阅读说明：本技术 料盘组件和具有其的供料系统 (Charging tray assembly and feeding system with same ) 是由 颜海鹏 曾彪 王冠超 李茂旭 于 2019-09-30 设计创作，主要内容包括：本发明公开了一种料盘组件和具有其的供料系统,所述料盘组件包括：料盘,所述料盘的顶部敞开,所述料盘具有料盘出浆料口；喷浆料部件,所述喷浆料部件具有进浆料口,所述喷桨料部件包括至少一个喷浆料管,所述喷浆料管设在所述料盘的底壁上方,所述喷浆料管的周壁上形成有多个喷孔,至少一个所述喷孔与所述喷浆料管的内部连通,所述至少一个所述喷孔构造成从所述喷孔喷出的浆料进入所述料盘内。根据本发明的料盘组件,通过设置喷浆料管,并使喷浆料管的周壁上形成有多个喷孔且使至少一个喷孔构造成从喷孔喷出的浆料进入料盘内,使料盘内的浆料能够产生紊流且始终处于均匀状态,不易发生沉降,使整个料盘组件可以适用于不稳定浆料。(The invention discloses a tray assembly and a feeding system with the same, wherein the tray assembly comprises: the top of the material tray is open, and the material tray is provided with a material tray slurry outlet; the slurry spraying part is provided with a slurry feeding port and comprises at least one slurry spraying pipe, the slurry spraying pipe is arranged above the bottom wall of the material tray, a plurality of spray holes are formed in the peripheral wall of the slurry spraying pipe, at least one spray hole is communicated with the inside of the slurry spraying pipe, and the at least one spray hole is formed in a manner that slurry sprayed out of the spray holes enters the material tray. According to the charging tray assembly, the slurry spraying pipe is arranged, the plurality of spray holes are formed in the peripheral wall of the slurry spraying pipe, and at least one spray hole is formed to enable slurry sprayed from the spray holes to enter the charging tray, so that the slurry in the charging tray can generate turbulence and is always in a uniform state, sedimentation is not easy to occur, and the whole charging tray assembly can be suitable for unstable slurry.)

1. A tray assembly, comprising:

the top of the material tray is open, and the material tray is provided with a material tray slurry outlet;

the slurry spraying part is provided with a slurry feeding port and comprises at least one slurry spraying pipe, the slurry spraying pipe is arranged above the bottom wall of the material tray, a plurality of spray holes are formed in the peripheral wall of the slurry spraying pipe, at least one spray hole is communicated with the inside of the slurry spraying pipe, and the at least one spray hole is formed in a manner that slurry sprayed out of the spray holes enters the material tray.

2. The tray assembly of claim 1, wherein a plurality of the orifices are formed below a central horizontal cross-section of the slurry injection tube.

3. The tray assembly according to claim 1, wherein the peripheral wall of the slurry spraying pipe, which is located at the same cross section of the slurry spraying pipe, is provided with at least two injection holes, the at least two injection holes are arranged at intervals along the circumferential direction of the slurry spraying pipe, and an included angle between every two adjacent injection holes in the at least two injection holes is α, where α satisfies: alpha is more than 10 degrees and less than or equal to 170 degrees.

4. The tray assembly of claim 3, wherein the at least two orifices are symmetrically distributed along a central longitudinal cross-section of the slurry barrel.

5. The tray assembly according to claim 3, wherein the at least two injection holes form a group of holes, the group of holes is multiple, and the multiple groups of holes are arranged at intervals along the length direction of the slurry spraying pipe.

6. The tray assembly of claim 1, wherein the top surface of the slurry conduit is lower than the top surface of the tray.

7. The tray assembly of claim 1, wherein the aperture of at least one of the orifices is d, wherein d satisfies: d is more than or equal to 0.5mm and less than or equal to 3 mm.

