CN111059871A

CN111059871A - Drying chamber for preparing ceramic body

Info

Publication number: CN111059871A
Application number: CN201911344313.8A
Authority: CN
Inventors: 张晓兵; 张炎豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-04-24

Abstract

The invention discloses a drying chamber for preparing ceramic blanks, which comprises a blank drying chamber, wherein a group of slide rails are laid in the blank drying chamber on the ground in parallel along the length direction of the blank drying chamber, a movable placing rack for placing Jun ceramic blanks is arranged on the slide rails, small holes for allowing hot air to pass through are uniformly distributed on a placing plate of the movable placing rack, the blank drying chamber is provided with an inner wall and an outer wall, a jacket space for allowing smoke to pass through is arranged between the inner wall and the outer wall, a smoke inlet main pipe is arranged at the top of the outer wall, smoke exhaust pipes are correspondingly arranged at the lower sections of the two sides of the outer wall, a pit is arranged between the two slide rails, a hot air inlet pipe is arranged in the pit, a plurality of air dispersion holes are arranged at the air inlet end of the hot air inlet pipe along the length direction of the hot air inlet pipe, the device can adjust and control the air, the drying period of the green body can be shortened, and the like.

Description

Drying chamber for preparing ceramic body

Technical Field

The invention belongs to the technical field of ceramic preparation, and particularly relates to a drying chamber for preparing a ceramic blank.

Background

In the production process of ceramics, a ceramic body needs to be dried, the drying process is a process of dehydrating the formed body mainly by means of evaporation, and the drying purpose mainly comprises three aspects: 1. 2, glazing operation is carried out for improving the water absorption rate of the green body, 3, fuel consumption is reduced, and the sintering period is shortened. The drying process of the green body is divided into outer diffusion and inner diffusion, the outer diffusion refers to evaporation of the outer surface of the green body, the inner diffusion refers to moisture movement inside the green body after surface moisture evaporation is divided into wet conduction and heat and wet conduction, and the drying process mainly comprises a heating stage, a constant-speed drying stage, a speed-reducing drying stage and a balancing stage along with the drying time.

The green body drying mode comprises chamber drying, tunnel drying, chain drying, spray drying, heat pump drying and the like, the existing chamber drying is used for placing wet green bodies in a drying chamber provided with a green body frame and heating equipment for drying, compared with other drying modes, the drying mode has the advantages of small equipment investment, mild drying, different drying temperatures for the green bodies of different types can be adopted, but the heat efficiency is lower, the drying period is long, the drying effect is not easy to control, and therefore the drying mode adopting the drying chamber still has larger lifting and improving space.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a drying chamber for preparing ceramic blanks.

In order to achieve the purpose, the invention adopts the following technical scheme: a drying chamber for preparing ceramic blanks comprises a blank drying chamber, wherein a group of slide rails are laid in the blank drying chamber in parallel on the ground along the length direction of the blank drying chamber, a movable placing rack for placing Jun ceramic blanks is arranged on the slide rails, small holes for allowing hot air to pass through are uniformly distributed on placing plates of the movable placing rack, the blank drying chamber is provided with an inner wall and an outer wall, a jacket space for smoke to pass through is arranged between the inner wall and the outer wall, a smoke inlet main pipe is arranged at the top of the outer wall, smoke exhaust pipes are correspondingly arranged at the lower section positions on the two sides of the outer wall, a pit is arranged between the two slide rails, a hot air inlet pipe is arranged in the pit, a plurality of air diffusion holes are formed in the air inlet end of the hot air inlet pipe along the length direction, a partition plate is vertically arranged at the top of the inner wall so as to divide the top space in the inner wall into two parts, and arc, the outer side of the bottom of the inner wall is communicated with the inside of the drying chamber through a cooling gas exhaust pipe.

As a further improvement of the drying chamber for preparing the ceramic body, an opening and closing plate assembly is arranged at the pipe orifice of the cooling gas discharge pipe and is used for controlling the discharge amount of the cooling gas.

As a further improvement of this scheme a drying chamber for ceramic body preparation, the opening plate subassembly includes tip end cover board, opening plate and aperture regulation pole, aperture regulation pole and tip end cover board all set up the both ends position at the opening plate, the aperture regulation pole is articulated including on the wall, be provided with a plurality of draw-in grooves that are used for fixed opening plate along its length direction on the aperture regulation pole, the lower side of opening plate articulates in the slide rail outside, the side of tip end cover board is the triangle-shaped structure, after the hypotenuse contact of the medial surface of opening plate and tip end cover board, keep apart the inside independent space that is of body drying chamber.

