Fixation equipment capable of improving fixation effect

Abstract

The invention relates to fixation equipment capable of improving fixation effect, which comprises a rack, a fixation roller and an outer shell positioned on the outer side of the fixation roller are arranged on the rack, a snakelike linear airflow channel for air to flow is arranged on the outer shell, one end of the airflow channel is connected with an air blower, and the other end of the airflow channel is connected with an air blower. And the other end of the airflow channel is connected with a drum cavity at the feeding end of the fixation drum through an air inducing pipe. According to the scheme provided by the invention, through the arrangement of the airflow channel with the structure, the entering air can be heated for a longer time, so that the temperature of the air entering the roller is higher, and the tea leaf fixation effect is better.

Description

Technical Field

[0001] The invention relates to the field of tea production equipment, and in particular to tea withering equipment capable of improving the withering effect. Background Art

[0002] In the drum tea-fixing machine, the heat emitted by the tea-fixing drum heats the air entering the drum, so that the air entering the tea-fixing drum is hot air, thereby saving energy and improving the tea-fixing effect. The existing implementation method generally provides a linear air supply channel in the upper shell provided on the outside of the tea-fixing drum, one end of the air supply channel is connected to the blower, and the other end of the air supply channel is connected to the air duct that introduces the airflow into the tea-fixing drum. In this implementation method, although the air sent into the tea-fixing drum is heated, its temperature is still not high enough, and there is still a certain gap with the optimal air temperature required for the tea-fixing process, so it is necessary to solve this problem. Summary of the invention

[0003] The purpose of the present invention is to provide a green-shooting device for improving the green-shooting effect, which can be used to solve the above-mentioned problem and improve the green-shooting treatment effect of the green-shooting device with a longer length for improving the green-shooting effect.

[0004] A green-fixing device for improving the green-fixing effect, characterized in that it includes a frame, a green-fixing drum and an outer shell located outside the green-fixing drum are arranged on the frame, a serpentine air flow channel for air flow is arranged on the outer shell, one end of the air flow channel is connected to the blower, and the other end of the air flow channel is connected to the cylinder cavity of the feed end of the green-fixing drum through an air duct.

[0005] A further solution is: the outer shell is composed of an upper shell located on the upper side of the killing drum and a lower shell located on the lower side of the killing drum, and the air flow channel is arranged on the upper shell.

[0006] The airflow channel is composed of various long strip airflow units, the length direction of the airflow units is consistent with the length direction of the killing drum, the airflow units are arranged at intervals along the circumference of the killing drum, and the ends of each airflow unit are connected.

[0007] The airflow channel is composed of arc-shaped airflow units, the length direction of the airflow units is consistent with the circumferential direction of the killing drum, the airflow units are arranged at intervals along the length direction of the killing drum, and the ends of the airflow units are connected.

[0008] An arc-shaped air separator is provided on the upper outer side of the feeding end of the killing drum, and the other end of the air flow channel is connected to the air inlet provided on the air separator. Air outlets are provided at intervals along the circumference of the killing drum on the air separator, and air supply ducts are provided at each air outlet.

[0009] The airflow unit includes a first airflow section arranged corresponding to the working section cylinder and a second airflow section arranged corresponding to the dehumidification section cylinder. The first airflow section is composed of a clamping cavity portion arranged on the first upper shell section, and the second airflow section is composed of an airflow connecting pipe arranged on the second shell section. Two adjacent first airflow sections on the same airflow unit are connected via an airflow connecting pipe.

[0010] The second air flow section is composed of a plurality of air flow connecting tubes, and the air flow connecting tubes are arranged at intervals along the circumference of the killing drum.

[0011] An odd number of air flow units are arranged along the circumference of the killing drum.

