CN211882076U - Wide-powder feeding and returning system - Google Patents

Abstract

The utility model relates to a wide powder material loading feed back system, including sizing pipe and the stand for a stall subassembly, the stand for a stall subassembly is including storing up dressing trough, sizing roller and scraper blade subassembly, just it is equipped with stable baffle in the dressing trough to store up, store up the dressing trough with the part of sizing pipe intercommunication is provided with out the thick liquid pipe, the lower mouth of a river intercommunication that goes out the thick liquid pipe has the recovery tank, recovery tank bottom intercommunication has the feed back pipe, be connected with the pump on the feed back pipe, just the feed back pipe keep away from the one end of recovery tank with the setting of sizing pipe intercommunication. The utility model discloses the effect that has: be provided with out the thick liquid pipe and the recovery tank, the liquid level that keeps in the storage dressing trough during actual production is higher than the last port of play thick liquid pipe all the time slightly, and the thick liquid that the overflow came out flows back to the recovery tank in, and the rethread pump sending is to cyclic utilization in the starching pipe, can keep the liquid level that stores up in the dressing trough all the time to keep at a stable liquid level, improves the area of contact of sizing roller and rice milk, is favorable to improving the thickness homogeneous after the rice milk becomes the skin, improves product forming quality.

Description

Wide-powder feeding and returning system

Technical Field

The utility model belongs to the technical field of food processing's technique and specifically relates to a wide powder material loading feed back system is related to.

Background

The wide flour is a flavor snack widely accepted in the middle and southern regions, even a staple food in some regions, rice is mainly used as a raw material to be ground into slurry, and then the slurry is spread and cured and then cut into wide flour, so that the wide flour is crisp and tender in taste, rich in nutrition, suitable for the old and the young and deeply popular with the masses.

The applicant has applied for relevant patent to the production and processing equipment of broad powder, and it includes the sizing tube of being connected with grinding station, share skin subassembly and curing subassembly to describe in the patent application document of patent name "a broad powder production line", it includes storage dressing trough, sizing roller and scraper blade subassembly to share the skin subassembly, just it is equipped with stable baffle in the storage dressing trough to share the skin subassembly, sizing roller and sizing tube are located respectively the both sides of stable baffle are in store up directly over the dressing trough, scraper blade subassembly slope set up and higher one end overlap joint in one side on sizing roller upper portion, the upper portion orientation of sizing roller the scraper blade subassembly rotates.

Set up the aim at who stabilizes the baffle in the above-mentioned scheme and when the starching pipe sent rice milk into the mud storage tank, reduce the disturbance to the sizing roller, guarantee the thickness uniformity of the face skin that finally forms through the scraper blade subassembly. However, the applicant finds that in further practical production, the additional factor disturbing the thickness of the crust is that the rice milk pumped in the sizing pipe cannot be kept quite stable, and small fluctuation is frequently generated along with the running and aging of the pump, so that the change of the level of the rice milk in the slurry storage tank is also influenced, the fluctuation is generated on the amount of the rice milk contacted by the sizing roller, and the uniformity of the thickness of the crust is further influenced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a wide powder material loading feed back system, the stability of liquid level in the thick liquid groove is stored up in the maintenance that can step forward, is favorable to the thickness homogeneous that wide powder becomes the skin.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a wide powder material loading feed back system, includes sizing pipe and the subassembly of spreading out the skin, the subassembly of spreading out the skin is including storing up dressing trough, sizing roller and scraper blade subassembly, just it is equipped with stable baffle to store up the dressing trough, sizing roller and sizing pipe are located respectively the both sides of stable baffle are in store up the dressing trough directly over, it has curing subassembly to spread out skin subassembly bottom fixedly connected with, curing subassembly includes mounting bracket, conveying strap and steam heating case, store up the dressing trough with the part of sizing pipe intercommunication is provided with out the dressing pipe, the lower mouth intercommunication that goes out the dressing pipe has the recovery tank, recovery tank bottom intercommunication has the feed back pipe, be connected with the pump on the feed back pipe, just the feed back pipe keep away from the one end of recovery tank with the setting of sizing pipe intercommunication.

