阅读说明：本技术 油茶果壳仁浮选分离装置及其浮选分离方法 (Oil tea fruit shell and kernel flotation separation device and oil tea fruit shell and kernel flotation separation method ) 是由 毛明 陈建能 卞贤炳 胡润泽 徐袁翔 李龙辉 黄塬塬 于 2021-01-11 设计创作，主要内容包括：本发明公开了油茶果壳仁浮选分离装置及其浮选分离方法。目前缺少能高效实现油茶果壳仁分选的装置。本发明油茶果壳仁浮选分离装置,包括机架、浮选外槽组件、浮选内槽组件、提升机、水循环装置和曲轴连杆驱动装置；外槽体两端顶部均设有果壳出料通道,两端底部均设有果仁出料通道；两个浮选内槽组件并排且背对置于外槽体内；外槽体两侧均设有提升机,每个提升机的输出端位于一个浮选内槽组件上方。本发明的一个浮选内槽组件进行分选作业时,另一个浮选内槽组件进行油茶果果仁输出以及排沙,分选效率高；两个浮选内槽组件交替工作通过曲轴传动实现；两个浮选内槽组件的浮选分离用溶液循环使用,从而节约用水。(The invention discloses a camellia oleifera fruit shell and kernel flotation separation device and a flotation separation method thereof. At present, a device capable of efficiently sorting oil-tea camellia shells and kernels is lacked. The invention relates to a camellia oleifera fruit shell and kernel flotation separation device, which comprises a rack, a flotation outer tank assembly, a flotation inner tank assembly, a lifter, a water circulation device and a crankshaft connecting rod driving device, wherein the rack is provided with a floating outer tank assembly; the tops of two ends of the outer groove body are respectively provided with a shell discharging channel, and the bottoms of two ends are respectively provided with a nut discharging channel; the two flotation inner tank assemblies are arranged in parallel and opposite to each other in the outer tank body; and the two sides of the outer tank body are provided with a lifting machine, and the output end of each lifting machine is positioned above one flotation inner tank assembly. When one internal flotation tank assembly is used for sorting, the other internal flotation tank assembly is used for outputting kernels of the oil-tea camellia fruits and removing sand, so that the sorting efficiency is high; the two flotation inner groove assemblies work alternately and are driven by a crankshaft; the solution for flotation separation of the two flotation inner tank assemblies is recycled, so that water is saved.)

1. Oil tea fruit shell benevolence flotation separation device, including frame, flotation device, lifting machine, water circle device and bent axle connecting rod drive arrangement, its characterized in that: the flotation device comprises a flotation outer tank assembly and a flotation inner tank assembly; the flotation outer tank assembly comprises an outer tank body, a shell discharge channel and a nut discharge channel; the tops of two ends of the outer groove body are respectively provided with a shell discharging channel, and the bottoms of two ends are respectively provided with a nut discharging channel; each nut discharging channel is positioned right below the corresponding nut shell discharging channel; the two flotation inner tank assemblies are arranged in parallel and opposite to each other in the outer tank body; the two sides of the outer tank body are provided with a lifter, and the output end of each lifter is positioned above one flotation inner tank assembly;

the flotation inner tank assembly comprises an inner tank body, a vertical stirrer driving motor, a stirrer support, a stirrer, a liquid level meter, an arc-shaped filter screen, a spring, an upper limiting plate, a lower limiting plate, a rubber door plate, a door frame, a bent pipe, a nozzle support and a spray head; the stirrer bracket is fixed at the top of the inner tank body; the base of the vertical stirrer driving motor is fixed on the stirrer support, and an output shaft of the vertical stirrer driving motor is connected with the stirrer through a first coupler; the stirrer is arranged in the inner groove body; the bottom of the inner cavity of the inner groove body is provided with silt holes and covered with an arc-shaped filter screen; one end of the arc-shaped filter screen, which is close to the silt hole, is lower than the other end; one end of the inner groove body is provided with a shell discharge port and a nut discharge port, and the nut discharge port is positioned right below the shell discharge port; the inner groove body is fixed with door frames at both sides of the nut discharge hole; the tops of the two door frames are respectively fixed with two ends of the upper limiting plate, and the bottoms of the two door frames are respectively fixed with two ends of the lower limiting plate; the bottom of the upper limiting plate is higher than the side wall of the top of the nut discharge hole; one end of the spring is fixed with the upper limiting plate, and the other end of the spring is fixed with the rubber door plate; the rubber door plate covers the nut discharge hole; a bending pipe is fixed at the top of the inner cavity of the inner groove body, a plurality of nozzle supports are fixed on the bending pipe, and the nozzle supports are only arranged on the inner side walls of the two sides of the fruit shell discharge port and the inner side wall of the other end of the inner groove body opposite to the fruit shell discharge port; each nozzle support is fixed with a spray head; the nozzle of the spray head is communicated with the inner cavity of the bending pipe; nozzles of all the nozzles are aligned with the nut shell discharge hole; a liquid level meter is also fixed in the inner cavity of the inner groove body; an optical axis which is horizontally arranged is fixed on the bottom surface of the inner groove body; the inner groove bodies of the two flotation inner groove assemblies and the outer groove body form a sliding pair along the vertical direction; the shell discharge ports of the two flotation inner tank assemblies are respectively aligned with the two shell discharge channels of the outer tank body, and the input ends of the shell discharge channels are fixedly provided with rubber cushion blocks; the nut discharge ports of the two flotation inner groove assemblies are respectively aligned with the two nut discharge channels of the outer groove body, and the door plate lifting plates are fixed on the inner wall of the outer groove body at the input ends of the two nut discharge channels; the input end of the nut discharging channel is fixed with a rubber cushion block;

