Split type pilot-scale spray dryer

Abstract

The utility model discloses a kind of split type pilot-plant spray drying machine, belong to spray drying equipment technical field.The equipment is open system, for the pilot drying of aqueous solution material, its core is in modular split design, by physically independent drying tower module, separation collection module and control module composition, each module is connected through detachable pipeline.Drying tower module includes drying tower body, atomizer and heater;The separation collection module includes cyclone separator fixed in drying tower body by support and independently detachable pulse bag filter;The control module is independent cabinet body, for centralized control.The utility model realizes the utmost flexibility of equipment configuration by split layout, and pulse bag filter can be used as optional component and quickly detached, so that system can be switched between high yield mode and economic efficient mode, significantly improve the site adaptability, operation convenience and maintenance convenience in pilot stage.

Description

Technical Field

[0001] This utility model relates to the technical field of spray drying equipment, and in particular to a split-type pilot-scale spray dryer. Background Technology

[0002] During the process scale-up verification (pilot-scale) stage, researchers need a spray dryer with processing capacity between small laboratory equipment and large industrial equipment. Existing pilot-scale equipment is mostly a one-piece design, which, while highly integrated, suffers from insufficient flexibility, fixed footprint, and inconvenient upgrades and maintenance. For example, when processing materials with low viscosity and less stringent yield requirements, a bag filter is not essential, but one-piece equipment cannot easily remove this component. Therefore, a modular, modular device with flexible layout is needed to meet specific process requirements. Utility Model Content

[0003] 1. Technical problem to be solved: The technical problem to be solved by this utility model is to overcome the shortcomings of poor flexibility, fixed configuration and inconvenient maintenance caused by the integrated design of existing pilot spray dryers, and to provide a modular spray dryer that can be arranged separately.

[0004] 2. Technical Solution: To solve the above problems, the present invention adopts the following technical solution.

[0005] A split-type pilot-scale spray dryer is disclosed, which is an open system. The split-type pilot-scale spray dryer consists of a physically independent drying tower module, a separation and collection module, and a control module. The pulse bag filter is an optional component, which can be quickly disassembled or installed by the user according to process requirements, achieving seamless switching between high-yield mode and cost-effective mode. It is specifically optimized for a 5L / h pilot-scale operation.

[0006] The drying tower module includes a drying tower body, a volute air inlet hood fixed to its top, an atomizer installed in the center of the volute air inlet hood, and a heater fixed to one side of the drying tower body by a bracket. The drying tower body stands on the ground by a first support leg and adjustable casters. Its upper part is provided with a viewing window and an observation light, and a vibrating hammer is installed on the side wall of its conical part.

[0007] The separation and collection module includes a pulse bag filter supported on the ground by a second support leg and a cyclone separator fixed to the drying tower by a bracket. The inlet of the cyclone separator is connected to the bottom outlet of the drying tower via a pipe, and its top outlet is connected to the inlet of the pulse bag filter via a first detachable pipe connector. A first collection bottle is connected to the bottom of the cyclone separator via a first quick-release clamp. The pulse bag filter is equipped with a pulse jet solenoid valve at the top, and a second collection bottle is connected to its bottom via a second quick-release clamp. Its outlet is connected to an exhaust gas pipe.

[0008] The control module is a separate cabinet with a control panel integrated on its front panel for centralized control of the entire split-type pilot spray dryer. The air inlet of the heater is connected to the air filter and the fan in sequence via pipes, and the air outlet of the heater is connected to the air inlet of the volute air inlet shroud via pipes.

[0009] Furthermore, the atomizer is an electric centrifugal atomizer or a dual-fluid atomizer.

[0010] Furthermore, when the atomizer is an electric centrifugal atomizer, a reciprocating nozzle is provided at its nozzle for unblocking the nozzle.

[0011] Furthermore, the first detachable pipe connection is a quick-release clamp or flange.

[0012] Furthermore, when the pulse bag filter and the first detachable pipe connector are removed, the top outlet of the cyclone separator can be directly connected to the outside through a dedicated exhaust pipe.

[0013] Furthermore, the rated moisture evaporation capacity of the split-type pilot spray dryer is 5L / h.