Through adopting above-mentioned technical scheme, be provided with out thick liquid pipe and recovery tank, during the actual production keep storing up the liquid level in the dressing trough and be higher than the last port of play thick liquid pipe a little all the time, and the thick liquid that the overflow came out flows back to the recovery tank in, cyclic utilization is carried out to the intraductal dressing that the rethread pump sent to the starching, can keep storing up the liquid level in the dressing trough all the time and keep at a stable liquid level, improve the area of contact of sizing roller and rice milk, be favorable to improving the thickness homogeneous after the rice milk becomes the skin, improve product shaping quality.

The present invention may be further configured in a preferred embodiment as: and a high liquid level meter and a low liquid level meter are arranged in the recovery tank and are electrically connected with the pump to control the opening and closing of the pump.

Through adopting above-mentioned technical scheme, can trigger high level gauge when the thick liquid of retrieving in the recovery tank reaches high liquid level to the start pump is taken the thick liquid out the pump sending to the container with the sizing pipe intercommunication and falls again to storing up the thick liquid groove through the sizing pipe in, when the liquid level pump sending in the recovery tank drops to low liquid level, then triggers low level gauge and stops the pump sending.

The present invention may be further configured in a preferred embodiment as: the bottom of the recovery tank is also connected with a communicating pipe, the other end of the communicating pipe is provided with an opening, and the connecting positions of the communicating pipe, the material return pipe and the recovery tank are respectively provided with a first opening and closing valve and a second opening and closing valve.

Through adopting above-mentioned technical scheme, set up communicating pipe and can be in the end production or carry out abluent time with abluent moisture discharge, open the second completion drainage that can be smooth of opening the on-off valve in the lump, close the on-off valve in the lump and open the second effect that can realize retrieving thick liquids of opening the on-off valve in the lump during normal production.

The present invention may be further configured in a preferred embodiment as: the skin subassembly of making up a stall and sizing tube quantity are equipped with two sets ofly at least, and the bottom of the play thick liquid pipe of all the other groups all corresponds and is provided with the jar of keeping in, the jar bottom of keeping in is connected with the discharge pipe, the discharge pipe with communicating pipe intercommunication sets up, just the bottom height of the jar of keeping in is higher than retrieve the jar with the tie point of feed back pipe.

Through adopting above-mentioned technical scheme, only need install on one of them a set of stand the skin subassembly and retrieve jar and pump, and all the other set of stand the skin subassembly on can realize retrieving the collection effect of thick liquids through setting up the jar of keeping in, because the jar of keeping in and retrieve the automatic flow that thick liquids were realized to the difference in height between the jar to the cost of every group equal installation pump has been saved.

The present invention may be further configured in a preferred embodiment as: and a third opening and closing valve is arranged at the joint of the discharge pipe and the temporary storage tank, and a fourth opening and closing valve is arranged at one end of the communicating pipe far away from the recovery tank.

Through adopting above-mentioned technical scheme, set up the independence that the opening and closing valve is favorable to improving the jar of keeping in, will open and close valve three when needs keep apart with the recovery jar when can, set up simultaneously and open and close valve four and also ensured the thick liquids in the jar of keeping in can smooth inflow recovery jar, open opening and close valve four when clearing up again can be with the timely discharge of abluent moisture.

The present invention may be further configured in a preferred embodiment as: the bottom of the slurry outlet pipe is rotatably connected with a horizontal connecting pipe, and the top parts of the recovery tank and the temporary storage tank are provided with cover plates for opening and closing.

Through adopting above-mentioned technical scheme, set up the apron and can keep retrieving the sanitary condition in jar and the jar of keeping in when not producing, simultaneously because the connection pipe rotates the connection, can adjust the position that the thick liquid spills over in the thick liquid storage tank through rotating.

The present invention may be further configured in a preferred embodiment as: the upper pipe orifice of the slurry outlet pipe is higher than the bottom of the stable partition plate and lower than the top of the stable partition plate.

The present invention may be further configured in a preferred embodiment as: the scraper component is obliquely arranged, the higher end of the scraper component is lapped on one side of the upper part of the sizing roller, and the upper part of the sizing roller rotates towards the scraper component.

The present invention may be further configured in a preferred embodiment as: the utility model discloses a slurry storage tank, including the storage thick liquid groove, the bottom of last thick liquid roller is in the bottom of last thick liquid groove, it is in to stabilize the baffle be on a parallel with the sizing roller sets up, and stabilize baffle both ends fixed connection in store up on the thick liquid groove a pair of lateral wall, the bottom of stabilizing the baffle with it is equipped with the clearance to leave between the bottom surface of storing up the thick liquid groove.

