Ceramic roller kiln waste heat utilization device

Abstract

This utility model discloses a waste heat recovery device for ceramic roller kilns, relating to the field of ceramic roller kiln technology. Hot air contains a large amount of dust particles, which can easily cause scale buildup and blockage on the inner walls of pipes during long-term operation, leading to a decrease in waste heat transport efficiency and affecting the practicality of the device. This utility model is applied to the main body of a ceramic roller kiln and includes a waste heat recovery mechanism located on one side of the main body of the ceramic roller kiln. By incorporating a waste heat recovery mechanism, an inspection cover, and a filter frame, the hot air intake is filtered through a first and second filter layer, removing impurities and minimizing their accumulation inside the air duct. Subsequently, by pulling the adjusting block, the retaining block can be moved out of the recovery box, facilitating the opening of the inspection cover and allowing the filter frame to be removed for cleaning of the internal filter layers, thus improving the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of ceramic roller kiln technology, specifically to a waste heat utilization device for ceramic roller kilns. Background Technology

[0002] Ceramic roller kilns are mainly used for the production of ceramic building materials such as ceramic tiles. Roller kilns are continuous firing kilns, tunnel kilns that use rotating rollers as the carriers of ceramic blanks. Ceramic products are placed on many closely spaced horizontal refractory rollers, and the rotation of the rollers transports the ceramics from the kiln head to the kiln tail, hence the name roller kiln. It can meet the firing requirements of large quantities of daily-use ceramics. In order to facilitate the recovery and reuse of heat inside the ceramic roller kiln, a waste heat utilization device for ceramic roller kilns is needed.

[0003] Regarding the aforementioned technologies, the applicant believes that when a waste heat utilization device for a ceramic roller kiln is in operation, a fan is used to extract hot air from the rear of the ceramic roller kiln and send it to the front of the ceramic roller kiln. This facilitates the pre-processing of items in the front of the ceramic roller kiln. However, this hot air contains a large number of dust particles, which can easily cause scale buildup and blockage on the inner wall of the pipes during long-term operation, leading to a decrease in waste heat transfer efficiency and thus affecting the practicality of the device. Utility Model Content

[0004] The purpose of this utility model is to provide a waste heat utilization device for ceramic roller kilns, in order to solve the problem mentioned in the background art that the hot air contains a large number of dust particles, which can easily cause scale buildup and blockage on the inner wall of the pipes during long-term operation, resulting in a decrease in waste heat transport efficiency and thus affecting the practicality of the device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waste heat recovery device for a ceramic roller kiln, applied to the main body of the ceramic roller kiln; including a waste heat recovery mechanism, the waste heat recovery mechanism being disposed on one side of the main body of the ceramic roller kiln, the waste heat recovery mechanism including a recovery box disposed on one side of the main body of the ceramic roller kiln, a support plate being disposed at the top of the recovery box, a filter frame being disposed through the top of the support plate, a first filter layer being disposed at one end of the filter frame, a second filter layer being disposed at the end of the filter frame away from the first filter layer, a maintenance cover being hinged to the top of the recovery box, a limit seat being disposed at the bottom of the maintenance cover, a spring being disposed inside the maintenance cover, an adjusting block being disposed at the end of the spring away from the limit seat, and a locking block being disposed at the end of the adjusting block away from the spring.

[0006] By adopting the above technical solution, the inhaled hot air is filtered through the first and second filter layers, which can remove impurities from the hot air and minimize the accumulation of impurities inside the air duct. Then, by pulling the adjustment block, the locking block can be moved out of the recovery box, which makes it easy to open the inspection cover and remove the filter frame to clean the internal filter layer, thus improving the practicality of the device.

[0007] Preferably, the middle part of the ceramic roller kiln body is set as a high-temperature heating zone, the end of the ceramic roller kiln body near the recovery box is set as a cooling zone, and the end of the ceramic roller kiln body away from the cooling zone is set as a preheating zone.