8. The tray assembly according to claim 1, wherein the slurry spraying part comprises a slurry inlet pipe and a plurality of slurry spraying pipes, the slurry inlet is formed at one end of the slurry inlet pipe, the plurality of slurry spraying pipes are arranged at intervals along the length direction of the slurry inlet pipe, and the interiors of the plurality of slurry spraying pipes are communicated with the interior of the slurry inlet pipe.

9. The tray assembly of any of claims 1-8, wherein the tray comprises:

the first material tray is provided with a material tray slurry outlet;

the second charging tray, the top of second charging tray is opened, the second charging tray is established in the first charging tray, wherein the thick liquids part is established in the second charging tray, through a plurality of the orifice of thick liquids part enters into in the second charging tray thick liquids are in when the second charging tray is full, be suitable for through the top edge of second charging tray overflows in the first charging tray.

10. The tray assembly of claim 9, wherein the entire top edge of the second tray is in the same horizontal plane.

11. The tray assembly of claim 9, wherein the first tray and the second tray are movable up and down as a unit.

12. A feed system, comprising:

the batching tank comprises a slurry return opening and a slurry outlet;

a tray assembly according to any one of claims 1 to 11;

the slurry spraying pipe of the material tray assembly is communicated with the slurry outlet, the slurry discharging port of the material tray assembly is connected with the slurry return port, and the material tray assembly and the batching tank form a slurry circulation loop through the slurry spraying pipe, the slurry discharging port of the material tray assembly, the slurry return port and the slurry outlet.

13. The feeding system of claim 12, wherein a filter screen is disposed in a flow path between the slurry outlet of the tray and the slurry return.

14. The feeding system according to claim 12 or 13, wherein a first pump is arranged in the flow path between the slurry outlet and the slurry spraying pipe, and a second pump is arranged in the flow path between the slurry outlet of the material tray and the slurry return opening.

15. The feed system of claim 14, wherein the first and second pumps are each peristaltic pumps.

Technical Field

The invention relates to the technical field of coating, in particular to a tray assembly and a feeding system with the same.

Background

In the related art, the feeding system of the coater usually senses the liquid level in the slurry tank of the coater head by a liquid level sensor, so as to control the feeding speed of the slurry, thereby keeping the slurry at a constant position. However, the above feeding system has a complicated structure, requires a liquid level sensor to cooperate with an electromagnetic valve to control the feeding speed of the slurry, has high cost, and is not suitable for coating and feeding of unstable slurry, because the slurry is easy to settle in the coating process.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to provide a tray assembly suitable for the application and feeding of unstable slurry, which can generate turbulence in the slurry and avoid the generation of sedimentation.

Another object of the present invention is to provide a feeding system having the tray assembly.

According to the embodiment of the first aspect of the invention, the tray assembly comprises: the top of the material tray is open, and the material tray is provided with a material tray slurry outlet; the slurry spraying part is provided with a slurry feeding port and comprises at least one slurry spraying pipe, the slurry spraying pipe is arranged above the bottom wall of the material tray, a plurality of spray holes are formed in the peripheral wall of the slurry spraying pipe, at least one spray hole is communicated with the inside of the slurry spraying pipe, and the at least one spray hole is formed in a manner that slurry sprayed out of the spray holes enters the material tray.

According to the charging tray assembly provided by the embodiment of the invention, the slurry spraying pipe is arranged above the bottom wall of the charging tray, the plurality of spray holes are formed in the peripheral wall of the slurry spraying pipe, and at least one spray hole is formed to enable slurry sprayed from the spray holes to enter the charging tray, so that the slurry in the charging tray can generate turbulence and is always in a uniform state, sedimentation is not easy to occur, and the whole charging tray assembly can be suitable for unstable slurry. Moreover, the whole material tray assembly is simple in structure and low in cost.

According to some embodiments of the present invention, the plurality of injection holes are formed below a central horizontal section of the slurry injecting pipe.