Through adopting above-mentioned technical scheme, set up and stabilize the baffle and divide into two parts with the storage vat, and the sizing roller is located the both sides of stabilizing the baffle respectively with the sizing pipe, consequently when storing up the thick liquid in the storage vat, along with the rotation of sizing roller, can be with the continuous conveying of rice thick liquid to the scraper blade subassembly and finally get into steam heating case and thus become the skin. However, the rotating speed of the sizing roller can be set to be constant, and the sizing pipe inevitably disturbs the rice milk in the milk storage tank when pumping the rice milk and further has adverse effect on the sizing roller, so the stabilizing partition plate can reduce the fluctuation effect of the sizing pipe on the rice milk immersed by the sizing roller and maintain the sizing amount of the sizing roller, and the liquid level can be always maintained to be slightly higher than the upper end of the milk outlet pipe for further keeping the liquid level in the milk storage tank stable, so that the redundant milk can flow out of the milk outlet pipe and be collected in the recovery tank.

The present invention may be further configured in a preferred embodiment as: the bottom of the skin spreading component is fixedly connected with a curing component, and the curing component comprises an installation frame, a conveying cloth belt and a steam heating box; the scraper blade subassembly is including starching scraper blade, leveling subassembly down, starching scraper blade slope set up and both sides fixed connection in on the mounting bracket, the leveling subassembly include fixed connection in installation pole on the mounting bracket, threaded connection has a plurality of even leveling bolt of interval on the installation pole, leveling bolt wears to establish installation pole and perpendicular to starching the scraper blade down, just leveling bolt's bottom be point portion set up and butt in starching on the scraper blade down.

Through adopting above-mentioned technical scheme, because the lower thick liquid scraper blade one end is connected the sizing roller temperature and is lower, the other end is close to steam heating box temperature higher, consequently produce temperature deformation easily and lead to warpage etc. when using for a long time, the rice thick liquid that goes out on the sizing roller this moment can lead to the thickness to differ when flowing to the lower thick liquid scraper blade, consequently can check and in time adjust with the horizontal ruler constantly after setting up a plurality of leveling bolts, guarantee the roughness of lower thick liquid scraper blade as far as possible, can promote the roughness and the homogeneity that the rice thick liquid becomes the skin.

To sum up, the utility model discloses a following at least one useful technological effect:

1. during actual production, the liquid level in the pulp storage tank is always kept slightly higher than the upper port of the pulp outlet pipe, and the overflowed pulp flows back to the recovery tank and is pumped into the pulp outlet pipe for cyclic utilization, so that the liquid level in the pulp storage tank can be kept at a stable liquid level all the time, the contact area between the sizing roller and the rice milk is increased, the thickness uniformity of the rice milk after being peeled is favorably improved, and the product forming quality is improved;

2. only need install on one of them group stand the skin subassembly and retrieve jar and pump, and all the other groups stand the skin subassembly on can realize retrieving the collection effect of thick liquids through setting up the jar of keeping in, the rethread keeps in jar and retrieves the poor automatic flow that realizes the thick liquids of height between the jar to the cost of every group equal installation pump has been saved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a schematic illustration of the single-unit breading assembly and curing assembly shown without the breading feed back system;

fig. 4 is an enlarged view of fig. 3 at a.

In the figure, 2, a temporary storage tank; 21. a discharge pipe; 3. a recovery tank; 31. a material return pipe; 32. a communicating pipe; 4. a pulp outlet pipe; 41. connecting the pipe; 5. a sizing pipe; 6. a skin spreading assembly; 7. a slurry storage tank; 71. stabilizing the separator; 8. a squeegee assembly; 81. a slurry feeding scraper plate; 82. mounting a rod; 83. leveling bolts; 9. a sizing roller; 10. a curing component; 101. a mounting frame; 102. conveying the cloth belt; 103. a steam heating box; 11. a pump; 12. opening and closing a first valve; 13. opening and closing a valve II; 14. opening and closing a valve III; 15. and opening and closing a valve IV.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a wide powder material loading feed back system, including sizing pipe 5, stand for the skin subassembly 6 and curing subassembly 10, be connected with the container that is used for storing rice milk on sizing pipe 5, can flow the rice milk thick liquids through sizing pipe 5 and stand for the skin operation in the skin subassembly 6.

