Unloader for cut-tobacco drier and cut-tobacco drier

Abstract

The invention belongs to the technical field of cigarette production equipment, and particularly relates to an unloader for a cut-tobacco drier and the cut-tobacco drier, the unloader for the cut-tobacco drier comprises a shell and a rotary sealing device, the top of the shell is provided with a material receiving inlet, the bottom of the shell is provided with an unloading outlet, the rotary sealing device is rotatably installed in the shell, and the rotary sealing device is arranged in the shell. The rotary sealing device comprises a center shaft and four or more fender plates installed on the center shaft, the four or more fender plates are arranged on the center shaft in a circumferential array mode, a material receiving area is formed between every two adjacent fender plates, a driving part is installed on the shell, and the driving part drives the center shaft to rotate. And the driving piece is in transmission connection with the central shaft. According to the cut-tobacco dryer, the top end of the rotating fender is attached to the inner wall of the shell in the middle of the shell, so that the upper area and the lower area of the shell are separated, rotary sealing of the part above the attached position is achieved, heat loss during discharging of the cut-tobacco dryer can be reduced, and uniform discharging is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of cigarette production equipment, and in particular relates to a discharger for a tobacco drying machine and the tobacco drying machine. Background Art

[0002] The tobacco drying machine is one of the core equipment in the cigarette production process. Fig.11 , Fig.12 As shown, the tobacco shreds fed into the inlet cover are dried by the drying drum and then enter the discharge cover. During the operation of the drying drum, the internal parameters such as temperature, humidity and pressure in the drum are detected, and the flow rate and speed of the steam are controlled through the hot air pipe, so that the produced tobacco shreds are within the preset process parameter error. The steam and tobacco shreds are separated in the screening drum box on the upper part of the discharge cover, and the separated steam is recycled and reused through the exhaust pipe. The discharge cover discharges the separated tobacco shreds to realize unloading.

[0003] However, in the existing tobacco drying machine, during the production process, the material is discharged directly from below the discharge hood, which has low sealing performance. In addition, since the position where the tobacco falls in the discharge hood is at different distances from the outlet end of the drying drum, problems such as uneven discharge and high heat loss will occur. It is necessary to improve a discharger for the tobacco drying machine. Summary of the invention

[0004] The purpose of the present invention is to provide a discharger for a wire drying machine and a wire drying machine, so as to solve the problems of uneven discharge and heat loss in the production process of the existing wire drying machine.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows: In the first aspect, a discharger for a wire drying machine comprises a shell and a rotary sealing device, wherein a material receiving inlet is arranged at the top of the shell and a material discharging outlet is arranged at the bottom, the rotary sealing device is rotatably installed in the shell, the rotary sealing device comprises a central axis and more than four leaf plates installed on the central axis, the more than four leaf plates are installed on the central axis in a circular array, and a material receiving area is formed between two adjacent leaf plates, a driving member is installed on the shell, and the driving member is transmission-connected to the central axis; the top end of the rotating leaf plate is in contact with the inner wall of the shell in the middle of the shell, and the material received by the material receiving area at the material receiving inlet is transferred to the discharging outlet.

[0006] In the present application, in the rotary sealing device inside the shell, during the rotation process, the top end of the fender maintains a fit state with the middle part of the shell, isolating the upper and lower parts of the shell, so that the upper space of the shell is rotationally sealed. At the same time, the fender is rotated to receive and drop materials, which can unload materials evenly, improve the uniformity of discharge and reduce heat loss.

[0007] Furthermore, the housing includes a perforated end cap and two arc plates, the two arc plates are installed opposite to each other, and the perforated end cap is installed at both ends of the arc plates. The arc plates have an arc in the middle that can cooperate with the rotation path of the top of the rotating leaf plate to maintain a rotation seal on the upper area of ​​the housing.

[0008] Furthermore, rotor spacers are installed at the middle and both ends of the central shaft, and end rings with holes are installed on the inner side of the end cover with holes. The rotor spacers at both ends of the central shaft are rotatably connected to the end rings with holes.

[0009] In the present application, the installed rotor spacer can separate the material receiving area and improve the structural strength of the rotary sealing device. At the same time, it can be better connected with the end ring with holes to achieve limiting during rotation and avoid axial displacement.

