Aeration fermentation tank for producing organic fertilizer by utilizing wormcast

By designing an aeration fermentation tank including a rotating mechanism and an automatic cleaning device, the problem of reducing air permeability caused by biofilms in the traditional aeration fermentation tank is solved, and the smooth progress of the fermentation process and the improvement of product quality are achieved.

CN119977636AInactive Publication Date: 2025-05-13HEBEI SHENGTAI AGRICULTURAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510302056.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2025-05-13
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

When used in traditional aeration fermentation tanks, the biofilm generated during the vermicompost fermentation process combines with moisture to form a gel at the air outlet filter, resulting in a significant reduction in breathability, affecting the normal progress of the fermentation process and the quality of the final product.

Method used

An aeration fermentation tank including a charging frame, a controller, a hollow rotor, a filter cloth, a rotating mechanism and a cleaning brush is designed. The filter cloth is regularly replaced by a rotating mechanism, and the filter cloth is automatically cleaned by a cleaning brush to prevent clogging. At the same time, by laying a hollow drum under the material and connecting the fan, the respiration of microorganisms is supported and the fermentation efficiency is improved.

Benefits of technology

It effectively prevents the filter cloth from being blocked, ensures the smooth progress of the fermentation process, improves the fermentation efficiency, and ensures the quality of the final product.

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Abstract

The invention relates to the technical field of organic fertilizer production, in particular to an aeration fermentation tank for producing an organic fertilizer by using wormcast. Comprising a loading frame and a controller, the controller is installed on the side face of the loading frame, a connecting frame is connected to the side face of the loading frame, a fan is installed on the connecting frame, an air outlet of the fan is communicated with the inner side of the connecting frame, a water storage tank is formed in the loading frame and communicated with the inner side of the connecting frame, and hollow rotary drums are rotationally arranged at the bottom in the loading frame at intervals. According to the invention, the filter cloth is regularly replaced by the rotating mechanism, and the cleaning brush is used for automatically cleaning the filter cloth, so that the filter cloth is effectively prevented from being blocked, the fermentation process is ensured to be smoothly carried out, and compared with a traditional aeration fermentation tank, the condition that a filter screen at an air outlet is blocked can be prevented when materials are treated; and the hollow rotary drum is laid below the materials and is connected with the fan, so that the respiration of microorganisms can be effectively supported, the decomposition speed of organic matters is accelerated, and the fermentation efficiency is improved.
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Description

Technical Field

[0001] The invention relates to the technical field of organic fertilizer production, in particular to an aeration fermentation tank for producing organic fertilizer by utilizing earthworm castings. Background Art

[0002] With the development of modern agriculture, the demand for efficient and environmentally friendly organic fertilizers is increasing. As a high-quality organic fertilizer raw material, earthworm manure is highly favored because it is rich in nutrients and beneficial microorganisms. In order to fully utilize the advantages of earthworm manure and improve its value as an organic fertilizer, it is particularly important to adopt a suitable fermentation process. Aerated fermentation tanks, as a technical means that can effectively maintain an aerobic environment, play a key role in the fermentation process of earthworm manure. By laying pipes under the material and using the pipes to draw air from the bottom of the material, the respiration of microorganisms can be effectively supported, the decomposition rate of organic matter can be accelerated, and the fermentation efficiency can be improved.

[0003] However, traditional aerated fermentation tanks face some technical challenges in practical applications, especially for special organic materials such as earthworm manure. When the biofilm (such as actinomycete hyphae) produced during the fermentation process combines with moisture, a colloid will form at the air outlet filter, significantly reducing the air permeability, sometimes even reducing the air permeability by more than 30%. This not only affects the normal progress of the fermentation process, but may also lead to insufficient fermentation, thereby affecting the quality of the final product. Summary of the invention

[0004] In view of this, the present invention provides an aerated fermentation tank for producing organic fertilizer using earthworm manure, which can solve the problem that when using a traditional aerated fermentation tank to maintain an aerobic environment for earthworm manure, a colloid will be formed at the air outlet filter when the biofilm produced during the fermentation of the earthworm manure combines with moisture, significantly reducing the air permeability, which not only affects the normal progress of the fermentation process, but also may lead to insufficient fermentation.