[0012] The killing drum is composed of two working sections and a moisture-discharging section. The two first upper shell sections arranged corresponding to the two working sections are respectively recorded as A1 upper shell section and A2 upper shell section. The A1 upper shell section is arranged corresponding to the feeding end of the killing drum. The A1 upper shell section includes arc-shaped plates A11 and A12 arranged at intervals, and an A1 clamping cavity is formed between the A11 arc-shaped plates and the A12 arc-shaped plates. The A1 clamping cavity is divided into multiple A1 clamping cavity parts by each A1 partition; the A2 upper shell section includes arc-shaped plates A21 and A22 arranged at intervals, and an A2 clamping cavity is formed between the A21 arc-shaped plates and the A22 arc-shaped plates. The A2 clamping cavity is divided into multiple A2 clamping cavity parts by each A2 partition. The A1 clamping cavity parts on the A1 upper shell section are arranged correspondingly to the A2 clamping cavity parts on the A2 upper shell section, and the same group of correspondingly arranged A1 clamping cavity parts and A2 clamping cavity parts are interconnected through an airflow connecting pipe, and the A1 clamping cavity part is provided with an A1 arc-shaped buffer plate for buffering the airflow, and the A1 arc-shaped buffer plate is provided with A1 buffer airflow holes for airflow to pass through, and the A1 arc-shaped buffer plates are arranged at intervals along the length direction of the killing drum, and the A2 clamping cavity part is provided with an A2 arc-shaped buffer plate for buffering the airflow, and the A2 arc-shaped buffer plate is provided with A2 buffer airflow holes for airflow to pass through, and the A2 arc-shaped buffer plates are arranged at intervals along the length direction of the killing drum.

[0013] The A1 cavity is divided into three A1 cavity parts by two A1 partitions, and the A2 cavity is divided into three A2 cavity parts by two A2 partitions. The outlet of the blower is connected with the outer end of an A2 cavity part located at the edge. The A2 partition which is farther away from the blower along the circumference of the killing drum among the two A2 partitions is recorded as A2 connecting partition, and the outer end of the A2 connecting partition is provided with A2 connecting air flow holes for connecting the A2 cavity parts on both sides thereof. The A1 partition which is closer to the blower along the circumference of the killing drum among the two A1 partitions is recorded as A1 connecting partition, and the outer end of the A1 connecting partition is provided with A1 connecting air flow holes for connecting the A1 cavity parts on both sides thereof. The outer end of the A1 cavity part which is farthest from the blower along the circumference of the killing drum on the A1 upper shell section is connected with the air divider.

[0014] The above scheme provided by the present invention can heat the incoming air for a longer time by setting the air flow channel of the above structure, so that the temperature of the air entering the drum is higher and the tea leaf withering effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 for Figure 1 Schematic diagram of the structure after removing the upper shell.

[0017] Figure 3 for Figure 2 Schematic diagram of the structure after removing the fixing roller.

[0018] Figure 4 It is a schematic structural diagram of another embodiment of the killing roller.

[0019] Figure 5 It is a schematic diagram of the structure of the upper shell.

[0020] Figure 6 Schematic diagram of the internal structure of the upper shell.

[0021] The corresponding relationship between the reference numerals and the components is as follows: 00-frame, 01-heating assembly, 02-partition plate, 03-lower shell, 04-feed hopper, 05-annular heat insulation ring, 10-killing drum, 11-working section, 12-damp discharge section, 13-net body, 14-annular baffle, 20-A1 upper shell section, 21-A11 arc plate, 22-A12 arc plate, 23-A1 partition plate, 24-A1 clamping cavity, 25-A1 arc buffer plate, 26-A 1 buffer air flow hole, 27-A1 connecting air flow hole, 30-A2 upper shell section, 31-A21 arc plate, 32-A22 arc plate, 33-A2 partition, 34-A2 clamping cavity, 35-A2 arc buffer plate, 36-A2 buffer air flow hole, 37-A2 connecting air flow hole, 40-dehumidification hood, 41-partition, 42-adjusting gate, 43-suction fan, 51-air flow connecting pipe, 52-blower, 53-air distributor, 54-air duct. DETAILED DESCRIPTION

[0022] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0023] The present invention is a further improvement on a tea-withering drum 10 having a relatively large length, and the purpose of the improvement is to improve the tea-withering effect. The improvement mainly has two aspects: one is to solve the problem of moisture discharge of the traditional long drum, and the other is to solve the problem of poor withering effect caused by insufficient temperature of the hot air supplied by the transmission.