According to some embodiments of the present invention, the peripheral wall of the same cross section of the slurry spraying pipe has at least two spraying holes, the at least two spraying holes are arranged at intervals along the circumferential direction of the slurry spraying pipe, and an included angle between every two adjacent spraying holes of the at least two spraying holes is α, where α satisfies: alpha is more than 10 degrees and less than or equal to 170 degrees.

According to some embodiments of the invention, the at least two spray holes are symmetrically distributed along a central longitudinal section of the slurry spraying pipe.

According to some embodiments of the invention, the at least two injection holes form a group of a plurality of hole groups, and the plurality of hole groups are arranged at intervals along the length direction of the slurry injection pipe.

According to some embodiments of the invention, the top surface of the slurry spraying pipe is lower than the top surface of the tray.

According to some embodiments of the invention, the aperture of at least one of the orifices is d, wherein d satisfies: d is more than or equal to 0.5mm and less than or equal to 3 mm.

According to some embodiments of the present invention, the slurry spraying part includes a slurry inlet pipe and a plurality of slurry spraying pipes, the slurry inlet port is formed at one end of the slurry inlet pipe, the plurality of slurry spraying pipes are arranged at intervals along a length direction of the slurry inlet pipe, and the interiors of the plurality of slurry spraying pipes are communicated with the interior of the slurry inlet pipe.

According to some embodiments of the invention, the tray comprises: the first material tray is provided with a material tray slurry outlet; the second charging tray, the top of second charging tray is opened, the second charging tray is established in the first charging tray, wherein the thick liquids part is established in the second charging tray, through a plurality of the orifice of thick liquids part enters into in the second charging tray thick liquids are in when the second charging tray is full, be suitable for through the top edge of second charging tray overflows in the first charging tray.

According to some embodiments of the invention, the entire top edge of the second tray is located in the same horizontal plane.

According to some embodiments of the invention, the first tray and the second tray can integrally move up and down.

A feed system according to an embodiment of the second aspect of the invention comprises: the batching tank comprises a slurry return opening and a slurry outlet; a tray assembly according to the above-described first aspect of the invention; the slurry spraying pipe of the material tray assembly is communicated with the slurry outlet, the slurry discharging port of the material tray assembly is connected with the slurry return port, and the material tray assembly and the batching tank form a slurry circulation loop through the slurry spraying pipe, the slurry discharging port of the material tray assembly, the slurry return port and the slurry outlet.

According to some embodiments of the invention, a filter screen is arranged on a flow path between the slurry outlet of the tray and the slurry return.

According to some embodiments of the invention, a first pump is arranged on a flow path between the slurry outlet and the slurry spraying pipe, and a second pump is arranged on a flow path between the slurry outlet of the material tray and the slurry return opening.

According to some embodiments of the invention, the first pump body and the second pump body are both peristaltic pumps.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a front view of a tray assembly according to an embodiment of the invention;

FIG. 2 is a top view of the tray assembly shown in FIG. 1;

FIG. 3 is a cross-sectional view of a slurry spout of a tray assembly according to an embodiment of the present invention;

FIG. 4 is a schematic view of a feed system according to an embodiment of the invention.

Reference numerals:

100: a tray assembly;

1: a material tray; 11: a slurry outlet of the material tray; 12: a first tray;

13: a second tray; 2: a guniting material component; 21: a slurry spraying pipe; 211: spraying a hole;

212: the central horizontal section of the slurry spraying pipe; 213: the central longitudinal section of the slurry spraying pipe;

22: a slurry inlet pipe; 221: a slurry inlet;

200: a feed system;

201: a dosing tank; 2011: returning the slurry; 2012: a slurry outlet;

202: filtering the screen; 203: a first pump body;

204: a second pump body; 205: and (4) rolling.

Detailed Description

Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.

A tray assembly 100 according to an embodiment of the first aspect of the invention is described below with reference to fig. 1-4. The tray assembly 100 can be applied to a feed system 200 such as the feed system 200 of a coater (not shown).