[0005] The technical scheme of the present invention is: an aeration fermentation tank for producing organic fertilizer by using earthworm manure, comprising a charging frame and a controller, wherein the controller is installed on the side of the charging frame, the side of the charging frame is connected to a connecting frame, a fan is installed on the connecting frame, an air outlet of the fan is communicated with the inner side of the connecting frame, a water storage tank is provided in the charging frame, the water storage tank is communicated with the inner side of the connecting frame, hollow drums are rotatably arranged at the bottom of the charging frame, the hollow drums are communicated with the inner side of the connecting frame, filter cloths are connected at intervals on the hollow drums, a rotating mechanism is provided on the connecting frame, the rotating mechanism is used to drive the hollow drums to rotate, so as to replace the filter cloths on the hollow drums for use, a cleaning brush is also rotatably arranged at the bottom of the charging frame, the cleaning brush is located in the water storage tank, the cleaning brush is used to clean the filter cloth on the hollow drum, a driving mechanism is also provided on the connecting frame, the driving mechanism is used to drive the cleaning brush to rotate, an inlet and outlet mechanism is provided on the connecting frame, the inlet and outlet mechanism is used to discharge clean water into the connecting frame, and discharge the clean water in the connecting frame.

[0006] As a preferred technical solution of the present invention, the rotating mechanism includes a first worm gear, a first servo motor and a first worm. The first worm gear is connected to one end of the hollow drum close to the connecting frame, the first servo motor is installed on the connecting frame, the first worm gear is connected to the output shaft of the first servo motor, and the first worm gear is meshed with the first worm gear.

[0007] As a preferred technical solution of the present invention, the driving mechanism includes a second worm gear, a second servo motor and a second worm, the end of the cleaning brush close to the connecting frame is connected to the second worm gear, the second servo motor is installed on the connecting frame, the output shaft of the second servo motor is connected to the second worm gear, and the second worm gear is meshed with the second worm gear.

[0008] As a preferred technical solution of the present invention, the inlet and outlet mechanism includes a three-way pipe, a drain valve and a water injection pipe. The three-way pipe is installed on the side of the connecting frame. Three ports are arranged on the three-way pipe. One of the ports of the three-way pipe is connected to the inner side of the connecting frame. The remaining two ports of the three-way pipe are respectively connected to the drain valve and the water injection pipe. The drain valve is used to discharge the clean water in the three-way pipe, and the water injection pipe is used to inject clean water into the three-way pipe.

[0009] As a preferred technical solution of the present invention, the water injection pipe is made of a transparent material, and a scale is provided on the surface of the water injection pipe, and the scale is used to measure the height of the clean water level in the water injection pipe.

[0010] As a preferred technical solution of the present invention, it also includes a covering shell, which is installed on the side of the connecting frame, and the covering shell is used to protect the first worm wheel, the first worm, the second worm wheel and the second worm.

[0011] As a preferred technical solution of the present invention, a fan is also included. The fan is arranged in the hollow drum, and the fan is used to introduce the airflow at the inner end of the hollow drum into the other end.

[0012] As a preferred technical solution of the present invention, it also includes a detection mechanism, which includes an electric push rod, a temperature detector and a baffle. The electric push rod is arranged in the loading frame, and the temperature detector is connected to the telescopic rod of the electric push rod. The temperature detector is used to detect the temperature of the material. A baffle is arranged at the bottom of the loading frame, and the temperature detector slides through the baffle.

[0013] Beneficial effects: 1. The present invention uses a rotating mechanism to regularly replace the filter cloth and uses a cleaning brush to automatically clean the filter cloth, which effectively prevents the filter cloth from being blocked and ensures the smooth progress of the fermentation process. Compared with traditional aerated fermentation tanks, it can prevent the filter screen at the air outlet from being blocked when processing materials, and by laying a hollow drum under the material and connecting a fan, it can effectively support the respiration of microorganisms and accelerate the decomposition rate of organic matter, thereby improving the fermentation efficiency.

