Method for Recycling Chinese Medicinal Material Waste to Improve Thermal Efficiency of Medicine Calcining Furnace

Abstract

Method for recycling Chinese medicinal material waste to improve thermal efficiency of medicinal material calcining furnace, which relates to the technical field of Chinese medicinal material processing. Its steps include: (1) collecting and mixing Chinese medicinal material waste and adding a certain amount of water to form raw materials; (2) extruding and molding the raw materials at high temperature to make them into rod-shaped fuels; (3) putting the medicinal materials to be calcined into multiple calcining cylinders, and then vertically putting the multiple calcining cylinders into the medicinal material calcining furnace, keeping a gap between adjacent calcining cylinders; (4) vertically putting multiple rod-shaped fuels into the medicinal material calcining furnace and arranging the rod-shaped fuels and the calcining cylinders in a staggered arrangement column by column; (5) adding conventional fuels and / or rod-shaped fuels to the furnace at the bottom of the medicinal material calcining furnace and then starting to calcine the medicinal materials. The present invention can recycle waste, reduce environmental pollution and improve the thermal efficiency of the medicinal material calcining furnace.

Description

Technical Field

[0001] The present invention relates to the technical field of traditional Chinese medicine processing, and particularly to a method for recycling waste traditional Chinese medicine materials to improve the thermal efficiency of a medicine calcining furnace. Background Art

[0002] In the processing of traditional Chinese medicine, the calcination of traditional Chinese herbs is an important part of the process. Calcination is to heat the medicine under appropriate temperature conditions to transform the properties of the medicine into the shape of the prepared slices, change the original physical and chemical properties, enhance the medicinal effect, reduce side effects and toxicity. During calcination, it is necessary to control the temperature and time, and it is necessary to make the medicine evenly heated to ensure thorough calcination.

[0003] However, the heating temperature in the traditional medicine calcining furnace is not uniform. The fuel is placed in the bottom furnace chamber of the medicine calcining furnace. The temperature in the lower part of the furnace is high and the upper part is low, resulting in uneven heating of the medicine and incomplete calcination. In the actual operation process, it is even necessary to turn the medicine in the medicine calcining furnace every once in a while, which is very inconvenient.

[0004] Waste traditional Chinese medicine materials are the waste generated after the processing of traditional Chinese medicine. These waste materials will cause certain environmental pollution after being discarded at will. However, most traditional Chinese medicine materials are relatively ideal combustibles. Especially the bark materials commonly used in traditional Chinese medicine decoction pieces are raw materials with good combustibility. If these waste materials are collected and processed to form fuel and used to cooperate with the medicine calcining furnace to improve the thermal efficiency, it will be a very good choice. There is no such application idea in the prior art. If properly adapted, the production value and environmental protection value created are very large, and the problems brought by waste materials and the thermal efficiency of medicine calcination can be solved simultaneously. Summary of the Invention

[0005] The purpose of the present invention is to provide a method for recycling waste traditional Chinese medicine materials to improve the thermal efficiency of a medicine calcining furnace in view of the above problems of the prior art.

[0006] To solve the above technical problems, the present invention adopts the following technical scheme: A method for recycling waste traditional Chinese medicine materials to improve the thermal efficiency of a medicine calcining furnace, comprising the following steps:

[0007] (1) Collect and mix waste traditional Chinese medicine materials and add a certain amount of water to form raw materials;

[0008] (2) Extrude and mold the raw materials at high temperature to make them into rod-shaped fuels;

[0009] (3) Place the medicine to be calcined in a plurality of calcining cylinders, and then vertically place the plurality of calcining cylinders into the medicine calcining furnace, so that there is a gap between adjacent calcining cylinders;

[0010] (4) Vertically place a plurality of rod-shaped fuels into the medicine calcining furnace and arrange the rod-shaped fuels and the calcining cylinders in a staggered arrangement column by column;

[0011] (5) After adding conventional fuel and / or rod-shaped fuel into the furnace chamber at the bottom of the medicine calcining furnace, start the medicine calcining process.

[0012] Preferably, the Chinese herbal medicine waste includes Chinese yam, Poria cocos, Ophiopogon japonicus, Polygonatum sibiricum, Polygonatum odoratum, and stir-fried Fructus Aurantii.

[0013] More preferably, the water content in the raw materials is 10%.

[0014] More preferably, the extrusion temperature in the extrusion molding process in step (2) is 320 - 380 °C.

[0015] More preferably, the calcining cylinder is made of ceramic material.

[0016] More preferably, the multiple calcining cylinders are arranged in a matrix in the medicine calcining furnace, and four fuel rods are distributed around each calcining cylinder.

