Duck manure low pressure drying systemTechnical Field
The invention relates to the technical field of environment-friendly treatment of livestock manure, in particular to a low-pressure drying system for duck manure.
Background
The meat duck breeding scale in China reaches more than 35 hundred million feathers, and the meat duck industry breeding mode is gradually developed from a simple net breeding mode to a large-scale cage breeding and three-dimensional net breeding stage. The traditional net culture mode has small culture amount, the single-span culture amount is within 8000 feathers, the single-span culture amount of the large-scale cage culture and three-dimensional net culture mode breaks through 30000 feathers, and the scale of the single-scale meat duck farm is up to 20 ten thousand feathers; along with the rapid development of meat duck cultivation and the promotion of the cultivation scale of a large-scale meat duck cultivation farm, the problem of environment-friendly treatment of the duck manure is becoming urgent, which is a main bottleneck for limiting the development of the meat duck industry, however, the special physicochemical characteristics of the duck manure make the traditional environment-friendly means for treating the livestock manure unsuitable for the treatment of the duck manure; the most obvious difference of the duck manure from other livestock manure is characterized in that the water content is high and can reach more than 90%, the reduction of the water content is the precondition of environment-friendly treatment of all livestock manure, the high water content of the duck manure is the main problem of large difficulty in treating the duck manure and large investment, and the healthy and sustainable development of the meat duck industry is severely restricted. Therefore, the meat duck industry is in urgent need for a simple, effective and low-cost duck manure water separation system.
How to solve the technical problems is the subject of the present invention.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the low-pressure drying system for the duck manure, which can be used for efficiently dehydrating, and has the advantages of low cost, low energy consumption and short process route.
In order to achieve the aim of the invention, the invention provides a duck manure low-pressure drying system, which comprises a closed tank, a bracket, an air suction component, an air inflation component, a stirring unit and a manure discharge unit, wherein the top of the closed tank is provided with a manure feeding port, the bottom of the closed tank is provided with a manure discharge port, the bracket is arranged at the bottom of the closed tank, and is used for supporting the closed tank, so that manure discharge operation can be conveniently carried out; the air extraction component is arranged, so that the air in the closed tank can be extracted to be vacuum, the air pressure in the closed tank is reduced, the boiling point of water in the duck manure is reduced in a low-pressure environment, and the low-temperature boiling is realized, thereby improving the evaporation efficiency and realizing the low-temperature drying of the duck manure under low energy consumption;
The manure adding opening is provided with a manure adding cover for sealing the manure adding opening, and when the low-pressure drying operation is carried out, the manure adding cover and the manure outlet unit are closed; the manure discharging unit can perform manure discharging operation when being opened, can realize high-efficiency dehydration treatment of duck manure, and does not need to consider sewage treatment after treatment, thereby saving treatment cost.
The stirring unit comprises a plurality of stirring driving shafts which are mutually parallel and respectively penetrate through two ends of the closed tank, a plurality of stirring sleeve rollers which are respectively sleeved outside each stirring driving shaft, the middle parts of the stirring sleeve rollers are hinged to the middle parts of the corresponding stirring driving shafts in the radial direction, a plurality of roller shaft grids which are respectively arranged on the outer side surfaces of each stirring sleeve roller, a shaking part and a first belt transmission mechanism, wherein the shaking part is respectively arranged between each stirring sleeve roller and the corresponding stirring driving shaft, and the first belt transmission mechanism is arranged between the plurality of stirring driving shafts; because the stirring sleeve roller shakes along the stirring driving shaft when rotating, the duck manure in the closed tank can be stirred along the stirring driving shaft in the axial direction, the radial direction and the same-direction three-way simultaneously and simultaneously, the movement amplitude of the duck manure in the closed tank is improved, and the drying effect is further improved.
A mechanism box is arranged outside the shaking component;
One of the stirring driving shafts is coaxial with an output shaft of a driving motor, and the driving motor is arranged at one end of the stirring driving shaft.
The invention is characterized in that the shaking component comprises a traction sleeve which is sleeved at one end part of the stirring driving shaft and is in mutual sliding fit with the stirring driving shaft along the axis direction, a first connecting rod which is respectively hinged on the stirring sleeve roller and the traction sleeve at the two ends, an internal thread sleeve which is in mutual rotating fit with the mechanism box along the axis direction, an adjusting piece which is mutually matched with the internal thread sleeve along the axis direction at one end part and the middle part, and a reciprocating rotating mechanism which controls the internal thread sleeve, wherein the axis of the stirring sleeve roller and the stirring driving shaft can be adjusted, and the stirring amplitude during stirring can be adjusted.
