layout by merging the drying section of the pet food baking production line and the ordinary extruded pet food production line, which greatly reduces the requirements for the factory building and can reduce investment costs.

[0065] like Figure 1 As shown, the baking and drying integrated dryer in this embodiment can not only complete the production of baked pet food, but also meet the production needs of ordinary extruded pet food. For enterprises that have both baking pet food and ordinary extruded pet food production needs, this solution can meet the production needs of both materials at the same time with only one drying section, which can optimize the on-site process layout and effectively reduce input costs.

[0066] This embodiment has two material inlets, located at opposite ends of the baking and drying integrated dryer. The two material inlets are independent of each other and do not affect each other, which can respectively meet the feeding and feeding requirements of pet baked food and ordinary extruded pet food.

[0067] When making pet food, the material enters the upper baking machine through the first material inlet. The first material inlet adopts an open design, and the width of the mesh belt is slightly wider than the width of the front forming machine. This ensures that the material from the front forming machine is evenly spread onto the mesh belt of the upper baking machine of the baking and drying integrated machine. After being baked at high temperature in the upper layer, the material enters the lower drying machine. After being dried in the drying machine, the entire baking and drying process of the pet food is completed. The material then enters the next process through the discharge hopper.

[0068] When making regular extruded pet food, the material enters the lower dryer through the second material inlet, without needing to pass through the upper baking machine. The second material inlet adopts a closed spreader structure. The upstream extruded material is evenly spread onto the conveyor belt of the lower dryer through the spreader. After the drying process, the material enters the next process through the discharge hopper.

[0069] The above embodiments are only for illustrating the technical features and concept of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made according to the spirit and implementation of this utility model should be covered within the protection scope of this utility model.

Claims

1. An integrated baking and drying machine, characterized by: include: The baking section is used to rapidly heat and shape the materials; the baking section is equipped with a first material inlet for feeding pet food. The drying section is used for drying and dehydrating the materials; the drying section is located below the baking section, and the discharge end of the drying section extends beyond the discharge end of the baking section and is provided with a second material inlet for feeding the extruded pet food; the second material inlet and the first material inlet are located at opposite ends of the baking and drying integrated dryer.

2. The baking and drying integrated dryer according to claim 1, characterized in that, A feeding mechanism is provided at the second material inlet.

3. The baking and drying integrated dryer according to claim 2, characterized in that, The feeding mechanism is a spreader, used to spread the upstream material evenly and drop it onto the conveying assembly of the drying section; The spreader is mounted on the discharge end of the drying section via a spreader support.

4. The baking and drying integrated dryer according to claim 3, characterized in that, The spreader includes a spreader hopper and a spreader drive, the spreader drive driving the spreader hopper to swing back and forth.

5. The baking and drying integrated dryer according to claim 2, characterized in that, A sliding groove plate is provided between the feeding mechanism and the drying section; When the baking and drying integrated dryer is used to produce pet food, the slide plate closes to reduce heat loss; When the baking and drying integrated dryer is used to produce extruded pet food, the slide plate opens for feeding the extruded pet food.

6. The baking and drying integrated dryer according to claim 2, characterized in that, A material discharge baffle is provided on the drying section to prevent the material from the feeding mechanism from leaking into the discharge hopper of the drying section through the end of the material conveying component of the drying section.

7. The baking and drying integrated dryer according to claim 3, characterized in that, An inspection door is provided at the discharge end of the baking section, and an opening space is provided between the inspection door and the feeding mechanism.

8. The baking and drying integrated dryer according to claim 1, characterized in that, The first material inlet has a fully open structure.

9. The baking and drying integrated dryer according to claim 3, characterized in that, The feeding assembly of the baking section includes a first conveyor belt, the width of which is slightly wider than the width of the upstream forming machine, to prevent material from leaking out from the side of the first conveyor belt.

10. The baking and drying integrated dryer according to claim 1, characterized in that, An insulation layer is installed at the bottom of the baking section where the first material inlet is located to insulate against heat and reduce heat loss.

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