[0010] Furthermore, the fender is a curved surface structure with a sandwich composed of an inner arc plate and an outer arc plate, a pull rope is passed through the sandwich, a hollow cavity is opened at the center of the central axis, one end of the pull rope is fixedly connected to the inner arc plate or the outer arc plate, and the other end passes through the central axis and extends into the hollow cavity to be connected to a curvature adjustment device, and the curvature adjustment device is used to adjust the tension of the pull rope to control the curvature of the fender.

[0011] In the present application, the curvature adjustment device can make the surface curvature of the fender variable. When such a structure is used for material receiving, when one of the material receiving areas of the rotary sealing device rotates to the material receiving entrance, the headwind generated by the fender can push back part of the steam overflowing from the discharge hood, and receive the fallen material (specifically, tobacco), and then rotate to the discharge outlet, thereby reducing heat loss. At the same time, the fenders located on both sides of the central axis are tightly fitted with the shell, so that the rotary sealing device realizes rotary sealing.

[0012] Furthermore, one end of the fender close to the central axis is provided with more than two rows of through holes for the pull rope to pass through, and the curvature adjustment device includes a swing ball, and the pull rope of each row of the through holes is connected to the swing ball.

[0013] Among them, when the central axis is stationary, it is subjected to the joint pulling force of the pull ropes corresponding to each column of perforations. Combined with the gravity of the swinging ball, the swinging ball is in a lower center position, stretching the pull rope connected to the top fender and contracting the pull rope connected to the bottom fender, so that the curvature of the fenders at different positions changes, which can better produce headwind and discharge.

[0014] Furthermore, the curvature adjustment device includes an eccentric shaft and a rotating sleeve, the eccentric shaft is rotatably installed in the hollow cavity, the pull rope extending into the hollow cavity is connected to the rotating sleeve, the rotating sleeve is rotatably connected to the eccentric shaft, and the eccentric shaft is transmission-connected to a driver, which adopts a stepping motor.

[0015] Furthermore, the driver is electrically connected to a controller, and the controller is used to control the driver to drive the eccentric shaft to rotate.

[0016] Furthermore, the controller is electrically connected to a detection device, which is used to detect production parameters in the shell, wherein the production parameters include at least temperature, humidity and pressure; the controller is electrically connected to the driving member, and the controller is used to control the rotational speed of the driving member to drive the central shaft according to the production parameters.

[0017] In the present application, the detection device can provide data support for the control of the rotary sealing device, and improve the control automation level of the discharger and the accuracy of product quality control.

[0018] In a second aspect, the present application further provides a wire drying machine, comprising a wire drying machine body and a wire drying machine discharger as described above; The wire drying machine body includes a bracket, a drying drum obliquely installed by the bracket, an inlet cover is installed at one end of the drying drum, a discharge cover is installed at the other end, and a screening drum box is installed on the top of the discharge cover; the screening drum box is connected to an exhaust pipe, a hot air pipe is connected between the discharge cover and the inlet cover, the screening drum box is connected to a secondary air duct, and the screening drum box is connected to a cleaning air duct; a sealed cavity is provided between the inlet cover and the drying drum, and the sealed cavity is connected to a sealed air duct; the wire drying machine discharger is installed at the bottom of the discharge cover.

[0019] The invention adopting the above technical solution has the following advantages: 1. In the present application, the discharger is arranged below the discharge cover of the tobacco drying machine to discharge the separated material in the screening drum box, i.e., tobacco shreds, to improve the uniformity of the discharge.

[0020] 2. In the present application, when the rotary sealing device is stationary, the discharge outlet can be sealed to avoid leakage of heat and materials, thereby improving the drying efficiency and quality during production.