the water circulation device comprises a water tank, a brine storage tank, a liquid distribution tank, a densimeter, a conveying water pump, a waste treatment tank, a water inlet pipe, a water outlet pipe, a corrugated pipe, a sewage pump and a valve; the liquid outlets of the water tank and the brine storage tank are respectively connected with two liquid inlets of the liquid distribution tank, and valves are arranged at the liquid outlets of the water tank and the brine storage tank; the densimeter is fixed on the liquid distribution box, and a measuring head of the densimeter extends into the liquid distribution box; two liquid outlets of the liquid distribution box are respectively connected with liquid inlets of two conveying water pumps, and the liquid outlets of the two conveying water pumps are respectively connected with one ends of two water inlet pipes; the other ends of the two water inlet pipes are respectively connected with one ends of the bent pipes of the two flotation inner groove assemblies, and the other ends of the bent pipes of the two flotation inner groove assemblies are respectively connected with one ends of the two water outlet pipes; the other ends of the two water outlet pipes are respectively connected with the liquid inlets of the two waste treatment boxes; a valve is arranged on the water outlet pipe; the silt holes at the bottoms of the inner cavity bodies of the two flotation inner groove assemblies are respectively connected with one ends of two sewage discharge pipes, and the other ends of the two sewage discharge pipes are respectively connected with liquid inlets of two sewage discharge pumps; the liquid outlets of the two sewage discharge pumps are respectively connected with the liquid inlets of the two waste treatment tanks; one ends of the two corrugated pipes are respectively communicated with the inner cavity of the inner groove body of the two flotation inner groove assemblies, and the other ends of the two corrugated pipes are connected through an electric valve;

the crankshaft connecting rod driving device comprises a crankshaft bracket, a deep groove ball bearing, a crankshaft, a connecting rod and a crankshaft driving motor; the base of the crankshaft driving motor is fixed on the frame, and an output shaft of the crankshaft driving motor is connected with one end of the crankshaft through a second coupling; the crankshaft is supported on a crankshaft bracket through a deep groove ball bearing, and the crankshaft bracket is fixed with the rack; two crankshaft sections of the crankshaft are respectively hinged with one ends of two connecting rods, and the other ends of the two connecting rods are respectively hinged with the bottom optical axes of the inner groove bodies of the two flotation inner groove assemblies.

2. The oil tea fruit shell and kernel flotation separation device according to claim 1, characterized in that: the lifting machine, the vertical stirrer driving motor, the conveying water pump, the sewage draining water pump, the electric valve and the crankshaft driving motor are all controlled by a controller, and the signal output end of the liquid level meter is connected with the controller.

3. The oil tea fruit shell and kernel flotation separation device according to claim 1, characterized in that: a shell collecting box is arranged below the shell discharging channel, and a nut collecting box is arranged below the nut discharging channel; the shell collecting box is arranged on the table surface of the rack, and the kernel collecting box is arranged on the partition plate of the rack; the partition board is positioned at the bottom of the table top.

4. The oil tea fruit shell and kernel flotation separation device according to claim 1, characterized in that: a lifting driving motor of the lifter is fixed at the bottom of a lifter bracket, and a conveying belt of the lifter is driven by the lifting driving motor; the lifting driving motor is controlled by the controller; baffles which are distributed at intervals are distributed on a conveying belt of the hoister; both sides of a conveying belt of the elevator are provided with baffles; the output end of the elevator is inclined downwards.

5. The oil tea fruit shell and kernel flotation separation device according to claim 1, characterized in that: the water inlet pipe, the water outlet pipe and the sewage discharge pipe are made of elastic materials.

6. The oil tea fruit shell and kernel flotation separation device according to claim 1, characterized in that: the dovetail groove formed in the inner side wall of the outer groove body and the lug which is integrally formed on the inner groove body and matched with the dovetail groove form a sliding pair.

7. The oil tea fruit shell and kernel flotation separation device according to claim 1, characterized in that: and a space is arranged between the end surface of the bottom end of the stirrer and the arc-shaped filter screen.