Specifically, referring to fig. 1 and 2, the skin thickness is controlled to be 1.8-2.2mm by the skin-spreading assembly 6 when skin-spreading and curing are carried out, and the curing assembly 10 comprises a mounting frame 101, a conveying cloth belt 102 rotatably sleeved on the mounting frame 101, and a steam heating box 103 covering the conveying cloth belt 102. Wherein, stand out skin subassembly 6 including storing up thick liquid groove 7, sizing roller 9 and scraper blade subassembly 8, store up on thick liquid groove 7 is fixed in mounting bracket 101, in the rice milk that stores up in storing up thick liquid groove 7 is soaked to the bottom of sizing roller 9, scraper blade subassembly 8 slope set up and higher one end overlap joint in one side on sizing roller 9 upper portion, and the upper portion of sizing roller 9 rotates towards scraper blade subassembly 8.

Referring to fig. 3 and 4, a stabilizing partition plate 71 parallel to the length direction of the sizing roller 9 is fixedly arranged in the sizing storage tank 7, two ends of the stabilizing partition plate 71 are fixedly connected to a pair of side walls of the sizing storage tank 7, a gap exists between the lower part of the stabilizing partition plate 71 and the sizing storage tank 7, the bottom of the sizing roller 9 is lower than the bottom of the stabilizing partition plate 71, the sizing storage tank 7 is divided into two cavities by the stabilizing partition plate 71, the sizing roller 9 is positioned in the cavity of the sizing storage tank 7 close to the scraper component 8, and the sizing pipe 5 is connected with the other cavity of the sizing storage tank 7.

Referring to fig. 1 and 2, a portion of the stock tank 7 corresponding to the sizing pipe 5 is further provided with a pulp outlet pipe 4, an upper port of the pulp outlet pipe 4 is higher than the bottom of the stabilizing partition plate 71 and lower than the top of the stabilizing partition plate 71, and the bottom of the pulp outlet pipe 4 penetrates through the bottom of the stock tank 7 and is communicated with the recovery tank 3. The rice milk liquid level in the milk storage tank 7 can be slightly higher than the pipe orifice of the milk outlet pipe 4 by controlling the rice milk flow of the milk outlet pipe 5, the arrangement of the milk outlet pipe 4 can lead away the excessive rice milk by direct overflow, and the rice milk is stored in the recovery tank 3 and then recycled, so that the influence of stirring the liquid level of the rice milk on the milk sizing roller 9 is reduced.

Referring to fig. 1 and 2, the bottom of the recovery tank 3 is communicated with a material return pipe 31, the material return pipe 31 is connected with a pump 11, one end of the material return pipe 31, which is far away from the recovery tank 3, is communicated with the sizing pipe 5, a high liquid level meter and a low liquid level meter (not shown in the figure) are arranged in the recovery tank 3, and are electrically connected with the pump 11 to control the opening and closing of the pump 11, the bottom of the recovery tank 3 is also connected with a communicating pipe 32, the other end of the communicating pipe 32 is arranged in an opening mode, and the connecting positions of the communicating pipe 32 and the material return pipe 31 and the recovery tank 3 are respectively provided with a first opening and closing valve 12 and a second opening and.

When the slurry recovered in the recovery tank 3 reaches a high liquid level, the high liquid level meter is triggered, so that the pump 11 is started to pump the slurry out of the pump 11 to a container communicated with the sizing pipe 5 and fall down to the slurry storage tank 7 through the sizing pipe 5 again, and when the liquid level pump 11 in the recovery tank 3 is sent to a low liquid level, the low liquid level meter is triggered and the pump 11 is stopped. The communicating pipe 32 is arranged to discharge the cleaned water when finishing production or cleaning, the first opening and closing valve 12 is opened and the second opening and closing valve 13 is closed to smoothly finish water discharge, and the first opening and closing valve 12 is closed and the second opening and closing valve 13 is opened during normal production to achieve the effect of slurry recovery.

