Tile forced cooling blowpipe structure

Abstract

The utility model discloses a ceramic tile forced cooling blowpipe structure which is applied to kiln main bodies, a plurality of kiln main bodies with long distances form a single kiln box, an air exhaust mechanism is arranged above the kiln main bodies, the ceramic tile forced cooling blowpipe structure further comprises an air cooling mechanism, a plurality of kiln boxes are connected to form a direct cooling section, and a plurality of kiln boxes are connected to form a tail cooling section. The air cooling mechanism comprises a direct cooling air pipe mechanism and a tail cooling air pipe mechanism, the direct cooling air pipe mechanism is arranged and acts on the direct cooling section, and the tail cooling air pipe mechanism is arranged and acts on the tail cooling section; main air pipes of the direct cooling air pipe mechanism and the tail cooling air pipe mechanism are communicated at the junction of the direct cooling section and the tail cooling section, and a first control valve is arranged at the communication position. According to the ceramic tile forced cooling blowpipe structure, when the yield is high, the air cooling mechanisms of the two sections are started at the same time, the temperature of green bricks is rapidly reduced to the room temperature, and when the yield is low, only one fan is started; or in the production process, when one fan is damaged, it can be ensured that the cooling procedure is not delayed through the communicated pipeline design.

Description

Technical Field

[0001] This utility model relates to the field of ceramic machinery technology, and in particular to a structure for a ceramic tile forced cooling air blowing pipe. Background Technology

[0002] In the production process of ceramic tile blanks, firing and cooling are two indispensable and important steps. Currently, the most common method of ceramic tile production is the roller kiln, a large-scale brick-making equipment that uses rollers to continuously fire and cool the blanks before they are finished. However, most roller kilns on the market cannot effectively reduce the temperature of the tiles exiting the kiln when production reaches a certain level. Their disadvantage is that the cooling air volume at the tail of the kiln is limited and cannot meet the cooling requirements of the blanks after production increases. The blanks need to be quickly cooled to room temperature after exiting the kiln to meet the requirements for shipment. If the temperature of the brick blanks is too high when they come out of the kiln, they are prone to cracking according to the principle of thermal expansion and contraction. To solve this problem, some production lines choose to extend the cooling line and increase the number of air-cooled units. However, extending the cooling line will increase manufacturing and site costs, which is not conducive to improving the company's profits and meeting environmental protection requirements. Increasing the number of air-cooled units can quickly obtain a large air volume to a certain extent, but when dealing with production reduction, it will add additional technical problems, especially how to coordinate multiple units, or how to meet the cooling demand when some units break down. These have become new technical problems. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a ceramic tile strong cooling air blowing pipe structure to solve the technical problems mentioned in the background art.

[0004] To solve the technical problem, this utility model adopts the following technical solution:

[0005] A ceramic tile forced cooling air duct structure is applied to the main body of a kiln. The inner side of the kiln body is provided with a roller conveyor mechanism. Several kiln bodies with long distances are arranged to form a single kiln box. An exhaust mechanism is provided above the kiln body. It also includes an air cooling mechanism. Several kiln boxes are connected to form a direct cooling section and several kiln boxes are connected to form a tail cooling section. The air cooling mechanism includes a direct cooling air duct mechanism and a tail cooling air duct mechanism. The direct cooling air duct mechanism is set and acts on the direct cooling section. The tail cooling air duct mechanism is set and acts on the tail cooling section. The main air ducts of the direct cooling air duct mechanism and the tail cooling air duct mechanism are connected at the junction of the direct cooling section and the tail cooling section, and a first control valve is provided at the junction.

[0006] Specifically, the direct cooling duct mechanism includes a direct cooling fan, a main direct cooling duct, and a fine direct cooling duct. The direct cooling fan is located above the kiln body and is connected to the fine direct cooling duct located above and below the roller conveyor mechanism in the direct cooling section via the main direct cooling duct. The tail cooling duct mechanism includes a tail cooling fan, a main tail cooling duct, and a fine tail cooling duct. The tail cooling fan is located above the kiln body and is connected to the fine tail cooling duct located above and below the roller conveyor mechanism in the tail cooling section via the main tail cooling duct. Both the direct cooling duct and the tail cooling duct are distributed at the upper and lower ends of the roller conveyor and each has an air outlet that is aligned with the brick blanks on the roller conveyor mechanism.