As shown in fig. 1 to 4, a tray assembly 100 according to an embodiment of the first aspect of the present invention includes a tray 1 and a slurry ejection part 2.

Specifically, the top of the tray 1 is open, and the tray 1 has a tray discharge port 11. The slurry spraying part 2 is provided with a slurry feeding port 221, the slurry spraying part 2 comprises at least one slurry spraying pipe 21, the slurry spraying pipe 21 is arranged above the bottom wall of the tray 1, a plurality of spraying holes 211 are formed on the peripheral wall of the slurry spraying pipe 21, at least one spraying hole 211 is communicated with the inside of the slurry spraying pipe 21, and the at least one spraying hole 211 is formed in a manner that slurry sprayed out of the spraying holes 211 enters the tray 1. In the description of the present invention, "a plurality" means two or more.

For example, in the example of fig. 1-3, three slurry injecting pipes 21 are shown, each slurry injecting pipe 21 is formed with a plurality of injecting holes 211, the three slurry injecting pipes 21 are arranged above the bottom wall of the tray 1, the tray slurry outlet 11 is arranged at the bottom of the tray 1, and the tray 1 is used for containing slurry. When slurry enters the slurry spraying pipe 21, the slurry is sprayed out from at least one spray hole 211 on the slurry spraying pipe 21 and sprayed into the tray 1, and because the slurry is contained in the tray 1, new slurry sprayed out from the spray hole 211 generates certain impact force on original slurry in the tray 1, so that the slurry in the tray 1 generates turbulence and promotes uniform dispersion of the slurry, and redundant slurry in the tray 1 can flow out from the slurry outlet 11 of the tray. Therefore, through the arrangement, the slurry can be always in a uniform state in the material tray 1 and is not easy to settle, so that the material tray assembly 100 is suitable for unstable slurry, and the whole material tray assembly 100 is simple in structure and low in cost.

Three slurry pipes 21 are shown in fig. 2 for illustrative purposes, but it is obvious to those skilled in the art after reading the technical solution of the present application that the solution can be applied to other technical solutions of the slurry pipes 21, and the invention also falls into the protection scope of the present invention.

According to the tray assembly 100 of the embodiment of the invention, the slurry spraying pipe 21 is arranged above the bottom wall of the tray 1, the plurality of spraying holes 211 are formed on the peripheral wall of the slurry spraying pipe 21, and at least one spraying hole 211 is formed to enable the slurry sprayed from the spraying hole 211 to enter the tray 1, so that the slurry in the tray 1 can generate turbulence and is always in a uniform state, sedimentation is not easy to occur, and the whole tray assembly 100 can be suitable for unstable slurry. Moreover, the whole tray assembly 100 is simple in structure and low in cost.

In some embodiments of the present invention, referring to fig. 3, a plurality of spray holes 211 are formed below a central horizontal section 212 of the slurry pipe 21. So set up, can effectively guarantee from the thick liquids of orifice 211 blowout can spout to the charging tray 1 in, and make the thick liquids of deposit in the charging tray 1 can produce the turbulent flow and evenly spread through the thick liquids that orifice 211 jetted, can effectively avoid thick liquids to produce and subside.

In some embodiments of the present invention, referring to fig. 2 and 3, the slurry spraying pipe 21 has at least two spraying holes 211 in a cross section, the at least two spraying holes 211 are spaced along a circumferential direction of the slurry spraying pipe 21, and an included angle between every two adjacent spraying holes 211 of the at least two spraying holes 211 is α, where α satisfies: alpha is more than 10 degrees and less than or equal to 170 degrees. Therefore, through the arrangement, the effect of spraying the slurry from the spray holes 211 can be ensured, the slurry sprayed from the spray holes 211 can be sprayed to multiple positions on the bottom wall of the material tray 1, the slurry in the material tray 1 generates turbulence, the slurry is prevented from settling in the material tray 1, and the coating effect of the slurry in the material tray 1 can be ensured. It should be noted that, when the nozzle holes 211 sink into the slurry, the included angle α between two nozzle holes 211 can satisfy 0 ° < α ≦ 180 °.

