Fluidized bed granulating and coating machine
By combining air treatment and heating in a fluidized bed granulation and coating machine, and using a multi-stage filter and heating element design, the problems of large equipment footprint and low efficiency are solved, achieving rapid and efficient air treatment.
Patent Information
- Application Number
- CN202520305090.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Existing fluidized bed granulation and coating machines have large air handling units that are inefficient and require separate heaters.
The air treatment and heating are combined, and a multi-stage filter and heating element design is adopted, including a first microporous ceramic filter, a glass fiber filter, a second microporous ceramic filter and an activated carbon filter. The first and second heating elements are set in a small space, and the heating temperature is controlled by a temperature sensor.
It reduces the equipment footprint, improves air handling efficiency, and enables rapid filtration and heating of cold air, with a simple and reasonable structure.
Smart Images
Figure CN223914982U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to agricultural technology field especially relates to a fluidized bed granulation coating machine. BACKGROUND
[0002] The fluidized bed granulation coating machine is used for the granulation and slow-release coating of agricultural fertilizer, can improve the efficiency of the fertilizer and the absorption rate of crops, and has the working principle as follows: the material needing granulation or coating is put into the fluidized bed, at this time, the cold air enters the fluidized bed after multi-stage filtration and heating, and the material is suspended in the air under the action of the airflow to form a fluidized state.
[0003] However, the air entering the fluidized bed needs to be processed first, specifically, after multi-stage filtration, heating is carried out, and the heating also needs to be separately provided with a heater, so that the processing equipment is more, not only increases the occupied area, but also has low efficiency. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a fluidized bed granulation coating machine which reduces the occupied area and improves the efficiency.
[0005] In order to realize the above utility model purpose, the utility model fluidized bed granulation coating machine adopts the following technical scheme:
[0006] A fluidized bed granulation coating machine, including the coating machine body, being equipped with the fluidized bed in the coating machine body, the coating machine body is equipped with the air inlet, the air inlet is connected with the air treatment device through the air inlet pipe, and the fan is arranged on the air inlet pipe; the air treatment device includes the jar body, the bottom of the jar body is equipped with the air inlet, the upper end of the jar body is equipped with the air outlet, and the air outlet is connected with the air inlet pipe; the first microporous ceramic filter core, the glass fiber filter core, the second microporous ceramic filter core and the activated carbon filter filter core are sequentially arranged in the jar body from bottom to top; the first heating cavity is formed between the first microporous ceramic filter core and the glass fiber filter core, and the first heating part is arranged in the first heating cavity; the second heating cavity is formed between the glass fiber filter core and the second microporous ceramic filter core, and the second heating part is arranged in the second heating cavity.
[0007] Preferably, the first heating cavity is equipped with the first temperature sensor, and the second heating cavity is equipped with the second temperature sensor. Through the arrangement of the first temperature sensor and the second temperature sensor, the heating temperature can be controlled.
[0008] Preferably, the jar body is equipped with the third temperature sensor close to the position of the air outlet. Through the arrangement of the third temperature sensor, the temperature of the air outlet position can be detected, and the temperature of the air entering the fluidized bed meets the requirements.
[0009] Preferably, the first heating part and the second heating part are electric heating equipment.
[0010] Preferably, the top of the tank body is provided with a heating layer, the heating layer is internally provided with a heating block, and the heating block is internally provided with a resistance wire.
[0011] Preferably, the inner wall of the tank body is provided with a heat preservation layer.
[0012] Preferably, the air outlet is located above the activated carbon filter element, and the air inlet is located below the first microporous ceramic filter element.
[0013] Compared with the prior art, the air treatment device has the beneficial effects that:
[0014] 1. The air treatment device combines filtering and heating, so that cold air is filtered and heated at the same time, a separate heater is not needed, the occupied area is small, the efficiency of cold air treatment is improved, the overall structure is simple, the design is reasonable, and the air treatment device has practicality.
[0015] 2. The first heating element is arranged in the first heating cavity between the first microporous ceramic filter element and the glass fiber filter element, and the second heating element is arranged in the second heating cavity between the glass fiber filter element and the second microporous ceramic filter element, wherein the first microporous ceramic filter element, the glass fiber filter element and the second microporous ceramic filter element all have a heat insulation function. Since the temperature in a small space rises quickly, the temperature in the first heating cavity and the second heating cavity can be quickly raised under the action of the first heating element and the second heating element, so that the air can be quickly heated while being filtered, the efficiency of air treatment is improved, and the air treatment device has practicality. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 is a structural schematic view of the air treatment device;
[0017] Fig. 2 is a structural schematic view of the air treatment device.
[0018] 1. The air treatment device, 101. The tank body, 102. The activated carbon filter element, 103. The heat preservation layer, 104. The heating layer, 105. The air outlet, 106. The third temperature sensor, 107. The second heating element, 108. The second heating cavity, 109. The first heating element, 110. The first heating cavity, 111. The air inlet, 112. The first microporous ceramic filter element, 113. The first temperature sensor, 114. The glass fiber filter element, 115. The second temperature sensor, 116. The second microporous ceramic filter element, 2. The air inlet pipe, 3. The fan, 4. The air inlet, 5. The coating machine body. DETAILED DESCRIPTION
[0019] The present application will be further clarified by a consideration of the following detailed description.
