Intelligent temperature control medicine calcining furnace

By designing an intelligent temperature-controlled calcining furnace, which combines resistance wire heating elements and infrared heating plates with a PID controller, the problem of inaccurate temperature control in traditional calcining furnaces is solved, achieving uniform calcination of Chinese medicinal materials and stability of their efficacy.

CN224285408UActive Publication Date: 2026-05-26CHONGQING JIKAI PHARMACEUTICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING JIKAI PHARMACEUTICAL CO LTD
Filing Date
2025-07-14
Publication Date
2026-05-26

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Abstract

The utility model belongs to the technical field of traditional Chinese medicine processing equipment, and particularly relates to an intelligent temperature control medicine calcining furnace which comprises a movable base, a medicine calcining box body connected to the upper portion of the base, a medicine calcining box cover connected with the medicine calcining box body and a heating element. The heating element comprises a plurality of resistance wire heating elements and an infrared heating plate, the plurality of resistance wire heating elements are uniformly distributed below the tray, and the infrared heating plate is arranged on the medicine calcining box cover; the temperature control system comprises a temperature sensor set, a PID temperature controller and a heating element control circuit, the temperature sensor set is used for monitoring the temperature of the medicine calcining furnace, the PID temperature controller receives monitoring data of the temperature sensor set, and the power of the resistance wire heating element and the power of the infrared heating plate are adjusted through the heating element control circuit.
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Description

Technical Field

[0001] This utility model relates to the technical field of Chinese medicinal material processing equipment, specifically to an intelligent temperature-controlled calcining furnace. Background Technology

[0002] Calcination of Chinese medicinal herbs is a crucial step in the processing of traditional Chinese medicine. High-temperature treatment can alter the physical and chemical properties of herbs, enhancing or changing their efficacy. However, traditional calcining furnaces have several problems. On the one hand, temperature control is not precise enough, relying heavily on operator experience for adjustment, making it difficult to ensure consistent temperature for each calcination. This can easily lead to over- or under-calcination, affecting the efficacy of the herbs. On the other hand, the lack of real-time monitoring and feedback mechanisms makes it impossible to adjust temperature and time parameters promptly based on the type and quantity of herbs, as well as the actual conditions during the calcination process. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide an intelligent temperature-controlled calcining furnace to solve the technical problems mentioned in the background art.

[0004] This utility model is achieved through the following technical solution:

[0005] A smart temperature-controlled calcining furnace includes a movable base, a calcining box connected to the upper part of the base, and a calcining box cover connected to the calcining box. The interior of the calcining box is provided with multiple trays for holding Chinese medicinal materials, and also includes heating elements. The heating elements include multiple resistance wire heating elements and an infrared heating plate. The multiple resistance wire heating elements are evenly distributed under the trays, and the infrared heating plate is disposed on the calcining box cover.

[0006] The temperature control system includes a temperature sensor group, a PID temperature controller, and a heating element control circuit. The temperature sensor group is used to monitor the temperature of the calcining furnace. The PID temperature controller receives the monitoring data from the temperature sensor group and adjusts the power of the resistance wire heating element and the infrared heating plate through the heating element control circuit.

[0007] Furthermore, the calcination box includes a rectangular lower part and a three-sided upper part, the calcination box cover is hinged to the upper part of the box, and the temperature sensor group includes multiple temperature sensors installed on the upper part of the box.

[0008] Furthermore, the bottom of the calcination box is provided with a slag receiving tray that can be pulled out along the side of the calcination box.

[0009] Furthermore, the heating element control circuit includes a silicon controlled rectifier (SCR) voltage regulator, and the heating element is connected to the power supply through the SCR voltage regulator.

[0010] Furthermore, a placement platform is fixedly connected to the side of the calcination box, a handle is connected to the outside of the calcination box cover, and casters are connected to the bottom of the base.