[0024] like Figure 1 , 2 As shown, a tea-withdrawing device for improving the tea-withdrawing effect comprises a frame 00 and a tea-withdrawing drum 10 rotatably mounted on the frame 00, the tea-withdrawing drum 10 is provided with a dehumidification section 12 and a working section 11, the working section 11 is used for tea-withdrawing, and the wall of the dehumidification section 12 is provided with a dehumidification structure, the dehumidification structure meets the requirements of the tea-leaf moving forward along the length direction of the drum and enables the moisture at the dehumidification section to be discharged to the outside of the drum through the dehumidification structure. Through the dehumidification structure, the generated moisture and humidity can be effectively discharged, and the continuous accumulation of moisture can be avoided, resulting in poor tea-withdrawing effect in the rear section of the tea-withdrawing drum 10, thereby improving the dehumidification effect. In addition, the tea leaves can be redistributed and balanced in moisture in the dehumidification section 12, providing the tea-withdrawing effect. The tea leaves are made greener after dehumidification. The dehumidification problem is solved, the water vapor concentration of the fresh leaves during the dehumidification process is greatly reduced, and the water-suffocating air is avoided. In this process, a better fragrance can be formed, for example, the tea leaves have good quality and can form orchid fragrance.

[0025] If the fixing drum 10 is relatively large, a plurality of moisture removal sections 12 may be provided, so that the working section 11 and the moisture removal section 12 are arranged alternately along the length direction of the fixing drum 10. There are two implementation methods of the moisture removal structure. The first is that the moisture removal structure is formed by through holes provided on the wall of the moisture removal section 12, such as Figure 4 As shown. The second type is: a vacant portion is provided on the cylinder wall of the moisture removal section 12, and the moisture removal structure is composed of a mesh body 13 provided on the cylinder wall. The mesh size on the mesh body 13 is determined according to the size of the tea leaves to be processed, and can be specifically set to 0.3 to 3 mm, preferably about 0.5 mm. When this method is implemented, reinforcing ribs are provided between the annular baffles 14 at both ends for connection, and the mesh body 13 is fixed on the reinforcing ribs, and the reinforcing ribs are provided at intervals along the circumference of the drum.

[0026] A further solution is: a heating component 01 for heating the drum is disposed on the outer side of the cylinder wall of the working section 11, and a heat insulation structure is disposed at the junction of the working section 11 and the moisture dissipation section 12. The heat insulation structure is used to prevent the heat generated by the heating component 01 from being transferred from the outer side of the working section 11 to the outer side of the moisture dissipation section 12. An outer shell is also disposed on the frame 00, and an installation area for installing the drum is disposed inside the outer shell. The heat insulation structure is composed of an annular heat insulation ring disposed between the outer shell and the killing drum 10, and the annular heat insulation ring 05 is composed of heat-resistant heat-insulating material. For details, as shown in FIG. Figure 3 , 5As shown, the outer shell includes a first shell section and a second shell section, the first shell section is arranged corresponding to the working section 11, the second shell section is arranged corresponding to the dehumidification section 12, and the annular thermal insulation ring is fixedly installed at the junction of the first shell section and the second shell section. An annular mounting groove is arranged at the junction of the first shell section and the second shell section, and the annular thermal insulation ring is installed in the annular mounting groove. A dehumidification hood 40 for discharging moisture flowing out of the dehumidification section 12 is arranged on the second shell section, and an adjusting component for adjusting the outlet size of the dehumidification hood 40 and a suction fan 43 for sucking moisture are arranged at the upper end of the dehumidification hood 40. The dehumidification hood 40 can be specifically made of a metal plate, and the dehumidification hood 40 is installed in a vertical shape. The two annular thermal insulation rings not only have a heat insulation effect, but also can prevent the water vapor in the dehumidification section from entering the heater, thereby extending the life of the heating electrical components.