[0017] More preferably, the medicine calcining furnace includes a furnace body. An intermediate support layer and a lower support layer are arranged in the furnace body. The upper part of the intermediate support layer is used to place the calcining cylinder and the rod-shaped fuel. A furnace chamber is formed between the intermediate support layer and the lower support layer. An ash box is arranged below the lower support layer. A cover plate made of heat-insulating material is arranged at the top of the furnace body. An exhaust port is arranged on the cover plate. The inner wall surface of the furnace body is filled with heat-insulating material. An air inlet is arranged on the front side of the furnace chamber.

[0018] More preferably, both the intermediate support layer and the lower support layer are formed by spaced support steel bars.

[0019] By extruding and molding the Chinese herbal medicine waste into rod-shaped fuel, the environmental impact caused by the random littering of waste can be greatly reduced. Further, the made rod-shaped fuel is placed in the medicine calcining furnace and arranged in a staggered manner with the calcining cylinder column by column, so that the rod-shaped fuel can provide sufficient and uniform heat from bottom to top for the calcining cylinder when burning. Most importantly, it is no longer necessary to flip the calcining cylinder, which reduces the labor intensity. Also, because it is not necessary to frequently open the medicine calcining furnace, the internal heat can be fully preserved and utilized. Compared with the traditional medicine calcining method of frequently flipping the medicine, the thermal efficiency can be greatly improved, thereby enhancing the production efficiency. In addition, the raw materials of the rod-shaped fuel can be directly taken from within the Chinese herbal medicine processing factory without the need to purchase raw materials through additional means, achieving multiple benefits at once. Description of the Drawings

[0020] Figure 1 is a schematic cross-sectional view of the overall structure in the embodiment of the present invention;

[0021] Figure 2 is a schematic diagram of the placement structure of the calcining cylinder and the rod-shaped fuel inside the furnace body in the embodiment.

[0022] In the figure:

[0023] 1 - furnace body; 2 - intermediate support layer; 3 - lower support layer

[0024] 4 - calcining cylinder; 5 - rod-shaped fuel; 6 - furnace chamber

[0025] 7 - ash box; 8 - cover plate; 9 - exhaust port Specific implementation mode

[0026] For the convenience of understanding by those skilled in the art, the present invention will be further described below in conjunction with embodiments and the accompanying drawings. The content mentioned in the implementation mode does not limit the present invention.

[0027] It should be noted in advance that in the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. In addition, in the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween.

[0028] A method for recycling traditional Chinese medicine waste to improve the thermal efficiency of a medicine calcining furnace includes the following steps:

[0029] (1) Collect and mix traditional Chinese medicine waste and add a certain amount of water to form a raw material. The traditional Chinese medicine waste includes Chinese yam, poria cocos, ophiopogon japonicus, polygonatum sibiricum, polygonatum odoratum, and stir-fried fructus aurantii. The water content in the raw material is 10%.

[0030] (2) Extrude and form the raw material at a high temperature to make it into rod-shaped fuel. Among them, the extrusion temperature is 320 - 380 °C.

[0031] (3) Place the medicine to be calcined in a plurality of calcining cylinders, and then vertically place the plurality of calcining cylinders into the medicine calcining furnace, so that there is a gap between adjacent calcining cylinders.

[0032] (4) Vertically place a plurality of rod-shaped fuels into the medicine calcining furnace and arrange the rod-shaped fuels and the calcining cylinders in a staggered arrangement column by column.

[0033] (5) Add conventional fuel and / or rod-shaped fuel to the furnace chamber at the bottom of the medicine calcining furnace and then start calcining the medicine.

[0034] The above-mentioned calcining cylinder is made of ceramic material, and a plurality of calcining cylinders are arranged in a matrix in the medicine calcining furnace. Four fuel rods are distributed around each calcining cylinder. Correspondingly, a rod-shaped fuel can also provide heat for the four surrounding calcining cylinders during combustion, thus making full use of the rod-shaped fuel.

[0035] In this embodiment, as Figure 1 and Figure 2 shown, the medicine calcining furnace includes a furnace body 1. An intermediate support layer 2 and a lower support layer 3 are arranged inside the furnace body 1. The upper part of the intermediate support layer 2 is used to place the calcining cylinder 4 and the rod-shaped fuel 5. A furnace chamber 6 is formed between the intermediate support layer 2 and the lower support layer 3. A ash collecting box 7 is arranged below the lower support layer 3. A cover plate 8 made of heat-insulating material is arranged at the top of the furnace body 1. An exhaust port 9 is arranged on the cover plate 8. The inner wall surface of the furnace body 1 is filled with heat-insulating material. An air inlet is arranged on the front side of the furnace chamber 6. Both the intermediate support layer 2 and the lower support layer 3 are formed by spaced support steel rods.

[0036] Those skilled in the art should know that the role of placing fuel in the furnace chamber 6 for combustion is to provide the most basic heat environment in the entire medicine calcining furnace. Under the action of the fuel combustion and the high-temperature environment in the furnace, the rod-shaped fuel 5 placed on the intermediate support layer 2 will also burn fully. Then, in fact, there will still be a slight difference in temperature between the upper and lower parts of the medicine calcining area. However, compared with the existing method of only burning fuel in the lower furnace chamber, this difference has been reduced to a great extent, making the heat difference between the upper and lower ends of the calcining cylinder 4 small enough to avoid manually opening the medicine calcining furnace to turn the medicine. After solving this problem, the entire production efficiency can reach at least three times that of the previous level.