[0014] 2. The present invention integrates a temperature detector and a controller, which can automatically adjust the flow rate of the blown air according to the material temperature, ensure that the microorganisms are under the best growth conditions, and further optimize the fermentation conditions.

[0015] 3. The fan of the present invention helps to evenly discharge the air in the hollow drum into the loading frame, avoiding the situation where the airflow is too strong on one side and insufficient on the other side, thereby promoting the uniform fermentation of the fermented material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a cross-sectional view of the charging frame and the connecting frame of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the charging frame, the hollow drum and the cleaning brush of the present invention.

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the connection frame, the first servo motor and the second servo motor of the present invention.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the rotating mechanism and the driving mechanism of the present invention.

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the entry and exit mechanism of the present invention.

[0022] Figure 7 This is a structural separation diagram of the covering shell and the connecting frame of the present invention.

[0023] Figure 8 It is a cross-sectional view of the hollow drum of the present invention.

[0024] Fig. 9 It is a cross-sectional view of the charging frame of the present invention.

[0025] Fig.10 It is a schematic diagram of the three-dimensional structure of the detection mechanism of the present invention.

[0026] Marked in the figure: 1-charging frame, 2-controller, 3-connecting frame, 4-fan, 5-water storage tank, 6-hollow drum, 7-filter cloth, 801-first worm gear, 802-first servo motor, 803-first worm, 9-cleaning brush, 1001-second worm gear, 1002-second servo motor, 1003-second worm, 1101-tee pipe, 1102-drain valve, 1103-water injection pipe, 12-scale, 13-cover shell, 14-fan, 15-electric push rod, 16-temperature detector, 17-baffle. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope and application scope of the present invention are not limited.

[0028] Embodiment: An aerated fermentation tank for producing organic fertilizer using earthworm castings, see Figure 1-Figure 7 As shown, it includes a charging frame 1 and a controller 2; the controller 2 is installed on the upper right side of the charging frame 1; it also includes a connecting frame 3, a fan 4, a hollow drum 6, a filter cloth 7, a rotating mechanism, a cleaning brush 9, a driving mechanism and an in-and-out mechanism; the lower right side of the charging frame 1 is connected to the connecting frame 3, and the interior of the connecting frame 3 is a hollow structure; fans 4 are installed on both the front and rear sides of the top of the connecting frame 3, the fans 4 are electrically connected to the controller 2, and the air outlets of the two fans 4 are connected to the inner side of the connecting frame 3; a water storage tank 5 is opened at the bottom of the charging frame 1, and the water storage tank 5 is connected to the inner side of the connecting frame 3; a hollow drum 6 is arranged at intervals at the bottom of the charging frame 1, and the hollow drum 6 is located directly above the water storage tank 5, and the right end of the hollow drum 6 is connected to the inner side of the connecting frame 3; ... Filter cloth 7 is connected to the outer surface of the cylinder 6 at intervals. The filter cloth 7 is used to prevent the material in the charging frame 1 from falling into the hollow drum 6, and the filter cloth 7 does not block the airflow in the hollow drum 6 from being discharged into the charging frame 1; a rotating mechanism is provided on the connecting frame 3, and the rotating mechanism is used to drive the hollow drum 6 to rotate, so as to replace the filter cloth 7 on the hollow drum 6 for use; a cleaning brush 9 is also rotatably provided at the bottom of the charging frame 1, and the cleaning brush 9 is located in the water storage tank 5. The cleaning brush 9 is used to clean the filter cloth 7 on the hollow drum 6; a driving mechanism is also provided on the connecting frame 3, and the driving mechanism is used to drive the cleaning brush 9 to rotate; an inlet and outlet mechanism is provided on the connecting frame 3, and the inlet and outlet mechanism is used to discharge clean water into the connecting frame 3, and to discharge the clean water in the connecting frame 3.