As a further improvement of the drying chamber for preparing the ceramic body, a window plate is arranged at an opening of the pit.

As a further improvement of the drying chamber for preparing the ceramic body, the end of the smoke inlet main pipe is connected with a transverse pipe, a plurality of branch pipes are distributed on the transverse pipe along the length direction of the transverse pipe, and the branch pipes are distributed and communicated with the inside of the jacket space along the length direction of the top of the outer wall.

Advantageous effects

1. According to the invention, through the improvement of the structure, the drying chamber with the inner wall, the outer wall and the jacket space as main bodies is arranged, and through introducing high-temperature flue gas generated in the preparation process of Jun porcelain into the jacket space, the drying chamber can be fully insulated, so that the heat loss of hot air is greatly saved, and meanwhile, the discharged flue gas is changed into valuables.

2. In the invention, considering the uniformity and no dead angle of convection action in the drying chamber, a partition plate and a guide plate are particularly arranged at the top of the drying chamber, so that hot air rising from a pit is shunted to two sides and is discharged from a cooling gas discharge pipe. In this scheme, the hot-air in the drying chamber is at the in-process that rises, is guided to both sides by division board and guide plate, has formed two even gas circulation return circuits, can promote drying effect greatly to make it more even to place ceramic circumference drying on the board, reduced the risk that the body takes place the fracture.

3. According to the invention, considering that different requirements of drying temperature and drying speed are required for different types of Jun porcelain, the opening and closing plate assembly is particularly arranged on the cooling air exhaust pipeline, the discharge amount of cooling air can be controlled through the opening angle of the opening and closing plate, meanwhile, the opening size of the opening and closing plate is controlled through the matching of the opening adjusting rod, and particularly for some Jun porcelain blank drying processes needing periodic heating, the opening and closing plate needs to be temporarily closed to form a certain independent space and keep certain humidity during drying so as to balance the moisture in the blank, so that the occurrence of crack phenomenon caused by improper drying is avoided.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a view showing an internal structure of a drying chamber according to the present invention;

FIG. 2 is a schematic structural view of an opening and closing plate assembly according to the present invention;

the labels in the figure are: 1. the device comprises sliding rails, 2 parts of a movable placing frame, 3 parts of a green body drying chamber, 3-1 parts of an inner wall, 3-2 parts of an outer wall, 4 parts of a smoke inlet main pipe, 4-1 parts of a transverse pipe, 4-2 parts of a branch pipe, 5 parts of a smoke exhaust pipe, 6 parts of a hot air inlet pipe, 7 parts of a partition plate, 8 parts of a guide plate, 9 parts of a cooling air outlet pipe, 10 parts of an open-close plate assembly, 101 parts of end sealing plates, 102 parts of an open-close plate, 103 parts of an opening adjusting rod, 11 parts of a window plate.

Detailed Description

In order to make the technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

Example 1

As shown in the figure: the embodiment of the invention provides a drying chamber for preparing a ceramic body, which comprises a body drying chamber 3, wherein a group of slide rails 1 are parallelly paved on the ground in the body drying chamber 3 along the length direction of the body drying chamber, a movable placing rack 2 for placing Jun ceramic bodies is arranged on the slide rails 1, small holes for allowing hot air to penetrate through are uniformly distributed on placing plates of the movable placing rack 2, the body drying chamber 3 is provided with an inner wall 3-1 and an outer wall 3-2, a jacket space for allowing smoke to pass through is arranged between the inner wall 3-1 and the outer wall 3-2, a smoke inlet main pipe 4 is arranged at the top of the outer wall 3-2, smoke exhaust pipes 5 are correspondingly arranged at the lower sections of two sides of the outer wall 3-2, a pit is arranged between the two slide rails 1, and a window plate 11 is arranged at the opening of the pit. On the one hand to rising hot-air carry out homodisperse, can make hot-air evenly contact every position of pottery at the in-process that rises effectively for drying effect is better, and on the other hand promotes the security, guarantees to carry out the safety of operation when operating personnel transports the body. A hot air inlet pipe 6 is arranged in the pit, a plurality of air diffusing holes are formed in the air inlet end of the hot air inlet pipe 6 along the length direction of the hot air inlet pipe, a partition plate 7 is vertically arranged at the inner top of the inner wall 3-1 to divide the top space in the inner wall 3-1 into two parts, arc-shaped guide plates 8 are fixedly arranged on two sides of the partition plate 7, and the outer side of the bottom of the inner wall 3-1 is communicated with the inside of the drying chamber through a cooling air exhaust pipe 9. A partition plate 7 and a baffle plate 8 are provided at the top of the drying chamber, and the hot air rising from the pit is branched to both sides and discharged from a cooling gas discharge pipe 9. In this scheme, the hot-air in the drying chamber is at the in-process that rises, is directed to both sides by division board 7 and guide plate 8, has formed two even gas circulation return circuits, can promote drying effect greatly to make ceramic circumference on the rack dry more even, reduced the risk that the body took place the fracture.