[0027] Specifically: the outer shell is composed of an upper shell and a lower shell 03, the upper shell includes a first upper shell section and a second upper shell section, the lower shell 03 includes a first lower shell section and a second lower shell section, the second upper shell section and the second lower shell section constitute the second shell section, the lower shell 03 is provided with a groove-shaped lower installation area opening upward, the first upper shell section is provided with an arc-shaped groove-shaped upper installation area opening downward, an upper semicircular installation groove section is provided at the intersection of the first upper shell section and the second upper shell section, a lower semicircular installation groove section is provided at the intersection of the first lower shell section and the second lower shell section, the upper semicircular installation groove section and the lower semicircular installation groove section constitute the annular installation groove. The upper semicircular installation groove section can be specifically composed of two semicircular arc-shaped arc plates arranged at intervals on the first upper shell section, and the lower semicircular installation groove section can be specifically composed of two partition plates 41 arranged at intervals on the first lower shell section, and a semicircular vacant portion is provided on the upper side of the partition plate 41. The dehumidification hood 40 is arranged in a vertical shape, and a partition 41 arranged in a vertical shape is arranged in the upper air duct of the dehumidification hood 40. The partition 41 and the withering drum 10 are arranged in the length direction. The partition 41 divides the inner cavity of the upper air duct into a first exhaust channel and a second exhaust channel. The adjustment component includes an adjustment gate 42 respectively arranged corresponding to the first exhaust channel and the second exhaust channel, and the suction fan 43 is respectively arranged corresponding to the first exhaust channel and the second exhaust channel. Humidity regulation in the withering drum 10 is the core of improving the quality of tea withering. If the moisture is discharged too quickly, the aroma of the tea treated with withering will be poor; if the moisture is discharged slowly, the humidity in the withering drum 10 will be too high, which will lead to poor color of the tea. Therefore, the humidity in the withering drum 10 must be maintained within a certain range through precise adjustment to ensure reliable withering of the tea leaves. The dehumidification intensity required for the dehumidification treatment of tea leaves of different qualities, sizes and picking periods is different. Therefore, by adjusting the opening and closing state of the regulating gate 42 and adjusting the working state of the induced draft fan, the requirements of different dehumidification intensity are met, the adaptability range and the precise control of dehumidification intensity are improved, and the effect of tea dehumidification treatment is improved. Annular baffles 14 are also provided at both ends of the dehumidification section 12, and the annular mounting groove is provided on the outside of the annular baffle 14. The outside here refers to the side of the annular baffle 14 away from the middle of the dehumidification section 12. Specifically, two annular baffles 14 can be provided at intervals at both ends of the dehumidification section 12. The annular baffle 14 can not only improve the performance of blocking the heat conduction between the working section 11 and the outside of the dehumidification section 12, but also enhance the strength of the dehumidification section 12. There is a clearance fit between the annular heat insulation ring and the outer wall of the drum, and there is a clearance fit between the annular baffle 14 and the annular mounting groove. The outer ring diameter of the annular baffle 14 is larger than the inner ring diameter of the annular heat insulation ring. Thereby, the requirements of hindering heat conduction and meeting the rotation assembly of the dehumidification drum 10 are achieved. The first lower shell section is provided with an installation gap, and a horizontally arranged plate-frame-shaped heating component 01 is installed in the installation gap.The specific heating assembly 01 includes a plate-frame-shaped heating mounting seat and an electric heating assembly 01 arranged on the heating mounting seat, and the electric heating assembly 01 can be an electric heating wire. The groove bottom of the second lower shell section can be set to a vacant shape, or it can be set to other forms of structure. The installation method of the two ends of the fixing drum 10 can be consistent with the setting method of the traditional fixing equipment for improving the fixing effect.

