Lotus root processing slurry dewatering device
Technical Field
The invention relates to the technical field of starch processing equipment, in particular to a lotus root processing slurry dewatering device.
Background
The lotus root starch is a traditional food, is a powder without gluten, and is used as a thickening agent in Chinese dishes and Japanese seasonings. An important step in the processing process of lotus root starch is dehydration treatment, namely, after lotus roots are added with water and crushed, pulp formed by removing fibers, impurities and the like is dehydrated, the pulp is usually placed in a container for standing for a period of time in the traditional dehydration treatment, and after the starch is separated from clear water, the clear water is pumped out to obtain the starch.
In order to solve the problems, the conventional dehydration equipment adopts a roller rotating at a high speed to perform dehydration treatment on lotus root slurry, and starch in the slurry is separated from clear water under the action of centrifugal force generated by the roller to obtain the starch. Although the device improves the dehydration rate of the lotus root pulp, the following problems still exist: because lotus root starch has high viscidity, constantly after gathering on the cylinder lateral wall as starch, can block up the filtration pore on the cylinder for moisture content can't be discharged, though there is equipment to set up the scraper in the cylinder, to the thick liquids dehydration in-process, scrapes the starch on the cylinder through the scraper, but the starch of scraping still in the cylinder, when needs take out, need shut down the manual work and take out, makes the dehydration not have the continuity, has reduced efficiency.
Disclosure of Invention
The invention provides a lotus root processing slurry dewatering device, which aims to solve the problems that in the prior art, a lotus root slurry needs to be stopped in a dewatering process, and starch is taken out manually.
In order to achieve the purpose, the basic scheme of the invention is as follows:
the lotus root processing slurry dehydration device comprises a rack, wherein a water collecting barrel with a closed top is fixedly arranged on the rack, a water outlet pipe is arranged at the bottom of the water collecting barrel, a dehydration barrel is rotationally connected in the water collecting barrel, a filter hole is formed in the side wall of the dehydration barrel, only liquid phase passes through the filter hole, a discharge pipe communicated with the dehydration barrel is arranged at the top of the water collecting barrel, and a discharge one-way valve is arranged in the discharge pipe;
the bottom of the dehydration barrel is fixedly connected with a transmission shaft driven by a motor, the transmission shaft extends out of the bottom of the water collecting barrel, a cavity communicated with the dehydration barrel and the outside is arranged inside the transmission shaft, a vertical rod connected to the rack through a spline is arranged in the cavity, the top of the vertical rod is provided with a piston connected with the dehydration barrel in a sliding and sealing manner, the side wall of the vertical rod is provided with a curved groove, and the side wall of the cavity is provided with a guide pin connected with the curved groove in a sliding manner;
the water collecting barrel is provided with a feeding barrel fixed on the frame above, the bottom of the feeding barrel is provided with a feeding one-way valve, the feeding one-way valve is connected with a feeding pipe communicated with the dewatering barrel, the top of the piston is provided with a push rod, the push rod penetrates through the feeding pipe and stretches into the feeding barrel, and the push rod positioned inside the storage barrel is provided with a plurality of blades.
The working principle of the basic scheme is as follows:
before the device works, the guide pin is positioned at the bottom of the curve groove, the piston is positioned at the top of the dewatering barrel, when the device works, the starting motor rotates at a high speed, the transmission shaft and the dewatering barrel rotate synchronously, and the dewatering barrel generates a larger centrifugal force to dewater the slurry.
When the transmission shaft rotates, the uide pin in the cavity rotates along with the transmission shaft, because the uide pin slides in the curve recess, make the montant remove downwards, thereby drive the piston and remove downwards, at the in-process that the piston removed downwards, the atmospheric pressure in the dewatering barrel of piston top reduces, make the feeding check valve open, thick liquids in the feed bucket enter into the dewatering barrel through the feed pipe, and rotate under the high-speed centrifugal force effect that the dewatering barrel produced, moisture content in the thick liquids passes through the filtration pore and discharges into in the water collecting bucket, and starch in the thick liquids remains in the dewatering barrel, and hug closely the lateral wall of dewatering barrel.
When the guide pin rotates to enable the vertical rod to move upwards, the piston is pushed to move upwards, gas in the dehydration barrel is extruded at first to enable air pressure in the dehydration barrel to be increased, the discharging one-way valve is opened, the feeding one-way valve is closed, the lotus root slurry stops entering the feeding pipe, in the process of moving upwards, the lotus root starch tightly attached to the dehydration barrel is scraped, and the piston continues to move upwards to push the starch to the discharging one-way valve to enter the discharging pipe to be discharged.
In the process of the piston continuously moving up and down in a reciprocating manner, the push rod above the piston moves in a reciprocating manner, so that the blades continuously move in a reciprocating manner along with the push rod, and slurry in the feeding barrel is stirred.