[0021] 3. A rotary sealing device is arranged inside the shell, which can realize rotary sealing of the upper area of ​​the shell and the discharge cover, while taking into account the rotary material receiving and discharging; and solve the problems of uneven material discharging and large heat loss of the existing silk drying machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings; Figure 1 It is a schematic diagram of the overall structure of a discharger for a tofu drying machine according to the present invention; Figure 2 It is a second perspective structural schematic diagram of an overall discharger for a tofu drying machine of the present invention; Figure 3 It is a schematic diagram of the overall structure of another discharger for a tofu drying machine of the present invention; Figure 4 It is a schematic diagram of the structure of the central shaft and the fender as a whole of the present invention; Figure 5 It is a front view of the central axis and the fender of the present invention as a whole; Figure 6 for Figure 5 Sectional view along AA direction; Figure 7 for Figure 6 The enlarged schematic diagram of point B in the middle; Figure 8 Another cross-sectional view of the center shaft and the fender as a whole of the present invention; Fig. 9 It is a front view of the central axis and the fender of the present invention as a whole; Fig.10 for Fig. 9 Sectional view along CC direction; Fig.11 It is a schematic diagram of the overall structure of a wire drying machine with a discharger according to the present invention; Fig.12 This is a front view of the entire wire drying machine with a discharger according to the present invention; The main component symbols are described as follows: 1. End cover with hole; 2. End ring with hole; 3. Arc plate; 4. Fender; 41. Inner arc plate; 42. Interlayer; 43. Outer arc plate; 5. Center axis; 51. Hollow cavity; 52. Mounting groove; 6. Drive shaft hole; 7. Discharge outlet; 8. End cover bearing; 9. Adjustment shaft; 91. Protrusion; 10. Swinging ball; 11. Pull rope; 12. Limiting ring; 13. Eccentric shaft; 14. Connector; 15. Eccentric sleeve; 16. Wire; 17. End bearing seat; 101. discharge hood; 102. exhaust pipe; 103. secondary air duct; 104. cleaning air duct; 105. hot air duct; 106. sealed air duct; 107. inlet hood; 108. door. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that in the drawings or descriptions of the specification, similar or identical parts use the same figure numbers, and the implementation methods not shown or described in the drawings are forms known to ordinary technicians in the relevant technical field. In addition, the directional terms mentioned in the embodiments, such as "upper", "lower", "top", "bottom", "left", "right", "front", "back", etc., are only referenced to the directions of the drawings and are not used to limit the scope of protection of the present invention. Example

[0024] like Figures 1 to 10 As shown, a discharger for a wire drying machine of the present invention comprises a housing and a rotary sealing device, wherein the housing can be made of stainless steel material, which has good high temperature resistance and corrosion resistance. A material receiving inlet is arranged at the top of the housing, and a discharge outlet 7 is arranged at the bottom. The material receiving inlet is connected to the discharge cover 101 of the wire drying machine, and the discharge outlet 7 is used for discharging materials. Fig.11 The rotary sealing device is rotatably installed in the shell, and can be installed specifically through bearings. The rotary sealing device includes a central shaft 5 and eight leaf plates 4 installed on the central shaft 5. The eight leaf plates 4 are installed in a circular array on the central shaft 5, and a material receiving area is formed between two adjacent leaf plates 4. A driving member is installed on the shell, and the driving member can be a motor. The driving member is connected to the central shaft 5 for driving the central shaft 5 to drive the leaf plates 4 to rotate. The top end of each rotating leaf plate 4 is in contact with the inner wall of the shell in the middle of the shell, and the material received by the material receiving area at the material receiving inlet is transferred to the discharge outlet 7.

[0025] In this embodiment, the unloader for the tobacco drying machine is installed under the discharge cover 101 of the tobacco drying machine to unload the tobacco dried by the tobacco drying machine. Such a structural design does not require much modification of the existing tobacco drying machine, and has high benefits and low costs. The tobacco drying machine models to which the unloader can be applied include but are not limited to HAUNI KLD-2, and most of them have a demand for the unloader. After application, it can effectively improve the heat utilization efficiency, reduce energy consumption, improve the production quality of tobacco, and thus improve market competitiveness.

[0026] In actual application, it can also be flexibly selected according to needs, and the number of fenders 4 can be set to four, six or eight.

[0027] like Figure 4As shown, eight leaf plates 4 are used as an example to form eight receiving areas. When the receiving area above the central axis 5 receives the material, the receiving area below discharges the material. At the same time, the leaf plates 4 corresponding to the receiving areas on the left and right sides maintain a fitting state with the shell. During the rotation process of the rotary sealing device arranged in the shell of this embodiment, the top of the leaf plate 4 maintains a tight fit with the middle of the shell, isolating the upper and lower areas of the shell, so that the upper area of ​​the shell is rotary sealed. At the same time, the leaf plate 4 is rotary to receive and discharge the material, and can discharge the material evenly, improve the uniformity of the discharge and reduce the heat loss.

