CN117901247A - Material feeding and distributing system and method applied to ceramic dry powder blank making and forming - Google Patents

Abstract

The invention provides a feeding and distributing system and a feeding and distributing method applied to ceramic dry powder blank making and forming. The material feeding and distributing system comprises: the rotary screen is arranged before powder enters the storage bin, and the flat screen is arranged between the storage bin and the cloth hopper; preferably, the powder material sieved out in a flat screen manner directly falls into the cloth hopper. The system solves the problems that the feeding is intermittent, the feeding is not blanking, the powder agglomeration is difficult to eliminate, and meanwhile, the technical problem of product convex-concave waist defects caused by uneven distribution is also solved.

Description

Material feeding and distributing system and method applied to ceramic dry powder blank making and forming

The present application claims priority from the following prior applications: the patent application number is 202311823001.1, and the name of the prior application is 'a feeding and distributing system and method applied to ceramic dry powder blank making and forming'. The entire contents of said prior application are incorporated by reference into the present application.

Technical Field

The invention belongs to the technical field of building ceramic and sintered brick and tile production, and particularly relates to a feeding and distributing system and method for a powder material obtained by a ceramic dry method in a blank forming link of a press.

Background

The conventional ceramic bricks and sintered bricks are mostly prepared by adopting a wet process powder preparation process at present, wherein the process flow comprises raw material pulping and spray drying granulation, specifically, wet ball milling is carried out, ceramic raw materials mixed in proportion are ground into slurry with required fineness, spray drying granulation is carried out to obtain powder, and then the powder enters a blank forming link of a press machine.

Wherein, pulping is carried out by a ball mill, pulverizing and granulating are carried out by a spray drying tower, ceramic slurry with water content of about 30% -40% is formed after ceramic formula materials are subjected to wet ball milling and grinding, then powder is prepared by the spray drying tower with hot air at the temperature of about 700 ℃ -900 ℃, the water content of the powder particles is about 7% -8%, the surface of the particles is smooth, the particles are internally wet, the strength is not easy to break and pulverize, and the powder mobility is good during press forming.

However, the conventional wet granulation process has the following drawbacks:

1. And the energy consumption is high. The wet milling process is to carry out wet milling to form slurry and then dry, so that a large amount of fuel and water are consumed, and the power consumption of the ball mill is also high. The pulverizing process consumes 85kg coal (or 40kg natural gas) and 530kg water.

2. Emission problems. The wet pulverizing process consumes fossil energy such as natural gas, which can bring a large amount of carbon dioxide emission and increase production cost, and if the heat source adopts a coal-fired mode, a large amount of pollutants such as SOx, NOx, dust and the like can be discharged.

The existing ceramic dry granulation process flow is that the formula materials are mixed on line and directly ground by a vertical mill, after grinding to the fineness of 2 percent (the water content is about 2 percent) of the required 250-mesh screen residue, the raw material powder is sprayed and excessively wet, the excessively wet material particles fall into a granulation disc below, the initial material particles are formed by rolling, the material particles then enter fluidized bed drying equipment for drying treatment, the water content of the initial material particles is reduced to 7 percent from 12 percent of the initial material particles, dry forming powder is formed, the powder is adhered with a plurality of powder particles by water to form 20-80-mesh powder particles by using the water as an adhesive, the water content inside and outside the particles is uniform, the outer point surface is rough, the strength is low, the powder is easy to crush and then the powder is conveyed to a press, and the green brick is formed when pressed.

Compared with the traditional wet process, the dry process does not need a large amount of water in the grinding link, the atomization water spraying amount in the granulating link is very small, the fuel amount required by later drying is greatly reduced, and the method has great energy advantages in the aspects of energy conservation and consumption reduction.

However, the current ceramic dry granulation process is in a research and development stage, and with the advancement of production practice, the research and summary of process theory are gradually maturing. In production practice, the technical personnel also find that the following defects exist in the green compact forming link of the ceramic dry granulation powder:

1. The dry powder particles are bonded by using water as an adhesive, so that the particle strength is poor and the self-powder phenomenon is serious.

2. Unlike wet particles, dry powder particles are particles formed by rapid evaporation of water at high temperature by slurry droplets, but are adhered by particles, and even though the particles are subjected to multistage spheronization, the surface of the dry powder particles cannot reach the characteristics of smoothness and good fluidity of the surface of the wet particles.