[0028] Furthermore, a serpentine air flow passage is provided on the outer shell, one end of the air flow passage is connected to the blower 52, and the other end of the air flow passage is connected to the cylinder cavity at the feeding end of the withering drum 10 through the duct 54. By setting the air flow passage for air flow into a serpentine shape, the time for air to flow in the outer shell is increased, thereby extending the heating time of the air, and further making the temperature of the air discharged from the duct 54 higher, so as to better wither the tea leaves and improve the withering effect.

[0029] A further solution is, Figure 5 As shown: the outer shell is composed of an upper shell located on the upper side of the fixing drum 10 and a lower shell 03 located on the lower side of the fixing drum 10, and the airflow channel is arranged on the upper shell. During the specific operation, there are two ways to implement it, which can be selected according to the specific operation. The first is: the airflow channel is composed of various long strip-shaped airflow units, the length direction of the airflow unit is consistent with the length direction of the fixing drum 10, the airflow units are arranged at intervals along the circumference of the fixing drum 10, and the ends of the airflow units are connected. The second is: the airflow channel is composed of various arc-shaped airflow units, the length direction of the airflow unit is consistent with the circumferential direction of the fixing drum 10, the airflow units are arranged at intervals along the length direction of the fixing drum 10, and the ends of the airflow units are connected.

[0030] In detail: An arc-shaped air divider 53 is provided on the upper outer side of the feeding end of the green-curing drum 10, and the other end of the air flow channel is connected to the air inlet provided on the air divider 53. Air outlets are provided on the air divider 53 at intervals along the circumference of the green-curing drum 10, and air supply pipes are provided at each air outlet. The air divider 53 can be specifically composed of an arc-shaped box body, and the arc-shaped box body and the green-curing drum 10 can be specifically arranged concentrically. The air outlets can be arranged at equal intervals on the air divider 53. Preferably, the density of the air outlets corresponding to the tea-curing area is greater than the density corresponding to other areas. The tea-curing area is the area where the tea leaves are distributed in the green-curing drum 10 when the tea leaves are cured. A feed hopper 04 can be provided at the feeding end of the green-curing drum 10 to avoid interference with the feed hopper 04. In addition, a hot air distribution mechanism can be directly extended into the green-curing drum 10 to distribute hot air, and the arrangement of the air distribution mechanism can be implemented according to the patent previously applied for by the applicant. The airflow unit includes a first airflow section arranged on the cylinder body of the corresponding working section 11 and a second airflow section arranged on the cylinder body of the corresponding dehumidification section 12. The first airflow section is formed by a clamping cavity section arranged on the first upper shell section, and the second airflow section is formed by an airflow connecting pipe 51 arranged on the second shell section. Two adjacent first airflow sections on the same airflow unit are connected to each other through the airflow connecting pipe 51. The second airflow section is composed of a plurality of airflow connecting pipes 51, and each airflow connecting pipe 51 is arranged at intervals along the circumference of the killing drum 10. An odd number of airflow units are arranged along the circumference of the killing drum 10.

