Chicken essence fluidized drying bed with heat energy recovery function

Abstract

The utility model provides a fluidized drying bed with a heat energy recovery function for chicken essence. The fluidized drying bed comprises a first-section drying system, a second-section drying system and a heat energy recovery system, an air outlet of the second-section drying system is communicated with an air inlet of the first-section drying system through the heat energy recovery system; the heat energy recovery system comprises a hot air return pipe, and a first air valve, a return air filter box, a first air inducing motor and an electric valve are sequentially arranged on the hot air return pipe in the air guiding direction. According to the fluidized drying bed disclosed by the utility model, the heat energy recovery system is arranged between the first-stage drying system and the second-stage drying system, so that the 90-degree waste gas with lower humidity after the second-stage fluidization is introduced into the first-stage fluidized bed to be reused, the effect of waste heat recovery is realized, and the technical effects of energy conservation and emission reduction are further achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of seasoning drying equipment, and in particular to a fluidized bed drying device for chicken essence with heat recovery. Background Technology

[0002] In the entire chicken bouillon production process, the fluidized bed drying stage is the most energy-intensive. Steam heat exchange is required to dry the material. The drying process is as follows: the material first enters a primary fluidized bed for drying; the exhaust gas from this stage has a high moisture content, making heat recovery unsuitable. The material after primary drying enters a secondary fluidized bed for further drying and cooling. For both stages, fresh air at room temperature (30°C) is first heated to 120°C via a steam heat exchanger before being blown into the drying fluidized bed. This process reduces the moisture content of the chicken bouillon seasoning raw materials from 15% to below 0.8%. The exhaust gas temperature after moisture absorption is approximately 90°C; after passing through a cyclone dust collector, it is discharged into the atmosphere, resulting in energy waste and environmental pollution. This is the biggest problem and drawback of the drying system. Utility Model Content

[0003] The purpose of this invention is to propose a fluidized bed dryer for chicken essence that can achieve two-stage heat energy recovery, thereby reducing environmental pollution and achieving energy saving.

[0004] To achieve the above objectives, this utility model proposes a fluidized bed dryer for chicken essence with heat recovery, comprising a primary drying system, a secondary drying system, and a heat recovery system;

[0005] The air outlet of the second-stage drying system is connected to the air inlet of the first-stage drying system through a heat recovery system.

[0006] The heat recovery system includes a reheat air duct, on which the following components are arranged sequentially along the airflow direction: a first air valve, a return air filter box, a first induced draft motor, and an electric valve.

[0007] Furthermore, a drying system includes a vibrating fluidized bed, a first air inlet system, and a first exhaust system;

[0008] The first air inlet system is connected to the air inlet of a section of vibrating fluidized bed, and the first exhaust system is connected to the air outlet of a section of vibrating fluidized bed.

[0009] Furthermore, the two-stage drying system includes a two-stage vibrating fluidized bed, a second air inlet system, and a second exhaust system;

[0010] The second air inlet system is connected to the air inlet of the two-stage vibrating fluidized bed, and the second exhaust system is connected to the air outlet of the two-stage vibrating fluidized bed.

[0011] The discharge port of the first stage vibrating fluidized bed is connected to the feed port of the second stage vibrating fluidized bed.

[0012] Furthermore, both the first-stage and second-stage vibrating fluidized bed dryers are vibrated by a vibrating motor installed at the bottom.

[0013] Furthermore, both the first and second air intake systems include multiple air intake ducts, and each air intake duct is equipped with an air intake filter box, a second induced draft motor, a heat exchanger, and an air valve according to the air guiding direction.

[0014] Furthermore, on the air intake duct of the first air intake system, the air outlet of the heat recovery system is located after the air intake filter box.

[0015] Furthermore, both the first and second exhaust systems include an exhaust duct, and each exhaust duct is equipped with a dust collector, a third induced draft motor, and an odor remover according to the airflow direction.

[0016] Furthermore, the third exhaust fan of the second exhaust system is connected to the air inlet of the heat recovery system.

[0017] Compared with the prior art, the advantages of this utility model are as follows: the fluidized bed of this utility model sets up a heat recovery system between the first-stage drying system and the second-stage drying system, so as to introduce the 90-degree waste gas with low humidity after the second-stage fluidization into the first-stage fluidized bed for reuse, thereby realizing the effect of waste heat recovery and achieving the technical effect of energy saving and emission reduction. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the fluidized bed for chicken essence with heat recovery in this embodiment of the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be further described below.

[0020] like Figure 1 As shown, this utility model proposes a fluidized bed dryer for chicken essence with heat recovery, which consists of a first-stage drying system, a second-stage drying system and a heat recovery system.

[0021] The drying system consists of a vibrating fluidized bed 1, a first air inlet system, and a first air outlet system. The first air inlet system is connected to the air inlet of the vibrating fluidized bed 1, and the first air outlet system is connected to the air outlet of the vibrating fluidized bed 1.

[0022] The second stage consists of a two-stage vibrating fluidized bed 10, a second air inlet system, and a second air outlet system. The second air inlet system is connected to the air inlet of the two-stage vibrating fluidized bed 10, and the second air outlet system is connected to the air outlet of the two-stage vibrating fluidized bed 10.