[0011] Furthermore, there are two trays, namely a first tray and a second tray, wherein the first tray is placed on the top edge protrusion at the bottom of the box, and a support frame for supporting the second tray is provided on the inner wall of the upper part of the box.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. Multiple sets of resistance wire heating elements are evenly distributed inside the calcination chamber to provide basic heat. An infrared heating plate is installed on the top of the calcination chamber lid. Infrared heating enables rapid and deep heating of Chinese medicinal materials, improving heating efficiency and uniformity. The heating elements are connected to the power supply via an intelligent variable frequency thyristor voltage regulator, thereby achieving precise control of the temperature inside the calcination furnace.

[0014] 2. By installing multiple high-precision temperature sensors at different locations on the upper part of the chamber, the temperature distribution inside the furnace can be monitored in real time and comprehensively, and the temperature signals are transmitted digitally to the intelligent PID temperature controller. The PID temperature controller has a built-in database of calcination processes for various Chinese medicinal herbs. Operators can select the corresponding preset calcination temperature range and heating / cooling curves according to different types of Chinese medicinal herbs, or customize parameters according to actual needs. The PID temperature controller uses an advanced fuzzy PID algorithm to compare the received temperature signal with the set value, and quickly and accurately adjusts the power of the heating element through the heating element control circuit to keep the furnace temperature within the set range.

[0015] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention (view 1);

[0017] Figure 2 This is a three-dimensional structural schematic diagram of the present invention (viewpoint two);

[0018] Figure 3 For the disassembly and assembly of this utility model Figure 1 ;

[0019] Figure 4 For the disassembly and assembly of this utility model Figure 2 ;

[0020] Figure 5 This is a flowchart of the present invention;

[0021] The reference numerals in the accompanying drawings include:

[0022] 100. Base; 101. Calcining box body; 1011. Control panel; 1012. Calcining box main body; 1013. Support frame; 1014. Through slot; 102. Calcining box cover; 103. Handle; 104. Placement table; 105. Casters;

[0023] 201. First tray; 202. Second tray; 3. Temperature sensor; 4. Slag receiving tray; 5. Resistance wire heating element; 6. Infrared heating plate. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0029] Please see Figure 1-4 This utility model provides a technical solution: an intelligent temperature-controlled calcining furnace, including a movable base 100, a calcining box 101 connected to the upper part of the base 100, and a calcining box cover 102 connected to the calcining box 101. The calcining box 101 is provided with multiple trays for holding Chinese medicinal materials, and also includes heating elements, including multiple resistance wire heating elements 5 and infrared heating plates 6. The multiple resistance wire heating elements 5 are evenly distributed under the trays, and the infrared heating plates 6 are disposed on the calcining box cover 102.

[0030] The temperature control system includes a temperature sensor group, a PID temperature controller, and a heating element control circuit. The temperature sensor group is used to monitor the temperature of the calcining furnace. The PID temperature controller receives the monitoring data from the temperature sensor group and adjusts the power of the resistance wire heating element 5 and the infrared heating plate 6 through the heating element control circuit.

[0031] The temperature sensor is responsible for acquiring temperature data in real time and transmitting the temperature signal to the PID temperature controller. In some optional implementations, the temperature sensor is a platinum resistance temperature sensor, which transmits the resistance signal that changes with temperature to the signal input terminal of the PID temperature controller through wires, providing a basis for temperature control.

[0032] Specifically, after receiving the signal from the temperature sensor, the temperature controller compares it with the set temperature, processes it using its internal PID algorithm, and outputs a control signal to the heating element control circuit. Specifically, the intelligent PID temperature controller calculates the deviation and then outputs an adjustment signal to the signal receiving module of the heating element control circuit.

[0033] In the heating element control circuit, the power regulation module, such as an intelligent variable frequency silicon controlled rectifier (SCR) voltage regulator, receives signals from the control circuit and adjusts the output voltage or current to control the power of the heating element. The voltage or current regulated by the voltage regulator is directly supplied to the heating element to drive it to work. Heating elements like resistance wire heating elements and infrared heating plates generate corresponding heat based on the input electrical parameters to achieve the heating function.

[0034] The calcination box 101 includes a rectangular lower part and a three-sided upper part. The calcination box cover 102 is hinged to the upper part of the box and can be opened and closed. The temperature sensor group includes multiple temperature sensors 3 installed on the upper part of the box.