Further, can install many production lines in the actual production, refer to fig. 1 and 2, the skin subassembly 6 of spreading out promptly can be provided with three groups or three production lines or more in the reality, and the skin subassembly 6 of spreading out of two other production lines except aforementioned production line then is provided with the jar 2 of keeping in, and the bottom of play thick liquid pipe 4 corresponds the setting with the jar 2 of keeping in, and jar 2 bottom of keeping in is connected with discharge pipe 21, discharge pipe 21 with communicating pipe 32 intercommunication sets up, just the bottom of jar 2 of keeping in highly be higher than retrieve jar 3 with the tie point of feed back pipe 31, discharge pipe 21 with the jar 2 junction of keeping in all is equipped with opening and close valve three 14, just the one end that retrieves jar 3 was kept away from to communicating pipe 32 is equipped with opening and close valve four 15. The bottom of the slurry outlet pipe 4 is rotatably connected with a horizontal connecting pipe 41, and the top of the recovery tank 3 and the top of the temporary storage tank 2 are both provided with cover plates (not shown in the figure) for opening and closing.

Only install on a set of stand for the skin subassembly 6 and retrieve jar 3 and pump 11, and the collection effect that can realize retrieving thick liquids through setting up jar 2 of keeping in on the stand for the skin subassembly 6 of all the other groups, realize the automatic flow of thick liquids through jar 2 and the difference in height between the recovery jar 3 of keeping in to the cost of every group equal installation pump 11 has been saved. Meanwhile, the three 14 and four opening and closing valves can meet the requirements of normal recycling and cleaning of the temporary storage tank 2 and the recovery tank 3.

Referring to fig. 3 and 4, the scraper component 8 comprises a lower slurry scraper 81 and a leveling component, wherein the lower slurry scraper 81 is obliquely arranged, and two sides of the lower slurry scraper are fixedly connected to a mounting frame 101. The leveling component comprises an installation rod 82 fixedly connected to the installation frame 101, a plurality of leveling bolts 83 with uniform intervals are connected to the installation rod 82 in a threaded mode, the leveling bolts 83 penetrate through the installation rod 82 and are perpendicular to the slurry discharging scraper 81, and the bottom ends of the leveling bolts 83 are arranged at the tip portions and abut against the slurry discharging scraper 81. Because the flatness of the whole slurry discharging scraper 81 can directly influence the thickness uniformity of the rice milk skin, the slurry discharging scraper 81 is positioned in the middle position of the rice milk feeding and gelatinization heating, and the local deformation is easily caused in the cold and hot alternate environment, the leveling bolt 83 is arranged, the warping of the end part of the slurry discharging scraper 81 caused by temperature deformation is reduced, and the thickness uniformity of the whole rice milk discharging is favorably improved.

The mounting rod 82 is arranged in parallel with the sizing roller 9 and is positioned above one end of the lower sizing scraper 81 close to the sizing roller 9, a conveying cloth belt 102 for receiving rice milk is abutted below the lower end of the lower sizing scraper 81, and the conveying cloth belt 102 conveys the rice milk for curing.

Referring to fig. 1 and 2, a steam heating box 103 with a length of 20-25m is used for cooking the rice milk, a conveying cloth belt 102 penetrates through the steam heating box 103, the upper end bearing surface of the conveying cloth belt 102 receives the rice milk and then enters and passes through the steam heating box 103, and shielding suspension cloth (not shown in the figure) is arranged at the inlet and outlet of the two ends of the steam heating box 103. The front end air pipe (not shown in the figure) is communicated with the steam heating box 103 at the position 2-3m away from the front end, and the rear end air pipe (not shown in the figure) is communicated with the steam heating box 103 at the position 3-5m away from the rear end.

The junction of the front end air pipe and the rear end air pipe is controlled, the junction of the front end air pipe and the rear end air pipe can be used as the center to radiate the surrounding part of the box body, the surrounding humidity and temperature are easily controlled, and therefore the steam heating box 103 can be divided into three sections, namely, a solidification forming section at the front end, a skin pasting section at the rear end and a transition section in the middle, and a plurality of processes of solidification forming, heat preservation forming and skin pasting can be sequentially carried out on rice milk on the conveying cloth belt 102. After the rice paste is subjected to the skin spreading and curing treatment, the rice paste is already formed into rice skins.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (10)