[0008] By adopting the above technical solution, ceramics can be processed conveniently.

[0009] Preferably, conveying rollers are uniformly arranged in the middle part of the main body of the ceramic roller kiln, and silicon carbide rods are uniformly arranged inside the high-temperature heating zone.

[0010] By adopting the above technical solution, ceramics can be heated using silicon carbide rods.

[0011] Preferably, a viewing window is provided on one side of the recycling bin, and a handle is provided on the top of the inspection cover.

[0012] By adopting the above technical solution, staff can easily observe the inside of the recycling bin.

[0013] Preferably, a fan body is provided at the bottom of the inside of the recycling bin, and the input end of the fan body is inserted into the interior of the cooling zone.

[0014] By adopting the above technical solution, the hot air inside the cooling zone can be drawn into the recovery box by the operation of the main fan body.

[0015] Preferably, an exhaust box is provided at the bottom of the preheating zone, and exhaust vents are evenly distributed at the top of the exhaust box.

[0016] By adopting the above technical solution, hot air can be discharged through the exhaust port at the top of the exhaust box, which can preheat the ceramics inside the preheating zone and improve the ceramic processing effect.

[0017] Preferably, an air supply pipe is installed through the inside of the recycling bin, and the end of the air supply pipe away from the recycling bin is inserted into the inside of the exhaust box.

[0018] By adopting the above technical solution, the filtered hot air is delivered to the interior of the exhaust box through the air duct.

[0019] Preferably, the air duct is provided with a heat insulation sleeve, which is made of aluminum silicate fiber felt.

[0020] By adopting the above technical solution, it is possible to easily keep the hot air transported inside the air duct warm and reduce the heat loss of the hot air inside the air duct.

[0021] Compared with the prior art, the beneficial effects of this utility model are: The system is equipped with a ceramic roller kiln body, a waste heat recovery mechanism, an inspection cover, and a filter frame. The hot air drawn in is filtered through the first and second filter layers to remove impurities and minimize their accumulation inside the air duct. Then, by pulling the adjusting block, the locking block can be moved out of the recovery box, making it easy to open the inspection cover and remove the filter frame to clean the internal filter layer, thus improving the practicality of the device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the overall front view of the present invention; Figure 3 This is a three-dimensional structural diagram of the recycling bin of this utility model; Figure 4 This is a schematic diagram of the internal structure of the recycling bin of this utility model; Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0023] In the diagram: 1. Main body of ceramic roller kiln; 2. Waste heat recovery mechanism; 201. Insulation sleeve; 202. Recovery box; 203. Exhaust box; 204. Exhaust outlet; 205. Viewing window; 206. Handle; 207. Inspection cover; 208. Filter frame; 209. Air duct; 210. Support plate; 211. Main body of fan; 212. First filter layer; 213. Second filter layer; 214. Limiting seat; 215. Spring; 216. Locking block; 217. Adjusting block; 3. Conveying roller; 4. Preheating zone; 5. Silicon carbide rod; 6. High-temperature heating zone; 7. Cooling zone. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figures 1 to 5This embodiment provides a technical solution: a waste heat recovery device for a ceramic roller kiln, applied to the main body 1 of the ceramic roller kiln; including a waste heat recovery mechanism 2, which is disposed on one side of the main body 1 of the ceramic roller kiln. The waste heat recovery mechanism 2 includes a recovery box 202 fixedly connected to one side of the main body 1 of the ceramic roller kiln. A support plate 210 is provided above the inside of the recovery box 202. The support plate 210 and the recovery box 202 are connected by fixing bolts. A filter frame 208 is provided through the top of the support plate 210. The filter frame 208 can provide load-bearing capacity. A first filter layer 212 is provided at one end of the inside of the filter frame 208. The first filter layer 212 is made of metal wire mesh. A second filter layer 213 is provided at the end of the inside of the filter frame 208 away from the first filter layer 212. The second filter layer 213 is made of glass fiber. By using the two-stage filtration of the first filter layer 212 and the second filter layer 213, dust particles and fibrous impurities in the hot air can be effectively intercepted. A maintenance cover 207 is hinged to the top of the recycling bin 202. A sealing gasket is provided on the inner surface of the maintenance cover 207 to improve the sealing performance of the recycling bin 202 and minimize gas leakage. A limit seat 214 is provided at the bottom of the maintenance cover 207. A spring 215 is installed inside the maintenance cover 207. An adjusting block 217 is provided at the end of the spring 215 away from the limit seat 214, and a locking block 216 is provided at the end of the adjusting block 217 away from the spring 215. (See attached...) Figure 5 As shown, when no force is applied, the elastic potential energy of the spring 215 can be used to push the block 216 into the limiting hole inside the recycling bin 202, which can conveniently limit the maintenance cover 207. A viewing window 205 is provided on one side of the recycling bin 202, and a handle 206 is provided on the top of the maintenance cover 207.