The reciprocating rotating mechanism comprises a limiting disc, a shifting wheel matched with the limiting disc, a sliding block matched with the mechanism box in a sliding way, a sliding block matched with one end part of a rotating shaft of the shifting wheel in a rotating way, a coupler with an output end rotating shaft coaxial with the rotating shaft of the shifting wheel, and a second belt transmission mechanism arranged between the limiting disc and the internal thread sleeve, wherein shafts of two belt pulleys of the second belt transmission mechanism are coaxial with the shaft of the limiting disc and the shaft of the internal thread sleeve respectively; one belt pulley of the second belt transmission mechanism is sleeved and fixed on the rotating shaft of the limiting disc, and the other belt pulley of the second belt transmission mechanism is sleeved and fixed on the same surface of the outer circle of the internal thread sleeve;
The limiting disc comprises a limiting disc body, limiting grooves which are arranged on the bottom surface of the limiting disc body and are close to the edge and are connected end to end, wherein the end to end connected curves consist of two sections of circular arcs which are concentric with the limiting disc body respectively and coincide with central angles, two sections of arc lines which are connected between the corresponding end parts of the two sections of circular arcs respectively and are tangential to the two sections of circular arcs, and a plurality of limiting columns which are uniformly arranged on the limiting disc body between the limiting grooves;
the limiting columns are meshed with the shifting wheels, and one end of a rotating shaft of each shifting wheel is matched with the limiting groove;
The coupler comprises a cross rod and two U-shaped connecting pieces which are mutually perpendicular and respectively arranged on the cross rod; two side plates of one U-shaped connecting piece are respectively matched with two end parts of a cross rod of the cross rod in a sliding manner, and two side plates of the other U-shaped connecting piece are respectively matched with two end parts of a longitudinal rod of the cross rod in a sliding manner; the middle part of the closed end of one U-shaped connecting piece is provided with the input end of the coupler, the middle part of the closed end of the other U-shaped connecting piece is provided with the output end of the coupler, and the axis of the input end of the coupler is parallel to the axis of the output end.
The stirring unit also comprises a linkage mechanism arranged between the shaking component and the stirring driving shaft, so that the angle between the axis of the stirring sleeve roller and the stirring driving shaft can be adjusted in the stirring process, the number of motors can be reduced, and the energy consumption can be saved.
The invention is characterized in that the linkage mechanism comprises a driving plate which is sleeved on the stirring driving shaft and is coaxial with the driving plate, and a grooved wheel which is coaxial with the input end of the coupler, so that intermittent linkage between the reciprocating rotation mechanism and the stirring driving shaft can be realized, the stirring sleeve roller can be fully turned and stirred when the angle between the axis of the stirring sleeve roller and the stirring driving shaft is changed, and the stirring efficiency is improved.
The stirring driving shaft comprises a shaft body, shaking parts which are oppositely arranged on two sides of the same circular surface in the middle of the shaft body along the axial direction, first hinge holes which are arranged in the middle of the shaft body along the radial direction and penetrate through two side surfaces of the shaking parts, a sliding part which is arranged at one end part of the shaft body, and a connecting shaft which is arranged on the end surface of the shaft body and is coaxial with the shaft body; the connecting shaft is arranged at the end part close to the sliding part;
The stirring sleeve roller comprises a roller body, a shaking through hole and a second hinge hole, wherein the roller body is arranged at the center of the roller body along an axis, penetrates through two end surfaces of the shaking through hole, is arranged in the middle of the roller body along the radial direction, and is provided with a first hinge seat on one end surface of the roller body;
the traction sleeve comprises a traction sleeve body provided with sliding through holes penetrating through two end faces of the traction sleeve body along an axis, a limiting part arranged on the circumferential surface of the middle part of the traction sleeve body along the same direction, and a second hinging seat arranged on one end face of the traction sleeve body;
The shaking through hole is sleeved outside the shaking part, and the inner wall of the shaking through hole is matched with the outer wall of the shaking part; the first hinge hole is matched with the second hinge hole; the sliding part penetrates through the sliding through hole; the driving plate is sleeved and fixed on the connecting shaft; the first hinging seat and the second hinging seat are respectively hinged with two end parts of the first connecting rod; the limiting part is buckled with one end of the adjusting piece.