3. Based on the characteristics of dry powder, the wall adhesion of a storage bin is not baited in the actual press pressed green brick forming production link, the wall adhesion and baiting of a cloth hopper are not uniform, the cloth grid is not uniformly distributed, the convex-concave waist of a press pressed green brick is serious, the storage bin, the cloth hopper and grid fine powder are seriously adhered to form powder clusters, the powder clusters cannot be self-pulverized in the primary pressing process of sintering the green brick into the brick, the powder clusters exist in the secondary pressing process of compacting and combining the brick, the density of the powder clusters is small, the shrinkage of the sintering link is easy to be caused, the special product defect of dry powder making, namely the convex-concave waist, appears on the brick surface, and the problem of 'cancer' of the dry powder making process is hardly solved.

In order to solve the technical problems, the prior art adopts the methods of discharging the dome cone, assisting in air vibration and electric vibration, heating the bin cone and the cloth hopper shell by using the mixing heat belt, and the like, and does not obtain a satisfactory stable production effect. Therefore, the realization of smooth material distribution and the solution of the defects of dry powder dough products have become the key of success and failure of the ceramic dry process.

Based on the problems of the powder produced by the ceramic dry powder process, such as unsmooth, low strength, easy pulverization, easy wall sticking, poor fluidity, uneven distribution and multiple product defects, the invention provides an effective structural device and method suitable for the characteristics of the powder to improve the molding difficulty of a press, which is a technical problem to be solved in the field.

Disclosure of Invention

The invention provides a feeding and distributing system applied to ceramic dry powder blank making and forming, which comprises the following components: the rotary screen is arranged before powder enters the storage bin, and the flat screen is arranged between the storage bin and the cloth hopper; preferably, the powder material sieved out in a flat screen manner directly falls into the cloth hopper.

According to the embodiment of the invention, the rotary screen comprises a screen body, a material collecting inclined hopper and a supporting column, wherein the screen body is obliquely arranged, an anti-sticking layer is arranged on the inner wall of the material collecting inclined hopper, a small vibrating net hammer is arranged on the supporting rod, and a row brush for cleaning nets is arranged along the direction of rotation for mounting and attaching nets.

According to an embodiment of the invention, the screen mesh size of the screen body is 8-12 meshes.

According to an embodiment of the present invention, the flat screen includes a screen mesh, a guide mesh, and upper and lower clamping frames for fixing the screen mesh and the guide mesh, the screen mesh is disposed in a space formed by the upper and lower clamping frames, and the guide mesh is disposed outside the space formed by the upper and lower clamping frames for guiding out a screen residue that cannot pass through the screen mesh.

Preferably, the mesh size is 4-6 mesh, and/or the mesh size of the guide mesh is 14-18 mesh (e.g., 16 mesh);

preferably, the guide net is arranged in a downward inclined manner along the fixed ends of the upper clamping net frame and the lower clamping net frame.

According to the embodiment of the invention, the storage bin is a storage bin with a lower cone at the upper part, the cone is an eccentric cone, the inclination of a cone main body is preferably more than 45 degrees, and a feed opening positioned on the cone is a rectangular opening.

According to the embodiment of the invention, the anti-sticking layer is arranged on the inner wall of the storage bin.

According to the embodiment of the invention, the storage bin is arranged above the material distributing vehicle, the center line of the storage bin in the left-right direction is aligned with the center line of the press, the center line of the storage bin in the front-back direction is aligned with the center of the material distributing vehicle, and the material loading and unloading indicators are arranged at the same time.

According to the embodiment of the invention, the feeding and distributing system further comprises a flat plate blanking device arranged at the blanking opening of the storage bin.

Further, the feeding and distributing system further comprises a first powder conveying device, the first powder conveying device is arranged between the flat plate blanking device and the flat screen, and powder discharged by the flat plate blanking device directly flows into the flat screen through the first powder conveying device.

According to an embodiment of the invention, the cloth hopper is provided with an upper opening and a lower opening, wherein the upper opening is a horn opening, and the lower opening is a straight opening; preferably, the size of the flare is not smaller than the size of the flat screen mesh to facilitate receiving.

Further, the lower opening is provided with a sealing device, and the inner wall of the lower opening is provided with an anti-adhesive layer.

According to an embodiment of the invention, the feeding and distributing system further comprises a distributing vehicle, wherein a distributing grid is arranged on the distributing vehicle, and preferably the length of the distributing hopper is designed with reference to the width of the distributing grid. Preferably, the surface of the cloth grille is provided with an anti-adhesive layer.