[0029] See also Figure 4 and Figure 5As shown, the rotating mechanism includes a first worm gear 801, a first servo motor 802 and a first worm 803; the first worm gear 801 is connected to the right end of the hollow drum 6; the first servo motor 802 is installed on the upper rear side of the connecting frame 3, and the first servo motor 802 is electrically connected to the controller 2; the first worm gear 803 is connected to the output shaft of the first servo motor 802, the first worm gear 803 is rotatably connected to the upper right side of the connecting frame 3, and the first worm gear 803 is meshed with the first worm gear 801.

[0030] See also Figure 4 and Figure 5 As shown, the driving mechanism includes a second worm gear 1001, a second servo motor 1002 and a second worm 1003; the right end of the cleaning brush 9 is connected to the second worm gear 1001; the second servo motor 1002 is installed on the lower rear side of the connecting frame 3, and the second servo motor 1002 is electrically connected to the controller 2; the second worm 1003 is connected to the output shaft of the second servo motor 1002, the second worm 1003 is rotatably connected to the lower right side of the connecting frame 3, and the second worm 1003 is meshed with the second worm gear 1001.

[0031] See also Figure 6 and Figure 7 As shown, the inlet and outlet mechanism includes a three-way pipe 1101, a drain valve 1102 and a water injection pipe 1103; a three-way pipe 1101 is installed on the front lower side of the connecting frame 3, and three ports are arranged on the three-way pipe 1101. The rear port of the three-way pipe 1101 is connected to the inner side of the connecting frame 3, and the water injection pipe 1103 is made of transparent plastic, and the outer surface of the water injection pipe 1103 is provided with a scale 12, and the scale 12 is used to measure the height of the clean water level in the water injection pipe 1103; the front port of the three-way pipe 1101 is connected to the drain valve 1102, and the drain valve 1102 is used to discharge the clean water in the three-way pipe 1101; the upper port of the three-way pipe 1101 is connected to the water injection pipe 1103, and the water injection pipe 1103 is used to inject clean water into the three-way pipe 1101.

[0032] When in use, the material is poured into the loading frame 1, and the material is fermented in the loading frame 1, and then clean water is added to the water injection pipe 1103, so that the clean water enters the three-way pipe 1101, the connecting frame 3 and the water storage tank 5 through the water injection pipe 1103. During this period, the user can judge the clean water level in the water storage tank 5 according to the scale on the water injection pipe 1103, until the clean water level in the water storage tank 5 reaches a specified height (the clean water level in the water storage tank 5 does not exceed the bottom of the hollow drum 6), and then the controller 2 controls the fan 4 to start, so that the fan 4 introduces air into the connecting frame 3, so that air enters the hollow drum 6, so that the air passes through the filter cloth 7 and is discharged into the material in the loading frame 1, thereby effectively supporting the respiration of microorganisms in the material, accelerating the decomposition rate of organic matter, and thus improving the fermentation efficiency. After that, the controller 2 regularly controls the first servo motor 802 to drive the first worm 803 to rotate for a period of time. When the first worm 803 rotates, the first worm 803 drives the first worm wheel 801 and the hollow drum 6 to rotate, so that the filter cloth 7 on the hollow drum 6 is used alternately. The first worm 803 rotates After a period of rotation, the controller 2 automatically controls the first servo motor 802 to drive the first worm 803 to stop rotating, and then regularly controls the second servo motor 1002 to drive the second worm 1003 to rotate for a period of time through the controller 2. When the second worm 1003 rotates, the second worm 1003 drives the second worm wheel 1001 and the cleaning brush 9 to rotate, so that the cleaning brush 9 brushes and cleans the filter cloth 7 at the bottom of the hollow drum 6. When the second worm 1003 rotates for a period of time, the controller 2 automatically controls the second servo motor 1002 to drive the second worm 1003 to rotate for a period of time. 1002 drives the second worm 1003 to stop rotating, so that the filter cloth 7 can be automatically replaced and cleaned, thereby preventing the filter cloth 7 from being blocked due to long-term use, and avoiding the normal fermentation process of the material being affected by the blockage of the filter cloth 7; after that, when the material in the loading frame 1 has completed fermentation, the controller 2 can control the fan 4 to be closed, and the material in the loading frame 1 can be taken out, and finally the clean water in the three-way pipe 1101, the connecting frame 3 and the water storage tank 5 can be discharged through the drain valve 1102.