Alternatively, referring to fig. 3, at least two spray holes 211 are symmetrically distributed along a central longitudinal section 213 of the slurry pipe 21. From this, the thick liquids that spout to charging tray 1 diapire from the orifice 211 of the same cross section of whitewashing liquid pipe 21 are symmetrical, and the impact force that makes the thick liquids in the charging tray 1 receive is more even to can guarantee that the thick liquids in the charging tray 1 is in dynamic stable state all the time, avoid thick liquids to subside.

Further, referring to fig. 2, at least two injection holes 211 constitute a group of a plurality of hole groups, and the plurality of hole groups are provided at intervals in the longitudinal direction of the slurry pipe 21. For example, in the example of fig. 2, the slurry ejection member 2 includes three slurry ejection tubes 21, two injection holes 211 are provided in a cross section of each slurry ejection tube 21, the two injection holes 211 constitute a group of hole groups, each slurry ejection tube 21 has seven hole groups in total, and the seven hole groups are arranged at even intervals in the axial direction of the slurry ejection tube 21. Therefore, the slurry can be sprayed out from the spray holes 211 in the plurality of hole groups, so that the slurry in the material tray 1 can be impacted, and the uniformity of the slurry in the material tray 1 is further ensured.

Alternatively, as shown in FIG. 1, the top surface of the slurry pipe 21 is lower than the top surface of the tray 1. Through the arrangement, the distance between the spray hole 211 and the bottom wall of the charging tray 1 is short, the impact force of the slurry sprayed from the spray hole 211 is large, and the slurry in the charging tray 1 can be well impacted by the slurry sprayed from the spray hole 211, so that turbulence is generated, and the slurry in the charging tray 1 can be effectively prevented from settling. Moreover, the slurry spraying pipe 21 arranged in this way can ensure that the slurry can completely enter the tray 1, and the splashing can be prevented.

Optionally, the aperture of the at least one nozzle hole 211 is d, where d satisfies: d is more than or equal to 0.5mm and less than or equal to 3 mm. Therefore, when the aperture d of the injection hole 211 is within the above range, the slurry injected from the injection hole 211 can generate turbulence in the slurry in the tray 1, and the slurry in the tray 1 can be kept dynamically stable all the time.

Alternatively, the number distribution of the spray holes 211 on the gunite tube 21 may be 20 to 200 (inclusive) per meter.

In some embodiments of the present invention, referring to fig. 2, the slurry spraying part 2 includes a slurry feeding pipe 22 and a plurality of slurry spraying pipes 21, one end (e.g., the upper end in fig. 2) of the slurry feeding pipe 22 has a slurry feeding port 221, the plurality of slurry spraying pipes 21 are arranged at intervals along the length direction of the slurry feeding pipe 22, and the interiors of the plurality of slurry spraying pipes 21 communicate with the interior of the slurry feeding pipe 22. For example, in the example of fig. 2, the slurry spraying part 2 includes a slurry inlet pipe 22 and three slurry spraying pipes 21, the three slurry spraying pipes 21 are located at the left side of the slurry inlet pipe 22, the three slurry spraying pipes 21 are arranged at intervals along the axial direction of the slurry inlet pipe 22, the right end of each slurry spraying pipe 21 is communicated with the slurry inlet pipe 22, slurry enters the slurry inlet pipe 22 from a slurry inlet port 221, then flows into the three slurry spraying pipes 21 from the slurry inlet pipe 22, and is finally sprayed into the tray 1 from the spray holes 211 of the slurry spraying pipes 21, so that the slurry in the tray 1 is turbulent, and the uniformity and stability of the slurry are ensured. From this, through the inside intercommunication that makes a plurality of whitewashing material pipes 21 and advance thick liquids pipe 22, make the thick liquids that flow in advance in thick liquids pipe 22 can flow in a plurality of whitewashing material pipes 21 respectively, whole whitewashing material part 2's simple structure, it is convenient to make, and can improve whitewashing material pipe 21 efficiency of spouting thick liquids. Of course, the invention is not limited thereto, and the plurality of slurry spraying pipes 21 can also be distributed symmetrically (not shown) about the central axis of the slurry inlet pipe 22, and at this time, the slurry in the tray 1 can also be effectively prevented from being settled.