In the scheme, the interior of the drying chamber is of a tunnel structure, the end part of a smoke inlet main pipe 4 is connected with a transverse pipe 4-1, a plurality of branch pipes 4-2 are distributed on the transverse pipe 4-1 along the length direction of the transverse pipe, and the branch pipes 4-2 are distributed along the length direction of the top of an outer wall 3-2 and communicated with the interior of a jacket space of the drying chamber. Therefore, all the positions of the jacket space of the whole green body drying chamber 3 are respectively communicated with the smoke inlet main pipe 4, so that the heat preservation effect is more uniform, and the heat preservation effect of all the positions in the drying chamber is consistent. In this scheme, advance the chimney house steward 4 and communicate with the chimney in the pottery burns till the equipment for the waste heat of discharge fume outside the recycle.

Example 2

The embodiment provides a drying chamber for preparing ceramic blanks, which comprises a blank drying chamber 3, wherein a group of slide rails 1 are laid on the ground in parallel along the length direction of the blank drying chamber 3, a movable placing rack 2 for placing Jun ceramic blanks is arranged on the slide rails 1, small holes for hot air to penetrate through are uniformly distributed on a placing plate of the movable placing rack 2, the blank drying chamber 3 is provided with an inner wall 3-1 and an outer wall 3-2, a jacket space for smoke to pass through is arranged between the inner wall 3-1 and the outer wall 3-2, a smoke inlet main pipe 4 is arranged at the top of the outer wall 3-2, smoke outlet pipes 5 are correspondingly arranged at the lower sections of the two sides of the outer wall 3-2, a pit is arranged between the two slide rails 1, a hot air inlet pipe 6 is arranged in the pit, and the air inlet end of the hot air inlet pipe 6 is provided with a plurality of air dispersion holes along the length direction, the inner top of the inner wall 3-1 is vertically provided with a partition plate 7 to divide the top space in the inner wall 3-1 into two parts, arc-shaped guide plates 8 are fixedly arranged on two sides of the partition plate 7, the guide plates 8 can be vertically changed according to requirements to meet convection effects required by different ceramic types, after the guide plates 8 are moved upwards and fixed, convection circulation space is increased, the stay time of hot air in a drying chamber is prolonged, and the drying device is suitable for drying large thick-wall blanks. The outside of the bottom of the inner wall 3-1 is communicated with the inside of the drying chamber through a cooling gas exhaust pipe 9. A window plate 11 is arranged at the opening of the pit. The window board 11 is for being provided with the grid of a plurality of bleeder vents, and on the one hand carries out homodisperse to rising hot-air, can make hot-air evenly contact every position of pottery at the in-process that rises effectively for drying effect is better, and on the other hand, promotes the security, guarantees to carry out the safety of operating when operating personnel transports the body. An opening plate assembly 10 is arranged at the nozzle of the cooling air outlet pipe 9, and the opening plate assembly 10 is used for controlling the discharge amount of the cooling air. Open close plate subassembly 10 includes tip end board 101, open close plate 102 and aperture regulation pole 103, aperture regulation pole 103 and tip end board 101 all set up the both ends position at open close plate 102, aperture regulation pole 103 articulates on interior wall 3-1, be provided with a plurality of draw-in grooves that are used for fixed open close plate on aperture regulation pole 103 along its length direction, open close plate 102's lower side articulates in the 1 outside of slide rail, the side of tip end board 101 is the triangle-shaped structure, after the medial surface of open close plate 102 and the bevel edge of tip end board 101 contact, with the inside independent space that keeps apart of body drying chamber 3. Can be through open angle of open plate 102, control the discharge amount of cooling gas, the opening size of open plate 102 is controlled through the cooperation of aperture adjusting lever 103 simultaneously, to the jun porcelain of different grade type, the requirement that needs drying temperature and drying rate is different, consequently, need adjust the discharge amount of cooling gas, carry out the jun porcelain body drying process of periodic heating to some needs, need temporarily close open plate 102, in order to form certain independent space and keep certain humidity in with the drying, with the inside moisture of balanced body, thereby avoid because of the drying is improper, the crackle phenomenon that leads to takes place.

