Fluidized bed

Abstract

The utility model belongs to the technical field of fluidized beds, and particularly provides a fluidized bed which comprises a reactor body, a blowing-type feeding mechanism, a spraying mechanism and an air inducing mechanism, a spraying opening of the spraying mechanism is formed in the middle of the reactor body; the blowing-type feeding mechanism is arranged below the reactor body; and the air inducing mechanism is arranged above the reactor body. Materials are input into the reactor body through air blowing, the materials are attached to the surfaces of wet particles in time, material layer amplification granulation and coating are completed, the material and wet particle combination efficiency is improved, meanwhile, a spraying opening of the spraying mechanism is formed in the center of the reactor body, the contact area of mist and the materials is increased, the granulation efficiency is improved, and the production cost is reduced. The loss is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fluidized beds, in particular to a fluidized bed. Background Art

[0002] A fluidized bed is a reactor that uses gas or liquid to pass through a granular solid layer to put the solid particles into a suspended motion state and carry out a gas-solid phase reaction process or a liquid-solid phase reaction process.

[0003] In the fluidized bed in the related technology, the granulation material is put into the fluidized bed, and the cold air enters from the heating chamber at the rear of the main machine. After being heated to the required temperature of the inlet air by the primary and secondary filters and the heater, it enters the fluidized bed. The powder is fluidized in the bed, and the granulation binder is sent to the double-fluid atomizer by the infusion pump, and sprayed onto the fluidized material after atomization. The powders are bridged with each other, aggregated into granules and grow, and the moisture is volatilized and taken out of the machine by the exhaust air through the bag. The above-mentioned fluidized bed has the following problems: if the material is directly put into the fluidized bed, the contact between the mist and the split body will be insufficient, which reduces the combination efficiency. At the same time, a bag is set at the exhaust of the fluidized bed, and the moisture absorption of the material will cause the bag to be blocked.

[0004] The above problems need to be solved urgently. Utility Model Content

[0005] The utility model aims to provide a fluidized bed.

[0006] In order to solve the above technical problems, the utility model provides a fluidized bed, comprising:

[0007] Reactor body, air-blast feeding mechanism, spray mechanism and air-inducing mechanism;

[0008] The spray port of the spray mechanism is arranged in the middle of the reactor body;

[0009] The blast-type feeding mechanism is arranged below the reactor body;

[0010] The air inducing mechanism is arranged above the reactor body.

[0011] Furthermore, the blast-type feeding mechanism is suitable for feeding materials into the reactor body by blasting.

[0012] Furthermore, the spray port of the spray mechanism is arranged above the discharge port of the blast-type feeding mechanism.

[0013] Furthermore, the blast feeding mechanism comprises:

[0014] A blower, a filter, a first heating assembly, and a discharge pipe;

[0015] The blower, the filter, the first heating assembly and the discharge pipe are connected in sequence;

[0016] The discharge port of the discharge pipe extends into the middle of the reactor body.

[0017] Furthermore, a material feed port is provided in the discharge pipe.

[0018] Furthermore, a hot air inlet and a second heating assembly are provided at the bottom of the reactor body;

[0019] The second heating component heats the air and then inputs the heated air into the reactor body.

[0020] Furthermore, the heating temperature of the first heating component is higher than the heating temperature of the second heating component.

[0021] Further, the spray mechanism comprises: a double-channel spray gun, a first pipeline and a second pipeline;

[0022] The first pipeline and the second pipeline are both connected to the dual-channel spray gun;

[0023] The first conduit is suitable for conveying compressed air;

[0024] The second conduit is adapted to deliver an adhesive.

[0025] Furthermore, the induced draft mechanism includes: an induced draft fan and a cyclone separator;

[0026] The air inlet of the cyclone separator is connected to the air outlet of the reactor body;

[0027] The induced draft fan is in communication with the cyclone separator.

[0028] Furthermore, the discharge port at the bottom of the cyclone separator is connected to the reactor body or to the blast-type feeding mechanism.