[0007] Specifically, the direct cooling fine air ducts are grouped into sets of 3-5 ducts to form a direct cooling air duct group. The direct cooling air duct group includes an upper direct cooling air duct group located above the roller conveyor and a lower direct cooling air duct group located below the roller conveyor. The tail cooling fine air ducts are grouped into sets of 3-5 ducts to form a tail cooling air duct group. The tail cooling air duct group includes an upper tail cooling air duct group located above the roller conveyor and a lower tail cooling air duct group located below the roller conveyor. The upper direct cooling air duct group and the upper tail cooling air duct group are both located in the front half of the kiln box, and the lower direct cooling air duct group and the lower tail cooling air duct group are both located in the rear half of the kiln box.

[0008] Specifically, the exhaust mechanism includes an exhaust fan, a main exhaust duct, an air hood, and a fine exhaust duct. The exhaust fan is located above the kiln body and extends upwards through the main exhaust duct. The main exhaust duct is connected to a fine exhaust duct at the rear half of each kiln box. An air hood is also added to the top of the kiln box. The fine exhaust duct passes through the air hood and enters the rear half of the kiln box and above the roller conveyor mechanism.

[0009] Specifically, both the direct cooling main air duct and the tail cooling main air duct include a main upper air duct and a main lower air duct, which are connected by a main vertical air duct, and a second control valve is provided on the main vertical air duct.

[0010] Specifically, the roller conveyor mechanism consists of several individual rollers arranged in an array on the kiln body and a drive mechanism that drives the roller conveyor to rotate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This utility model addresses the aforementioned technical problems by proposing a novel structure for a powerful cooling air duct for ceramic tiles. It primarily involves dividing the kiln body of the air-cooled production line into a direct cooling section and a tail-cooling section, each section consisting of several kiln boxes. A direct cooling air duct mechanism is installed on the direct cooling section, and a tail-cooling air duct mechanism is installed on the tail-cooling section. The main air ducts of the two cooling mechanisms are connected at their junction and controlled by a first control valve. Each air duct mechanism's fine air ducts (direct cooling fine air ducts and tail-cooling fine air ducts) directly blow air onto the upper and lower ends of the ceramic tiles on the roller conveyor, achieving rapid cooling. More importantly, during high-volume production, the cooling mechanisms of both sections can be activated simultaneously, rapidly reducing the temperature of the ceramic tiles to room temperature to meet shipping requirements. During low-volume production, only one fan needs to be operated; or, if one fan fails during production, the interconnected piping design ensures that the cooling process is not delayed. Furthermore, this invention cleverly utilizes the front and rear structures of the kiln box. The direct cooling fine air group on the roller conveyor in the direct cooling air duct assembly is positioned in the front half of the kiln box to achieve downward airflow. Half of the direct cooling fine air group on the roller conveyor is positioned in the rear half of the kiln box, and the other half in the front half, to achieve upward airflow. This creates a circulation of hot and cold air between the two fine air groups. Finally, the hot air is exhausted by the exhaust mechanism, and the hot air from the previous box does not flow into the next box, ensuring that the direction of the brick blank is opposite to the direction of the exhaust air, resulting in higher cooling efficiency. Attached Figure Description

[0013] Figure 1 This is one of the front views of the overall structure of this utility model patent (the arrow indicates the direction of the brick's movement);

[0014] Figure 2 This is the second front view of the overall structure of this utility model patent (the arrow indicates the direction of the brick's movement);

[0015] Figure 3 : This is a top view of the overall structure of this utility model patent;

[0016] Figure 4 :for Figure 1 Sectional view along the AA direction;

[0017] Figure 5 :for Figure 2 The diagram shows the structure of a single kiln box and the airflow heat exchange diagram (the bold black part indicates the airflow direction);

[0018] Figure 6 :for Figure 2 The diagram shows the structure of a single kiln box (explaining the air cooling direction and the front and rear halves of the box).

[0019] Figure 7 This is a schematic diagram of the exhaust mechanism in this utility model patent.