[0026] The effect achieved by the entire embodiment is that the hot air drawn into the kiln is filtered through two stages, namely the first filter layer 212 and the second filter layer 213, which can effectively intercept dust particles and fibrous impurities in the hot air and minimize the accumulation of impurities inside the air duct 209.

[0027] Example 2: The middle part of the ceramic roller kiln body 1 is set as a high-temperature heating zone 6. The end of the ceramic roller kiln body 1 near the recovery box 202 is set as a cooling zone 7. The end of the ceramic roller kiln body 1 away from the cooling zone 7 is set as a preheating zone 4. Conveying rollers 3 are evenly arranged in the middle part of the ceramic roller kiln body 1. Silicon carbide rods 5 are evenly arranged inside the high-temperature heating zone 6.

[0028] The effect achieved by the entire second embodiment is as follows: the ceramic raw material is moved into the interior of the ceramic roller kiln body 1 by the conveying roller 3, and the ceramic can be heated by the silicon carbide rod 5 inside the high temperature heating zone 6. After heating, the ceramic is conveyed into the interior of the cooling zone 7.

[0029] Example 3: A fan body 211 is installed at the bottom of the inside of the recycling box 202. The basic working principle of the fan body 211 is that the impeller is driven by a motor to rotate at high speed, and centrifugal force is used to generate directional airflow: when the impeller rotates, the blades push the gas to move radially or axially, forming a negative pressure area at the air inlet, which draws the hot air in the cooling zone 7 into the fan, and after being accelerated by the impeller, it is discharged from the air outlet, realizing efficient suction and exhaust of hot air. When selecting, the appropriate model should be selected according to actual needs. The components required in the fan body 211 are all existing technologies and will not be described in detail below.

[0030] The input end of the fan body 211 is inserted into the interior of the cooling zone 7. An exhaust box 203 is provided at the bottom of the preheating zone 4. Exhaust ports 204 are evenly distributed at the top of the exhaust box 203. An air supply pipe 209 is installed through the interior of the recovery box 202. The end of the air supply pipe 209 away from the recovery box 202 is inserted into the interior of the exhaust box 203. A heat insulation sleeve 201 is provided on the outside of the air supply pipe 209. The heat insulation sleeve 201 is made of aluminum silicate fiber felt.

[0031] The effect achieved by the entire embodiment 3 is as follows: the filtered hot air is delivered to the interior of the exhaust box 203 through the air duct 209, and then discharged through the exhaust port 204 at the top of the exhaust box 203, which can preheat the ceramic inside the preheating zone 4 and improve the processing effect of the ceramic.