The invention is characterized in that the manure outlet unit comprises a manure outlet window arranged on the manure outlet of the closed tank and a manure outlet control component for controlling the manure outlet window to be opened and closed.
The manure outlet window is characterized by comprising a window frame fixed on the bottom surface of the manure outlet, two ends of the window frame are respectively hinged with two ends of the window frame, and a plurality of window plates are uniformly arranged on the window frame;
the manure outlet control assembly comprises a first linkage rod hinged with the same end part of each window plate respectively, a second linkage rod hinged with the other end part of each window plate respectively, an air cylinder fixed on the outer wall of the closed tank, a connecting piece fixed on the end part of a piston rod of the air cylinder, and a second connecting rod with one end part on the connecting piece and the other end part on the first linkage rod.
The duck manure low-pressure drying system is characterized by further comprising a gas treatment unit which is communicated with the air exhaust component, so that the environment pollution caused by the extracted gas can be prevented.
The invention is practically used: when the low-pressure drying operation of the duck manure is needed, firstly ensuring that the manure outlet unit is in a closed state, secondly adding manure at a manure adding port, and then closing the manure adding port to seal the closed tank; vacuumizing the closed tank by using an air extraction component, starting a driving motor, driving a plurality of stirring driving shafts to rotate simultaneously under the driving of a first belt transmission mechanism, enabling the stirring sleeve roller and the axes of the stirring driving shafts to form a one-degree angle, and rotating together with the stirring driving shafts, and stirring duck manure by using a roller shaft grid;
Meanwhile, the driving plate synchronously rotates along with the stirring driving shaft, the stirring grooved wheel intermittently rotates, the rotating shaft of the stirring wheel rotates along the limiting groove under the action of the coupler, the rotating shaft of the stirring wheel drives the sliding block to move back and forth, the stirring wheel limiting disc rotates back and forth, the internal thread sleeve is driven to rotate back and forth under the action of the second belt transmission mechanism, the adjusting piece drives the traction sleeve buckled with the adjusting piece to slide back and forth along the axial direction of the stirring driving shaft, and the axial angle between the stirring sleeve roller and the stirring driving shaft is changed under the drive of the first connecting rod;
After the low-pressure drying operation is finished, the driving motor is closed, the air inflation component is used for inflating the closed tank, the air inflation component is the same as external air pressure, the air cylinder is started, the piston rod pushes the connecting piece and drives the second connecting rod to move, the first linkage rod is driven to drive the window plate to rotate along the hinge shaft, and the manure discharge unit is started to perform manure discharge operation.
The beneficial effects of the invention are as follows: the invention is provided with the air extraction unit and the stirring unit, so that the high-efficiency dehydration treatment of the duck manure can be realized, the sewage treatment problem is not required to be considered after the treatment, the process route is short, the rapid collection of the duck manure after the treatment can be realized by combining the air charging unit and the manure discharging unit, and the treatment cost is saved; the stirring unit with the shaking component is arranged, so that the stirring sleeve roller can shake along the stirring driving shaft when rotating, and the duck manure can be stirred and stirred simultaneously along the axial direction, the radial direction and the same direction of the stirring driving shaft at each time, the movement amplitude of the duck manure is improved, and the drying effect is further improved; the reciprocating rotating mechanism is arranged, so that the angle between the axis of the stirring sleeve roller and the stirring driving shaft can be adjusted, and the stirring amplitude during stirring is adjusted; the linkage mechanism is arranged, so that the angle between the axis of the stirring sleeve roller and the stirring driving shaft can be adjusted in the stirring process, the number of motors can be reduced, and the energy consumption is saved; the mechanism of the driving plate and the grooved pulley is used as a linkage mechanism, so that intermittent linkage between the reciprocating rotating mechanism and the stirring driving shaft can be realized, the stirring sleeve roller can be fully turned and stirred when the angle between the axis of the stirring sleeve roller and the stirring driving shaft is changed, and the stirring efficiency is improved; the gas treatment unit is arranged, so that the pumped gas can be prevented from polluting the environment.
Drawings
Fig. 1 is a schematic view of the appearance structure of the present invention.
Fig. 2 is a schematic view of the structure of the present invention taken along the centerline of the closed tank.
Fig. 3 is a schematic partial structure of the stirring unit in the present invention.