[0028] like Figure 2 As shown, the middle of the shell of this embodiment has an arc section to fit with the top of the rotating blade 4. Such a structural design can achieve sealing of the material receiving entrance during rotation, and prevent the heat in the upper area of ​​the shell from leaking to the lower part while unloading, thereby reducing energy consumption.

[0029] Illustratively, in some instances of this embodiment, the driving member may also be a pneumatic motor, which may be mounted on the housing, and the output shaft of the pneumatic motor is connected to the central shaft 5 through a driving shaft hole 6 on the housing to achieve drive transmission.

[0030] like Figure 1 As shown, exemplarily, the shell includes a perforated end cover 1 and two arc plates 3. The two arc plates 3 are installed opposite to each other, and the perforated end cover 1 is installed at both ends of the arc plates 3. Reinforcing ribs are installed at the connection between the shell and the arc plates 3, so as to improve the structural strength of the shell. Among them, there is an arc section in the middle of the arc plate 3 that can cooperate with the rotation path of the top of the rotating leaf plate 4 to maintain a rotating seal on the upper part of the shell. Such a structural design can, on the one hand, be used for receiving and unloading materials, and on the other hand, can achieve sealing of the upper area of ​​the shell, and then seal the discharge cover 101 connected to the material receiving inlet on the upper part of the shell. The position of the discharge cover 101 can refer to Fig.11 .

[0031] like Figure 1 As shown, in some examples of this embodiment, in order to improve the sealing performance of the housing, a perforated end ring 2 can be superimposed on the inner side of the perforated end cover 1. In this embodiment, rotor spacers are installed at the middle and both ends of the central shaft 5, and the perforated end ring 2 is installed on the inner side of the perforated end cover 1, and the rotor spacers at both ends of the central shaft 5 are rotatably connected to the perforated end ring 2.

[0032] Among them, eight installation grooves 52 are opened on the outer surface of the central shaft 5, and the eight installation grooves 52 are opened in a circular array for installing eight blades 4, and the blades 4 are installed and fixed in cooperation with the rotor spacers. In this embodiment, the installed rotor spacers can divide the material receiving area to avoid the cross-flow of steam in the radial direction and improve the structural strength of the rotary sealing device. At the same time, it is better connected with the end ring with holes to achieve limiting during rotation and avoid axial displacement.

[0033] In some examples, the shape or design of the leaf plate 4 can also be adjusted according to the needs. In some examples of this embodiment, the leaf plate 4 is selected as a straight plate, such as Figure 1 shown.

[0034] like Figure 3-Figure 7 As shown, in this embodiment, the fender 4 is a curved surface structure having an interlayer 42 composed of an inner arc plate 41 and an outer arc plate 43, and the material of the inner arc plate 41 and the outer arc plate 43 can be rubber. A drawstring 11 is inserted into the interlayer 42, and a hollow cavity 51 is opened in the center of the central shaft 5. One end of the drawstring 11 is fixedly connected to the inner arc plate 41 or the outer arc plate 43, and the other end passes through the central shaft 5 and extends into the hollow cavity 51 to connect to the curvature adjustment device, which is used to adjust the tension of the drawstring 11 to control the curvature of the surface of the curved surface structure.

[0035] The material of the inner arc plate 41 and the outer arc plate 43 is rubber, which has a certain elastic deformation and will undergo elastic deformation when pulled or squeezed, and can be flexibly selected according to actual needs. In this way, the inner arc plate 41 or the outer arc plate 43 of the fender 4 is pulled to undergo elastic deformation, and the curvature becomes larger or smaller, and the degree of change has little effect on the top of the fender 4, or the amount of change is less than the elastic deformation caused by squeezing when the top of the fender 4 is fitted; the top of the fender 4 can always maintain contact with the shell.

[0036] Optionally, one end of the pull rope 11 can be fixedly connected to the inner arc plate 41 or the outer arc plate 43. With such a structural design, since it is a one-sided connection, when the inner arc plate 41 or the outer arc plate 43 is pulled, the outer arc plate 43 or the inner arc plate 41 only deforms accordingly, resulting in different deformation amounts on both sides, thereby increasing or decreasing the curvature of the surface of the curved structure.

