Powder distribution device of wetting tower for wetting and pulverizing architectural ceramics

Abstract

The utility model discloses a powder distribution device of a wetting tower for wetting and pulverizing building ceramics, which comprises a powder pulverizing bin, a discharge port of the powder pulverizing bin is communicated with a powder feeder and a cylindrical disperser, a dispersing air pipe is arranged in the cylindrical disperser, an air supply device is arranged outside the cylindrical disperser, and the air supply device is communicated with the dispersing air pipe. The bottom end of the cylindrical disperser is communicated with an inverted-cone disperser, the air outlet end of the dispersion air pipe extends into the inverted-cone disperser, the bottom end of the inverted-cone disperser is communicated with a wetting tower body, a perforated mesh is arranged at the communication position of the inverted-cone disperser and the wetting tower body, a water mist assembly is arranged in the wetting tower body, and the bottom of the water mist assembly is communicated with a plurality of water mist spraying devices. Through the design and arrangement, the effect and the yield of wetting powder making can be greatly improved, meanwhile, unnecessary equipment investment is reduced, and the powder yield of wetting powder making is also improved; and the process problems existing in forming, drying and firing in the production process of the architectural ceramics due to wet particles generated during water drop granulation during dry-method powder preparation are further avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to building ceramic powder making technical field, especially relate to a building ceramic wet powder making wet tower powder distribution device. BACKGROUND

[0002] Building ceramic powder making can be divided into wet powder making and dry powder making according to grinding method; Wet powder making process is relatively mature, and is more widely used, and the wet powder making powder particle is single body, and the hollow shell is discharged by internal moisture, which eliminates the compactness of the shell, so that the stale particle can be powdered when being lightly pressed for the first time, thereby meeting the powder pressing plasticity requirement, and stable production can be achieved, but there are problems of high energy consumption and discharge; Dry powder making has problems of not being mature enough, and the particle in dry powder making is gathered into a particle by water droplets, and the powder particle generated by the method is difficult to discharge moisture from the inside, resulting in inconsistent drainage when the brick blank is dried, thereby producing fingertip cracks on the surface of the brick blank in the firing link, and the cracks in the interior make the brick blank easy to rot and break; At the same time, the water loss of the surface layer before the powder particle is formed will cause the peeling of the outer layer of the powder particle, and the production process is not stable enough, resulting in low yield of dry powder making, and currently, the actual application of the process is very few in the building ceramic industry.

[0003] Whether it is wet powder making or dry powder making, the powder particle becomes the core of the problem, and due to the problems of high energy consumption, high discharge and high pollution of wet powder making, the building ceramic industry has always regarded dry powder making as a better solution for many years.

[0004] Due to the production quality problems of dry powder making for many years, the process of dry powder making is difficult to be widely promoted in the industry, and the fundamental reason is also in the powder particle. Therefore, the existing granulation production method using water droplets to bond powder particles must be changed. The existing dry powder making granulation tower is blown away by the air blower with inner spiral or outer spiral structure, or straight cylinder type discharging, and the powder is dispersed from top to bottom under the influence of gravity, which is still not enough to uniformly blow away the powder, and wet particles are easily produced, which affects the quality defects of the product in the forming, drying and firing production links, and the production capacity of the production method is relatively low. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a building ceramic wet powder making wet tower powder distribution device to solve the problems in the prior art.

[0006] In order to achieve the above object, the utility model provides the following scheme: the utility model provides a kind of building ceramic wetting powder preparation wetting tower powder distribution device, including grinding storehouse, the powder feeder is communicated with the discharge opening of grinding storehouse, the cylindrical disperser is communicated with the discharge opening of powder feeder, dispersing air pipe is provided in the cylindrical disperser, air supply equipment is equipped outside the cylindrical disperser, the air outlet of air supply equipment is communicated with the dispersing air pipe, the bottom end of the cylindrical disperser is communicated with inverted cone disperser, the outlet end of dispersing air pipe extends to inverted cone disperser, the bottom end of inverted cone disperser is communicated with wetting tower body, the perforated screen is arranged at the communicating opening of inverted cone disperser and wetting tower body, water mist assembly is equipped in wetting tower body, the bottom of water mist assembly is communicated with several fine water mist spraying devices.

[0007] Preferably, the dispersing air pipe is communicated with a dispersing branch air pipe, the end of the air outlet of the dispersing branch air pipe is close to the inner wall of the cylindrical disperser, and the air outlet of the dispersing branch air pipe is provided with a first diffusion air outlet.

[0008] Preferably, two first diffusion air outlets are horizontally and symmetrically arranged at the air outlet of the dispersing branch air pipe.

[0009] Preferably, the end of the air outlet of the dispersing air pipe is located at one third of the total height of the inverted cone disperser.

