Intelligent data acquisition device of spray dryer

Abstract

The utility model relates to the technical field of spray drying equipment, and discloses an intelligent data acquisition device of a spray dryer, which comprises a first valve and a second valve which are sequentially arranged on a material conveying pipeline along the material conveying direction; the sapphire window is arranged on the material conveying pipeline between the first valve and the second valve; the optical fiber probe is arranged outside the sapphire window; the near-infrared spectrometer is connected with the optical fiber probe; the gravity sensor is arranged at the front end of the second valve in the material conveying direction; and the control module is respectively connected with the first valve, the second valve, the near-infrared spectrometer and the gravity sensor. According to the utility model, the accuracy of near infrared spectrum data can be improved, and the energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of spray drying equipment, in particular to an intelligent data acquisition device for a spray dryer. Background Art

[0002] During the operation of spray drying equipment, the whole process monitoring of the material production process can be realized by collecting spectral data of the material, which is convenient for timely discovering problems occurring in the material production process and improving production efficiency and production qualification rate.

[0003] Currently, most of the methods for collecting spectral data of spray drying equipment are as follows: an infrared instrument is directly installed outside the sapphire window (usually made of sapphire stainless steel) of the spray drying production tank to scan the material to collect spectral data. However, the long-term power consumption of the infrared instrument is relatively large, and problems such as incomplete scanning samples and window accumulation resulting in inaccurate collection of near-infrared spectral data will occur during the monitoring process, thereby affecting the monitoring effect and reducing the production qualification rate.

[0004] In order to solve the problem of window accumulation, in the prior art, there is a method of using multiple cyclone separators to separate the material, but this method cannot accurately control the weight of the material during the production process, and there will still be a problem of low accuracy of the collected near-infrared spectral data. Moreover, the infrared instrument also needs to be always turned on, and the power cost cannot be reduced. Content of the Utility Model

[0005] Therefore, the technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide an intelligent data acquisition device for a spray dryer, which can improve the accuracy of near-infrared spectral data and reduce energy consumption.

[0006] To solve the above technical problem, the utility model provides an intelligent data acquisition device for a spray dryer, including:

[0007] A first valve and a second valve, which are sequentially arranged on the material conveying pipeline along the material conveying direction;

[0008] A sapphire window, which is arranged on the material conveying pipeline between the first valve and the second valve;

[0009] An optical fiber probe, which is arranged outside the sapphire window;

[0010] A near-infrared spectrometer, which is connected to the optical fiber probe;

[0011] A gravity sensor, which is arranged at the front end of the second valve along the material conveying direction;

[0012] The control module is respectively connected to the first valve, the second valve, the near-infrared spectrometer, and the gravity sensor.

[0013] Further, the first valve and the second valve are pneumatic butterfly valves.

[0014] Further, the distance between the first valve and the second valve is 30 - 40 cm.

[0015] Further, the near-infrared spectrometer is connected to the fiber optic probe through an optical fiber.

[0016] Further, the near-infrared spectrometer is arranged at the distal end of the material conveying pipeline.

[0017] Further, the control module is integrated on the outer shell of the near-infrared spectrometer.

[0018] Further, it further includes a material conveying pipeline outlet, which is arranged at the rear end of the second valve along the material conveying direction on the material conveying pipeline.

[0019] Further, it further includes a host computer, and the host computer is connected to the control module and the near-infrared spectrometer.

[0020] Further, the intelligent data acquisition device of the spray dryer is installed at the material conveying pipeline at the rear end of the spray drying tower or the spray drying production tank of the spray dryer.

[0021] Further, the spray drying tower or the spray drying production tank of the spray dryer is arranged at the inlet of the material conveying pipeline of the intelligent data acquisition device of the spray dryer.

[0022] The above technical solution of the present utility model has the following beneficial effects compared with the prior art:

[0023] Through the cooperation of the first valve, the second valve and the gravity sensor, the present utility model realizes precise control of the material weight while preventing material adhesion; on this basis, near-infrared spectrum data is collected by the near-infrared spectrometer, and the accuracy of the collected near-infrared spectrum data is high, which can accurately monitor the whole production process, effectively improve production efficiency and production qualification rate. At the same time, the near-infrared spectrometer does not need to be turned on for a long time under the control of the control module, effectively saving power costs and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model and in conjunction with the attached drawings, wherein:

[0025] Figure 1 It is a schematic structural diagram of a preferred embodiment of the present utility model.