8. The oil tea fruit shell and kernel flotation separation device according to claim 1, characterized in that: and protective paint is sprayed on the surface of the arc-shaped filter screen.

9. The flotation separation method of the camellia oleifera fruit shell and kernel flotation separation device according to any one of claims 1 to 8, wherein: the method comprises the following specific steps:

opening valves at liquid outlets of a water tank and a saline water storage tank to enable water in the water tank and saline water in the saline water storage tank to flow into a liquid distribution tank for mixing, and closing the valves at the liquid outlets of the water tank and the saline water storage tank when a densimeter detects that the density of the saline water in the liquid distribution tank reaches a set value;

step two, starting a conveying water pump corresponding to the flotation inner tank assembly at a high position, and conveying the saline water in the liquid distribution box to a bent pipe of the flotation inner tank assembly through a water inlet pipe; each spray head on the bent pipe sprays saline water to the inner groove body; when the liquid level meter detects that the liquid level reaches a set height, the elevator above the flotation inner tank assembly conveys the crushed mixture of the oil-tea camellia shells and kernels to the inner tank body of the flotation inner tank assembly; stopping the operation of the hoister after the set time; at the moment, a vertical stirrer driving motor of the flotation inner tank assembly drives a stirrer to start working, so that the solution and the oil-tea camellia fruit shell and kernel mixture are driven to rotate together to separate oil-tea camellia fruit kernels from oil-tea camellia fruit shells, the oil-tea camellia fruit shells float above the inner tank body and are discharged from a shell discharge port to a shell discharge channel by water flow sprayed by a spray head and output; the oil tea fruit nuts fall on the arc filter screen due to the fact that the density of the oil tea fruit nuts is larger than the density of the solution, and roll and gather at the nut discharge port; the silt falls down and sinks into the bottom of the inner tank body through the arc-shaped filter screen and is collected at the silt hole of the inner tank body; the vertical stirrer drives the motor to run for a set time and then stops working, and meanwhile, the conveying water pump of the flotation inner tank assembly stops working;

step three, opening an electric valve on the corrugated pipe, enabling the solution to flow into an inner groove body of the low-level flotation inner groove assembly through the corrugated pipe under the action of gravity, closing the electric valve when a liquid level meter of the high-level flotation inner groove assembly detects that the liquid level reaches a set minimum value, driving a crankshaft by a crankshaft driving motor, and driving two flotation inner groove assemblies to carry out high-low exchange by the crankshaft; after exchange, the rubber door plate of the lower flotation inner groove assembly is jacked up by the door plate lifting plate on the inner wall of the outer groove body, the spring is compressed, and the oil-tea camellia fruit kernels roll down to the kernel discharge channel from the kernel discharge port to be output; meanwhile, a sewage discharge pump corresponding to the lower flotation inner tank assembly starts to work, and the silt is pumped out and discharged into a waste treatment box corresponding to the lower flotation inner tank assembly through a sewage discharge pipe and the sewage discharge pump;

and step four, repeating the step two and the step three to realize continuous operation.

10. The flotation separation method of the camellia oleifera fruit shell and kernel flotation separation device according to claim 9, wherein: and (5) manually executing the step one at any time, and compensating the solution in the solution distribution box.

Technical Field

The invention belongs to the technical field of agricultural machinery, and particularly relates to a camellia oleifera fruit shell and kernel flotation separation device and a flotation separation method thereof.

Background

Tea oil is popular with people at present as pure natural woody edible oil, while China is used as an oil material in large countries, 90% of the tea oil in the world comes from China at present, and part of southern regions even use tea-oil camellia as a main economic crop. Tea oil is mainly extracted from oil tea fruit kernels, and how to separate the oil tea fruit shells and kernels with high efficiency and high quality becomes a key problem for improving the quality of the tea oil.

At present, the research on the oil tea fruit shell and kernel sorting device in China is not complete, and the main sorting modes comprise a spray gun method, a winnowing method, a flotation method, a color sorting method and the like. For example, patent CN104055195A discloses a scheme of using a spray gun to spray at a high speed to make the shells and kernels of oil-tea camellia fruits collide and separate under the action of compressed air, and in the scheme, impurities such as silt may also enter the spray gun, and if the high-speed collision occurs, the device is damaged, and meanwhile, the quality of subsequent tea oil cannot be ensured. Also like the application of a color selector in the shelling and cleaning of the oil-tea camellia fruits published by Huyifei et al, the color selector is mainly used for sorting the oil-tea camellia fruit shells and kernels by utilizing the difference of the colors of the shells and the kernels, but the method has higher requirements on an external light source and also has higher requirements on the oil-tea camellia fruits, and if spots or silt exist outside the shells, the colors are similar to the kernels, so that the oil-tea camellia fruits can be mistakenly used as waste materials for treatment, and the final sorting effect is influenced.