FIG. 4 is a schematic view of the structure of the stirring driving shaft in the invention.
FIG. 5 is a schematic view of the structure of a stirring sleeve in the present invention.
Fig. 6 is a schematic structural view of the traction jacket of the present invention.
Fig. 7 is a schematic structural view of a reciprocating rotary mechanism in the present invention.
Fig. 8 is a schematic view of a partial structure of the present invention.
Fig. 9 is a partially enlarged structural view of a in fig. 8.
Wherein, the reference numerals are as follows: 1. a bracket; 2. a closed tank; 3. a manure adding port; 4. an air extracting part; 5. a gas treatment unit; 6. an inflation member; 7. a stirring unit; 701. a stirring drive shaft; 70101. a shaft body; 70102. a shaking part; 70103. a sliding part; 70104. a first hinge hole; 70105. a connecting shaft; 702. stirring sleeve roller; 70201. a roller body; 70202. shaking the through hole; 70203. a first hinge base; 70204. a second hinge hole; 703. a roller bar; 704. a first belt drive mechanism; 8. a shaking member; 800. a mechanism box; 801. a traction sleeve; 80101. a traction sleeve body; 80102. a limit part; 80103. a sliding through hole; 80104. the second hinge seat; 802. a first link; 803. an adjusting member; 804. an internal thread sleeve; 9. a manure discharge unit; 901. a window panel; 902. a window frame; 903. a first linkage rod; 904. a connecting piece; 905. a second linkage rod; 906. a second link; 907. a cylinder; 10. a reciprocating rotation mechanism; 1001. a limiting disc; 100101, spacing posts; 10102. a limit groove; 1002. a thumb wheel; 1003. a slide block; 1004. a cross bar; 1005. a U-shaped connecting piece; 1006. a second belt drive mechanism; 1101. a dial; 1102. a sheave.
Detailed Description
In order to clearly illustrate the technical characteristics of the scheme, the scheme is explained below through a specific embodiment.
Referring to fig. 1 to 9, the embodiment of the invention provides a low-pressure drying system for duck manure, which comprises a closed tank 2 with a manure adding port 3 at the top and a manure outlet at the bottom, a bracket 1 arranged at the bottom of the closed tank 2, an air extracting component 4 and an air charging component 6 respectively arranged at two ends of the top of the closed tank 2, a stirring unit 7 penetrating two ends of the closed tank 2 and arranged in the middle of the closed tank 2, and a manure outlet unit 9 arranged on the manure outlet of the closed tank 2 and sealing the manure outlet; the air extraction component 4 is arranged, so that air in the closed tank 2 can be extracted to be vacuum, the air pressure in the closed tank 2 is reduced, the boiling point of water in the duck manure is reduced in a low-pressure environment, and low-temperature boiling is realized, thereby improving the evaporation efficiency and realizing low-temperature drying of the duck manure under low energy consumption;
The manure adding port 3 is provided with a manure adding cover for sealing the manure adding port, and when the low-pressure drying operation is carried out, the manure adding cover and the manure outlet unit 9 are closed; the manure discharging unit 9 can be used for discharging manure when being opened, so that the efficient dehydration treatment of the duck manure can be realized, the sewage treatment problem is not needed to be considered after the treatment, and the treatment cost is saved.
The invention is characterized in that the stirring unit 7 comprises a plurality of stirring driving shafts 701 which are mutually parallel and respectively penetrate through two ends of the closed tank 2, a plurality of stirring sleeve rollers 702 which are respectively sleeved outside each stirring driving shaft 701 and are hinged in the middle of the corresponding stirring driving shaft 701 along the radial direction in the middle, a plurality of roller shaft grids 703 which are respectively arranged on the outer side surface of each stirring sleeve roller 702, a shaking part 8 which is respectively arranged between each stirring sleeve roller 702 and the corresponding stirring driving shaft 701, and a first belt transmission mechanism 704 which is arranged among the plurality of stirring driving shafts 701; as the stirring sleeve roller 702 shakes along the stirring driving shaft 701 when rotating, duck manure in the closed tank 2 can be stirred along the stirring driving shaft every time
701 Are stirred by stirring in the axial direction, the radial direction and the same direction and three directions simultaneously, so that the movement range of the duck manure in the closed tank 2 is improved, and the drying effect is further improved.