According to an embodiment of the invention, the feed distribution system further comprises a second powder conveying device arranged before the rotary screen and used for conveying powder produced by dry granulation to the rotary screen. Preferably, the second powder conveying device is a PU anti-sticking belt.

According to an embodiment of the invention, the feeding and distributing system further comprises a third powder conveying device, wherein the third powder conveying device is used for conveying powder from the rotary screen material receiving inclined hopper to the storage bin. For example, the third powder conveying device is a large-lift-angle conveying belt or a bucket elevator, and an anti-sticking layer is preferably arranged on the inner wall of a lifting bucket of the bucket elevator.

According to a preferred embodiment of the present invention, the feed distribution system comprises: rotary screen, flat screen, storage bin, material distributing hopper and material distributing vehicle;

The rotary screen is arranged before powder enters the storage bin, the flat screen is arranged between the storage bin and the cloth hopper, and the powder which is sieved out of the flat screen directly falls into the cloth hopper;

The rotary screen comprises a screen body, a material collecting inclined hopper and a supporting column, wherein the screen body is obliquely arranged, an anti-sticking layer is arranged on the inner wall of the material collecting inclined hopper, a small screen shaking hammer is arranged on a supporting rod, and a row brush for cleaning a screen is arranged along the direction of rotation; the aperture of the screen mesh of the screen body is 8-12 meshes;

the flat screen comprises a screen, a guide screen, an upper clamping screen frame and a lower clamping screen frame, wherein the upper clamping screen frame and the lower clamping screen frame are used for fixing the screen and the guide screen; the aperture of the screen is 4-6 meshes, and the aperture of the guide net is 14-18 meshes; the guide net is obliquely arranged downwards along the fixed ends of the upper clamping net frame and the lower clamping net frame;

The storage bin is a storage bin with a lower cone at the upper part, the cone is an eccentric cone, the inclination of the cone main body is more than 45 degrees, and a feed opening positioned on the cone is a rectangular opening; the inner wall of storage silo sets up the anti-sticking layer.

According to an embodiment of the present invention, the material of the anti-sticking layer may be teflon.

According to an embodiment of the present invention, the feeding and distributing system may further include color bins, and the number of the color bins is set according to need.

Further, the feeding and distributing system further comprises a distributing hopper and a cylindrical distributing roller, wherein the distributing hopper and the cylindrical distributing roller are arranged between the flat screen and the distributing hopper.

Further, the cylindrical distributing roller is divided into a pigment cylindrical distributing roller and a base material cylindrical distributing roller; preferably, the outer edge of the pigment cylindrical material distribution roller is provided with pits or grooves by using a thick PU anti-sticking layer, and the base material cylindrical material distribution roller is a flat roller.

According to an embodiment of the invention, the system further comprises a press, preferably a die-less press. The press mold is selected from an isostatic pressing mold or a micro powder exhausting mold, and the problem of inconsistent green brick density caused by press molding can be solved by using the press mold.

The invention also provides a feeding and distributing method applied to ceramic dry powder blank making and forming, and the feeding and distributing system is used.

Advantageous effects

The feeding and distributing system suitable for ceramic dry powder blank making and forming solves the problems that the feeding is intermittent, the blanking is not carried out, powder agglomeration is difficult to eliminate, and meanwhile, the technical problem of product convex-concave waist defects caused by uneven distribution is solved.

Drawings

FIG. 1 is a schematic diagram of a single material feeding and distributing system for ceramic dry powder blank forming.

Fig. 2 is a schematic diagram of the structure of the discharge cone of the storage bin in the system of fig. 1.

Fig. 3 is a schematic view of the structure of a flat screen in the system of fig. 1.

Fig. 4 is a schematic view of the structure of the cloth hopper in the system of fig. 1.

Fig. 5 is a schematic view of the rotary screen of the system of fig. 1.

Fig. 6 is a schematic structural diagram of a dry powder feed distribution system with multiple feed distribution systems.

Fig. 7 is a schematic diagram of a plate unloader in the system of fig. 1 or fig. 6.

FIG. 8 is a schematic view of the construction of a cylindrical distribution roll of colorant in the system of FIG. 6.