Disclosure of Invention

The invention aims to provide a camellia oleifera fruit shell and kernel flotation separation device and a camellia oleifera fruit shell and kernel flotation separation method aiming at the defects of the prior art.

The invention relates to a camellia oleifera fruit shell and kernel flotation separation device, which comprises a rack, a flotation device, a lifter, a water circulation device and a crankshaft connecting rod driving device; the flotation device comprises a flotation outer tank assembly and a flotation inner tank assembly; the flotation outer tank assembly comprises an outer tank body, a shell discharge channel and a nut discharge channel; the tops of two ends of the outer groove body are respectively provided with a shell discharging channel, and the bottoms of two ends are respectively provided with a nut discharging channel; each nut discharging channel is positioned right below the corresponding nut shell discharging channel; the two flotation inner tank assemblies are arranged in parallel and opposite to each other in the outer tank body; and the two sides of the outer tank body are provided with a lifting machine, and the output end of each lifting machine is positioned above one flotation inner tank assembly.

The flotation inner tank assembly comprises an inner tank body, a vertical stirrer driving motor, a stirrer support, a stirrer, a liquid level meter, an arc-shaped filter screen, a spring, an upper limiting plate, a lower limiting plate, a rubber door plate, a door frame, a bent pipe, a nozzle support and a spray head; the stirrer bracket is fixed at the top of the inner tank body; the base of the vertical stirrer driving motor is fixed on the stirrer support, and an output shaft of the vertical stirrer driving motor is connected with the stirrer through a first coupler; the stirrer is arranged in the inner groove body; the bottom of the inner cavity of the inner groove body is provided with silt holes and covered with an arc-shaped filter screen; one end of the arc-shaped filter screen, which is close to the silt hole, is lower than the other end; one end of the inner groove body is provided with a shell discharge port and a nut discharge port, and the nut discharge port is positioned right below the shell discharge port; the inner groove body is fixed with door frames at both sides of the nut discharge hole; the tops of the two door frames are respectively fixed with two ends of the upper limiting plate, and the bottoms of the two door frames are respectively fixed with two ends of the lower limiting plate; the bottom of the upper limiting plate is higher than the side wall of the top of the nut discharge hole; one end of the spring is fixed with the upper limiting plate, and the other end of the spring is fixed with the rubber door plate; the rubber door plate covers the nut discharge hole; a bending pipe is fixed at the top of the inner cavity of the inner groove body, a plurality of nozzle supports are fixed on the bending pipe, and the nozzle supports are only arranged on the inner side walls of the two sides of the fruit shell discharge port and the inner side wall of the other end of the inner groove body opposite to the fruit shell discharge port; each nozzle support is fixed with a spray head; the nozzle of the spray head is communicated with the inner cavity of the bending pipe; nozzles of all the nozzles are aligned with the nut shell discharge hole; a liquid level meter is also fixed in the inner cavity of the inner groove body; an optical axis which is horizontally arranged is fixed on the bottom surface of the inner groove body; the inner groove bodies of the two flotation inner groove assemblies and the outer groove body form a sliding pair along the vertical direction; the shell discharge ports of the two flotation inner tank assemblies are respectively aligned with the two shell discharge channels of the outer tank body, and the input ends of the shell discharge channels are fixedly provided with rubber cushion blocks; the nut discharge ports of the two flotation inner groove assemblies are respectively aligned with the two nut discharge channels of the outer groove body, and the door plate lifting plates are fixed on the inner wall of the outer groove body at the input ends of the two nut discharge channels; the input end of the nut discharging channel is fixed with a rubber cushion block.

The water circulation device comprises a water tank, a brine storage tank, a liquid distribution tank, a densimeter, a conveying water pump, a waste treatment tank, a water inlet pipe, a water outlet pipe, a corrugated pipe, a sewage pump and a valve; the liquid outlets of the water tank and the brine storage tank are respectively connected with two liquid inlets of the liquid distribution tank, and valves are arranged at the liquid outlets of the water tank and the brine storage tank; the densimeter is fixed on the liquid distribution box, and a measuring head of the densimeter extends into the liquid distribution box; two liquid outlets of the liquid distribution box are respectively connected with liquid inlets of two conveying water pumps, and the liquid outlets of the two conveying water pumps are respectively connected with one ends of two water inlet pipes; the other ends of the two water inlet pipes are respectively connected with one ends of the bent pipes of the two flotation inner groove assemblies, and the other ends of the bent pipes of the two flotation inner groove assemblies are respectively connected with one ends of the two water outlet pipes; the other ends of the two water outlet pipes are respectively connected with the liquid inlets of the two waste treatment boxes; a valve is arranged on the water outlet pipe; the silt holes at the bottoms of the inner cavity bodies of the two flotation inner groove assemblies are respectively connected with one ends of two sewage discharge pipes, and the other ends of the two sewage discharge pipes are respectively connected with liquid inlets of two sewage discharge pumps; the liquid outlets of the two sewage discharge pumps are respectively connected with the liquid inlets of the two waste treatment tanks; one ends of the two corrugated pipes are respectively communicated with the inner cavity of the inner groove body of the two flotation inner groove assemblies, and the other ends of the two corrugated pipes are connected through an electric valve.