In some embodiments of the invention, referring to fig. 1-4, the tray 1 includes a first tray 12 and a second tray 13. Specifically, first charging tray 12 is equipped with charging tray play thick liquid material mouth 11, and the top of second charging tray 13 is opened, and second charging tray 13 is established in first charging tray 12, and wherein whitewashing liquid part 2 is established in second charging tray 13, and thick liquids that enter into in the second charging tray 13 through a plurality of orifices 211 of whitewashing liquid part 2 are suitable for when second charging tray 13 is full of and spill over in first charging tray 12 through the top edge of second charging tray 13. For example, in the example of fig. 1-4, the tray outlet 11 is disposed at the bottom of the first tray 12, the second tray 13 is disposed in the first tray 12, the slurry spraying component 2 is disposed in the second tray 13, the slurry is sprayed into the second tray 13 from the plurality of spraying holes 211 on the slurry spraying pipe 21, when the second tray 13 is filled with the slurry in the second tray 13, the slurry will overflow from the top edge of the second tray 13 and flow into the first tray 12, and the slurry in the first tray 12 can flow out from the tray outlet 11. Therefore, the second material tray 13 is arranged in the first material tray 12, so that the slurry in the second material tray 13 can flow into the first material tray 12 through the second material tray 13, and the slurry in the second material tray 13 is further ensured to be in a turbulent flow state all the time.

Alternatively, referring to fig. 2, the entire top edge of the second tray 13 is located in the same horizontal plane. For example, in the example of fig. 1, 2 and 4, the top edge of the second tray 13 is rectangular, and when the second tray 13 is full of slurry, the slurry can flow into the first tray 12 uniformly through the four sides of the top of the second tray 13. Therefore, the uniformity and stability of the slurry in the second tray 13 can be further ensured.

Alternatively, the first tray 12 and the second tray 13 can be integrally moved up and down. For example, the tray 1 may be a liftable structure. Therefore, when the second material tray 13 needs to be leveled or cleaned, the whole material tray 1 can be lowered, the operation of workers is convenient, when the coating operation is carried out, the whole material tray 1 can be lifted, the structure is simple, and the operation is easy.

As shown in fig. 4, the feeding system 200 according to the second aspect of the present invention comprises a dispensing tank 201 and a tray assembly 100, and the tray assembly 100 is the tray assembly 100 according to the first aspect of the present invention.

Specifically, batching jar 201 includes thick liquids return 2011 and thick liquids export 2012, and the thick liquids pipe 21 and the thick liquids export 2012 intercommunication of spouting of charging tray subassembly 100, and charging tray subassembly 100's charging tray discharge opening 11 links to each other with thick liquids return 2011, and charging tray subassembly 100 and batching jar 201 constitute thick liquids circulation circuit through spouting thick liquids pipe 21, charging tray discharge opening 11, thick liquids return 2011 and thick liquids export 2012.