[0020] Figure 8 :for Figure 7 Enlarged view of segment A marked in the middle;

[0021] In the diagram: Kiln body 100, roller conveyor mechanism 200, kiln box 1, exhaust mechanism 300, air cooling mechanism 400, direct cooling section 40A, tail cooling section 40B, direct cooling duct mechanism 410, tail cooling duct mechanism 420, first control valve 401, direct cooling fan 411, direct cooling main duct 412, direct cooling fine duct 413, tail cooling fan 421, tail cooling main duct 422, tail cooling fine duct 423, air outlet 403, brick blank 10A, direct cooling air... Pipe assembly 4130, roller conveyor upper direct cooling air pipe assembly 4130a, roller conveyor lower direct cooling air pipe assembly 4130b, tail cooling air pipe assembly 4230, roller conveyor upper tail cooling air pipe assembly 4230a, roller conveyor lower tail cooling air pipe assembly 4230b, exhaust fan 31, main exhaust air pipe 32, air hood 33, fine exhaust air pipe 34, main upper air pipe 4101, main lower air pipe 4102, main vertical air pipe connection 4103, second control valve 402, single roller 201, drive mechanism 202. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] refer to Figures 1 to 8 :

[0024] First refer to Figures 1-4This embodiment discloses a ceramic tile forced cooling air duct structure, mainly used in the firing and cooling process of brick blanks 10A. It solves the technical problems of traditional kiln firing and cooling processes being unable to achieve rapid and strong cooling, and the inability to allocate air cooling when production increases or decreases. This ceramic tile forced cooling air duct structure is applied to the kiln body 100. The inner side of the kiln body 100 is provided with a roller conveyor mechanism 200. The roller conveyor mechanism 200 mainly consists of individual rollers 201 laid flat on the kiln body 100. The individual rollers 201 are driven by a motor to rotate, thereby driving the brick blanks 10A passing over the upper end of the individual rollers 201 forward. Here, to facilitate the division of the large-length kiln body 100 into several smaller units for pipe opening and operation, several long kiln bodies are... A single kiln box 1 is composed of 100 units. For example, a kiln body 100 can be divided into 200 kiln boxes 1, or 200 kiln boxes 1 can be used to form a complete kiln body 100 production line. Such a large-scale equipment can significantly increase the output of ceramic tiles. In order to remove the heat emitted by the ceramic tiles, an exhaust system 300 is provided above the kiln body 100. In order to achieve rapid direct cooling of the brick blank 10A, a new type of air-cooling system 400 is also provided. First, in order to divide the functions of this air-cooling system 400, several kiln boxes 1 are connected to form a direct cooling section 40A, and several kiln boxes 1 are connected to form a tail cooling section 40B. The direct cooling section 40A is responsible for strong cooling of the brick blank 10A, and the tail cooling section 40B is responsible for air cooling to finish. Mechanism 400 includes a direct cooling duct mechanism 410 and a tail cooling duct mechanism 420. The direct cooling duct mechanism 410 is located and operates in the direct cooling section 40A, and the tail cooling duct mechanism 420 is located and operates in the tail cooling section 40B. The main air ducts of the direct cooling duct mechanism 410 and the tail cooling duct mechanism 420 are connected at the junction of the direct cooling section 40A and the tail cooling section 40B, and a first control valve 401 is provided at this junction. Through the first control valve 401, the direct cooling duct mechanism 410 and the tail cooling duct mechanism 420 can be connected together or isolated. Mode 1: The first control valve 401 is closed. At this time, the direct cooling section 40A and the tail cooling section 40B each cool their respective kiln box 1. The direct cooling section 40A is responsible for rapidly cooling the brick blank 10A to quickly raise its temperature. As the temperature approaches room temperature, the tail cooling section 40B is responsible for the final cooling of the brick blank 10A, stabilizing its temperature at room temperature. This ensures that the brick blank 10A is shipped close to room temperature, reducing the likelihood of cracking. In mode two, the first control valve 401 opens, connecting the direct cooling section 40A and the tail cooling section 40B. The airflow from both mechanisms is interconnected, resulting in similar air pressures in both sections and maximizing their effectiveness. Therefore, in mode two, the power required to start the fans in both mechanisms is reduced, and the brick blank 10A cools more uniformly. In contrast, in mode one, the direct cooling duct mechanism 410, being a forced cooling system, requires a larger main fan, while the tail cooling duct mechanism 420, being a tail cooling system, requires a smaller main fan.Different types, thicknesses, and textures of brick blanks 10A can be standardized to determine the most suitable air-cooling mode for each brick blank 10A. Alternatively, the first control valve 401 can be partially opened to allocate a portion of the airflow from the direct-cooling duct mechanism 410 to the tail-cooling duct mechanism 420; the specific configuration can be adjusted according to actual needs.