[0033] See also Figure 6 and Figure 7 As shown, a cover shell 13 is also included; a cover shell 13 is installed on the right side of the connecting frame 3, and the cover shell 13 covers the first worm wheel 801, the first worm 803, the second worm wheel 1001 and the second worm 1003, so as to protect the first worm wheel 801, the first worm 803, the second worm wheel 1001 and the second worm 1003.

[0034] By providing a cover shell 13, the cover shell 13 can be used to protect the first worm wheel 801, the first worm 803, the second worm wheel 1001 and the second worm 1003 to prevent the first worm wheel 801, the first worm 803, the second worm wheel 1001 and the second worm 1003 from being hit by foreign objects, thereby extending the service life of the first worm wheel 801, the first worm 803, the second worm wheel 1001 and the second worm 1003.

[0035] See also Figure 8 As shown, a fan 14 is also included; fans 14 are arranged on both sides of the left and right sides of the hollow drum 6, and the fan 14 is used to introduce the airflow at the right end of the hollow drum 6 into the left end, and the fan 14 is electrically connected to the controller 2.

[0036] By setting the fan 14, when the controller 2 controls the blower 4 to start, the controller 2 can also control the fan 14 to start, so that the fan 14 can introduce the airflow at the right end of the hollow drum 6 into the left end, so that the air in the hollow drum 6 can be evenly discharged into the charging frame 1 through the left and right ends of the filter cloth 7, avoiding that the air inside the hollow drum 6 is discharged in large quantities from the right end of the filter cloth 7 and in small quantities from the left end of the filter cloth 7; thereafter, when the controller 2 controls the blower 4 to be turned off, the controller 2 can also control the fan 14 to be turned off.

[0037] See also Fig. 9 and Fig.10 As shown, a detection mechanism is also included, which includes an electric push rod 15, a temperature detector 16 and a baffle 17; two electric push rods 15 are arranged at the rear of the lower side inside the charging frame 1, and the two electric push rods 15 are distributed on the left and right, and the electric push rods 15 are electrically connected to the controller 2; a temperature detector 16 is connected to the telescopic rod of the electric push rod 15, and the temperature detector 16 is used to detect the temperature of the material, and the temperature detector 16 is electrically connected to the controller 2; baffles 17 are arranged on both sides of the left and right sides of the rear side of the bottom of the charging frame 1, and the temperature detector 16 slides through the baffle 17, and the baffle 17 is used to prevent the material from falling.

[0038] By setting up a detection mechanism, when the controller 2 controls the fan 4 to start, the controller 2 can periodically control the extension of the telescopic rod of the electric push rod 15, so that the electric push rod 15 pushes the temperature detector 16 into the material in the loading frame 1, so that the temperature of the material is detected by the temperature detector 16. After the temperature detector 16 completes the detection of the temperature of the material, the controller 2 periodically controls the shortening of the telescopic rod of the electric push rod 15, so that the electric push rod 15 retracts the temperature detector 16 from the material in the loading frame 1, and the temperature detector 16 sends the detected data to the controller 2, and then the controller 2 controls the blowing power of the fan 4 according to the detected data, so as to automatically adjust the air flow rate blown into the loading frame 1 according to the temperature (different microorganisms have different optimal growth temperature ranges. Within this range, the metabolic activity and reproduction rate of the microorganisms will change with the change of temperature. Generally speaking, within a suitable temperature range, the higher the activity of the microorganisms, the greater the demand for oxygen).