The crankshaft connecting rod driving device comprises a crankshaft bracket, a deep groove ball bearing, a crankshaft, a connecting rod and a crankshaft driving motor; the base of the crankshaft driving motor is fixed on the frame, and an output shaft of the crankshaft driving motor is connected with one end of the crankshaft through a second coupling; the crankshaft is supported on a crankshaft bracket through a deep groove ball bearing, and the crankshaft bracket is fixed with the rack; two crankshaft sections of the crankshaft are respectively hinged with one ends of two connecting rods, and the other ends of the two connecting rods are respectively hinged with the bottom optical axes of the inner groove bodies of the two flotation inner groove assemblies.

Preferably, the hoister, the vertical stirrer driving motor, the conveying water pump, the sewage pump, the electric valve and the crankshaft driving motor are all controlled by a controller, and the signal output end of the liquid level meter is connected with the controller.

Preferably, a shell collecting box is arranged below the shell discharging channel, and a nut collecting box is arranged below the nut discharging channel; the shell collecting box is arranged on the table surface of the rack, and the kernel collecting box is arranged on the partition plate of the rack; the partition board is positioned at the bottom of the table top.

Preferably, a lifting driving motor of the lifter is fixed at the bottom of a lifter bracket, and a conveying belt of the lifter is driven by the lifting driving motor; the lifting driving motor is controlled by the controller; baffles which are distributed at intervals are distributed on a conveying belt of the hoister; both sides of a conveying belt of the elevator are provided with baffles; the output end of the elevator is inclined downwards.

Preferably, the water inlet pipe, the water outlet pipe and the sewage discharge pipe are made of elastic materials.

Preferably, the dovetail groove formed in the inner side wall of the outer groove body and the projection which is integrally formed on the inner groove body and matched with the dovetail groove form a sliding pair.

Preferably, a distance is arranged between the end face of the bottom end of the stirrer and the arc-shaped filter screen.

Preferably, the surface of the arc-shaped filter screen is sprayed with protective paint.

The flotation separation method of the oil tea fruit shell and kernel flotation separation device comprises the following specific steps:

opening valves at the liquid outlet of the water tank and the brine storage tank to enable water in the water tank and brine in the brine storage tank to flow into the liquid distribution tank for mixing, and closing the valves at the liquid outlet of the water tank and the brine storage tank when the densimeter detects that the density of the brine in the liquid distribution tank reaches a set value.

Step two, starting a conveying water pump corresponding to the flotation inner tank assembly at a high position, and conveying the saline water in the liquid distribution box to a bent pipe of the flotation inner tank assembly through a water inlet pipe; each spray head on the bent pipe sprays saline water to the inner groove body; when the liquid level meter detects that the liquid level reaches a set height, the elevator above the flotation inner tank assembly conveys the crushed mixture of the oil-tea camellia shells and kernels to the inner tank body of the flotation inner tank assembly; stopping the operation of the hoister after the set time; at the moment, a vertical stirrer driving motor of the flotation inner tank assembly drives a stirrer to start working, so that the solution and the oil-tea camellia fruit shell and kernel mixture are driven to rotate together to separate oil-tea camellia fruit kernels from oil-tea camellia fruit shells, the oil-tea camellia fruit shells float above the inner tank body and are discharged from a shell discharge port to a shell discharge channel by water flow sprayed by a spray head and output; the oil tea fruit nuts fall on the arc filter screen due to the fact that the density of the oil tea fruit nuts is larger than the density of the solution, and roll and gather at the nut discharge port; the silt falls down and sinks into the bottom of the inner tank body through the arc-shaped filter screen and is collected at the silt hole of the inner tank body. And the vertical stirrer driving motor stops working after running for a set time, and meanwhile, the conveying water pump of the flotation inner tank assembly stops working.

Step three, opening an electric valve on the corrugated pipe, enabling the solution to flow into an inner groove body of the low-level flotation inner groove assembly through the corrugated pipe under the action of gravity, closing the electric valve when a liquid level meter of the high-level flotation inner groove assembly detects that the liquid level reaches a set minimum value, driving a crankshaft by a crankshaft driving motor, and driving two flotation inner groove assemblies to carry out high-low exchange by the crankshaft; after exchange, the rubber door plate of the lower flotation inner groove assembly is jacked up by the door plate lifting plate on the inner wall of the outer groove body, the spring is compressed, and the oil-tea camellia fruit kernels roll down to the kernel discharge channel from the kernel discharge port to be output; simultaneously, the sewage pump corresponding to the lower flotation inner groove assembly starts to work, and the silt is pumped out and is discharged into the waste treatment box corresponding to the lower flotation inner groove assembly through the sewage pipe and the sewage pump.