[0037] It is worth noting that the rod-shaped fuel 5 can be made from the waste materials remaining after the processing of traditional Chinese medicine decoction pieces factories. Such waste materials are readily available and do not require additional raw material procurement, realizing the recycling of waste materials. While enabling the waste materials to create secondary value, it can also avoid environmental pollution caused by the large amount of discarded waste materials. In order to make the waste materials of traditional Chinese medicine be extruded and formed into a rod-shaped fuel 5 after mixing, first, the water content in the raw materials needs to reach at least 10%. Secondly, the extrusion temperature is preferably 350 °C. Otherwise, the raw materials are likely to disperse. And the extrusion forming equipment can adopt existing conventional equipment without additional improvement settings. Therefore, the processing process is also simpler and easier to operate.

[0038] In the specific arrangement of the calcining cylinder 4 and the rod-shaped fuel 5, first, a plurality of calcining cylinders 4 can be arranged vertically in a matrix on the middle support layer 2, and there should also be a gap between the edge calcining cylinders 4 and the inner wall of the furnace body 1. To improve the heat uniformity and thermal efficiency of the calcining cylinder 4, in actual applications, rod-shaped fuels 5 can be inserted into the gaps around the calcining cylinder 4, and it is best that the length of the rod-shaped fuel 5 matches the length of the calcining cylinder 4. At the same time, the rod-shaped fuel 5 is adjacent to the calcining cylinder 4. Then, one rod-shaped fuel 5 can provide heat for at most four surrounding calcining cylinders 4, and at most four rod-shaped fuels 5 can surround one calcining cylinder 4.

[0039] Compared with the existing calcining methods, the method of recycling Chinese herbal medicine waste provided in the above embodiment to improve the thermal efficiency of the calcining furnace has actually had an obvious breakthrough change in the application concept. Because in the conventional technical idea, the medicine and fuel in the calcining furnace are separately in two other spaces. While solving the environmental problem caused by the waste by recycling Chinese herbal medicine waste, it can also improve the calcining thermal efficiency in the calcining furnace. This method with multiple benefits is the creative embodiment of this application and can achieve very practical technical effects in the actual production application of Chinese herbal medicine factories, having great market application value.

[0040] To make it easier for those of ordinary skill in the art to understand the improvements of the present invention over the prior art, some drawings and descriptions of the present invention have been simplified. In addition, the above embodiments are the preferred implementation schemes of the present invention. Besides, the present invention can also be implemented in other ways. Any obvious substitution without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A method for recycling traditional Chinese medicine waste to improve the thermal efficiency of a medicine calcining furnace, characterized in that, It includes the following steps: (1) Collect and mix Chinese herbal medicine waste and add a certain amount of water to form raw materials. The Chinese herbal medicine waste includes Chinese yam, Poria cocos, Ophiopogon japonicus, Polygonatum sibiricum, Polygonatum odoratum, and stir-fried Fructus Aurantii Immaturus. The water content in the raw materials is 10%; (2) Extrude and form the raw materials at a high temperature of 320-380 °C to make them into rod-shaped fuels; (3) Place the medicine to be calcined into multiple ceramic calcining cylinders, and then vertically place the multiple calcining cylinders into the medicine calcining furnace in a matrix arrangement, keeping a gap between adjacent calcining cylinders. Four fuel rods are distributed around each calcining cylinder; (4) Vertically place multiple rod-shaped fuels into the medicine calcining furnace and arrange the rod-shaped fuels and the calcining cylinders in a staggered arrangement column by column; (5) Add conventional fuel and / or rod-shaped fuel to the furnace chamber at the bottom of the medicine calcining furnace and then start calcining the medicine; Among them, the medicine calcining furnace includes a furnace body (1). An intermediate support layer (2) and a lower support layer (3) are arranged in the furnace body (1). The upper part of the intermediate support layer (2) is used to place the calcining cylinder (4) and the rod-shaped fuel (5). A furnace chamber (6) is formed between the intermediate support layer (2) and the lower support layer (3). A ash collecting box (7) is arranged below the lower support layer (3). A cover plate (8) made of heat-insulating material is arranged at the top of the furnace body (1). An exhaust port (9) is arranged on the cover plate (8). The inner wall surface of the furnace body (1) is filled with heat-insulating material. An air inlet door is arranged on the front side of the furnace chamber (6).

2. The method for recycling traditional Chinese medicine waste to improve the thermal efficiency of a medicine calcining furnace according to claim 1, wherein: Both the intermediate support layer (2) and the lower support layer (3) are formed by support steel rods arranged at intervals.

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