1. The utility model provides a wide powder material loading feed back system, includes sizing tube (5) and stand for a short time leather subassembly (6), stand for a short time leather subassembly (6) including storing up dressing trough (7), sizing roller (9) and scraper blade subassembly (8), just be equipped with in storing up dressing trough (7) and stabilize baffle (71), sizing roller (9) and sizing tube (5) are located respectively stabilize the both sides of baffle (71) and be in store up directly over dressing trough (7), stand for a short time leather subassembly (6) bottom fixedly connected with curing subassembly (10), curing subassembly (10) include mounting bracket (101), conveying strap (102) and steam heating case (103), its characterized in that: the slurry storage tank (7) is communicated with the slurry feeding pipe (5) to form a slurry discharging pipe (4), a lower pipe opening of the slurry discharging pipe (4) is communicated with a recovery tank (3), the bottom of the recovery tank (3) is communicated with a material return pipe (31), a pump (11) is connected to the material return pipe (31), and one end, away from the recovery tank (3), of the material return pipe (31) is communicated with the slurry feeding pipe (5).

2. A broad powder feeding and returning system according to claim 1, wherein: a high liquid level meter and a low liquid level meter are arranged in the recovery tank (3) and are electrically connected with the pump (11) to control the opening and closing of the pump (11).

3. A broad powder feeding and returning system according to claim 2, wherein: the bottom of the recovery tank (3) is also connected with a communicating pipe (32), the other end of the communicating pipe (32) is provided with an opening, and the joint of the communicating pipe (32), the material return pipe (31) and the recovery tank (3) is respectively provided with a first opening and closing valve (12) and a second opening and closing valve (13).

4. A broad powder feeding and returning system according to claim 3, wherein: stand out skin subassembly (6) and sizing tube (5) quantity and be equipped with two sets ofly at least, the bottom of the play thick liquid pipe (4) of all the other groups all corresponds and is provided with temporary storage tank (2), temporary storage tank (2) bottom is connected with discharge pipe (21), discharge pipe (21) with communicating pipe (32) intercommunication sets up, just the bottom of temporary storage tank (2) highly is higher than retrieve tank (3) with the tie point of feed back pipe (31).

5. A broad powder feeding and returning system according to claim 4, wherein: and a third opening and closing valve (14) is arranged at the joint of the discharge pipe (21) and the temporary storage tank (2), and a fourth opening and closing valve (15) is arranged at one end, far away from the recovery tank (3), of the communication pipe (32).

6. A broad powder feeding and returning system according to any one of claims 1 to 5, wherein: the bottom of the slurry outlet pipe (4) is rotatably connected with a horizontal connecting pipe (41), and the tops of the recovery tank (3) and the temporary storage tank (2) are provided with cover plates for opening and closing.

7. A broad powder feeding and returning system according to claim 6, wherein: the upper pipe orifice of the slurry outlet pipe (4) is higher than the bottom of the stable clapboard (71) and lower than the top of the stable clapboard (71).

8. A broad powder feeding and returning system according to claim 7, wherein: the scraper component (8) is obliquely arranged, the higher end of the scraper component is lapped on one side of the upper part of the sizing roller (9), and the upper part of the sizing roller (9) rotates towards the scraper component (8).

9. The wide powder feeding and returning system according to claim 8, wherein: stabilize baffle (71) and be on a parallel with sizing roller (9) sets up, and stabilize baffle (71) both ends fixed connection in store up on a pair of lateral wall of dressing trough (7), the bottom of stabilizing baffle (71) with it is equipped with the clearance to leave between the bottom surface of dressing trough (7), the bottom submergence of sizing roller (9) in storing up in dressing trough (7), just the bottom of sizing roller (9) is less than the bottom of stabilizing baffle (71).

10. The wide powder feeding and returning system according to claim 9, wherein: scraper blade subassembly (8) are including starching scraper blade (81), leveling subassembly down, starching scraper blade (81) slope set up and both sides fixed connection in on mounting bracket (101), the leveling subassembly include fixed connection in installation pole (82) on mounting bracket (101), threaded connection has a plurality of even leveling bolt (83) of interval on installation pole (82), leveling bolt (83) are worn to establish installation pole (82) and perpendicular to starching scraper blade (81) down, just the bottom of leveling bolt (83) is sharp portion setting and butt in starching scraper blade (81) is down.

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