[0032] Working principle: The ceramic raw material is moved into the interior of the ceramic roller kiln body 1 by the conveying roller 3. The ceramic can be heated by the silicon carbide rod 5 inside the high temperature heating zone 6. After heating, the ceramic is conveyed into the interior of the cooling zone 7. Then, the hot air inside the cooling zone 7 can be drawn into the recovery box 202 by the operation of the blower body 211. Secondly, the hot air drawn into the kiln is filtered through two stages, namely the first filter layer 212 and the second filter layer 213, which can effectively trap dust particles and fibrous impurities in the hot air and prevent impurities from accumulating inside the air conveying pipe 209. The filtered hot air is transported to the interior of the exhaust box 203 through the air conveying pipe 209 and then discharged through the exhaust port 204 at the top of the exhaust box 203. This can preheat the ceramics inside the preheating zone 4 and improve the processing effect of the ceramics. Finally, by pulling the adjusting block 217 horizontally, the locking block 216 can be removed from the limiting hole inside the recycling box 202, the inspection cover 207 can be opened, the filter frame 208 can be easily pulled out from the support plate 210, and the first filter layer 212 and the second filter layer 213 inside the filter frame 208 can be easily cleaned, thus improving the reliability of continuous operation of the device.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waste heat utilization device for ceramic roller kilns, characterized in that: Applied to the main body (1) of a ceramic roller kiln; comprising: a waste heat recovery mechanism (2), wherein the waste heat recovery mechanism (2) is disposed on one side of the main body (1) of the ceramic roller kiln, the waste heat recovery mechanism (2) comprising a recovery box (202) disposed on one side of the main body (1) of the ceramic roller kiln, wherein a support plate (210) is disposed above the interior of the recovery box (202), wherein a filter frame (208) is disposed through the top of the support plate (210), wherein a filter layer (212) is disposed at one end of the interior of the filter frame (208), wherein the filter layer (212) is disposed at the top ... A second filter layer (213) is provided at the end of the filter frame (208) away from the first filter layer (212). A maintenance cover (207) is hinged to the top of the recycling box (202). A limit seat (214) is provided at the bottom of the maintenance cover (207). A spring (215) is provided inside the maintenance cover (207). An adjusting block (217) is provided at the end of the spring (215) away from the limit seat (214). A locking block (216) is provided at the end of the adjusting block (217) away from the spring (215).

2. The waste heat utilization device for a ceramic roller kiln according to claim 1, characterized in that: The middle part of the ceramic roller kiln body (1) is set as a high-temperature heating zone (6), the end of the ceramic roller kiln body (1) near the recovery box (202) is set as a cooling zone (7), and the end of the ceramic roller kiln body (1) away from the cooling zone (7) is set as a preheating zone (4).

3. The waste heat utilization device for a ceramic roller kiln according to claim 2, characterized in that: The ceramic roller kiln body (1) is uniformly provided with conveying rollers (3) in the middle part, and silicon carbide rods (5) are uniformly provided inside the high-temperature heating zone (6).

4. The waste heat utilization device for a ceramic roller kiln according to claim 1, characterized in that: The recycling bin (202) has a viewing window (205) on one side, and the inspection cover (207) has a handle (206) on the top.

5. The waste heat utilization device for a ceramic roller kiln according to claim 1, characterized in that: The bottom of the recycling bin (202) is provided with a fan body (211), and the input end of the fan body (211) is inserted into the interior of the cooling zone (7).

6. The waste heat utilization device for a ceramic roller kiln according to claim 2, characterized in that: The bottom of the preheating zone (4) is provided with an exhaust box (203), and the top of the exhaust box (203) is provided with exhaust vents (204) evenly distributed.

7. The waste heat utilization device for a ceramic roller kiln according to claim 1, characterized in that: An air supply pipe (209) is installed inside the recycling box (202), and the end of the air supply pipe (209) away from the recycling box (202) is inserted into the interior of the exhaust box (203).

8. The waste heat utilization device for a ceramic roller kiln according to claim 7, characterized in that: The air duct (209) is provided with a heat insulation sleeve (201) on the outside, which is made of aluminum silicate fiber felt.

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