[0029] The beneficial effect of the utility model is that the utility model provides a fluidized bed, including: a reactor body, a blast-type feeding mechanism, a spray mechanism and an air-inducing mechanism; the spray port of the spray mechanism is arranged in the middle of the reactor body; the blast-type feeding mechanism is arranged below the reactor body; the air-inducing mechanism is arranged above the reactor body. The material is input into the reactor body by blasting, so that the material adheres to the surface of the wet particles in time, the material layer is enlarged into granules and coated, and the efficiency of combining the material with the wet particles is improved. At the same time, the spray port of the spray mechanism is arranged in the central part of the reactor body, thereby increasing the contact area between the mist and the material, improving the granulation efficiency and reducing the loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0031] Figure 1 It is a structural principle diagram of the fluidized bed provided in this embodiment.

[0032] In the figure: 110, reactor body; 111, hot air inlet; 112, second heating component; 120, blower feeding mechanism; 121, blower; 122, filter; 123, first heating component; 124, discharge pipe; 1241, material feed port; 130, spray mechanism; 131, dual-channel spray gun; 140, induced draft mechanism; 141, induced draft fan; 142, cyclone separator. DETAILED DESCRIPTION

[0033] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0034] For examples, see Figure 1 This embodiment provides a fluidized bed, including: a reactor body 110, a blast-type feeding mechanism 120, a spray mechanism 130 and an air-inducing mechanism 140; the spray port of the spray mechanism 130 is arranged in the middle of the reactor body 110; the blast-type feeding mechanism 120 is arranged below the reactor body 110; the air-inducing mechanism 140 is arranged above the reactor body 110. The material is input into the reactor body 110 by blasting, so that the material is attached to the surface of the wet particles in time, the material layer is enlarged into granules and coated, and the efficiency of combining the material with the wet particles is improved. At the same time, the spray port of the spray mechanism 130 is arranged in the central part of the reactor body 110, so as to increase the contact area between the mist and the material, improve the granulation efficiency, and reduce the loss.

[0035] The spray port of the spray mechanism 130 is arranged above the discharge port of the blast-type feeding mechanism 120. The spray port is arranged above the discharge port of the blast-type feeding mechanism 120, thereby increasing the contact time and efficiency between the mist and the material and improving the granulation efficiency.

[0036] The structure of the blast feeding mechanism 120 is described below:

[0037] In this embodiment, the blast feeding mechanism 120 includes: a blower 121, a filter 122, a first heating assembly 123 and a discharge pipe 124; the blower 121, the filter 122, the first heating assembly 123 and the discharge pipe 124 are connected in sequence; the discharge port of the discharge pipe 124 extends into the middle of the reactor body 110. By providing the filter 122, it is ensured that clean airflow enters the reactor body 110, and by providing the first heating assembly 123, the airflow is heated, so that the material is in a locally high temperature state, and the combination of the material and the wet particles is accelerated.

[0038] Specifically, the discharge port of the discharge pipe 124 is arranged below the spray port of the spray mechanism 130 .

[0039] In order to facilitate the input of materials, in the present embodiment, a material feed port 1241 (not shown) is provided in the discharge pipe 124 .

[0040] In this embodiment, a hot air inlet 111 and a second heating component 112 are disposed at the bottom of the reactor body 110 ; the second heating component 112 heats the air and then inputs the heated air into the reactor body 110 .

[0041] The heating temperature of the first heating component 123 is higher than the heating temperature of the second heating component 112. The spray port of the spray mechanism 130 is set at the center of the reactor body 110, and the humidity near it is relatively high. After the material is heated at high temperature by the first heating component 123, it is sent to this area by airflow for granulation. It can be dried quickly by high temperature without damaging the heat-sensitive material. The humidity around the spray port of the spray mechanism 130 is relatively low. In order not to damage the heat-sensitive material, low-temperature drying is performed by the second heating component 112 to improve the drying effect of the material.