[0010] Preferably, the end of the air outlet of the dispersing air pipe is sealed, and a plurality of second diffusion air outlets are arranged at the position close to the end of the air outlet of the dispersing air pipe.

[0011] Preferably, the position close to the end of the air outlet of the dispersing air pipe is arranged with one row, two rows, three rows, four rows or five rows of second diffusion air outlets which are staggered and drilled along the circumference.

[0012] Preferably, the inverted cone disperser is in the shape of a trumpet mouth, and the end with a larger opening of the inverted cone disperser is communicated with the wetting tower body.

[0013] Preferably, the diameter of the end with a larger opening of the inverted cone disperser is two thirds of the diameter of the top of the wetting tower.

[0014] Preferably, the air outlet of the air supply equipment horizontally extends into the cylindrical disperser to directly connect the dispersing air pipe, the part of the dispersing air pipe in the cylindrical disperser is located between the top and the middle of the center of the cylindrical disperser, and the dispersing air pipe vertically extends to the middle and lower part of the center of the inverted cone disperser.

[0015] Preferably, the perforated screen is made of stainless steel.

[0016] The utility model discloses the following technical effects:

[0017] The stable powder supply is realized through the design of the powder bin, the instant and accurate powder supply amount is realized through the valve gate type metering scale design, the preliminary dispersion of the powder into the inverted cone disperser is realized through the cylinder disperser, the further dispersion of the powder is realized through the design of the blast pipe inserted into the center of the cylinder disperser and the inverted cone disperser, the further dispersion of the powder is realized through the punched screen at the communication port of the inverted cone disperser and the wetting tower body, so that the uniform dispersion effect is achieved; the above design arrangement can greatly improve the wetting and milling effect and the yield, simultaneously, unnecessary equipment investment is reduced, the powder yield of the wetting and milling is improved, and the process problems of the building ceramics in the forming, drying and sintering in the production process caused by the wet granules in the granulation by water drops in the dry milling are further avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the present application illustrated in the drawings are presented by way of example or for purpose of illustration and not limitation.

[0019] Figure 1 It is a whole schematic view of the present application;

[0020] Figure 2 It is a whole sectional view schematic view of the present application;

[0021] Figure 3 It is a dispersing branch air pipe schematic view of the present application;

[0022] Figure 4 It is a dispersing air pipe schematic view of the present application.

[0023] In the drawings: 1, a powder mill bin; 2, a powder feeder; 3, a dispersing branch air pipe; 31, a first dispersing air port; 4, a dispersing air pipe; 41, a second dispersing air port; 5, a cylinder disperser; 6, an inverted cone disperser; 7, a punched screen; 8, a wetting tower body; 9, a water mist part; 91, a water mist assembly; 10, a air supply equipment. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0026] Referring to Figures 1-4 As shown in the figure, the embodiment provides a building ceramic wet milling wet tower powder distribution device, which comprises a milling bin 1, a powder feeder 2 connected to the discharge port of the milling bin 1, a cylindrical disperser 5 connected to the discharge port of the powder feeder 2, a dispersing air pipe 4 arranged in the cylindrical disperser 5, a air supply equipment 10 arranged outside the cylindrical disperser 5, an air outlet of the air supply equipment 10 being connected to the dispersing air pipe 4, a inverted cone disperser 6 connected to the bottom end of the cylindrical disperser 5, an air outlet end of the dispersing air pipe 4 extending into the inverted cone disperser 6, a wet tower body 8 connected to the bottom end of the inverted cone disperser 6, and a punched screen 7 arranged at the connecting port of the inverted cone disperser 6 and the wet tower body 8. A water mist assembly 91 is arranged in the wet tower body 8, and a plurality of fine water mist spraying devices are connected to the bottom of the water mist assembly 91.

[0027] The milling bin 1 is used for ensuring continuous and stable powder supply. A feeding level meter and a discharging level meter are arranged on the milling bin 1, and the feeding level meter and the discharging level meter are connected to the central control room through electrical signals. The powder feeder 2 directly connected to the bottom of the milling bin 1 is used for controlling the powder flow and speed. The powder feeder 2 has a valve gate type metering scale function, and is connected to the central control room through electrical signals. The air supply equipment 10 is a high-pressure air blower. The high-pressure air blower inputs into the cylindrical disperser 5 through an air outlet, and performs primary dispersion on the powder. The inverted cone disperser 6 performs secondary dispersion on the primary dispersed powder through the dispersing air pipe 4. The inverted cone disperser can achieve better powder dispersion effect. The powder dispersed for the second time is dispersed for the third time through the punched screen 7, so that the powder can be fully dispersed. When the powder enters the wet tower body 8 for wetting, better wetting effect can be achieved. The water mist assembly 91 is supplied with water through a water mist component 9. The water mist component 9 is connected to the water mist assembly 91 through a water mist component 9 of an external water supply device. The water mist assembly 91 atomizes the water into fine water mist. The fine water mist can wet the powder dispersed by the punched screen 7, so as to achieve the purpose of powder making. The present application realizes stable powder supply through the design of the powder bin. The powder supply amount is instantaneously and accurately realized through the valve gate type metering scale design. The powder enters the inverted cone disperser 6 for preliminary dispersion through the cylindrical disperser 5. The powder is further dispersed through the design of the air blower pipe inserted into the center of the cylindrical disperser 5 and the inverted cone disperser 6. The powder is further dispersed through the punched screen 7 at the connecting port of the inverted cone disperser 6 and the wet tower body 8, so as to achieve the effect of uniform dispersion. The above design arrangement can greatly improve the wet milling effect and yield, reduce unnecessary equipment investment, improve the powder yield of wet milling, and further avoid the process problems of building ceramics in the forming, drying and sintering process caused by wet granulation of dry powder making.