[0025] In a specific embodiment, the direct cooling duct mechanism 410 includes a direct cooling fan 411, a direct cooling main duct 412, and a direct cooling fine duct 413. The direct cooling fan 411 is positioned above the kiln body 100 and connected to the direct cooling fine duct 413 positioned above and below the roller conveyor mechanism 200 in the direct cooling section 40A via the direct cooling main duct 412. The tail cooling duct mechanism 420 includes a tail cooling fan 421, a tail cooling main duct 422, and a tail cooling fine duct 423. The tail cooling fan 421 is positioned above the kiln body 100 and connected to the tail cooling fine duct 423 positioned above and below the roller conveyor mechanism 200 in the tail cooling section 40B via the tail cooling main duct 422. The direct cooling fine duct 413 and the tail cooling fine duct 423 are evenly distributed. The brick blanks 10A on the roller conveyor are arranged at both ends of the roller conveyor and are equipped with air outlets 403. Specifically, the direct cooling fine air pipes 413 and the tail cooling fine air pipes 423 are equipped with air outlets 403 at the positions facing the brick blanks 10A or the roller conveyor mechanism 200. The air outlets 403 are arranged horizontally or perpendicular to the direction of movement of the brick blanks 10A. With this arrangement, when the brick blanks 10A are transported by the roller conveyor mechanism 200, the cold air forms an air curtain or air curtain structure. On the one hand, it can quickly blow directly onto the brick blanks 10A to cool them down. On the other hand, it can prevent the hot air in the firing section from flowing into the cooling section (including the direct cooling section 40A and the tail cooling section 40B). It can also prevent the hot air flow from the previous kiln box 1 from entering the next kiln box 1.

[0026] Specifically, to achieve the maximum cooling effect in the direct-blowing mode of this air-cooled structure, the direct-cooling fine air ducts 413 are grouped into sets of 3-5 to form a direct-cooling air duct group 4130. The direct-cooling air duct group 4130 includes an upper roller direct-cooling air duct group 4130a located above the roller conveyor and a lower roller direct-cooling air duct group 4130b located below the roller conveyor. Similarly, the tail-cooling fine air ducts 423 are grouped into sets of 3-5 to form a tail-cooling air duct group 4230. The tail-cooling air duct group 423 includes an upper roller tail-cooling air duct group 423 located above the roller conveyor. 0a and the roller conveyor tail cooling air duct group 4230b located below the roller conveyor. Specifically, the roller conveyor direct cooling air duct group 4130a and the roller conveyor tail cooling air duct group 4230a are both located in the front half of the kiln box 1. The roller conveyor direct cooling air duct group 4130b and the roller conveyor tail cooling air duct group 4230b are each half located in the front half of the kiln box 1 and half located in the rear half of the kiln box 1. This arrangement cleverly utilizes the front and rear structure of the kiln box 1. The roller conveyor direct cooling air duct group 4130a and the roller conveyor tail cooling air duct group 4230a are both located in the front half of the box (e.g., Figure 5 and Figure 6 As shown, the front half of the box is located on the right side of the kiln box 1, and the rear half is located on the left side of the kiln box 1, blowing air downwards. The direct cooling air duct group 4130b and the tail cooling air duct group 4230b under the roller conveyor are each half located in the front half of the box and half located in the rear half of the box. The air blown upwards by the air duct group located in the front half of the box is sucked away by the fine exhaust air duct 34 of the previous box, while the air blown upwards by the air duct group located in the rear half of the box is sucked away by the fine exhaust air duct 34 of this box. At the same time, the fine exhaust air duct 34 of this box also sucks away the air blown by the fine exhaust air duct 34 of the rear half of the next box, thus forming a thermal cycle. Only part of the air from the next box (lower temperature) is blown to the previous box and sucked away by the air hood 33 of the previous box. There is no hot air from the previous box blowing to the next box. Therefore, the airflow direction is opposite to the forward direction of the brick blank 10A.