[0014] 3. Beneficial effects: Compared with the prior art, the technical solution provided by this utility model has the following advantages: (1) Extremely flexible layout: The three modules can be separated or combined, and users can freely arrange them according to the space conditions of the pilot plant, which greatly improves the site utilization rate.

[0015] (2) Configuration can be selected as needed: The pulse bag filter in the separation and collection module is an optional component. Users can choose the high yield mode (with filter) or the economic mode (without filter) at a processing capacity of 5L / h according to the material characteristics, thereby reducing energy consumption and costs and improving pilot-scale efficiency.

[0016] (3) Easy maintenance: The split structure makes it easier to maintain, clean or upgrade individual modules without interfering with each other.

[0017] (4) Complete functions: It retains all the advanced functions required for the 5L pilot scale, such as vibratory hammer anti-sticking and pulse jet self-cleaning, to ensure process adaptability.

[0018] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention from a first angle (frontal view).

[0020] Figure 2 This is a three-dimensional structural diagram of the present invention from a second angle (rear view).

[0021] Figure 3 This is a three-dimensional structural diagram of the present invention from a third angle (top view).

[0022] Explanation of the labels in the diagram: 1. Drying tower body; 11. First support leg; 12. Adjustable casters; 13. Viewing window; 14. Observation light; 15. Vibrating hammer; 2. Pulse bag filter; 21. Second support foot; 22. Second collection bottle; 23. Pulse jet solenoid valve; 3. Cyclone separator; 31. First collection bottle; 4. Volute air inlet shroud; 5. Atomizer; 6. Heater; 7. Air filter; 8. Fan; 9. Control module. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0024] like Figures 1 to 3 As shown, this utility model is a split-type pilot-scale spray dryer with a rated water evaporation capacity of 5L / h. Its core innovation lies in its modular split design, with each module connected via quick-connect clamps or flanges and dedicated cables. The drying tower module's drying tower body 1 stands on the ground via first support legs 11 and adjusting casters 12. The atomizer 5 is preferably an electric centrifugal atomizer, equipped with an anti-clogging needle. In the separation and collection module, the pulse bag filter 2 is an optional component, which users can disassemble or install according to process requirements, achieving seamless switching between high-yield and cost-effective modes. The control module 9 is an independent cabinet, centrally controlling the operation of the entire split-type pilot-scale spray dryer.

[0025] Modular Structure: The split-type pilot spray dryer is clearly divided into three functionally independent modules: a drying tower module, a separation and collection module, and a control module 9. Each module is connected by pipes with quick-connect clamps or flanges, as well as dedicated cables for connecting the control module 9 to the atomizer 5, heater 6, fan 8, and pulse jet solenoid valve 23, allowing for convenient assembly and disassembly and flexible layout.

[0026] Drying Tower Module: This module is the core of the process execution. The drying tower body 1 is stably supported on the ground by the first support leg 11 and adjusting casters 12. In this embodiment, the atomizer 5 at its top is preferably an electric centrifugal atomizer to meet the atomization requirements under high throughput, and is also equipped with an anti-clogging needle. The vibrating hammer 15 installed on the side wall of its conical part can periodically strike at preset time intervals, or be manually triggered by the operator, effectively dealing with the tower wall adhesion problem that is more likely to occur at pilot scale. This module integrates the heater 6, air filter 7 and fan 8 on its own support, forming a complete, independently movable air supply drying unit.

[0027] Separation and collection module and its options: This is the most direct manifestation of the flexibility of this utility model. The module includes a cyclone separator 3 fixed to the drying tower 1 by a bracket and a pulse bag filter 2 standing on the ground by a second support foot 21. The cyclone separator 3 is fixedly connected to the drying tower 1, but the pulse bag filter 2 can be disassembled independently.

[0028] Standard configuration (high yield mode): The top outlet of the cyclone separator 3 is connected to the inlet of the pulse bag filter 2 via a first detachable pipe connector (such as a quick-release clamp). At this point, most of the finished product is collected by the cyclone separator 3 in the first collection bottle 31 at its bottom, while the extremely fine powder is captured by the pulse bag filter 2 and falls into the second collection bottle 22 at its bottom. The pulse jet solenoid valve 23 at the top of the pulse bag filter 2, through a program set by the control module 9, periodically injects compressed air into the filter bag, shaking off the powder adhering to the filter bag, achieving self-cleaning, and thus ensuring continuous and stable operation of the system in high-efficiency yield mode.