A mechanism box 800 is arranged outside the shaking component 8;
one of the agitator drive shafts 701 is coaxial with an output shaft of a drive motor provided at one end of the agitator drive shaft 701.
The shaking component 8 comprises a traction sleeve 801 which is sleeved at one end part of the stirring driving shaft 701 and is mutually matched with the stirring driving shaft 701 in a sliding manner along the axial direction, a first connecting rod 802 which is respectively hinged on the stirring sleeve roller 702 and the traction sleeve 801 at the two ends, an internal thread sleeve 804 which is mutually matched with the mechanism box 800 in a rotating manner along the axial direction, one end part of the shaking component is mutually buckled with the traction sleeve 801, the middle part of the shaking component is mutually matched with the mechanism box 800 in a sliding manner along the axial direction, the other end part of the shaking component is mutually matched with the internal thread sleeve 804 in a threaded manner, and a reciprocating rotating mechanism 10 which controls the internal thread sleeve 804 can adjust the angle between the axial line of the stirring sleeve roller 702 and the stirring driving shaft 701 so as to adjust the stirring range during stirring.
The invention is also characterized in that the reciprocating rotation mechanism 10 comprises a limit disc 1001, a shifting wheel 1002 matched with the limit disc 1001, a sliding block matched with the mechanism box 800 in a sliding way and matched with one end part of the rotating shaft of the shifting wheel 1002 in a rotating way
1003, A coupling with the output end rotating shaft coaxial with the rotating shaft of the thumb wheel 1002, and a second belt transmission mechanism 1006 arranged between the limit disc 1001 and the internal thread sleeve 804;
The limit disc 1001 comprises a limit disc body, a limit groove 100102 which is arranged on the bottom surface of the limit disc body and is close to the edge and is in a curve shape connected end to end, wherein the curve connected end to end consists of two sections of circular arcs which are concentric with the limit disc body respectively and coincide with central angles, two sections of arc lines which are connected between corresponding ends of the two sections of circular arcs respectively and are tangential with the two sections of circular arcs, and a plurality of limit columns 100101 which are uniformly arranged on the limit disc body between the limit grooves 100102;
a plurality of limit posts 100101 are meshed with the shifting wheel 1002, and one end of a rotating shaft of the shifting wheel 1002 is matched with the limit groove 100102;
The coupler comprises a cross bar 1004 and two U-shaped connecting pieces 1005 which are mutually perpendicular and respectively arranged on the cross bar 1004; two side plates of one U-shaped connecting piece 1005 are respectively matched with two end parts of a cross rod of the cross rod 1004 in a sliding manner, and two side plates of the other U-shaped connecting piece 1005 are respectively matched with two end parts of a longitudinal rod of the cross rod 1004 in a sliding manner; the middle part of the closed end of one U-shaped connecting piece 1005 is provided with the input end of the coupler, and the middle part of the closed end of the other U-shaped connecting piece 1005 is provided with the output end of the coupler, and the axis of the input end of the coupler is parallel to the axis of the output end.
The invention is characterized in that the stirring unit 7 further comprises a linkage mechanism arranged between the shaking component 8 and the stirring driving shaft 701, so that the angle between the axis of the stirring sleeve roller 702 and the stirring driving shaft 701 can be adjusted in the stirring process, the number of motors can be reduced, and the energy consumption can be saved.
The invention is also characterized in that the linkage mechanism comprises a driving plate 1101 which is sleeved on the stirring driving shaft 701 and is coaxial with the stirring driving shaft, and a grooved wheel 1102 which is coaxial with the input end of the coupler, so that intermittent linkage between the reciprocating rotation mechanism 10 and the stirring driving shaft 701 can be realized, the stirring sleeve roller 702 can be fully turned and stirred when the angle between the axis of the stirring sleeve roller 702 and the stirring driving shaft 701 is changed, and the stirring efficiency is improved.