For example, in the example of fig. 4, the powder material, the solvent and other additives may be added into the batching tank 201, the slurry is sufficiently stirred and dispersed in the batching tank 201 to form a slurry, the slurry flows out from the slurry outlet 2012 of the batching tank 201, then flows into the slurry spraying pipe 21 of the tray assembly 100 and is sprayed into the tray 1 from the spraying hole 211 of the slurry spraying pipe 21, so that the slurry in the tray 1 generates turbulence, and when the tray 1 is full of the slurry, the slurry flows out from the tray slurry outlet 11 and flows back into the batching tank 201 from the slurry return 2011, so as to achieve the recovery and circulation of the slurry. Therefore, by means of the arrangement, circulation of the slurry in the slurry circulation loop is achieved, the slurry in the material tray 1 is always in a uniform state, sedimentation of the slurry is effectively avoided, and the whole feeding system 200 is simple in structure, easy to achieve and low in cost.

According to the feeding system 200 provided by the invention, the charging tray assembly 100 and the batching tank 201 form a slurry circulation loop through the slurry spraying pipe 21, the charging tray slurry outlet 11, the slurry return opening 2011 and the slurry outlet 2012, so that the circulation of slurry between the charging tray assembly 100 and the batching tank 201 is realized, the slurry in the charging tray 1 can be always in a uniform state, and the sedimentation of the slurry is effectively avoided, so that the whole feeding system 200 is suitable for the feeding of unstable slurry, and the whole feeding system 200 is simple in structure, easy to realize and low in cost.

Optionally, referring to fig. 4, a filter screen 202 is disposed on the flow path between the tray slurry outlet 11 and the slurry return 2011. From this, through setting up filter screen 202, can filter the impurity in the thick liquids that charging tray play thick liquids mouth 11 flows out such as big particulate matter and agglomerate, avoid these impurity to flow into batching jar 201 from thick liquids return 2011, guaranteed the purity of thick liquids in batching jar 201. Further alternatively, the filter screen 202 may have a mesh size of 100 mesh to 500 mesh (inclusive).

In some alternative embodiments of the present invention, as shown in fig. 4, a first pump 203 is disposed on the flow path between the slurry outlet 2012 and the slurry spraying pipe 21, and a second pump 204 is disposed on the flow path between the slurry outlet 11 and the slurry return 2011. After the slurry flows out from the slurry outlet 2012 of the batching tank 201, the slurry enters the slurry spraying pipe 21 of the tray assembly 100 under the pumping action of the first pump body 203, then the slurry is sprayed into the tray 1 from the spraying hole 211 on the slurry spraying pipe 21, after the slurry in the tray 1 is full, the slurry flows out from the slurry outlet 11 of the tray, and flows into the batching tank 201 again from the slurry return opening 2011 under the pumping action of the second pump body 204, so that the recovery and circulation of the slurry are realized. Therefore, by arranging the first pump body 203 and the second pump body 204, the pressure of the slurry circulating between the proportioning tank 201 and the charging tray 1 is reduced, and the flowing efficiency of the slurry is improved. Also, the flow rate of the slurry can be controlled by controlling the rotation speed of the first pump body 203 or the second pump body 204.

Further alternatively, with reference to fig. 4, the first pump body 203 and the second pump body 204 are both peristaltic pumps. Because the peristaltic pump is provided with the flexible pump pipe, when the peristaltic pump works, the slurry can only contact with the pump pipe of the peristaltic pump and does not contact with the pump body of the peristaltic pump, and therefore the service life of the peristaltic pump can be prolonged. Moreover, the peristaltic pump has good leakproofness, can effectively prevent the thick liquids backward flow.

Alternatively, the material of the hose of the peristaltic pump may be silicone rubber, fluoro-rubber, teflon or the like. Therefore, as the materials have the characteristics of corrosion resistance, wear resistance, extrusion resistance and the like, the hose of the peristaltic pump can bear larger pressure, so that the service life of the peristaltic pump can be prolonged.

Alternatively, referring to fig. 4, a roller 205 may be provided above the tray 1 to perform the coating operation.

Optionally, an oxygen content detection probe, an inert gas blanket, or a vacuum may be provided in the dispensing tank 201. Thus, by the above arrangement, the safety of the entire feed system 200 can be ensured.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.