[0023] In this embodiment, as Figure 1 As shown, the overall structure of the first-stage vibrating fluidized bed 1 and the second-stage vibrating fluidized bed 10 is the same. Both the first-stage vibrating fluidized bed 1 and the second-stage vibrating fluidized bed 10 are vibrated by a vibrating motor installed at the bottom. The discharge port of the first-stage vibrating fluidized bed 1 is connected to the feed port of the second-stage vibrating fluidized bed 10.

[0024] In this embodiment, as Figure 1 As shown, both the first and second air intake systems include three air intake pipes. Each air intake pipe is equipped with an air intake filter box 2, a second induced draft motor 3, a heat exchanger 4, and an air valve in accordance with the air guiding direction.

[0025] Both the first and second exhaust systems include an exhaust duct, and the exhaust duct is equipped with a dust collector 5, a third induced draft motor 6, and an odor remover 7 according to the air guiding direction.

[0026] In this embodiment, the heat recovery system includes a regenerative air duct. The regenerative air duct is provided with the following components in sequence along the air guiding direction: a first air valve, a return air filter box 8, a first induced draft motor 9, and an electric valve. The air inlet of the regenerative air duct is connected to the air outlet after the third induced draft motor 6 of the second exhaust system, and the air outlet of the return air duct is connected to the air inlet duct after the air inlet filter box 2 of the first air inlet system.

[0027] The working principle of this novel fluidized bed dryer for chicken essence is as follows: After the chicken essence enters the first section of the vibrating fluidized bed dryer 1, the second induced draft motor 3 of the first air intake system starts, and the 25°C air enters the filter box and is then drawn into the heat exchanger 4. The heat exchange forms 120°C hot air which is blown into the first section of the vibrating fluidized bed dryer 1 for a first stage of drying. The dried air is then drawn into the dust collector 5 of the first exhaust system and, driven by the third induced draft motor 6, enters the deodorizer 7 before being discharged from the system. After the chicken essence is dried in one stage, it enters the second stage vibrating fluidized bed 10 from the first stage vibrating fluidized bed 1. Then, the second induced draft motor 3 of the second air intake system starts, and the 25°C air enters the filter box and is drawn into the heat exchanger 4. After heat exchange, the 120°C hot air is blown into the first stage vibrating fluidized bed 1 for one stage of drying. The dried air is drawn into the dust collector 5 of the first exhaust system and then enters the deodorizer 7 driven by the third induced draft motor 6. After that, it is discharged out of the system. Part of it enters the return air filter box 8 for filtration and then enters the first air intake system of the first stage vibrating fluidized bed 1 driven by the first induced draft motor 9. It is recycled and used as the heat source for the next drying of chicken essence in the first stage vibrating fluidized bed 1.

[0028] The above are merely preferred embodiments of this utility model and do not constitute any limitation on this utility model. Any equivalent substitutions or modifications made by those skilled in the art to the technical solutions and contents disclosed in this utility model without departing from the scope of the technical solutions of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A fluidized bed dryer for chicken essence with heat recovery, characterized in that, It includes a primary drying system, a secondary drying system, and a heat recovery system; The air outlet of the two-stage drying system is connected to the air inlet of the first-stage drying system through the heat recovery system. The heat recovery system includes a regenerative air duct, on which the following components are arranged sequentially along the airflow direction: a first air valve, a return air filter box, a first induced draft motor, and an electric valve.

2. The fluidized bed drying system for chicken essence with heat recovery according to claim 1, characterized in that, The drying system includes a vibrating fluidized bed, a first air inlet system, and a first exhaust system. The first air inlet system is connected to the air inlet of the section of vibrating fluidized bed, and the first exhaust system is connected to the air outlet of the section of vibrating fluidized bed.

3. The fluidized bed drying system for chicken essence with heat recovery according to claim 2, characterized in that, The two-stage drying system includes two-stage vibrating fluidized bed drying, a second air inlet system, and a second exhaust system. The second air inlet system is connected to the air inlet of the two-stage vibrating fluidized bed, and the second exhaust system is connected to the air outlet of the two-stage vibrating fluidized bed. The discharge port of the first-stage vibrating fluidized bed is connected to the feed port of the second-stage vibrating fluidized bed.

4. The fluidized bed drying system for chicken essence with heat recovery according to claim 3, characterized in that, Both the first-stage vibrating fluidized bed and the second-stage vibrating fluidized bed are vibrated by a vibrating motor installed at the bottom.

5. The fluidized bed drying system for chicken essence with heat recovery according to claim 3, characterized in that, Both the first and second air intake systems include multiple air intake ducts. Each air intake duct is equipped with an air intake filter box, a second induced draft motor, a heat exchanger, and an air valve according to the air guiding direction.

6. The fluidized bed drying system for chicken essence with heat recovery according to claim 5, characterized in that, On the air inlet pipe of the first air inlet system, the air outlet of the heat recovery system is located after the air inlet filter box.

7. The fluidized bed drying system for chicken essence with heat recovery according to claim 3, characterized in that, Both the first exhaust system and the second exhaust system include an air outlet duct, and the air outlet duct is equipped with a dust collector, a third induced draft motor and an odor remover according to the air guiding direction.

8. The fluidized bed dryer for chicken essence with heat recovery according to claim 7, characterized in that, The third exhaust fan of the second exhaust system is connected to the air inlet of the heat recovery system.

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