[0037] Thus, the curvature adjustment device of this embodiment can make the surface curvature of the blade plate 4 variable. When receiving materials, when one of the receiving areas of the rotary sealing device rotates to the receiving inlet, the outer arc plate 43 of the blade plate 4 faces the receiving inlet at the top of the shell, and the generated headwind can discharge the cover 101 (see Fig.11) The overflowing steam is partially pushed back, and the fallen tobacco is received and then rotated to the discharge outlet 7 to reduce heat loss. At the same time, the leaf plates 4 on the left and right sides of the central axis 5 are tightly fitted with the shell, so that the rotary sealing device realizes rotary sealing.

[0038] In fact, it should be noted that the end of the fender 4 close to the central axis 5 is provided with four rows of perforations. For example, if the length of the fender 4 is 960 mm, the row spacing of the perforations can be 240 mm, that is, four rows of perforations are provided; the perforations are for the pull rope 11 to pass through, and the curvature adjustment device includes a swing ball 10, and the pull rope 11 of each row of the perforations is connected to a swing ball 10.

[0039] Among them, when the central axis 5 is stationary, it is subjected to the joint pulling force of the pull ropes 11 corresponding to each column of perforations. Combined with the gravity of the swinging ball 10, the position of the swinging ball 10 is lower than the center of the central axis 5, which is equivalent to stretching the pull rope 11 connected to the upper fender 4 and contracting the pull rope 11 connected to the bottom fender 4, so that the curvature of the fender 4 of the top fender 4 becomes larger, the curvature of the fender 4 of the lower fender 4 becomes smaller, and the curvature of the fender 4 of the left and right fenders 4 is neither too large nor too small, maintaining a fit with the shell, and other fenders undergo corresponding changes. The curvature of the fender 4 changes from small to large, which can increase the thrust upward and better generate headwind. The curvature of the fender 4 changes from large to small, which can increase a thrust downward and accelerate the falling of tobacco. In this way, headwind and discharge can be generated more flexibly. Example

[0040] In another embodiment, compared with the embodiment 1, other structures are the same, and the difference is that this embodiment can select other structures of the arc adjustment device according to the actual control accuracy, such as Figure 8 As shown, the curvature adjustment device includes an eccentric shaft 13 and a rotating sleeve, wherein the eccentric shaft 13 is rotatably mounted in the hollow cavity 51, and the pull rope 11 extending into the hollow cavity 51 is connected to the rotating sleeve, and the rotating sleeve is rotatably connected to the eccentric shaft 13. Through the rotation of the eccentric shaft 13, the rotating sleeve is eccentrically driven to move, thereby stretching or contracting the pull rope 11, so that the curvature of the fender 4 increases or decreases.

[0041] In fact, the connection method of the rotating sleeve and the pull rope 11 can be the same as the connection method of the swinging ball 10 and the pull rope 11, and of course other connection methods are also possible. Example

[0042] like Fig. 9 , Fig.10As shown, in another embodiment, this embodiment further improves the curvature adjustment device on the basis of embodiment 2. The curvature adjustment device of this embodiment also includes an electric heating structure, which includes a power supply, a power supply line, and an electric heating wire. The electric heating wire is arranged in the interlayer 42 and is electrically connected to a part of the pull rope 11. An adjustment shaft 9 is installed at one end of the hollow cavity 51 as the positive pole of the power supply line, and the other adjustment shaft 9 is installed at the other end of the hollow cavity 51 as the negative pole of the power supply line. A connector 14 is installed between the adjustment shafts 9 to limit the adjustment shafts 9 and form insulation. The two adjustment shafts 9 are respectively connected to the positive and negative poles of the power supply; as shown Fig.10 As shown, the connector 14 is a plastic disk made of an insulating material injection molding, which can align and insulate the two adjustment shafts 9. The power supply can be an AC power supply provided by the municipal government, or a battery, etc.; the pull rope can be made of copper wire or copper alloy wire.

[0043] In this embodiment, the electric heating structure can avoid the accumulation of temperature difference between the upper area and the lower area of ​​the shell separated by the rotating sealing device, reduce the temperature difference accumulation by heating the fender 4 and rotating to dissipate heat, and maintain the temperature inside the shell within the actual required range.