The technical effect of this basic scheme lies in:
1. in the basic scheme, the dehydrated starch is discharged in the dehydration process of the lotus root pulp, so that on one hand, the problem that powder is manually taken after shutdown in the prior art is solved, the production efficiency is improved, the lotus root pulp is dehydrated continuously, and the labor intensity of operators is reduced; on the other hand, the mode of discharging starch while dehydrating enables the starch not to be accumulated on the side wall of the dehydration barrel, and the problem that the starch blocks the filter holes and water in the slurry cannot be discharged is avoided.
2. In this scheme, the piston up-and-down motion scrapes the starch on the dehydration bucket lateral wall to promote starch exhaust in-process, the feeding check valve is closed, can avoid like this that thick liquids are not carrying out abundant dehydration and are discharged from ejection of compact check valve, and the feeding mode that is interrupted like this in addition is owing to not continuing to get into the thick liquids when discharge starch, consequently makes can not have new thick liquids to sneak into in the discharge starch, makes the water content of starch less.
3. Through the cooperation of uide pin and curve recess in this scheme, turn into the rotation of transmission shaft the upper and lower reciprocating motion of montant, need not to provide power to the montant in addition, make full use of the power supply, push rod and blade that are equipped with at the piston top in addition, at the in-process of piston motion, stir the thick liquids and handle, the starch deposit in the thick liquids of avoiding being in quiescent condition in the feed bucket is stopped up ejection of compact check valve.
Further, the bottom of the transmission shaft is fixedly connected with a ball bearing, and the ball bearing is installed in a bearing seat.
Has the advantages that: because the dehydration bucket needs higher centrifugal force when dehydrating the lotus root thick liquids, therefore the torque of motor output is great, sets up ball bearing and can improve the stability of transmission shaft.
Further, the top surface of the piston is in a circular truncated cone shape.
Has the advantages that: the slurry falling on the piston flows to the side wall of the dewatering barrel along the inclined surface of the circular truncated cone, so that dewatering treatment is performed.
Furthermore, a valve is arranged at the outlet of the water outlet pipe.
Has the advantages that: when the dewatering device works, the valve is closed, so that the whole dewatering device is in a relatively sealed state, and the influence of the external air pressure on the dewatering barrel can be reduced.
Further, a brush is arranged on the push rod.
Has the advantages that: like this reciprocating motion's in-process about the push rod, the brush can clean the pipe wall of feed pipe, avoids the adhesion of lotus root thick liquids on the discharging pipe.
Furthermore, an exhaust hole is formed in the piston, an air outlet one-way valve is arranged in the exhaust hole, the exhaust hole is communicated with a hose, and the outlet end of the air outlet pipe is located above the guide pin.
Has the advantages that: when the piston moves upwards, the pressure in the dehydration barrel above the piston is increased, the air outlet one-way valve is opened, the air in the dehydration barrel enters the hose from the air exhaust hole and then is blown on the guide pin, and because the transmission shaft generates friction and heat between the guide pin and the curved groove in the rotating process, the air exhausted from the hose can cool the guide pin, so that the fatigue strength of the guide pin is improved.
Drawings
FIG. 1 is a schematic structural view of a lotus root processing slurry dewatering device according to an embodiment of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a water collecting barrel 100, a water outlet pipe 101, a valve 102, a discharge pipe 103, a discharge one-way valve 104, a dewatering barrel 200, a filter hole 201, a transmission shaft 202, a ball bearing 203, a bearing seat 204, a cavity 205, a vertical rod 206, a piston 207, a curved groove 208, a guide pin 209, a feed barrel 300, a feed one-way valve 301, a feed pipe 302, a push rod 303, a rotating rod 304, a cross rod 305, a blade 306, a brush 307, an exhaust hole 308, an exhaust one-way valve 309 and a hose 310.
As shown in fig. 1, which is an embodiment of the present invention, a slurry dewatering device for processing lotus roots is disclosed, the device comprises a frame, a water collecting tank 100 with a closed top is fixedly arranged on the frame, a water outlet pipe 101 is arranged at the bottom of the water collecting tank 100, a valve 102 is arranged at the outlet of the water outlet pipe 101, a dewatering tank 200 is rotatably connected to the top of the inner side of the water collecting tank 100, wherein filtering holes 201 communicated with the water collecting tank 100 are uniformly distributed on the side wall of the dewatering tank 200, and the filtering holes 201 only allow water in lotus root slurry to pass through; the top of the water collecting barrel 100 is provided with a discharging pipe 103 communicated with the dehydration barrel 200, the discharging pipe 103 is connected with a material storage box, a discharging one-way valve 104 is arranged in the discharging pipe 103, when the air pressure in the dehydration barrel 200 is increased, the discharging one-way valve 104 is opened, and the lotus root starch in the dehydration barrel 200 is discharged.