Reference numerals:

1-PU anti-sticking belt, 2-rotary screen, 2-1 screen body, 2-2 material collecting inclined hopper, 3-PU anti-sticking large lift angle conveyer belt, 4-storage bin, 5-flat plate blanking device, 6-flat screen, 6-1 upper clamping net frame, 6-2 lower clamping net frame, 6-3 screen, 6-4 guide net, 7-cloth hopper, 8-cloth car, 9-cloth grille, 10-press, 11-cloth belt, 12-color bin, 13-batching hopper, 14-base material cylinder cloth roller and 15-pigment cylinder cloth roller.

Detailed Description

The feeding and distributing system for ceramic dry powder blank making and forming aims at solving the problems of intermittent feeding, no blanking and powder agglomeration elimination, and at the same time, aims at solving the problem of convex-concave waist of a product caused by uneven distribution. Specifically solves the following problems:

1. because the ceramic dry powder particle is the persistence of water-bonded table rolling granulation, the particle strength and the appearance smoothness of the ceramic dry powder particle cannot reach the particle effect of a wet method no matter how the ceramic dry powder particle is rolled by a plurality of stages of granulation discs, and the ceramic dry powder particle can be only compensated by a method in a follow-up blank forming link of a press machine, and a green brick is formed by the method.

2. Because the ceramic dry-method powder particles are easy to pulverize, the ceramic dry-method powder particles are extremely easy to adhere to all contact objects under the condition of containing 7% of water, and thus the problems of sieving selection and contact object surface anti-sticking treatment must be solved.

3. Because of the problems of the ceramic dry powder preparation granules, the short process from granulation to press forming is required to be realized as much as possible, less links are contacted, the unsmooth structure adhesion discharging is reduced, and the adaptive structural design is carried out on the storage bin and the distribution hopper.

4. Because of the problems of the ceramic dry powder preparation granules, in order to ensure the solution of serious dry defects of product powder balls and convex-concave waists, the flaky powder balls formed by the quasi-agglomeration of the powder in the storage process of the powder and the fine powder caused by long-time contact of the powder and objects are eliminated again before a hopper is arranged.

The technical scheme adopted by the invention for solving the technical problems comprises the following steps:

The method can solve the problem of dry powder preparation and can ensure half of the success of the ceramic dry powder preparation energy-saving process technology. In order to ensure the process integrity, the invention comprises the steps of forming and blanking from a discharge hole of a dry granulator to a press mould, and mainly comprises the following aspects:

1. And (3) a powder screening step after dry granulation: powder produced by the dry-method granulator is conveyed to a rotary screen through a PU anti-sticking belt for screening, the rotary screen is required to be directly over 1.2m and over 4m long, the treatment capacity is about 40 tons/hour, and the length of the rotary screen is increased by 1m when the treatment capacity is increased by 10 tons/hour. The rotary screen has the use specification of 8-12 meshes, and the larger the rotary screen is, the better the rotary screen is, and an automatic net cleaning device is arranged. The inner wall of the powder collecting funnel is sprayed with an iron Buddha Long Fangnian coating, so that the application of other sieves in the link is eliminated from the aspects of economy and screening efficiency.

2. And (3) storing powder: powder from the rotary screen hopper is transmitted to the square bin top through a PU large-lift-angle anti-sticking belt or a lifter and then enters a single square anti-sticking storage bin.

3. Powder cluster prevention screening link: the powder from the storage bin needs to be screened again by a special-shaped flat screen before being distributed and used.

4. Uniform cloth of convex-concave waist is prevented link: the powder after being screened by the flat screen directly falls into a straight-through anti-sticking cloth hopper, and then is distributed to an anti-sticking grid by the program design requirement of a cloth hopper pressing machine.

5. The design is to design a single powder blank brick, one or more small square bins are added for the design of two kinds of powder imitating marble, and a marble distributing device is added between the lower end of each bin and a flat screen.

The technical scheme of the invention will be further described in detail below with reference to specific embodiments. It is to be understood that the following examples are illustrative only and are not to be construed as limiting the scope of the invention. All techniques implemented based on the above description of the invention are intended to be included within the scope of the invention.