And step four, repeating the step two and the step three to realize continuous operation.

Preferably, the first step is carried out manually at any time to compensate the solution in the solution distribution tank.

The invention has the beneficial effects that:

1. according to the invention, a unique mode of alternately floating and separating the oil-tea camellia fruit shells and kernels by the double-floating inner tank assemblies is adopted, when one floating inner tank assembly performs the separation operation, the other floating inner tank assembly performs oil-tea camellia fruit kernel output and sand removal treatment, the separation period is shortened, and the separation efficiency is high; the two flotation inner groove assemblies work alternately through crankshaft transmission.

2. According to the invention, after the high-level flotation inner tank assemblies are separated and shells are discharged, the electric valve on the corrugated pipe is opened, and the solution can enter the low-level flotation inner tank assemblies by means of self gravity, so that the solution for flotation separation of the two flotation inner tank assemblies can be recycled, and water is saved.

3. The invention adopts the arc-shaped filter screen, and simultaneously utilizes the stirring effect of the stirrer, thereby realizing the rapid and efficient separation of the shells, the kernels and the silt and effectively removing the shells and the silt.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is another perspective view of the overall structure of the present invention;

FIG. 3 is a perspective view of the construction of the flotation tank assembly of the present invention;

FIG. 4 is a diagram of the operation of one of the two flotation tank assemblies in the upper and lower positions of the invention;

FIG. 5 is a diagram showing another high and low operating conditions of two flotation tank assemblies of the present invention;

FIG. 6 is a schematic view of the arrangement of the arcuate screen within the inner tank of the present invention;

FIG. 7 is a right side view of FIG. 6;

FIG. 8 is a schematic view of the assembly of the nozzle holder and spray head of the present invention.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the oil tea fruit shell and kernel flotation separation device comprises a frame 1, a flotation device, a lifter 7, a water circulation device and a crankshaft connecting rod driving device; the flotation device comprises a flotation outer tank assembly and a flotation inner tank assembly; the flotation outer tank assembly comprises an outer tank body 2, a shell discharge channel 3 and a nut discharge channel 4; the tops of two ends of the outer tank body 2 are respectively provided with a shell discharging channel 3, and the bottoms of two ends are respectively provided with a nut discharging channel 4; each nut discharging channel 4 is positioned right below the corresponding nut shell discharging channel 3; the two flotation inner tank assemblies are arranged in parallel and opposite to each other in the outer tank body 2; and the two sides of the outer tank body 2 are provided with a lifting machine 7, and the output end of each lifting machine 7 is positioned above one flotation inner tank assembly.

As shown in fig. 1, 3 and 8, the flotation inner tank assembly comprises an inner tank body 12, a vertical stirrer driving motor 13, a stirrer support 15, a stirrer 16, a liquid level meter 17, an arc-shaped filter screen 18, a spring 19, an upper limiting plate 20, a lower limiting plate 21, a rubber door plate 22, a door frame 23, a bent pipe, a nozzle support 36 and a spray head 35; the stirrer bracket 15 is fixed on the top of the inner tank body 12; the base of the vertical stirrer driving motor 13 is fixed on the stirrer support 15, and the output shaft of the vertical stirrer driving motor 13 is connected with the stirrer 16 through a first coupling 14; the stirrer 16 is arranged in the inner tank body 12; the bottom of the inner cavity of the inner tank body 12 is provided with silt holes 39 and is covered with an arc-shaped filter screen 18; as shown in fig. 6 and 7, the curved screen 18 is lower at one end near the silt hole 39 than at the other end; a shell discharge port 38 and a nut discharge port are formed in one end of the inner tank body 12, and the nut discharge port is located right below the shell discharge port 38; the inner tank body 12 is fixed with door frames 23 on both sides of the nut discharge hole; the tops of the two door frames 23 are fixed with two ends of the upper limiting plate 20 respectively, and the bottoms of the two door frames are fixed with two ends of the lower limiting plate 21 respectively; the bottom of the upper limiting plate 20 is higher than the side wall of the top of the nut discharge hole; one end of the spring 19 is fixed with the upper limiting plate 20, and the other end is fixed with the rubber door plate 22; the rubber door panel 22 covers the nut discharge hole; a bent pipe is fixed at the top of the inner cavity of the inner tank body 12, a plurality of nozzle supports 36 are fixed on the bent pipe, and the nozzle supports 36 are only arranged on the inner side walls of the two sides of the shell discharge port 38 and the inner side wall of the other end of the inner tank body 12 opposite to the shell discharge port 38; each nozzle support 36 is fixed with a spray head 35; the nozzle 37 of the nozzle 35 is communicated with the inner cavity of the bending pipe; the nozzles 37 of all the spray heads 35 are aligned with the husk discharge port 38; a liquid level meter 17 is also fixed in the inner cavity of the inner tank body 12; an optical axis 44 is fixed on the bottom surface of the inner slot 12 and is horizontally arranged so as to be connected with the connecting rod 43. The inner tank bodies 12 of the two flotation inner tank assemblies and the outer tank body 2 form a sliding pair along the vertical direction; the shell discharge ports 38 of the two flotation inner tank assemblies are respectively aligned with the two shell discharge channels 3 of the outer tank body 2, and the input ends of the shell discharge channels 3 are fixed with rubber cushion blocks 11; the nut discharge ports of the two flotation inner groove assemblies are respectively aligned with the two nut discharge channels 4 of the outer groove body 2, and door plate lifting plates are fixed on the inner wall of the outer groove body 2 at the input ends of the two nut discharge channels 4 and used for lifting the rubber door plate 22 of the flotation inner groove assembly when the flotation inner groove assembly is lowered to the lowest position; the input end of the nut discharging channel 4 is fixed with a rubber cushion block 11.