[0042] In this embodiment, the spray mechanism 130 includes: a dual-channel spray gun 131, a first pipeline and a second pipeline; the first pipeline and the second pipeline are both connected to the dual-channel spray gun 131; the first pipeline is suitable for conveying compressed air; the second pipeline is suitable for conveying adhesive.

[0043] In this embodiment, the induced draft mechanism 140 includes: an induced draft fan 141 and a cyclone separator 142; the air inlet of the cyclone separator 142 is connected to the air outlet of the reactor body 110; the induced draft fan 141 is connected to the cyclone separator 142. The cyclone separator 142 is provided to separate the ungranulated or too small particles introduced by the induced draft fan 141, and the discharge port at the bottom of the cyclone separator 142 is connected to the reactor body 110 or the blast feeding mechanism 120, so that the ungranulated or too small particles enter the reactor body 110 again for granulation, thereby reducing the loss of materials.

[0044] In summary, the utility model provides a fluidized bed, including: a reactor body 110, a blast-type feeding mechanism 120, a spray mechanism 130 and an air-inducing mechanism 140; the spray port of the spray mechanism 130 is arranged in the middle of the reactor body 110; the blast-type feeding mechanism 120 is arranged below the reactor body 110; the air-inducing mechanism 140 is arranged above the reactor body 110. The material is input into the reactor body 110 by blasting, so that the material is attached to the surface of the wet particles in time, the material layer is enlarged into granules and coated, and the efficiency of combining the material with the wet particles is improved. At the same time, the spray port of the spray mechanism 130 is arranged in the central part of the reactor body 110, so as to increase the contact area between the mist and the material, improve the granulation efficiency, and reduce the loss.

[0045] All devices (parts without specific structure) selected in this application are universal standard parts or parts known to those skilled in the art, and their structures and principles can be known by those skilled in the art through technical manuals or conventional experimental methods. In addition, the software programs involved in this application are all prior art, and this application does not involve any improvement to the software programs.

[0046] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0048] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0049] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0050] In addition, each functional unit in each embodiment of the present utility model may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0051] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A fluidized bed, characterized in that: include: Reactor body, air-blast feeding mechanism, spray mechanism and air-inducing mechanism; The spray port of the spray mechanism is arranged in the middle of the reactor body; The blast-type feeding mechanism is arranged below the reactor body; The air inducing mechanism is arranged above the reactor body.

2. The fluidized bed according to claim 1, characterized in that The air-blast feeding mechanism is suitable for feeding materials into the reactor body by air-blast.

3. The fluidized bed according to claim 1, characterized in that The spray port of the spray mechanism is arranged above the discharge port of the air-blast feeding mechanism.

4. The fluidized bed according to claim 1, characterized in that The blast feeding mechanism comprises: A blower, a filter, a first heating assembly, and a discharge pipe; The blower, the filter, the first heating assembly and the discharge pipe are connected in sequence; The discharge port of the discharge pipe extends into the middle of the reactor body.

5. The fluidized bed according to claim 4, characterized in that A material feed port is arranged in the discharge pipe.

6. The fluidized bed according to claim 4, characterized in that The bottom of the reactor body is provided with a hot air inlet and a second heating assembly; The second heating component heats the air and then inputs the heated air into the reactor body.

7. The fluidized bed according to claim 6, characterized in that A heating temperature of the first heating component is higher than a heating temperature of the second heating component.

8. The fluidized bed according to claim 1, wherein The spray mechanism comprises: a double-channel spray gun, a first pipeline and a second pipeline; The first pipeline and the second pipeline are both connected to the dual-channel spray gun; The first conduit is suitable for conveying compressed air; The second conduit is adapted to deliver an adhesive.

9. The fluidized bed according to claim 1, characterized in that The induced draft mechanism comprises: an induced draft fan and a cyclone separator; The air inlet of the cyclone separator is connected to the air outlet of the reactor body; The induced draft fan is in communication with the cyclone separator.

10. The fluidized bed according to claim 9, characterized in that The discharge port at the bottom of the cyclone separator is communicated with the reactor body or with the blast-type feeding mechanism.

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