A transmission shaft 202 driven by a motor is fixedly connected to the bottom of the dewatering barrel 200, wherein the transmission shaft 202 is vertically arranged and penetrates through the bottom of the water collecting barrel 100, the transmission shaft 202 is connected with a ball bearing 203, wherein the ball bearing 203 is arranged in a bearing seat 204, a cavity 205 communicating the dewatering barrel 200 with the outside is arranged in the transmission shaft 202, a vertical rod 206 connected to a rack through a spline is arranged in the cavity 205, a piston 207 connected with the dewatering barrel 200 in a sliding and sealing manner is arranged at the top of the vertical rod 206, the top surface of the piston 207 is in a circular platform shape, a curved groove 208 is axially arranged on the vertical rod 206, wherein the shape of the curved groove 208 is the same as that of a cylindrical cam, a guide pin 209 connected with the curved groove 208 in a sliding manner is arranged on the side wall of the cavity 205, when the device is not in operation, the guide pin 209 is positioned at the bottom of the, in addition, the vertical length of the curved groove 208 is smaller than the distance between the bottom surface of the piston 207 and the bottom of the water collecting tub 100.
A feeding barrel 300 fixed on the frame is arranged above the dewatering barrel 200, a feeding one-way valve 301 is arranged at the bottom of the feeding barrel 300, the feeding one-way valve 301 is connected with a feeding pipe 302 communicated with the dewatering barrel 200, when the air pressure in the dewatering barrel 200 is reduced, the feeding one-way valve 301 is opened, and the lotus root pulp in the feeding barrel 300 enters the feeding pipe 302.
Still vertically be provided with push rod 303 at piston 207 top surface, inside push rod 303 passed feed pipe 302 and stretched into feed bucket 300 to with feed bucket 300 bottom sliding seal connection, rotate at the top of push rod 303 and be connected with dwang 304, wherein be equipped with the external screw thread on the dwang 304, be equipped with on feed bucket 300 with dwang 304 threaded connection's horizontal pole 305, be equipped with a plurality of blades 306 on the transfer line in addition. The push rod 303 is further provided with a brush 307, and when the push rod 303 moves up and down, the brush 307 can clean the inner wall of the feeding pipe 302. An air outlet 308 is arranged in the piston 207, an air outlet one-way valve 309 is arranged in the air outlet 308, when the air pressure in the dehydration barrel 200 is increased, the air outlet one-way valve 309 is opened, the air in the dehydration barrel 200 enters the air outlet 308, in addition, the outlet end of the air outlet 308 is connected with a hose 310, and the outlet end of the hose 310 is close to the guide pin 209.
Initially, the guide pin 209 is located at the bottom of the curvilinear groove 208, the piston 207 is located at the top of the dehydration tub 200, and the valve 102 at the outlet of the water outlet pipe 101 is closed.
During operation, slurry of lotus roots to be dehydrated is fed into the feeding barrel 300, the motor is started to rotate at a high speed, the transmission shaft 202 is driven to rotate at a high speed, the guide pin 209 slides in the curved groove 208 while the transmission shaft 202 rotates, the vertical rod 206 moves up and down in a reciprocating manner, when the vertical rod 206 moves down, the piston 207 is pulled to move down, the pressure in the dehydration barrel 200 is reduced, the feeding one-way valve 301 is opened, the slurry of lotus roots in the feeding barrel 300 enters the dehydration barrel 200 through the feeding pipe 302, the dehydration barrel 200 rotates at a high speed synchronously while the transmission shaft 202 rotates, the dehydration barrel 200 generates a large centrifugal force, the slurry entering the dehydration barrel 200 falls on the piston 207, flows to the side wall of the dehydration barrel 200 along the inclined surface of the top surface of the piston 207, rotates at a high speed under the action of the centrifugal force, and water in the slurry enters the water collecting barrel 100 through the filter holes 201 in, the starch granules are left in the dehydration tub 200 and closely attached to the sidewall of the dehydration tub 200.
When the vertical rod 206 moves upwards, the piston 207 is pushed to move upwards, so that the air pressure in the dehydration barrel 200 is increased, the discharge one-way valve 104 is opened, the feeding one-way valve 301 is closed, the lotus root slurry stops entering the feeding pipe 302, in the process that the piston 207 moves upwards, the lotus root starch tightly attached to the dehydration barrel 200 is scraped, the piston 207 continues to move upwards to push the starch to the discharge one-way valve 104, enters the discharge pipe 103 and is discharged into the storage box.
When the vertical rod 206 pushes the piston 207 to reciprocate up and down, the push rod 303 at the top of the piston 207 and the rotating rod 304 synchronously reciprocate up and down, and in the process that the rotating rod 304 moves up and down, the push rod 303 is in threaded fit with the cross rod 305, so that the rotating rod 304 rotates in the moving process, the blades 306 rotate along with the blades, and the lotus root pulp to be dehydrated is stirred. After the dehydration is completed, the valve 102 at the water outlet pipe 101 is opened to discharge the water separated from the lotus root pulp in the water collecting bucket 100.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.