As shown in fig. 1, 2, 4 and 5, the water circulation device comprises a water tank 24, a brine storage tank 25, a liquor preparation tank 26, a density meter 27, a delivery water pump 28, a waste treatment tank 29, a water inlet pipe 30, a water outlet pipe 31, a corrugated pipe 32, a sewage pump 33 and a valve 34; the liquid outlets of the water tank 24 and the brine storage tank 25 are respectively connected with two liquid inlets of the liquid distribution tank 26, and valves 34 are arranged at the liquid outlets of the water tank 24 and the brine storage tank 25; the densimeter 27 is fixed on the liquid distribution box 26, a measuring head of the densimeter 27 extends into the liquid distribution box 26 and is used for detecting the density of brine in the liquid distribution box 26 so as to adjust the opening size of the valve 34 at the liquid outlet of the water tank 24 and the brine storage tank 25 and enable the density of the brine in the liquid distribution box 26 to reach 0.9-1 g/ml; two liquid outlets of the liquid distribution box 26 are respectively connected with liquid inlets of two conveying water pumps 28, and liquid outlets of the two conveying water pumps 28 are respectively connected with one ends of two water inlet pipes 30; the other ends of the two water inlet pipes 30 are respectively connected with one ends of the bent pipes of the two flotation inner groove assemblies, and the other ends of the bent pipes of the two flotation inner groove assemblies are respectively connected with one ends of the two water outlet pipes 31; the other ends of the two water outlet pipes 31 are respectively connected with the liquid inlets of the two waste treatment tanks 29; a valve 34 is arranged on the water outlet pipe 31, the valve 34 is normally closed, and the valve 34 is opened when the bent pipe needs to be cleaned; the silt holes 39 at the bottoms of the inner cavities of the inner groove bodies 12 of the two flotation inner groove assemblies are respectively connected with one ends of two sewage discharge pipes, and the other ends of the two sewage discharge pipes are respectively connected with the liquid inlets of two sewage discharge pumps 33; the liquid outlets of the two sewage pumps 33 are respectively connected with the liquid inlets of the two waste treatment boxes 29; the sewage pump 33 is used for sucking out the silt mixed in the oil tea fruit from the silt hole 39; one ends of the two corrugated pipes 32 are respectively communicated with the inner cavities of the inner tank bodies 12 of the two flotation inner tank assemblies, and the other ends of the two corrugated pipes 32 are connected through an electric valve.

As shown in fig. 4 and 5, the crankshaft connecting rod driving device includes a crankshaft bracket 40, a deep groove ball bearing 41, a crankshaft 42, a connecting rod 43, and a crankshaft driving motor 46; the base of the crankshaft driving motor 46 is fixed on the frame 1, and the output shaft of the crankshaft driving motor 46 is connected with one end of the crankshaft 42 through a second coupling 45; the crankshaft 42 is supported on a crankshaft bracket 40 through a deep groove ball bearing 41, and the crankshaft bracket 40 is fixed with the frame; two crankshaft sections of the crankshaft 42 are respectively hinged with one ends of two connecting rods 43, and the other ends of the two connecting rods 43 are respectively hinged with the bottom optical axes 44 of the inner tank bodies 12 of the two flotation inner tank assemblies.

As a preferred embodiment, the lifter 7, the vertical agitator driving motor 13, the delivery water pump 28, the sewage pump 33, the electric valve and the crankshaft driving motor 46 are all controlled by a controller, and the signal output end of the liquid level meter 17 is connected with the controller.

As a preferred embodiment, a shell collecting box 5 is arranged below the shell discharging channel 3, and a nut collecting box 6 is arranged below the nut discharging channel 4; the shell collecting box 5 is arranged on the table surface of the rack 1, and the kernel collecting box 6 is arranged on the partition plate of the rack 1; the partition board is positioned at the bottom of the table top.