[0026] Figure 2 For Figure 1 The right view of part A in

[0027] Explanation of the reference numerals in the drawings of the specification: 1. Spray drying tower; 2. First valve; 3. Second valve; 4. Sapphire window; 5. Fiber optic probe; 6. Optical fiber; 7. Near-infrared spectrometer; 8. Gravity sensor; 9. Control module; 10. Feeding pipeline; 11. Inlet of the feeding pipeline; 12. Outlet of the feeding pipeline. Specific embodiments

[0028] The present utility model will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the specific embodiments cited are not intended to limit the present utility model.

[0029] Refer to Figure 1 and Figure 2 As shown, the present utility model discloses an intelligent data acquisition device for a spray dryer, which is installed at the feeding pipeline at the rear end of the spray drying tower 1 of the spray dryer or the spray drying production tank; specifically, the spray drying tower 1 of the spray dryer or the spray drying production tank is arranged at the inlet of the feeding pipeline of the intelligent data acquisition device of the spray dryer, and the material enters the feeding pipeline 10 through the spray drying tower 1 or the spray drying production tank. Figure 1 and Figure 2 Taking the spray drying tower 1 as an example for illustration, when the intelligent data acquisition device of the spray dryer is installed at the feeding pipeline at the rear end of the spray drying production tank of the spray dryer, the position where the spray drying production tank is arranged is the same as that of the spray drying tower 1. In this embodiment, the intelligent data acquisition device of the spray dryer includes: a first valve 2 and a second valve 3, the first valve 2 and the second valve 3 are sequentially arranged on the feeding pipeline 10 along the material conveying direction; a sapphire window 4, which is arranged on the feeding pipeline 10 between the first valve 2 and the second valve 3; a fiber optic probe 5, which is arranged outside the sapphire window 4; a near-infrared spectrometer 7, which is connected to the fiber optic probe 5 and collects the spectral data of the material in the feeding pipeline 10 through the fiber optic probe 5; a gravity sensor 8, which is arranged at the front end of the second valve 3 along the material conveying direction; a control module 9, which is respectively connected to the first valve 2, the second valve 3, the near-infrared spectrometer 7, and the gravity sensor 8 in a wired or wireless manner, and the control module 9 controls the working states of the first valve 2, the second valve 3, the near-infrared spectrometer 7, and the gravity sensor 8. Figure 1 The arrow in

[0030] In this embodiment, the first valve 2 and the second valve 3 are pneumatic butterfly valves, and the distance between the first valve 2 and the second valve 3 is 30 - 40 cm.

[0031] In this embodiment, the near-infrared spectrometer 7 is connected to the fiber-optic probe 5 through the optical fiber 6, so as to control the fiber-optic probe 5 to collect the near-infrared spectral data of the material in the feeding pipeline 10.

[0032] In this embodiment, the near-infrared spectrometer 7 is arranged at the far end of the feeding pipeline 10 to avoid the near-infrared spectrometer 7 being affected by the spray dryer.

[0033] In this embodiment, the control module 9 is integrated on the outer shell of the near-infrared spectrometer 7, which can be conveniently controlled without affecting the material production process.

[0034] In this embodiment, the intelligent data acquisition device of the spray dryer further includes a feeding pipeline outlet 12, which is arranged at the rear end of the second valve 3 along the material conveying direction on the feeding pipeline 10.

[0035] In this embodiment, the intelligent data acquisition device of the spray dryer further includes a host computer, which is not shown in Figure 1 and Figure 2 The host computer can be arranged at any position. The host computer is connected to the control module 9 and the near-infrared spectrometer 7 in a wireless or wired manner. By connecting to the control module 9, the host computer controls the working states of the first valve 2, the second valve 3, the near-infrared spectrometer 7, and the gravity sensor 8; by connecting to the near-infrared spectrometer 7, the host computer receives the near-infrared spectral data collected by the near-infrared spectrometer 7 to perform real-time near-infrared spectral data analysis, so as to realize the real-time monitoring of the whole process of material production.

