A primary powder spraying and mixing process for ceramic speckled powder materials and its mixing system

Abstract

The present invention discloses a primary powder spraying and mixing process for ceramic speckled powder materials and its mixing system. By transporting the original slurry and the primary color slurry to a stirring barrel in proportion for stirring, the mixed color slurry is obtained and sent into a B slurry barrel. The original slurry in the A slurry barrel and the color slurry in the B slurry barrel are respectively transported to a spray drying tower. The mixed AB mixture is transported to a retting bin and finally sent to a press for pressing. On the basis of a traditional spray drying tower, one set of slurry supply system is changed to two sets or more than two sets, and independent slurry stirrers and high-pressure pumps are installed in front of each set of slurry pipes. During production, according to the demand for speckled materials, the number of spray guns and the pump pressure are turned on. One drying tower can supply different color slurries through different slurry pipes, and two or more different colors of particles can be sprayed out simultaneously, and they can be retted in the bin at the same time. In addition to reducing the energy consumption of tower shutdown and tower washing, it also ensures that the moisture of the powder materials is more uniform during retting, and reduces the equipment and personnel costs for mixing.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic tile production, in particular to a one-time powder spraying mixing process for ceramic spot powder and a mixing system thereof. Background Art

[0002] Ceramic tiles are a kind of acid- and alkali-resistant porcelain or stone building or decorative material made of refractory metal oxides and semi-metal oxides through a process of grinding, mixing, pressing, glazing, and sintering. The raw materials are mostly a mixture of clay, quartz sand, etc.

[0003] The production process of ceramic tiles includes: material selection - preparation of powder - pressing and molding - drying and printing / inkjetting - firing - edge grinding and polishing - grading, packaging and warehousing; the history of ceramic tiles should be traced back to BC. Today, the production process of ceramic tiles is quite mature. The focus of technological transformation is on adjusting various process parameters, improving the structural performance of devices and equipment in each process, and at the same time improving energy utilization and increasing the use of renewable resources to respond to the national theme of energy conservation and consumption reduction.

[0004] The spotted brick products currently popular on the market generally use a variety of different spots to add to the blank to express the surface spotted effect. The production of traditional ceramic spotted bricks is to spray powder separately in a spray drying tower, and then send it into a powder bin according to different colors, and then use a batching weighing device to batch the ingredients according to the proportion requirements, and then mix the materials and feed them to the press for use. This method requires more silos, which are prone to moisture loss, and the tower needs to be stopped for cleaning after use, which invisibly increases energy consumption and production costs. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a one-time powder spraying and mixing process of ceramic spot powder, comprising the following steps:

[0006] Step 1, material preparation: put the original pulp into the A pulp barrel, put the original pulp into the first preparation barrel, put the original color pulp into the second preparation barrel, transport the original pulp in the first preparation barrel and the original color pulp in the second preparation barrel to the mixing barrel in proportion for stirring to obtain mixed color pulp, and then send the mixed color pulp to the B pulp barrel;

[0007] Step 2, feeding: the original slurry in the A slurry barrel and the color slurry in the B slurry barrel are respectively transported to the spray drying tower through the batching weighing equipment to obtain AB mixed materials;

[0008] Step 3, storage: convey the mixed powder in the spray drying tower to the aging bin via a conveyor belt;

[0009] Step 4: Pressing: Send the mixed powder in the aging bin to the press for pressing.

[0010] Preferably, the batching weighing device is a high-pressure pump.

[0011] A mixing system applied to the above-mentioned primary powder spraying and mixing process of ceramic speckled powder includes an A slurry tank, a B slurry tank, a spray drying tower, and a high-pressure pump. The A slurry tank is connected to the spray drying tower through a first conveying pipe, and the B slurry tank is connected to the spray drying tower through a second conveying pipe. The high-pressure pump is provided on both the first conveying pipe and the second conveying pipe.

[0012] Preferably, an A slurry supply pipe and a B slurry supply pipe are provided on the spray drying tower, and the A slurry supply pipe and the B slurry supply pipe are arranged in a ring on the outer wall of the spray drying tower. A number of A slurry spray guns are distributed along the ring on the A slurry supply pipe, and a number of B slurry spray guns are distributed along the ring on the B slurry supply pipe. The output ends of the A slurry spray guns and the B slurry spray guns all penetrate and extend into the spray drying tower.

[0013] Preferably, a conveyor belt is provided at the bottom of the spray drying tower, and a retting bin is provided at one end of the conveyor belt away from the spray drying tower.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: Based on the traditional spray drying tower, the present invention changes from one set of slurry supply system to two sets or more than two sets, and independent slurry stirrers and high-pressure pumps are installed in front of each set of slurry pipes. During production, according to the requirements of the speckled material, the number of spray guns and the pump pressure are turned on. One drying tower can supply different color slurries through different slurry pipes, and can simultaneously spray out two or more different colors of particles, and can be retted in the bin at the same time to complete mixing at one time. In addition to ensuring that the moisture of the powder is more uniform during retting, it also reduces the number of bins, eliminates the need to stop the tower for cleaning, thereby reducing energy consumption and reducing the cost of mixing equipment and personnel, and thus being more energy-saving and material-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the process flow chart of the present invention.

[0016] Figure 2 is the traditional process flow chart.