[0028] Further, the dispersion branch air pipe 3 is communicated with the dispersion air pipe 4, and the outlet end of the dispersion branch air pipe 3 is close to the inner wall of the cylindrical disperser 5, and the first diffusion air outlet 31 is arranged at the outlet of the dispersion branch air pipe 3.

[0029] By connecting the powder feeder 2 outlet with the cylindrical disperser 5, the air supply equipment 10 inputs the air into the dispersion branch air pipe 3 through the dispersion air pipe 4, and then blows out through the first diffusion air outlet 31, so as to solve the local blockage caused by the horizontal insertion of the dispersion air pipe 4, and make the internal powder uniformly diffuse for the first time; the first diffusion air outlet 31 is close to the inner wall of the cylindrical disperser 5, and can blow more powder in the cylindrical disperser 5.

[0030] Further, two first diffusion air outlets 31 are horizontally and symmetrically arranged at the outlet of the dispersion branch air pipe 3.

[0031] The arrangement of two first diffusion air outlets 31 can simultaneously blow more powder in the cylindrical disperser 5, so as to achieve better diffusion effect.

[0032] Further, the outlet end of the dispersion air pipe 4 is located at one third of the total height of the inverted cone disperser 6.

[0033] The specific position of the outlet end of the dispersion air pipe 4 is one third of the position from the larger opening end to the smaller opening end of the inverted cone disperser 6; under the influence of gravity and the air force in the cylindrical disperser 5, the powder entering the inverted cone disperser 6 is diffused for the second time before flowing into the wetting tower body 8, and specifically, the powder is diffused while flowing downward, and at this height, the powder can be fully diffused in a limited space during the second diffusion.

[0034] Further, the outlet end of the dispersion air pipe 4 is sealed, and a plurality of second diffusion air outlets 41 are arranged at the position close to the outlet end of the dispersion air pipe 4.

[0035] A plurality of second diffusion air outlets 41 are horizontally arranged on the ring surface close to the end of the dispersion air pipe 4, the number and outlet diameter of the second diffusion air outlets 41 are calculated according to the cross-sectional area of the dispersion air pipe 4, and the plurality of second diffusion air outlets 41 can fully diffuse the powder in the inverted cone disperser 6.

[0036] Further, the plurality of second diffusion air outlets 41 arranged at the position close to the outlet end of the dispersion air pipe 4 are arranged in 1 row, 2 rows, 3 rows, 4 rows or 5 rows by staggered drilling.

[0037] The staggered arrangement of the second diffusion air port 41 can make the powder at each angle in the inverted cone disperser 6 be diffused, and can achieve better uniform dispersion effect. According to the required concentration of the powder diffusion from low to high, the staggered hole arrangement of the second diffusion air port 41 is set to 1 row, 2 rows, 3 rows, 4 rows, 5 rows, so that the uniform dispersion effect of the powder can be achieved while unnecessary waste of wind is reduced.

[0038] Further, the inverted cone disperser 6 is in the shape of a trumpet mouth, and the end with a larger opening of the inverted cone disperser 6 is in communication with the wetting tower body 8.

[0039] The inverted cone disperser 6 is in the shape of a cone, which is composed of a large opening, a small opening and a slanting annular surface. In this embodiment, the top of the inverted cone disperser 6 is the small opening, the bottom is the large opening, and the middle is surrounded by the slanting annular surface. In this way, sufficient dispersion space can be provided for secondary dispersion. The large opening at the bottom is in communication with the wetting tower body 8, so that the dispersed powder can better enter the wetting tower body 8 for wetting.

[0040] Further, the diameter of the end with a larger opening of the inverted cone disperser 6 is two-thirds of the diameter of the top of the wetting tower.

[0041] The diameter of the large opening of the inverted cone disperser 6 is set to two-thirds of the diameter of the communication surface of the wetting tower, so that the powder can be dispersed in a large area after passing through the punched screen 7, which is conducive to the fine water mist produced by the water mist assembly 91 to uniformly wet the powder, thereby avoiding the process problems of forming, drying and sintering caused by wet particles in dry method powdering and granulation.