[0039] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. An aerated fermentation tank for producing organic fertilizer using earthworm castings, comprising a loading frame (1) and a controller (2), A controller (2) is installed on the side of the charging frame (1), which is characterized in that: A connecting frame (3) is connected to the side of the charging frame (1), a fan (4) is installed on the connecting frame (3), an air outlet of the fan (4) is connected to the inner side of the connecting frame (3), a water storage tank (5) is provided in the charging frame (1), the water storage tank (5) is connected to the inner side of the connecting frame (3), a hollow rotating drum (6) is arranged at intervals at the bottom of the charging frame (1), the hollow rotating drum (6) is connected to the inner side of the connecting frame (3), a filter cloth (7) is connected to the hollow rotating drum (6), and a rotating mechanism is arranged on the connecting frame (3), the rotating mechanism is used to drive the hollow rotating drum (6) The hollow drum (6) is rotated to replace the filter cloth (7) on the hollow drum (6) for use; a cleaning brush (9) is also rotatably arranged at the bottom of the loading frame (1); the cleaning brush (9) is located in the water storage tank (5); the cleaning brush (9) is used to clean the filter cloth (7) on the hollow drum (6); a driving mechanism is also arranged on the connecting frame (3); the driving mechanism is used to drive the cleaning brush (9) to rotate; an inlet and outlet mechanism is arranged on the connecting frame (3); the inlet and outlet mechanism is used to discharge clean water into the connecting frame (3) and discharge the clean water in the connecting frame (3).

2. An aeration fermentation tank for producing organic fertilizer using earthworm castings as claimed in claim 1, characterized in that: The rotating mechanism comprises a first worm gear (801), a first servo motor (802) and a first worm (803); one end of the hollow rotating cylinder (6) close to the connecting frame (3) is connected to the first worm gear (801); the first servo motor (802) is mounted on the connecting frame (3); the output shaft of the first servo motor (802) is connected to the first worm gear (803); and the first worm gear (803) is meshed with the first worm gear (801).

3. An aeration fermentation tank for producing organic fertilizer using earthworm castings as claimed in claim 2, characterized in that: The driving mechanism comprises a second worm gear (1001), a second servo motor (1002) and a second worm (1003); one end of the cleaning brush (9) close to the connecting frame (3) is connected to the second worm gear (1001); the second servo motor (1002) is mounted on the connecting frame (3); the output shaft of the second servo motor (1002) is connected to the second worm gear (1003); and the second worm gear (1003) is meshed with the second worm gear (1001).

4. An aeration fermentation tank for producing organic fertilizer using earthworm castings as claimed in claim 3, characterized in that: The inlet and outlet mechanism comprises a three-way pipe (1101), a water discharge valve (1102) and a water injection pipe (1103). The three-way pipe (1101) is installed on the side of the connection frame (3). The three-way pipe (1101) is provided with three ports. One of the ports of the three-way pipe (1101) is communicated with the inner side of the connection frame (3). The remaining two ports of the three-way pipe (1101) are respectively connected to the water discharge valve (1102) and the water injection pipe (1103). The water discharge valve (1102) is used to discharge clean water in the three-way pipe (1101), and the water injection pipe (1103) is used to inject clean water into the three-way pipe (1101).

5. An aeration fermentation tank for producing organic fertilizer using earthworm castings as claimed in claim 4, characterized in that: The water injection pipe (1103) is made of a transparent material, and a scale (12) is provided on the surface of the water injection pipe (1103). The scale (12) is used to measure the height of the clean water level in the water injection pipe (1103).

6. An aeration fermentation tank for producing organic fertilizer using earthworm castings as claimed in claim 5, characterized in that: It also includes a cover shell (13), which is installed on the side of the connection frame (3), and the cover shell (13) is used to protect the first worm wheel (801), the first worm (803), the second worm wheel (1001) and the second worm (1003).

7. An aeration fermentation tank for producing organic fertilizer using earthworm castings as claimed in claim 6, characterized in that: It also includes a fan (14). The fan (14) is arranged inside the hollow drum (6). The fan (14) is used to introduce the airflow at the inner end of the hollow drum (6) into the other end.

8. An aeration fermentation tank for producing organic fertilizer using earthworm castings as claimed in claim 7, characterized in that: The invention also comprises a detection mechanism, which comprises an electric push rod (15), a temperature detector (16) and a baffle (17). The electric push rod (15) is arranged in the charging frame (1), and the temperature detector (16) is connected to the telescopic rod of the electric push rod (15). The temperature detector (16) is used to detect the temperature of the material. The baffle (17) is arranged at the bottom of the charging frame (1), and the temperature detector (16) slides through the baffle (17).