[0017] Figure 3 is the schematic diagram of the equipment connection structure of the present invention.

[0018] Figure 4 is the schematic diagram of the structure of the spray drying tower, A slurry supply pipe, B slurry supply pipe, A slurry spray gun, and B slurry spray gun of the present invention.

[0019] In the figure: A slurry tank 1, B slurry tank 2, spray drying tower 3, A slurry supply pipe 31, B slurry supply pipe 32, A slurry spray gun 33, B slurry spray gun 34, high-pressure pump 4, retting bin 5. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present invention will be further described below in conjunction with the accompanying drawings:

[0021] Referring to Figure 1 , a primary powder spraying and mixing process for ceramic spotted powder materials, comprising the following steps:

[0022] Step 1, preparing materials: Put the original slurry into the A slurry barrel 1, put the original slurry into the first preparation barrel, put the original color slurry into the second preparation barrel, convey the original slurry in the first preparation barrel and the original color slurry in the second preparation barrel to the mixing barrel according to a ratio for mixing to obtain a mixed color slurry, and then send the mixed color slurry into the B slurry barrel 2;

[0023] Step 2, feeding: Respectively convey the original slurry in the A slurry barrel 1 and the color slurry in the B slurry barrel 2 to the spray drying tower 3 through the batching and weighing equipment to obtain an AB mixture;

[0024] Step 3, storing: Convey the mixed powder in the spray drying tower 3 to the aging bin 5 through a conveyor belt;

[0025] Step 4, pressing: Send the mixed powder in the aging bin 5 to a press for pressing.

[0026] In this embodiment, the batching and weighing equipment is a high-pressure pump 4.

[0027] Referring to Figures 3 - 4 , a mixing system applied to the above primary powder spraying and mixing process for ceramic spotted powder materials, comprising an A slurry barrel 1, a B slurry barrel 2, a spray drying tower 3 and a high-pressure pump 4. The A slurry barrel 1 is connected to the spray drying tower 3 through a first conveying pipe, the B slurry barrel 2 is connected to the spray drying tower 3 through a second conveying pipe, and high-pressure pumps 4 are arranged on both the first conveying pipe and the second conveying pipe.

[0028] In this embodiment, an A material supply pipe 31 and a B material supply pipe 32 are arranged on the spray drying tower 3, and the A material supply pipe 31 and the B material supply pipe 32 are arranged in a ring on the outer wall of the spray drying tower 3. A plurality of A material spray guns 33 are distributed along the ring on the A material supply pipe 31, a plurality of B material spray guns 34 are distributed along the ring on the B material supply pipe 32, and the output ends of the A material spray guns 33 and the B material spray guns 34 all penetrate and extend into the spray drying tower 3.

[0029] In this embodiment, a conveyor belt is arranged at the bottom of the spray drying tower 3, and an aging bin 5 is arranged at one end of the conveyor belt away from the spray drying tower 3.

[0030] Referring to Figures 1 - 2, based on the traditional spray drying tower 3, the present invention changes one set of slurry supply system to two sets or more than two sets, and installs independent slurry agitators and high-pressure pumps 4 in front of each slurry pipe. During production, according to the demand for spotted materials, the number of spray guns and pump pressure are turned on. One drying tower can supply different color pastes through different slurry pipes, and can spray out two or more different colors of particles at the same time, and can be stored in the warehouse for retting at the same time to complete mixing at one time. In addition to ensuring more uniform moisture in the retted powder, it also reduces the number of bins and eliminates the need to stop the tower for cleaning, thereby reducing energy consumption and the cost of mixing equipment and personnel, and being more energy-saving and material-saving.

[0031] In summary, the above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention; any ordinary technical personnel in the industry can smoothly implement the present invention according to the above; however, those skilled in the art, without departing from the technical solution of the present invention, can make some changes, modifications and equivalent changes in the evolution using the technical content disclosed above, which are all equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A primary powder spraying and mixing process for ceramic speckled powder materials, characterized in that It includes the following steps: Step 1, material preparation: Put the original pulp into the A slurry barrel (1), put the original pulp into the first material preparation barrel, put the original color pulp into the second material preparation barrel, convey the original pulp in the first material preparation barrel and the original color pulp in the second material preparation barrel to the mixing barrel in proportion for mixing to obtain the mixed color slurry, and then send the mixed color slurry into the B slurry barrel (2); Step 2, feeding: Respectively convey the original pulp in the A slurry barrel (1) and the color slurry in the B slurry barrel (2) to the spray drying tower (3) through the high-pressure pump (4). Among them, the A slurry barrel (1) conveys the original pulp to the A material supply pipe (31) on the spray drying tower (3), and the B slurry barrel (2) conveys the color slurry to the B material supply pipe (32) on the spray drying tower (3). The A material supply pipe (31) sprays materials into the spray drying tower (3) through a number of A material spray guns (33) distributed in a ring, and the B material supply pipe (32) sprays materials into the spray drying tower (3) through a number of B material spray guns (34) distributed in a ring to obtain the AB mixture of different color particles; Step 3, storage: Convey the mixed powder in the spray drying tower (3) to the aging bin (5) through the conveyor belt; Step 4, pressing: Send the mixed powder in the aging bin (5) to the press for pressing.

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