[0029] Simplified Configuration (Economy / Efficiency Mode): When processing materials with low viscosity, where the yield of fine powder is not critical, or when reducing system resistance is desired, the pulse bag filter 2 and its connecting pipes can be quickly removed. In this case, a dedicated exhaust pipe must be directly connected to the top outlet of the cyclone separator 3 to ensure system sealing and exhaust gas removal. All separated finished products are collected in the first collection bottle 31 at its bottom. This "one-button switching" capability allows the split-type pilot spray dryer to precisely adapt to different process requirements.

[0030] Independent Control Module: Control module 9 is housed in a separate cabinet, allowing it to be placed in the most convenient and intuitive location for operation and observation. It integrates all electrical control components, and the panel houses the control panel, display instruments, and operation buttons, enabling centralized control and human-machine interaction for all distributed modules.

[0031] This split design perfectly meets the diverse needs of the pilot plant for the reconfiguration, space adaptation, and process verification of split-type pilot spray dryers.

[0032] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A split-type pilot-scale spray dryer, an open system, for pilot-scale drying of aqueous materials, characterized in that: The split-type pilot spray dryer consists of a drying tower module, a separation and collection module, and a control module (9) that are physically independent of each other. The modules are connected by detachable pipes. The drying tower module includes a drying tower body (1), a volute air inlet hood (4) fixed to the top of the drying tower body (1), an atomizer (5) installed in the center of the volute air inlet hood (4), and a heater (6) fixed to one side of the drying tower body (1) by a bracket; the drying tower body (1) is supported on the ground by a first support foot (11) and an adjusting caster (12), and its upper part is provided with a viewing window (13) and an observation light (14), and a vibrating hammer (15) is installed on the side wall of its conical part. The separation and collection module includes an optional pulse bag filter (2) that stands on the ground via a second support foot (21) and a cyclone separator (3) that is fixed to the drying tower body (1) via a bracket. When the pulse bag filter (2) is removed, the top outlet of the cyclone separator (3) is directly connected to the exhaust gas pipe, forming an economical and efficient mode. The inlet of the cyclone separator (3) is connected to the bottom outlet of the drying tower body (1) via a pipe, and its top outlet is connected to the inlet of the pulse bag filter (2) via a first detachable pipe connector. The bottom of the cyclone separator (3) is connected to a first collection bottle (31) via a first quick-release clamp. The top of the pulse bag filter (2) is provided with a pulse jet solenoid valve (23), and its bottom is connected to a second collection bottle (22) via a second quick-release clamp. Its outlet is connected to the exhaust gas pipe. The control module (9) is an independent cabinet, and its panel is integrated with a control panel for centralized control of the operation of the entire split-type pilot spray dryer. The air inlet of the heater (6) is connected to the air filter (7) and the fan (8) in sequence through a pipe, and the air outlet of the heater (6) is connected to the air inlet of the volute air inlet cover (4) through a pipe.

2. The split-type pilot-scale spray dryer according to claim 1, characterized in that: The atomizer (5) is an electric centrifugal atomizer or a dual-fluid atomizer.

3. A split-type pilot-scale spray dryer according to claim 2, characterized in that: When the atomizer (5) is an electric centrifugal atomizer, a reciprocating needle for unblocking the nozzle is provided at its nozzle.

4. A split-type pilot-scale spray dryer according to claim 1, characterized in that: The first detachable pipe connector is a quick-release clamp or flange.

5. A split-type pilot-scale spray dryer according to claim 1, characterized in that: When the pulse bag filter (2) and the first detachable pipe connector are removed, the top outlet of the cyclone separator (3) can be directly connected to the outside through a dedicated exhaust pipe.

6. A split-type pilot-scale spray dryer according to claim 1, characterized in that: The rated water evaporation capacity of the split-type pilot spray dryer is 5L / h.

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