[0044] Exemplarily, the adjusting shaft 9 is installed in the central shaft 5 through the end cover bearing 8. A contact hole is opened on the adjusting shaft 9. The contact hole and the pull rope 11 are penetrated. A limiting ring 12 is installed outside the contact hole. The limiting ring 12 limits the adjusting shaft 9 at the center of the central shaft 5, so as to prevent the rotation of the central shaft 5 from affecting the effect of the curvature adjustment device on the pull rope 11.

[0045] For example, Figure 8 As shown, the inner ring of the adjusting shaft 9 is provided with a protrusion 91, which can encapsulate the end of the pull rope 11 and contact the eccentric sleeve 15 in the adjusting shaft 9 as an electrical terminal to realize power supply; the eccentric sleeve 15 is installed through the end face bearing seat 17, and a wire 16 is passed through the eccentric sleeve 15, and the wire 16 supplies power to the pull rope 11 through the eccentric sleeve 15 and the protrusion 91. Such a structural design can ensure that when the pull rope 11 is powered, the pull rope 11 can also be stretched and contracted through the eccentric sleeve 15 and the protrusion 91, thereby controlling the bending curvature of the fender 4.

[0046] The discharger of this embodiment also includes a detection device, which is electrically connected to a controller, and the controller is electrically connected to the driving member. The detection device is used to detect production parameters in the shell, and the controller controls the speed of the driving member to drive the central axis according to the production parameters; wherein the production parameters include at least temperature, humidity and pressure.

[0047] Exemplarily, the detection device includes a temperature sensor, a humidity sensor and a pressure sensor, which are installed in a shell to detect the temperature, humidity and pressure in the shell and transmit the detection data to a controller.

[0048] For example, the controller can be a PLC on the market. The controller HIA is electrically connected to the rotary sealing device, specifically to the driving member, to control the driving power of the driving member, and then control the rotation speed of the central shaft 5 and the leaf plate 4. In this embodiment, the detection device can provide data support for the control of the rotary sealing device, and improve the control automation of the discharger and the accuracy of product quality control. The controller is electrically connected to the curvature adjustment device, and is used to control the curvature of the surface of the curved structure through the curvature adjustment device according to the production parameters. Example

[0049] In another embodiment, Fig.11 , Fig.12 As shown, a wire drying machine comprises a wire drying machine body and a wire drying machine discharger; The tobacco drying machine body includes a bracket, a drying drum tiltedly installed by the bracket, an inlet cover 107 is installed at one end of the drying drum, and a discharge cover 101 is installed at the other end. A screening drum box is installed on the top of the discharge cover 101, and the screening drum box is connected to an exhaust pipe 102. A hot air pipe 105 is connected between the discharge cover 101 and the inlet cover 107, and the screening drum box is connected to a secondary air pipe 103. The screening drum box is connected to a cleaning air duct 104; a sealed cavity is provided between the inlet cover 107 and the drying drum, and the sealed cavity is connected to a sealed air duct 106. The discharger for the tobacco drying machine is installed at the bottom of the discharge cover 101 to discharge the separated tobacco, while ensuring the high sealing performance of the discharge cover 101.

[0050] When the tobacco drying machine is drying the tobacco, the hot air in the hot air pipe 105 flows through the drying drum along the flow direction of the tobacco, transfers heat to the tobacco and takes away moisture by convection; the tobacco and steam are separated in the screening drum box, and the exhaust gas passes through the screening drum box, the exhaust pipe 102 and its subsequent pipes, and is discharged into the atmosphere after passing through the cyclone separator and the filter, or is recycled and reused; The regulating valve installed on the exhaust pipe 102 can adjust the pressure in the discharge cover 101; the dry hot secondary air sent in by the secondary air pipe 103 can prevent the exhaust gas from frosting in the exhaust pipe 102 and the filter due to cooling; the cleaning air pipe 104 continuously sends clean air to clean the screening drum in the screening drum box. The air outlet of the sealing air pipe 106 can form an overpressure in the sealing chamber to prevent the sealing chamber from being dirty.

[0051] In fact, a safety protection cover is provided on the side of the discharge cover 101; doors 108 are installed on the walls of the discharge cover 101, the inlet cover 107, the screening drum box, etc., to facilitate daily maintenance and inspection of the pipeline. A pipeline heat insulation layer, such as heat insulation cotton, heat insulation sheet, etc., is installed between the exhaust pipe discharge cover 101 and the safety protection cover to achieve heat insulation and reduce energy consumption.