[0027] Specifically, refer to Figure 7 and Figure 8 The exhaust system 300 includes an exhaust fan 31, a main exhaust duct 32, a hood 33, and a fine exhaust duct 34. The exhaust fan 31 is located above the kiln body 100 and extends upwards through the main exhaust duct 32. The main exhaust duct 32 is connected to a fine exhaust duct 34 at the rear half of each kiln box 1. A hood 33 is also added above the kiln box 1. The fine exhaust duct 34 passes through the hood 33 and enters the rear half of the kiln box 1 and above the roller conveyor mechanism 200. This facilitates the circulation of cooling air in each kiln box 1. Finally, the air is absorbed by the fine exhaust duct 34 and discharged to the outside through the main exhaust duct 32. The outside here refers to the roof of the entire equipment room or the exhaust gas is discharged into the waste gas treatment room for harmless treatment before being discharged. In order to increase the exhaust efficiency and assist in cooling, a large exhaust fan is usually equipped to extract the air.

[0028] Specifically, the direct cooling main air duct 412 and the tail cooling main air duct 422 both include a main upper air duct 4101 and a main lower air duct 4102. The main upper air duct 4101 and the main lower air duct 4102 are connected by a main vertical air duct 4103. A second control valve 402 is provided on the main vertical air duct. The second control valve 402 can be used to control the cooling air volume between the direct cooling air duct group 4130a on the roller conveyor and the direct cooling air duct group 4130b on the roller conveyor. This is beneficial for adjusting the different kiln temperatures of the front and back sides of the brick blank 10A, so that both sides of the brick blank 10A can reach room temperature when shipped.

[0029] Specifically, the roller conveyor mechanism 200 comprises a plurality of individual rollers 201 arranged in an array on the kiln body 100 and a drive mechanism 202 for driving the roller conveyor to rotate (existing technology). The drive mechanism 202 is usually composed of a motor, which drives the individual rollers 201 to rotate through gears. In some embodiments, the gear at the output end of the motor meshes with the gear at the end of the individual roller 201. With this configuration, a single motor can control the rotation of a plurality of individual rollers 201.

[0030] The working principle of this utility model patent:

[0031] 1. Direction of brick movement: The direction of brick movement is from... Figure 1 As indicated by the arrow, the movement proceeds from right to left, first entering the direct cooling section 40A and then the tail cooling section 40B. The mode between the two sections can be freely switched, either using series air cooling or parallel individual air cooling. The two sections are controlled by the first control valve 401.

[0032] 2. Airflow direction in air-cooled systems: The airflow direction in air-cooled systems is between individual units, such as... Figure 5 and Figure 6 As described, in the direction of hot airflow between individual kiln boxes 1, the suction direction of the exhaust mechanism 300 is from left to right, which is opposite to the direction of the brick blank 10A. Furthermore, in each individual kiln box 1, the fine exhaust pipe 34 is installed in the rear half (i.e., the left side) of the box. The cold air pipe group on the roller conveyor (including the upper direct cold air pipe group 4130a and the upper tail cold air pipe group 4230a) in the air-cooled pipe group blows downwards, while the lower cold air pipe group on the roller conveyor (including the lower direct cold air pipe group 4130b and the lower tail cold air pipe group 4230b) blows upwards. Half of the lower cold air pipe group is located in the front half of the box, and half is located in the rear half. Therefore, the airflow direction here is... For this box, the air blown downwards by the cold air duct group on the roller conveyor of this box and the cold air duct group under the roller conveyor in the first half of the box are drawn away by the fine exhaust duct 34 of the previous box after heat exchange with the brick blank 10A. Meanwhile, the air blown upwards by the cold air duct group in the second half of the roller conveyor of this box is drawn away by the fine exhaust duct 34 of this box. At the same time, the fine exhaust duct 34 of this box also draws away the hot air blown from the cold air duct group on the roller conveyor of the next box and the cold air duct group under the roller conveyor in the first half of the box. With this setting, the hot air of the brick blank 10A in the previous box, which has a higher temperature, will not flow into the box where the next brick blank 10A with a lower temperature is located. With this design, the temperature of the brick blank 10A will decrease gradually as it moves from right to left.