[0036] The intelligent data acquisition device of the spray dryer in this embodiment is installed at the feeding pipeline 10 at the rear end of the spray drying tower or the spray drying production tank of the spray dryer, and can be applied to various spray drying devices. The feeding pipeline 10 at the rear end of the spray drying tower is usually vertically arranged, and the material enters the feeding pipeline 10 of the intelligent data acquisition device of the spray dryer through the spray drying tower 1 or the spray drying production tank. First, the first valve 2 and the gravity sensor 8 are opened under the control of the control module 9, and at the same time the second valve 3 is closed under the control of the control module 9. At this time, the material will accumulate in the feeding pipeline 10 above the second valve 3, and the gravity sensor 8 measures the weight of the accumulated material in real time; until the weight of the material measured by the gravity sensor 8 reaches the preset threshold, the control module 9 controls the first valve 2 to close and controls the near-infrared spectrometer 7 to open. The near-infrared spectrometer 7 controls the fiber-optic probe 5 to collect the near-infrared spectral data of the material in the feeding pipeline 10 at this time through the sapphire window 4; after the near-infrared spectral data is collected, the control module 9 controls the near-infrared spectrometer 7 to close and controls the second valve 3 to open, and the material is conveyed to the feeding pipeline outlet 12.

[0037] The closing and opening times of the first valve 2 can be controlled in real time by the control module 9, or can be preset according to the actual production process of the material, for example, switched on and off every 10 seconds. The preset threshold of the weight of the material measured by the gravity sensor 8 is set according to the actual weight of the material and the production process. In this embodiment, the preset threshold is set to 3 kg. When collecting near-infrared spectral data, the collection frequency and number are preset according to the actual production process. In this embodiment, it is set to collect once every 1.2 seconds and collect 3 times in total.

[0038] Through the cooperation of the first valve 2, the second valve 3 and the gravity sensor 8, the present utility model realizes precise control of the material weight while preventing material adhesion; on this basis, near-infrared spectral data is collected by the near-infrared spectrometer 7. The accuracy of the near-infrared spectral data is high, which can accurately monitor the whole production process, effectively improve the production efficiency and the production qualification rate. At the same time, the near-infrared spectrometer 7 does not need to be turned on for a long time under the control of the control module 9, effectively saving the power cost and reducing the energy consumption.

[0039] Obviously, the above embodiments are only examples for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present utility model.

Claims

1. An intelligent data acquisition device for a spray dryer, characterized in that: include: A first valve and a second valve, wherein the first valve and the second valve are sequentially arranged on a material conveying pipeline along a material conveying direction; A sapphire window is arranged on the material delivery pipeline between the first valve and the second valve; An optical fiber probe is arranged outside the sapphire window; A near-infrared spectrometer connected to the optical fiber probe; A gravity sensor is arranged at the front end of the second valve along the material conveying direction; The control module is connected to the first valve, the second valve, the near-infrared spectrometer and the gravity sensor respectively.

2. The intelligent data acquisition device for a spray dryer according to claim 1, characterized in that: The first valve and the second valve are pneumatic butterfly valves.

3. The intelligent data acquisition device for a spray dryer according to claim 1, characterized in that: The distance between the first valve and the second valve is 30-40 cm.

4. The intelligent data acquisition device for a spray dryer according to claim 1, characterized in that: The near-infrared spectrometer is connected to the optical fiber probe via an optical fiber.

5. The intelligent data acquisition device for a spray dryer according to claim 1, characterized in that: The near infrared spectrometer is arranged at the far end of the material conveying pipeline.

6. The intelligent data acquisition device for a spray dryer according to claim 1, characterized in that: The control module is integrated on the housing of the near-infrared spectrometer.

7. The intelligent data acquisition device for a spray dryer according to claim 1, characterized in that: It also includes a material delivery pipeline outlet, which is arranged on the material delivery pipeline at the rear end of the second valve along the material delivery direction.

8. The intelligent data acquisition device for a spray dryer according to claim 1, characterized in that: It also includes a host computer, which is connected to the control module and the near-infrared spectrometer.

9. The intelligent data acquisition device for a spray dryer according to any one of claims 1 to 8, characterized in that: The intelligent data acquisition device of the spray dryer is installed on the feed pipe at the rear end of the spray drying tower or the spray drying production tank of the spray dryer.

10. The intelligent data acquisition device for a spray dryer according to claim 9, characterized in that: The spray drying tower or spray drying production tank of the spray dryer is arranged at the inlet of the material conveying pipeline of the intelligent data acquisition device of the spray dryer.

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