In this embodiment, the time of hot air in the green body drying chamber 3 is adjusted by adjusting the up-down position of the guide plate 8 and the opening size of the opening plate 102, the air displacement per unit time is controlled by adjusting the up-down position of the guide plate 8 and the time of hot air in the green body drying chamber 3, and the opening size of the opening plate 102 is adjusted by clamping the opening plate 102 at different positions of the slot of the opening adjusting rod 103, so that the drying speed can be adjusted, when the green body is dried, the hot air with high temperature and low humidity can be used for drying small-sized thin-wall daily porcelain blanks, at this time, the height of the guide plate 8 needs to be reduced, the opening size of the opening plate 102 needs to be increased for adjustment, and when the temperature of the large-sized thick-wall blanks is increased by uniformly heating by using the low temperature and high humidity method, at this time, the height of the guide plate 8, meanwhile, a humidifying device can be additionally arranged in the drying chamber, and the air in the drying chamber needs to be humidified and maintained in the later stage of drying, so that the phenomenon that cracks appear in the blank body due to uneven shrinkage of the blank body inside and outside is avoided, and the yield is influenced.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. Drying chamber for ceramic body preparation, comprising a body drying chamber (3), characterized in that: a group of slide rails (1) are laid in parallel on the ground along the length direction in the blank drying chamber (3), a movable placing rack (2) for placing Jun porcelain blanks is arranged on each slide rail (1), small holes for allowing hot air to pass through are uniformly distributed on placing plates of the movable placing rack (2), the blank drying chamber (3) is provided with an inner wall (3-1) and an outer wall (3-2), a jacket space for allowing flue gas to pass through is arranged between the inner wall (3-1) and the outer wall (3-2), a flue gas inlet main pipe (4) is arranged at the top of the outer wall (3-2), smoke exhaust pipes (5) are correspondingly arranged at the lower sections of the two sides of the outer wall (3-2), a pit is arranged between the two slide rails (1), a hot air inlet pipe (6) is arranged in the pit, and a plurality of air dispersion holes are formed in the air inlet end of the hot air inlet pipe (6) along the length direction, a partition plate (7) is vertically arranged at the top of the inner wall (3-1) to divide the top space in the inner wall (3-1) into two parts, arc-shaped guide plates (8) are fixedly arranged at two sides of the partition plate (7), and the outer side of the bottom of the inner wall (3-1) is communicated with the inside of the drying chamber through a cooling air discharge pipe (9).

2. A drying chamber for ceramic body preparation according to claim 1, wherein: an opening and closing plate assembly (10) is arranged at the pipe orifice of the cooling gas discharge pipe (9), and the opening and closing plate assembly (10) is used for controlling the discharge amount of the cooling gas.

3. A drying chamber for ceramic body preparation according to claim 2, wherein: the opening and closing plate assembly (10) comprises an end sealing plate (101), an opening plate (102) and an opening adjusting rod (103), the opening adjusting rod (103) and the end sealing plate (101) are arranged at two end positions of the opening plate (102), the opening adjusting rod (103) is hinged to an inner wall (3-1), a plurality of clamping grooves used for fixing the opening plate are formed in the opening adjusting rod (103) along the length direction of the opening adjusting rod, the lower side edge of the opening plate (102) is hinged to the outer side of a sliding rail (1), the side face of the end sealing plate (101) is of a triangular structure, and after the inner side face of the opening plate (102) is in contact with the bevel edge of the end sealing plate (101), the interior of a green body drying chamber (3) is isolated into an independent space.

4. A drying chamber for ceramic body preparation according to claim 1, wherein: and a window plate (11) is arranged at the opening of the pit.

5. A drying chamber for ceramic body preparation according to claim 1, wherein: the end of the smoke inlet main pipe (4) is connected with a transverse pipe (4-1), a plurality of branch pipes (4-2) are distributed on the transverse pipe (4-1) along the length direction of the transverse pipe, and the branch pipes (4-2) are distributed along the length direction of the top of the outer wall (3-2) and communicated with the inside of the jacket space.