[0033] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A tile strong cold blow pipe structure applied to a kiln main body, the inner side of the kiln main body is provided with a roller mechanism, a plurality of long distance kiln main bodies constitute a single kiln box, the upper side of the kiln main body is provided with an exhaust mechanism, characterized in that: Further comprising a wind cooling mechanism, several kiln boxes are connected into a straight cooling section and several kiln boxes are connected into a tail cooling section, the wind cooling mechanism comprises a straight cooling wind pipe mechanism and a tail cooling wind pipe mechanism, the straight cooling wind pipe mechanism is arranged and acts on the straight cooling section, the tail cooling wind pipe mechanism is arranged and acts on the tail cooling section, the main wind pipe of the straight cooling wind pipe mechanism and the tail cooling wind pipe mechanism is communicated at the junction of the straight cooling section and the tail cooling section and is provided with a first control valve at the communication position.

2. A tile hardening blow pipe structure according to claim 1, characterized in that: The straight cooling wind pipe mechanism comprises a straight cooling fan, a straight cooling main wind pipe and a straight cooling fine wind pipe, the straight cooling fan is arranged above the kiln body and is communicated with the straight cooling fine wind pipe arranged above and below the roller bed mechanism of the straight cooling section through the straight cooling main wind pipe, the tail cooling wind pipe mechanism comprises a tail cooling fan, a tail cooling main wind pipe and a tail cooling fine wind pipe, the tail cooling fan is arranged above the kiln body and is communicated with the tail cooling fine wind pipe arranged above and below the roller bed mechanism of the tail cooling section through the tail cooling main wind pipe, the straight cooling fine wind pipe and the tail cooling fine wind pipe are both distributed to the upper and lower ends of the roller bed and are both provided with air outlet holes aligned with the bricks on the roller bed mechanism.

3. A tile hardening blow pipe structure as claimed in claim 2, characterized in that: The straight cooling fine wind pipe is formed into a straight cooling wind pipe group by 3-5 roots as a group, the straight cooling wind pipe group comprises a roller bed upper straight cooling wind pipe group located above the roller bed and a roller bed lower straight cooling wind pipe group located below the roller bed, the tail cooling fine wind pipe is formed into a tail cooling wind pipe group by 3-5 roots as a group, the tail cooling wind pipe group comprises a roller bed upper tail cooling wind pipe group located above the roller bed and a roller bed lower tail cooling wind pipe group located below the roller bed, wherein the roller bed upper straight cooling wind pipe group and the roller bed upper tail cooling wind pipe group are both located in the front half of the kiln box, and the roller bed lower straight cooling wind pipe group and the roller bed lower tail cooling wind pipe group are both located in the rear half of the kiln box.

4. A tile hardening blow pipe structure as claimed in claim 1, characterized in that: The exhaust mechanism comprises an exhaust fan, a main exhaust pipe, a wind cover and a fine exhaust pipe, wherein the exhaust fan is located above the kiln body and extends above the entire kiln body through the main exhaust pipe, the main exhaust pipe is connected with the fine exhaust pipe at the position corresponding to the rear half of each kiln box body, the wind cover is further arranged above the kiln box body, and the fine exhaust pipe passes through the wind cover and enters the rear half of the kiln box and the upper part of the roller bed mechanism.

5. A tile hardening lances structure as claimed in claim 2, wherein: The straight cooling main wind pipe and the tail cooling main wind pipe further comprise a main upper wind pipe and a main lower wind pipe, the main upper wind pipe and the main lower wind pipe are communicated through a main vertical wind pipe, and the main vertical wind pipe is provided with a second control valve.

6. A tile hardening lances structure as claimed in claim 1, characterized in that: The roller bed mechanism comprises a plurality of single rollers arrayed on the kiln body and a driving mechanism driving the roller bed to rotate.

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