The structure of the system and its workflow will be described in detail with reference to the above drawings:

In a feeding and distributing system shown in fig. 1, powder produced by dry granulation is conveyed to a large-sized rotary screen 2 (see fig. 5) for screening through a PU anti-sticking belt 1. The diameter of the screen body 2-1 of the rotary screen 2 is 1.2m, the cylinder length is more than 4 m-6 m, the screen mesh is 8-12 meshes, six axial supporting rods are additionally arranged every 1m, the axial supporting rods are connected to a hoop with the width of 60mm and the cylinder diameter of 1.2m, and the screen mesh is hooped. The small hammers for vibrating the net are arranged on the supporting rods, and the net is cleaned while the net is arranged and brushed along the direction of rotation. The inner wall of the material collecting inclined hopper 2-2 of the rotary screen is sprayed with a teflon anti-sticking layer. The rotating speed and the frequency conversion of the rotary screen are adjustable.

Powder from the receiving hopper of the rotary screen 2 is lifted to a storage bin 4 through a PU anti-sticking large lift angle conveyor belt 3. The powder can be conveyed by a bucket elevator according to the space, and the bucket used is required to be sprayed with a teflon anti-sticking coating.

The storage bin 4 (see fig. 2) is designed to ensure that the blanking is smoothly designed as an upper lower cone, and the cone is an eccentric cone. The inclination of the cone body is more than 45 degrees, the blanking opening is designed to be a rectangular opening, the width is 200mm, and the length of the cloth hopper 7 matched with the product specification of the press 10 is the same. And spraying a teflon anti-sticking coating on the inner wall of the bin. The side length of the upper square bin can be designed to be 2.5-4 m, the material storage amount is required to meet the requirement of the working time of the press 10 for 4-6 h (20-50T), the material storage amount is placed above the material distribution vehicle 8, the center line in the left-right direction is aligned with the center line of the press 10, the center line in the front-back direction is aligned with the center of the material distribution hopper 7, and an upper material level gauge and a lower material level gauge are arranged.

The powder outlet of the storage bin 4 is provided with a flat plate feeder 5 (see fig. 7), the discharge hole is used for discharging in a 20mm horizontal long hole in the discharge direction of the press, and the discharged powder directly flows into the flat screen 6 through the distribution belt 11 to be screened again.

The screen 6-3 of the flat screen 6 (see fig. 3) is 4-6 mesh, the guide screen 6-4 is 16 mesh, and the screen 6-3 and the guide screen 6-4 are fixed by the upper clamping frame 6-1 and the lower clamping frame 6-2. The screen 6-3 is arranged in the space formed by the upper clamping screen frame 6-1 and the lower clamping screen frame 6-2, the guide screen 6-4 is arranged outside the space formed by the upper clamping screen frame 6-1 and the lower clamping screen frame 6-2, and the screen residue flows into the guide screen 6-4 through a guide port of the back press. The upper and lower clamping net frames 6-3 and the serial number 6-4 are made of L60x6 angle steel, and the upper and lower material guiding openings are formed for guiding materials simultaneously when the net is clamped. The inner wall is sprayed with a teflon anti-sticking coating. The flat screen 6 is additionally arranged for eliminating the defect of powder agglomeration caused by fine powder agglomeration and bin agglomeration.

Powder from the flat screen 6 directly falls into a cloth hopper 7 (see fig. 4), the cloth hopper 7 is provided with an upper port which is a horn mouth for convenient material receiving, a lower port which is a straight port, the width is 180-200 mm, and the length is provided with a reference cloth car 8). The lower opening is provided with a sealing device, and all the inner walls are sprayed by teflon. The cloth hopper 7 needs to be provided with a level gauge.

In the ceramic production process, in order to pursue the marble-like effect, manufacturers need a plurality of materials and cloth to make the green body have marble lines. The system is shown in FIG. 6, with 1-2 additional color bins 12, which can be designed to be 1/4 of the volume of the storage bin 4 due to the low color usage. The process requirements can be met only by adding a proportioning hopper 13, a cylindrical distributing roller and a distributing belt (serial number 11) between the flat screen 6 and the distributing hopper 7, wherein the outer edge of the pigment cylindrical distributing roller 15 (see figure 8) is provided with pits or grooves by using a thick PU anti-sticking layer, the texture requirements are met in the process of conveying and blanking, and the base cylindrical distributing roller 14 is required to be a flat roller. Meanwhile, powder is placed in a bin, and a conversion belt is arranged at the top of the large-lift-angle conveying belt 3, so that the placing of various materials is ensured.