[0042] Further, the air supply equipment 10 extends horizontally from the air outlet to the cylindrical disperser 5 to directly connect the dispersion air pipe 4. The part of the dispersion air pipe 4 in the cylindrical disperser 5 is located between the top and the middle of the center of the cylindrical disperser 5, and the dispersion air pipe 4 extends vertically downward to the middle and lower part of the center of the inverted cone disperser 6.

[0043] The cylindrical disperser 5 and the inverted cone disperser 6 are both circular, and their centers can be connected to form a vertical straight line. The dispersion air pipe 4 is circular, and the center diameter of the dispersion air pipe 4 passes through the centers of the cylindrical disperser 5 and the inverted cone disperser 6 at the same time. In this way, the air volume of the air from the dispersion air pipe 4 on the same horizontal surface of the inner wall of the inverted cone disperser 6 is consistent, so that the powder is uniformly dispersed.

[0044] Further, the punched screen 7 is made of stainless steel.

[0045] The punched screen 7 is made of stainless steel, and the stainless steel punched screen 7 is sprayed with a Teflon coating, so that the powder will not accumulate on the stainless steel punched screen 7.

[0046] In the description of the utility model, need understanding is, the term "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the utility model, and not indicate or imply that the indicated device or element must have a particular orientation, construct and operate in a particular orientation, therefore can not be understood as limiting the utility model.

[0047] The above-described embodiments are only descriptions of the preferred modes of the utility model, and do not limit the scope of the utility model, and various modifications and improvements to the technical solutions of the utility model made by those skilled in the art without departing from the design spirit of the utility model should fall within the protection scope defined by the claims of the utility model.

Claims

1. A device for wetting and powdering building ceramics, characterized in that: The device includes a grinding chamber (1), the outlet of which is connected to a powder feeder (2), the outlet of which is connected to a cylindrical disperser (5), a dispersion duct (4) is provided inside the cylindrical disperser (5), an air supply device (10) is provided outside the cylindrical disperser (5), the air outlet of the air supply device (10) is connected to the dispersion duct (4), the bottom end of the cylindrical disperser (5) is connected to an inverted cone disperser (6), the air outlet of the dispersion duct (4) extends into the inverted cone disperser (6), the bottom end of the inverted cone disperser (6) is connected to a wetting tower (8), a perforated mesh (7) is provided at the connection between the inverted cone disperser (6) and the wetting tower (8), a water mist assembly (91) is provided inside the wetting tower (8), and several fine water mist spraying devices are connected to the bottom of the water mist assembly (91).

2. The building ceramic wetting and powder-making device according to claim 1, characterized in that: The dispersion duct (4) is connected to a dispersion branch duct (3), the outlet end of the dispersion branch duct (3) is close to the inner wall of the cylindrical disperser (5), and the outlet of the dispersion branch duct (3) is provided with a first diffusion vent (31).

3. The building ceramic wetting and powder-making device according to claim 2, characterized in that: The dispersed branch duct (3) has two first diffused air outlets (31) symmetrically opened in the horizontal direction at the air outlet.

4. The building ceramic wetting and powder-making device according to claim 1, characterized in that: The outlet end of the dispersion duct (4) is located at one-third of the total height of the inverted cone disperser (6).

5. The building ceramic wetting and powder-making device according to claim 4, characterized in that: The outlet end of the dispersion duct (4) is sealed, and several second dispersion vents (41) are opened on the dispersion duct (4) near the outlet end.

6. The building ceramic wetting and powder-making device according to claim 5, characterized in that: The dispersed air duct (4) is located near the end of the air outlet, and a number of second diffused air outlets (41) are arranged in a staggered manner with one, two, three, four or five rows of holes along the circumference.

7. The building ceramic wetting and powder-making device according to claim 1, characterized in that: The inverted cone disperser (6) is funnel-shaped, and the larger end of the inverted cone disperser (6) is connected to the wetting tower body (8).

8. The building ceramic wetting and powder-making device according to claim 7, characterized in that: The diameter of the larger end of the inverted cone disperser (6) is two-thirds of the diameter of the top of the wetting tower.

9. The building ceramic wetting and powder-making device according to claim 1, characterized in that: The air outlet of the air supply device (10) extends horizontally into the cylindrical disperser (5) and is directly connected to the dispersing duct (4). The dispersing duct (4) inside the cylindrical disperser (5) is located between the top and middle of the center of the cylindrical disperser (5). The dispersing duct (4) extends vertically downward to the lower middle part of the center of the inverted cone disperser (6).

10. The building ceramic wetting and powder-making device according to claim 1, characterized in that: The perforated mesh (7) is made of stainless steel.

Images