[0031] A more specific solution is, Figure 6As shown: the killing drum 10 is composed of two working sections 11 and a moisture discharge section 12. The two first upper shell sections arranged corresponding to the two working sections 11 are respectively recorded as A1 upper shell section 20 and A2 upper shell section 30. The A1 upper shell section 20 is arranged corresponding to the feeding end of the killing drum 10. The A1 upper shell section 20 includes an A11 arc plate 21 and an A12 arc plate 22 arranged at intervals. An A1 clamping cavity is formed between the A11 arc plate 21 and the A12 arc plate 22. The A1 clamping cavity is divided into a plurality of A1 clamping cavity portions 24 by each A1 partition 23; the A2 upper shell section 30 includes an A21 arc plate 31 and an A22 arc plate 32 arranged at intervals. An A2 clamping cavity is formed between the A21 arc plate 31 and the A22 arc plate 32. The A2 clamping cavity is divided into a plurality of A2 clamping cavity portions 24 by each A2 partition 33. A2 clamping cavity portion 34, each A1 clamping cavity portion 24 on the A1 upper shell section 20 is arranged correspondingly to each A2 clamping cavity portion 34 on the A2 upper shell section 30, and the same group of correspondingly arranged A1 clamping cavity portions 24 and A2 clamping cavity portions 34 are interconnected through an airflow connecting tube 51, and the A1 clamping cavity portion 24 is provided with an A1 arc-shaped buffer plate 25 for buffering the flow of air, and the A1 arc-shaped buffer plate 25 is provided with A1 buffer airflow holes 26 for airflow to pass through, and the A1 arc-shaped buffer plates 25 are arranged at intervals along the length direction of the killing drum 10, and the A2 clamping cavity portion 34 is provided with an A2 arc-shaped buffer plate 35 for buffering the flow of air, and the A2 arc-shaped buffer plate 35 is provided with A2 buffer airflow holes 36 for airflow to pass through, and the A2 arc-shaped buffer plates 35 are arranged at intervals along the length direction of the killing drum 10. The A1 clamping chamber is divided into three A1 clamping chamber parts 24 by two A1 partitions 23, and the A2 clamping chamber is divided into three A2 clamping chamber parts 34 by two A2 partitions 33. The outlet of the blower 52 is connected to the outer end of an A2 clamping chamber part 34 located at the edge. The A2 partition 33 of the two A2 partitions 33, which is farther away from the blower 52 along the circumference of the fixing drum 10, is recorded as an A2 connecting partition 41. The outer end of the A2 connecting partition 41 is provided with a portion for connecting the A2 clamping chamber parts on both sides thereof. The A2 connecting air flow hole 37 for connecting with the A1 connecting air flow hole 34, the A1 partition 23 which is closer to the blower 52 along the circumference of the killing drum 10 among the two A1 partitions 23 is recorded as the A1 connecting partition 41, and the outer end of the A1 connecting partition 41 is provided with an A1 connecting air flow hole 27 for connecting with the A1 clamping cavity portions 24 on both sides thereof, and the outer end of the A1 clamping cavity portion 24 on the A1 upper shell section 20 which is farthest from the blower 52 along the circumference of the killing drum 10 is connected to the air separator 53.

[0032] By setting up the air flow channel of the above structure, the air blown in by the blower 52 can be reliably heated, so that the temperature of the air entering the drum is higher. Compared with the traditional scheme, the air flow temperature at the air outlet can be increased by 40 to 60°C, and the tea withering effect is better.

[0033] In conclusion, the above-mentioned green-fixing equipment for improving the green-fixing effect provided by the present invention can effectively remove moisture and improve the green-fixing treatment effect.

[0034] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, mechanisms and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the art unless otherwise specified and limited.

Claims

1. A fixing device for improving the fixing effect, characterized in that: It includes a frame, on which is disposed a fixing drum and an outer shell located outside the fixing drum, the outer shell being provided with a serpentine air flow channel for air flow, one end of the air flow channel being connected to a blower, and the other end of the air flow channel being connected to a cylinder cavity at a feed end of the fixing drum via an air duct.

2. The fixing device for improving fixing effect according to claim 1, characterized in that: The outer shell is composed of an upper shell located on the upper side of the killing drum and a lower shell located on the lower side of the killing drum, and the air flow channel is arranged on the upper shell.

3. The fixing device for improving fixing effect according to claim 1 or 2, characterized in that: The airflow channel is composed of various long strip airflow units, the length direction of the airflow units is consistent with the length direction of the killing drum, the airflow units are arranged at intervals along the circumference of the killing drum, and the ends of each airflow unit are connected.

4. The fixing device for improving fixing effect according to claim 1 or 2, characterized in that: The airflow channel is composed of arc-shaped airflow units, the length direction of the airflow units is consistent with the circumferential direction of the killing drum, the airflow units are arranged at intervals along the length direction of the killing drum, and the ends of the airflow units are connected.