In a preferred embodiment, the distribution grid 9 for the press 10 to shape the blank must be sprayed with a teflon release coating; and/or the bottom plate glass of the material distributing trolley 8 of the press (serial number 10) needs to be heated to 35-50 ℃ to prevent the powder from adhering to the glass plate and rubbing the powder sheets; and/or each part is designed and operated according to the automatic control requirement; and/or, when the invention is used for producing the foamed ceramic, the cloth hopper 7 directly distributes cloth to the turn frames.

The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A feed distribution system applied to ceramic dry powder blank making and forming, which is characterized by comprising: the rotary screen is arranged before powder enters the storage bin, and the flat screen is arranged between the storage bin and the cloth hopper; preferably, the powder material sieved out in a flat screen manner directly falls into the cloth hopper.

2. The feeding and distributing system according to claim 1, wherein the rotary screen comprises a screen body, a material collecting inclined hopper and a supporting column, the screen body is obliquely arranged, an anti-sticking layer is arranged on the inner wall of the material collecting inclined hopper, a small vibration net hammer is arranged on a supporting rod, and a row brush for cleaning nets is arranged along the direction of turning to mount and paste nets;

preferably, the screen mesh of the screen body is 8-12 meshes.

3. The feed distribution system according to claim 1 or 2, wherein the flat screen comprises a screen mesh, a guide mesh, and upper and lower clamping frames for fixing the screen mesh and the guide mesh, the screen mesh being disposed in a space formed by the upper and lower clamping frames, the guide mesh being disposed outside the space formed by the upper and lower clamping frames for guiding out a screen residue that cannot pass through the screen mesh;

preferably, the pore diameter of the screen is 4-6 meshes, and/or the pore diameter of the guide net is 14-18 meshes;

preferably, the guide net is arranged in a downward inclined manner along the fixed ends of the upper clamping net frame and the lower clamping net frame.

4. A feed distribution system according to any of claims 1-3, wherein the storage bin is a storage bin with an upper and a lower cone, the cone is an eccentric cone, preferably the cone body inclination is >45 degrees, the feed opening in the cone is a rectangular opening, and an anti-adhesive layer is arranged on the inner wall of the storage bin;

Preferably, the storage bin is arranged above the material distributing vehicle, the left and right central line of the storage bin is aligned with the central line of the press, the front and rear central line of the storage bin is aligned with the center of the material distributing vehicle, and the material level gauge is arranged at the same time.

5. The feed distribution system according to any one of claims 1 to 4, further comprising a flat plate blanking device arranged at a blanking port of the storage bin;

further, the feeding and distributing system further comprises a first powder conveying device, the first powder conveying device is arranged between the flat plate blanking device and the flat screen, and powder discharged by the flat plate blanking device directly flows into the flat screen through the first powder conveying device.

6. The feed distribution system according to any one of claims 1 to 5, wherein the distribution hopper has an upper mouth and a lower mouth, the upper mouth being a flare, the lower mouth being a straight mouth; preferably, the size of the flare is not smaller than the size of the flat screen mesh to facilitate receiving.

Further, the lower opening is provided with a sealing device, and the inner wall of the lower opening is provided with an anti-adhesive layer.

7. The feed distribution system according to any one of claims 1-6, further comprising a distribution vehicle, wherein a distribution grid is arranged on the distribution vehicle; preferably, the surface of the cloth grille is provided with an anti-adhesive layer.

8. The feed distribution system according to any one of claims 1 to 7, further comprising a second powder conveying device arranged before the rotary screen for conveying the powder produced by dry granulation to the rotary screen;

and/or the feeding and distributing system further comprises a third powder conveying device, wherein the third powder conveying device is used for conveying powder from the rotary screen material collecting inclined hopper to the storage bin.

9. The feed distribution system according to any of claims 1-8, wherein the feed distribution system further comprises a color bin;

further, the feeding and distributing system further comprises a distributing hopper and a cylindrical distributing roller, wherein the distributing hopper and the cylindrical distributing roller are arranged between the flat screen and the distributing hopper;

Further, the cylindrical distributing roller is divided into a pigment cylindrical distributing roller and a base material cylindrical distributing roller; preferably, a pit or a groove is designed on the outer edge of the pigment cylindrical material distribution roller by using a thick PU anti-sticking layer, and the base material cylindrical material distribution roller is a flat roller;

preferably, the system further comprises a press, preferably a die-less press;

Preferably, the press die is selected from an isostatic die or a micropowder exhaust die.

10. A feeding and distributing method applied to ceramic dry powder blank making and forming, which uses the feeding and distributing system as claimed in any one of claims 1-9.