[0020] As Figs. 1-2 shown, a fluidized bed granulation coating machine, including coating machine body 5, coating machine body 5 is provided with fluidized bed, coating machine body 5 is provided with air inlet 4, air inlet 4 is communicated with air treatment device 1 through air inlet pipe 2, air inlet pipe 2 is provided with fan 3; air treatment device 1 includes tank body 101, the inner wall of tank body 101 is provided with heat preservation layer 103, tank body 101 bottom is provided with air inlet 111, tank body 101 upper end is provided with air outlet 105, air outlet 105 is communicated with air inlet pipe 2; tank body 101 inside is sequentially provided with first microporous ceramic filter core 112, glass fiber filter core 114, second microporous ceramic filter core 116 and activated carbon filter filter core 102 from bottom to top; air outlet 105 is located above activated carbon filter filter core 102, air inlet 111 is located below first microporous ceramic filter core 112; first microporous ceramic filter core 112 and glass fiber filter core 114 form first heating cavity 110, first heating cavity 110 is provided with first heating part 109; glass fiber filter core 114 and second microporous ceramic filter core 116 form second heating cavity 108, second heating cavity 108 is provided with second heating part 107; first heating part 109 and second heating part 107 are electric heating equipment; tank body 101 top is provided with heating layer 104, heating layer 104 is arranged on heat preservation layer 103, heating layer 104 is provided with heating block inside, heating block is provided with resistance wire inside; first heating cavity 110 is provided with first temperature sensor 113, second heating cavity 108 is provided with second temperature sensor 115; tank body 101 is provided with third temperature sensor 106 close to air outlet 105 position.
[0021] The specific working process and principle of the utility model are: the fan 3 works, cold air enters the tank body 101 from the air inlet 111, at the same time, the first heating piece 109 and the second heating piece 107 heat, the cold air entering the tank body 101 flows from bottom to top, is filtered first through the first microporous ceramic filter core 112, then enters the first heating cavity 110, is heated under the action of the first heating piece 109, the air temperature is detected through the first temperature sensor 113, then is filtered through the glass fiber filter core 114, then enters the second heating cavity 108, continues to be heated under the action of the second heating piece 107, the air temperature is detected through the second temperature sensor 115, then passes through the second microporous ceramic filter core 116, finally is filtered through the activated carbon filter core 102 and is discharged from the air outlet 105 into the fluidized bed of the coating machine body 5, wherein the third temperature sensor 106 detects the air temperature at the air outlet 105, if the temperature is low, the heating layer 104 is started to continue heating.
[0022] In the description of the utility model, it needs to be understood that the orientation or position relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0023] In the utility model, unless otherwise expressly specified and limited, the terms "mounting", "setting", "connection", "fixing", "screw connection" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements or the interaction relationship of two elements, unless otherwise expressly limited, the above-mentioned terms in the utility model can be understood according to the specific meaning in the utility model by the person skilled in the art according to the specific situation.
[0024] The above description shows and describes the preferred embodiments of the utility model, as described before, it should be understood that the utility model is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, and can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model conceived in the present application by the above-mentioned teaching or related technology or knowledge.And the modification and change made by the person skilled in the art without departing from the spirit and scope of the utility model should be within the protection scope of the claims attached to the utility model.
Claims
1. A fluidized bed granulation and coating machine, comprising a coating machine body, a fluidized bed disposed within the coating machine body, an air inlet provided in the coating machine body, the air inlet being connected to an air treatment device via an air inlet pipe, and a fan disposed on the air inlet pipe; characterized in that: The air handling device includes a tank with an air inlet at the bottom and an air outlet at the top, the air outlet being connected to an air inlet pipe. Inside the tank, from bottom to top, are arranged a first microporous ceramic filter, a glass fiber filter, a second microporous ceramic filter, and an activated carbon filter. A first heating chamber is formed between the first microporous ceramic filter and the glass fiber filter, and a first heating element is disposed within the first heating chamber. A second heating chamber is formed between the glass fiber filter and the second microporous ceramic filter, and a second heating element is disposed within the second heating chamber.
2. The fluidized bed granulation and coating machine according to claim 1, characterized in that: The first heating chamber is equipped with a first temperature sensor, and the second heating chamber is equipped with a second temperature sensor.
3. The fluidized bed granulation and coating machine according to claim 1, characterized in that: A third temperature sensor is installed on the tank body near the air outlet.
4. The fluidized bed granulation and coating machine according to claim 1, characterized in that: Both the first heating element and the second heating element are electric heating devices.
5. The fluidized bed granulation and coating machine according to claim 3, characterized in that: The top of the tank is provided with a heating layer, and a heating block is provided inside the heating layer. The heating block is provided with a resistance wire.
6. The fluidized bed granulation and coating machine according to claim 1, characterized in that: The inner wall of the tank is provided with a heat insulation layer.
7. The fluidized bed granulation and coating machine according to claim 1, characterized in that: The air outlet is located above the activated carbon filter element, and the air inlet is located below the first microporous ceramic filter element.