As a preferred embodiment, a lifting driving motor 10 of the lifter is fixed at the bottom of a lifter bracket 9, and a conveying belt 8 of the lifter is driven by the lifting driving motor 10; the lifting drive motor 10 is controlled by a controller; the conveyer belt 8 of the hoister is fully distributed with baffles which are arranged at intervals; the two sides of the conveyer belt 8 of the hoister are provided with baffles to prevent the camellia oleifera fruits from sliding off in the conveying process; the output end of the hoister 7 is inclined downwards to reduce splashing caused by blanking.

As a preferred embodiment, the inlet pipe 30, the outlet pipe 31 and the sewage drain pipe are made of elastic materials (such as rubber) so as to be capable of keeping synchronous movement with the inner tank 12.

As a preferred embodiment, two ports are arranged at one end of the corrugated pipe 32 communicated with the inner cavity of the inner groove body 12.

As a preferred embodiment, a dovetail groove formed on the inner side wall of the outer groove body 2 and a lug which is integrally formed on the inner groove body 12 and matched with the dovetail groove form a sliding pair.

As a preferred embodiment, a distance is arranged between the end surface of the bottom end of the stirrer 16 and the arc-shaped filter screen 18, so that the nut structure on the filter screen 18 is prevented from being damaged; in the working process of the stirrer 16, silt doped in the oil tea fruits can sink into the bottom end of the inner tank body 12, and meanwhile, oil tea fruit nuts clamped on the filter screen 18 can slide to the nut discharging channel 4, so that the nuts can be conveniently collected.

As a preferred embodiment, the surface of the arcuate screen 18 is sprayed with a protective paint.

The flotation separation method of the oil tea fruit shell and kernel flotation separation device comprises the following specific steps:

step one, opening valves 34 at the liquid outlets of the water tank 24 and the brine storage tank 25 to enable water in the water tank 24 and brine in the brine storage tank 25 to flow into the liquid distribution tank 26 for mixing, and closing the valves 34 at the liquid outlets of the water tank 24 and the brine storage tank 25 when the density meter 27 detects that the density of the brine in the liquid distribution tank 26 reaches a set value.

Step two, starting a conveying water pump 28 corresponding to the high-level flotation inner tank assembly, and conveying the saline water in the liquid distribution tank 26 to a bent pipe of the flotation inner tank assembly through a water inlet pipe; each spray head 35 on the bent pipe sprays saline water to the inner groove body 12; when the liquid level meter 17 detects that the liquid level reaches a set height (lower than the shell discharge port by 1-2 cm), the elevator 7 above the flotation inner tank assembly conveys the crushed oil-tea camellia fruit shell and kernel mixture to the inner tank body 12 of the flotation inner tank assembly; the hoister 7 stops working after running for a set time (generally, only ten seconds); at the moment, the vertical stirrer driving motor 13 of the flotation inner tank assembly drives the stirrer 16 to start working, so as to drive the solution and the oil-tea camellia fruit shell and kernel mixture to rotate together to separate the oil-tea camellia fruit kernels from the oil-tea camellia fruit shells, and the oil-tea camellia fruit shells float above the inner tank body 12 and are discharged to the shell discharge channel 3 from the shell discharge hole 38 by the jet water flow of the spray head 35 for output; the oil tea fruit nuts fall on the arc-shaped filter screen 18 due to the fact that the density of the oil tea fruit nuts is larger than the density of the solution, and roll and gather at nut outlet openings; the silt falls down and sinks through the curved screen 18 into the bottom of the inner tank body 12 and collects in the silt holes 39 of the inner tank body 12. The vertical agitator drive motor 13 is stopped after a set time (typically ten seconds) while the transfer water pump 28 of the flotation tank assembly is stopped.

Step three, opening an electric valve on the corrugated pipe 32, enabling the solution to flow into the inner groove body 12 of the lower flotation inner groove assembly through the corrugated pipe 32 under the action of gravity, closing the electric valve when the liquid level meter 17 of the higher flotation inner groove assembly detects that the liquid level reaches a set minimum value (lower than a nut discharge port, and the solution is considered to be discharged completely), driving a crankshaft 42 by a crankshaft driving motor 46, and driving the two flotation inner groove assemblies to carry out high-low exchange by the crankshaft 42; after the exchange, the rubber door plate 22 of the lower flotation inner tank assembly is jacked up by the door plate lifting plate on the inner wall of the outer tank body 2, the spring 19 is compressed, and the oil-tea camellia fruit kernels roll down to the kernel discharge channel 4 from the kernel discharge port and are output; at the same time, the sewage pump 33 corresponding to the lower flotation tank assembly starts to operate, and the silt is pumped out and discharged into the waste treatment tank 29 corresponding to the lower flotation tank assembly through the sewage pipe and the sewage pump 33.

And step four, repeating the step two and the step three to realize continuous operation.

As a preferred embodiment, if the liquid level in the dispensing tank 26 is found to be too low, step one is performed manually at any time to replenish the solution in the dispensing tank 26.