[0035] The bottom of the calcination box 101 is provided with a slag receiving plate 4 that can be pulled out along the side of the calcination box. The slag receiving plate 4 is movably inserted into the through groove 1014 opened at the bottom of the calcination box 101.

[0036] The heating element control circuit includes a thyristor voltage regulator, through which the heating element is connected to the power supply.

[0037] The calcination box 101 is fixedly connected to a placement platform 104 on its side, the calcination box cover 102 is connected to a handle 103 on its outside, and the base 100 is connected to a caster 105 on its bottom.

[0038] There are two trays, namely the first tray 201 and the second tray 202. The first tray 201 is placed on the top edge protrusion at the bottom of the box, and the support frame 1013 supporting the second tray 202 is provided on the inner wall of the upper part of the box.

[0039] Working principle: A temperature sensor monitors the temperature at different locations within the furnace in real time and transmits the temperature signal to an intelligent PID temperature controller. The temperature controller compares the received temperature signal with a preset temperature value and a heating curve. If the temperature is lower than the set value, the power of the heating element is increased through the heating element control circuit; if the temperature is higher than the set value, the power of the heating element is decreased, causing the furnace temperature to rise according to the preset heating curve. Once the furnace temperature reaches the preset calcination temperature, the PID temperature controller controls the heating system to maintain that temperature, allowing the medicinal materials to be calcined at the set temperature. Multiple sets of resistance wire heating elements are evenly distributed inside the calcination chamber 101 to provide basic heat. An infrared heating plate is installed on the top of the calcination chamber cover 102. Infrared heating enables rapid and deep heating of the medicinal materials, improving heating efficiency and uniformity. The slag and waste generated during calcination can be collected through the slag receiving tray 4 below for convenient centralized processing.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An intelligent temperature-controlled calcining furnace, comprising a movable base (100), a calcining chamber (101) connected to the upper part of the base (100), and a calcining chamber cover (102) connected to the calcining chamber (101), characterized in that: The interior of the calcination box (101) is provided with multiple trays for holding Chinese medicinal materials, and also includes heating elements. The heating elements include multiple resistance wire heating elements (5) and infrared heating plates (6). The multiple resistance wire heating elements (5) are evenly distributed under the trays, and the infrared heating plates (6) are set on the calcination box cover (102). The temperature control system includes a temperature sensor group, a PID temperature controller and a heating element control circuit. The temperature sensor group is used to monitor the temperature of the calcining furnace. The PID temperature controller receives the monitoring data from the temperature sensor group and adjusts the power of the resistance wire heating element (5) and the infrared heating plate (6) through the heating element control circuit.

2. The intelligent temperature-controlled calcining furnace according to claim 1, characterized in that: The calcination box (101) includes a rectangular lower part and a three-sided upper part. The calcination box cover (102) is hinged to the upper part of the box and can be opened and closed. The temperature sensor group includes multiple temperature sensors (3) installed on the upper part of the box.

3. The intelligent temperature-controlled calcining furnace according to claim 1, characterized in that: The bottom of the calcination box (101) is provided with a slag receiving tray (4) that can be pulled out along the side of the calcination box.

4. The intelligent temperature-controlled calcining furnace according to claim 1, characterized in that: The heating element control circuit includes a silicon controlled rectifier (SCR) voltage regulator, and the heating element is connected to the power supply through the SCR voltage regulator.

5. The intelligent temperature-controlled calcining furnace according to claim 1, characterized in that: A placement platform (104) is fixedly connected to the side of the calcination box (101), a handle (103) is connected to the outside of the calcination box cover (102), and a movable caster (105) is connected to the bottom of the base (100).

6. The intelligent temperature-controlled calcining furnace according to claim 1, characterized in that: The number of trays is two, namely the first tray (201) and the second tray (202). The first tray (201) is placed on the top edge protrusion of the lower part of the box, and a support frame (1013) for supporting the second tray (202) is provided on the inner wall of the upper part of the box.