[0052] The above is a detailed introduction to a discharger for a tofu drying machine provided by the present invention. The description of the specific embodiment is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A discharger for a torrefaction drying machine, comprising a housing and a rotary sealing device, characterized in that: The top of the shell is provided with a material receiving inlet, and the bottom is provided with a material discharging outlet (7). The rotary sealing device is rotatably mounted in the shell. The rotary sealing device comprises a central shaft (5) and more than four leaf plates (4) mounted on the central shaft (5). The more than four leaf plates (4) are mounted on the central shaft (5) in a circular array, and a material receiving area is formed between two adjacent leaf plates (4). A driving member is mounted on the shell, and the driving member is transmission-connected to the central shaft (5). The top end of the rotating leaf plate (4) is in contact with the inner wall of the shell at the middle of the shell, and transfers the material received by the material receiving area at the material receiving inlet to the material discharging outlet (7).

2. The discharger for a torrefaction drying machine according to claim 1, characterized in that: The shell comprises an end cover with a hole (1) and two arc plates (3), the two arc plates (3) are mounted opposite to each other, and the end cover with a hole (1) is mounted at both ends of the arc plates (3).

3. The discharger for a torrefaction drying machine according to claim 2, characterized in that: The middle and both ends of the central shaft (5) are provided with rotor spacers, the inner side of the perforated end cover (1) is provided with a perforated end ring (2), and the rotor spacers at both ends of the central shaft (5) are rotatably connected to the perforated end ring (2).

4. The discharger for a torrefaction drying machine according to claim 1, characterized in that: The leaf plate (4) is a curved surface structure having a sandwich (42) formed by an inner arc plate (41) and an outer arc plate (43); a drawstring (11) is inserted into the sandwich (42); a hollow cavity (51) is opened at the center of the central axis (5); one end of the drawstring (11) is fixedly connected to the inner arc plate (41) or the outer arc plate (43); the other end passes through the central axis (5) and extends into the hollow cavity (51) to be connected to a curvature adjustment device; the curvature adjustment device is used to adjust the tension of the drawstring (11) to control the curvature of the leaf plate (4).

5. The discharger for a torrefaction drying machine according to claim 4, characterized in that: One end of the leaf plate close to the central axis (5) is provided with more than two rows of through holes, the through holes being used for the pull rope (11) to pass through, the curvature adjustment device comprising a swing ball (10), and the pull rope (11) in each row of the through holes is connected to the swing ball (10).

6. The discharger for a torrefaction drying machine according to claim 4, characterized in that: The arc adjustment device comprises an eccentric shaft (13) and a rotating sleeve, the eccentric shaft (13) being rotatably mounted in the hollow cavity (51), the pull rope (11) extending into the hollow cavity (51) being connected to the rotating sleeve, the rotating sleeve being rotatably connected to the eccentric shaft (13), and the eccentric shaft (13) being transmission-connected to a driver.

7. The discharger for a torrefaction drying machine according to claim 6, characterized in that: The driver is electrically connected to a controller, and the controller is used to control the driver to drive the eccentric shaft to rotate.

8. The discharger for a torrefaction drying machine according to claim 7, characterized in that: The controller is electrically connected to a detection device, which is used to detect production parameters in the shell, wherein the production parameters at least include temperature, humidity and pressure; the controller is electrically connected to the driving member, and the controller is used to control the speed of the driving member driving the central shaft according to the production parameters.

9. A wire drying machine, characterized in that: The utility model comprises a wire drying machine body and a wire drying machine discharger as claimed in any one of claims 1 to 8.

10. The tofu drying machine according to claim 9, characterized in that: The wire drying machine body comprises a bracket and a drying drum which is obliquely mounted via the bracket; an inlet cover (107) is mounted at one end of the drying drum and a discharge cover (101) is mounted at the other end; a screening drum box is mounted on the top of the discharge cover (101); the screening drum box is connected to an exhaust pipe (102); a hot air pipe (105) is connected between the discharge cover (101) and the inlet cover (107); the screening drum box is connected to a secondary air pipe (103); and the screening drum box is connected to a cleaning air duct (104); a sealed cavity is provided between the inlet cover (107) and the drying drum, and the sealed cavity is connected to a sealed air duct (106); and the wire drying machine discharger is mounted at the bottom of the discharge cover (101).

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