5. The fixing device for improving fixing effect according to claim 1 or 2, characterized in that: An arc-shaped air separator is provided on the upper outer side of the feeding end of the killing drum, and the other end of the air flow channel is connected to the air inlet provided on the air separator. Air outlets are provided at intervals along the circumference of the killing drum on the air separator, and air supply ducts are provided at each air outlet.

6. The fixing device for improving fixing effect according to claim 3, characterized in that: The airflow unit includes a first airflow section arranged corresponding to the working section cylinder and a second airflow section arranged corresponding to the dehumidification section cylinder. The first airflow section is composed of a clamping cavity portion arranged on the first upper shell section, and the second airflow section is composed of an airflow connecting pipe arranged on the second shell section. Two adjacent first airflow sections on the same airflow unit are connected via an airflow connecting pipe.

7. The fixing device for improving fixing effect according to claim 6, characterized in that: The second air flow section is composed of a plurality of air flow connecting tubes, and the air flow connecting tubes are arranged at intervals along the circumference of the killing drum.

8. The fixing device for improving fixing effect according to claim 6, characterized in that: An odd number of air flow units are arranged along the circumference of the killing drum.

9. The fixing device for improving fixing effect according to claim 6, characterized in that: The killing drum is composed of two working sections and a moisture-discharging section. The two first upper shell sections arranged corresponding to the two working sections are respectively recorded as A1 upper shell section and A2 upper shell section. The A1 upper shell section is arranged corresponding to the feeding end of the killing drum. The A1 upper shell section includes arc-shaped plates A11 and A12 arranged at intervals, and an A1 clamping cavity is formed between the A11 arc-shaped plates and the A12 arc-shaped plates. The A1 clamping cavity is divided into multiple A1 clamping cavity parts by each A1 partition; the A2 upper shell section includes arc-shaped plates A21 and A22 arranged at intervals, and an A2 clamping cavity is formed between the A21 arc-shaped plates and the A22 arc-shaped plates. The A2 clamping cavity is divided into multiple A2 clamping cavity parts by each A2 partition. The A1 clamping cavity parts on the A1 upper shell section are arranged correspondingly to the A2 clamping cavity parts on the A2 upper shell section, and the same group of correspondingly arranged A1 clamping cavity parts and A2 clamping cavity parts are interconnected through an airflow connecting pipe, and the A1 clamping cavity part is provided with an A1 arc-shaped buffer plate for buffering the airflow, and the A1 arc-shaped buffer plate is provided with A1 buffer airflow holes for airflow to pass through, and the A1 arc-shaped buffer plates are arranged at intervals along the length direction of the killing drum, and the A2 clamping cavity part is provided with an A2 arc-shaped buffer plate for buffering the airflow, and the A2 arc-shaped buffer plate is provided with A2 buffer airflow holes for airflow to pass through, and the A2 arc-shaped buffer plates are arranged at intervals along the length direction of the killing drum.

10. The fixing device for improving fixing effect according to claim 9, characterized in that: The A1 cavity is divided into three A1 cavity parts by two A1 partitions, and the A2 cavity is divided into three A2 cavity parts by two A2 partitions. The outlet of the blower is connected with the outer end of an A2 cavity part located at the edge. The A2 partition which is farther away from the blower along the circumference of the killing drum among the two A2 partitions is recorded as A2 connecting partition, and the outer end of the A2 connecting partition is provided with A2 connecting air flow holes for connecting the A2 cavity parts on both sides thereof. The A1 partition which is closer to the blower along the circumference of the killing drum among the two A1 partitions is recorded as A1 connecting partition, and the outer end of the A1 connecting partition is provided with A1 connecting air flow holes for connecting the A1 cavity parts on both sides thereof. The outer end of the A1 cavity part which is farthest from the blower along the circumference of the killing drum on the A1 upper shell section is connected with the air divider.

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