The stirring driving shaft 701 has the specific characteristics that the stirring driving shaft 701 comprises a shaft body 70101, shaking parts 70102 which are oppositely arranged on two sides of the same circular surface in the middle of the shaft body 70101 along the axial direction, first hinge holes 70104 which are arranged in the middle of the shaft body 70101 along the radial direction and penetrate through two side surfaces of the shaking parts 70102, a sliding part 70103 which is arranged at one end part of the shaft body 70101, and a connecting shaft 70105 which is arranged on the end surface of the shaft body 70101 and is coaxial with the shaft body 70101; the connection shaft 70105 is provided at an end portion near the sliding portion 70103;
the stirring sleeve roller 702 comprises a roller body 70201, a shaking through hole 70202 which is formed in the center of the roller body 70201 along an axis and penetrates through two end surfaces of the roller body 70201, a second hinge hole 70204 which is formed in the middle of the roller body 70201 along the radial direction, and a first hinge seat 70203 which is arranged on one end surface of the roller body 70201;
The traction sleeve 801 comprises a traction sleeve body 80101 provided with sliding through holes 80103 penetrating through two end faces along an axis, a limit part 80102 arranged on the circumferential surface of the middle part of the traction sleeve body 80101 along the same direction along a circle, and a second hinge seat 80104 arranged on one end face of the traction sleeve body 80101;
the shaking through hole 70202 is sleeved outside the shaking portion 70102, and the inner wall of the shaking through hole 70202 is matched with the outer wall of the shaking portion 70102;
The first hinge hole 70104 mates with the second hinge hole 70204; the sliding portion 70103 penetrates the sliding through hole 80103;
a fixed driving plate 1101 is sleeved on the connecting shaft 70105;
The first hinge seat 70203 and the second hinge seat 80104 are respectively hinged with two end parts of the first connecting rod 802; the limiting portion 80102 is engaged with one end of the adjusting member 803.
The invention is also characterized in that the manure outlet unit comprises a manure outlet window arranged on the manure outlet of the closed tank 2 and a manure outlet control component for controlling the manure outlet window to open and close.
The invention is characterized in that the manure outlet window consists of a window frame 902 fixed on the bottom surface of the manure outlet, two ends of the window frame 902 are respectively hinged at two ends of the window frame 902, and a plurality of window plates 901 are uniformly arranged on the window frame 902;
The manure discharging control assembly comprises a first linkage rod 903 hinged with the same end of each window plate 901 respectively, a second linkage rod 905 hinged with the other end of each window plate 901 respectively, a cylinder 907 fixed on the outer wall of the closed tank 2, a connecting piece 904 fixed on the end of a piston rod of the cylinder 907, and a second connecting rod 906 with one end on the connecting piece 904 and the other end on the first linkage rod 903.
The duck manure low-pressure drying system is characterized by further comprising a gas treatment unit 5 which is communicated with the air extraction component 4, so that the extracted gas can be prevented from polluting the environment.
The invention is practically used: when the low-pressure drying operation of the duck manure is needed, firstly, ensuring that the manure outlet unit is in a closed state, secondly, adding manure at the manure adding port 3, and then closing the manure adding port 3 to seal the closed tank 2; vacuumizing the closed tank 2 by using an air extraction part 4, starting a driving motor, driving a plurality of stirring driving shafts 701 to rotate simultaneously under the driving of a first belt transmission mechanism 704, enabling a stirring sleeve roller 702 to form a one-degree angle with the axis of the stirring driving shafts 701, rotating together with the stirring driving shafts 701, and stirring duck manure by a roller shaft grid 703;
Meanwhile, the driving plate 1101 rotates synchronously with the stirring driving shaft 701, the stirring grooved wheel 1102 rotates intermittently, under the action of the coupler, the rotating shaft rotates with the driving wheel 1002 coaxial with the axis of the output end of the coupler, the rotating shaft of the driving wheel 1002 moves along the limiting groove 100102, the rotating shaft of the driving wheel 1002 drives the sliding block 1003 to move back and forth, the limiting disc 1001 of the driving wheel 1002 rotates back and forth, under the action of the second belt transmission mechanism 1006, the internal thread sleeve 804 is driven to rotate back and forth, and then the adjusting piece 803 drives the traction sleeve 801 buckled with the internal thread sleeve 804 to slide back and forth along the axis direction of the stirring driving shaft 701, and under the driving of the first connecting rod 802, the axis angle between the stirring sleeve roller 702 and the stirring driving shaft 701 is changed;
after the low-pressure drying operation is finished, the driving motor is turned off, the air charging component 6 is used for charging the sealed tank 2, the air charging component is the same as the external air pressure, the air cylinder 907 is turned on, the piston rod pushes the connecting piece 904 and further drives the second connecting rod 906 to move, the first linkage rod 903 is driven to drive the window plate 901 to rotate along the hinge shaft, and the manure discharging unit 9 is turned on for manure discharging operation.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.