Multi-section roasting device for sintered bricks
By using a rotating baffle design within the neutralization tank, the problem of wasted alkaline solution in multi-stage calcination devices for sintered bricks was solved, achieving full utilization of the solution and resource conservation.
Patent Information
- Application Number
- CN202520409674.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-10
AI Technical Summary
Existing multi-stage calcination devices for sintered bricks suffer from severe resource waste during gas purification, especially since the alkaline solution in the first chamber is consumed at a higher rate than in the second chamber, resulting in unused alkaline solution remaining in the second chamber.
The neutralization tank employs a baffle design. A rotary motor drives the baffle to rotate 180 degrees, flipping the remaining alkaline solution from the repurification chamber to the primary purification chamber, thus achieving the exchange of solutions between the two chambers and ensuring that both chambers are fully utilized.
This approach enables full utilization of the alkaline solution in the neutralization tank, reduces resource waste, and improves the resource efficiency of the multi-stage calcination device for sintered bricks.
Smart Images
Figure CN223795776U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of brick sintering technology, and in particular to a multi-stage firing device for sintered bricks. Background Technology
[0002] Existing multi-stage sintering devices for bricks generally include a sintering furnace, an exhaust pipe, and a flue gas treatment device. The furnace chamber of the sintering furnace holds the brick blanks to be sintered. One end of the exhaust pipe is connected to the furnace chamber. The flue gas treatment device has two chambers, each containing a portion of alkaline solution. One chamber is connected to the other end of the exhaust pipe to neutralize the acidic gases generated during brick sintering. The lower liquid layer of the latter chamber is connected to the upper gas layer of the former chamber via a pipe. The upper gas layer of the latter chamber is connected to the outside, allowing the alkaline solution in this chamber to further purify the flue gas purified in the former chamber before discharging it to the outside. The two chambers of the flue gas treatment device also share a drain port, allowing the user to simultaneously drain the waste liquid from both chambers and refill them.
[0003] However, since the consumption rate of alkaline solution in the first chamber is much higher than that in the second chamber, when waste is discharged at the same time, there is still a lot of unused alkaline solution in the second chamber, which is a waste of resources.
[0004] In view of this, there is a need to provide a multi-stage firing device for sintered bricks. Utility Model Content
[0005] To address the problem of wasted resources in purifying gas in existing multi-stage sintering brick calcining devices, this application provides a multi-stage sintering brick calcining device.
[0006] This application provides a multi-stage sintering device for bricks, which adopts the following technical solution: including a sintering furnace, a neutralization tank, a gas guide pipe and an exhaust pipe, wherein the interior of the sintering furnace is provided with a furnace chamber for sintering brick blanks;
[0007] The neutralization tank includes a tank body, a partition, an air intake unit, and a drive component. The tank body has an internal cavity for holding the neutralization solution, and the cross-section of the internal cavity is circular. The partition is disposed in the internal cavity along the same rotation axis and is rotatably connected to the inner wall of the tank body. The partition divides the internal cavity into a primary purification chamber and a secondary purification chamber. An air inlet is provided on the inner wall of the primary purification chamber, and an air outlet is provided on the inner wall of the secondary purification chamber. The air intake unit is disposed on the partition and can introduce the gas inside the primary purification chamber into the secondary purification chamber. The drive component is kinetically connected to the partition and can drive the partition to rotate around the rotation axis of the partition and exchange the neutralization solution in the primary purification chamber and the secondary purification chamber.
[0008] One end of the gas guide pipe is connected to the top of the furnace, the other end of the gas guide pipe is connected to the gas inlet, and one end of the exhaust pipe is connected to the exhaust outlet.
[0009] By adopting the above technical solution, the sintering furnace can fire the brick blanks, and the gas guide pipe can introduce the waste gas generated during the firing of the brick blanks into the neutralization tank. The user can first add a certain amount of neutralization solution to both the primary purification chamber and the secondary purification chamber, so that the waste gas first enters the primary purification chamber and is neutralized by acid and alkali for the first time, and then enters the secondary purification chamber through the gas induced unit to be neutralized by acid and alkali for the second time. After the alkaline substances in the neutralization solution in the primary purification chamber are consumed, the user can drive the partition to rotate 180 degrees around its own rotation axis through the drive component, so that the neutralization solution that was originally located in the secondary purification chamber and had not been depleted of alkaline substances can be flipped into the primary purification chamber by flipping the neutralization solution that was originally located in the primary purification chamber into the secondary purification chamber. Then the neutralization solution in the secondary purification chamber can be replaced separately, so that the neutralization tank can continue to purify the waste gas. This makes full use of the neutralization solution in the two chambers, so that the multi-stage firing device for sintered bricks can save more resources.
[0010] Specifically, the driving component is a rotary motor, which is located at the top of the tank. The output shaft of the rotary motor passes through a through hole in the top of the tank and is connected to the rotating shaft of the partition.
[0011] By adopting the above technical solution, the user can drive the partition to rotate using a rotary motor.
[0012] Specifically, the air intake unit includes a four-way pipe and two solenoid valves. The four-way pipe includes two air inlets and two water inlets. The initial purification chamber and the re-purification chamber each have one air inlet and one water inlet. Each air inlet is located at the top of the neutralization tank away from the neutralization solution, and each water inlet is located at the bottom of the neutralization tank and is submerged in the neutralization solution.
[0013] Each solenoid valve corresponds to one of the air inlets, and each solenoid valve is located on the corresponding air inlet and can control the opening and closing of the air inlet.
[0014] By adopting the above technical solution, after the partition rotates, the user can open the solenoid valve on the air inlet in the primary purification chamber and close the solenoid valve on the air inlet in the secondary purification chamber, so that the gas in the primary purification chamber can pass through the four-way pipe into the neutralization solution in the secondary purification chamber.
[0015] Specifically, a one-way valve is provided at the end of the gas guide pipe away from the sintering furnace.
[0016] By adopting the above technical solution, the one-way valve can prevent the neutralization solution in the initial cleaning chamber from flowing back into the gas guide pipe after the sintering furnace stops working.
[0017] Specifically, the air inlet is equipped with a mesh plate.
[0018] By adopting the above technical solution, the mesh on the screen can separate the gas entering the primary purification chamber from the air guide tube, so as to form a large number of small bubbles in the neutralization solution in the primary purification chamber, thereby increasing the contact area between the neutralization solution and the waste gas and improving the purification effect.
[0019] Specifically, the tank body is provided with an observation window leading to the inside of the tank body, and the observation window is sealed with a transparent component.
[0020] By adopting the above technical solution, users can first add acid-base indicators such as methyl orange and phenolphthalein to the neutralization solution, and then observe the color of the neutralization solution inside the container through the observation window to judge the usage of these neutralization solutions.
[0021] Furthermore, the neutralization tank also includes a sealing cap, and the inner wall of the tank has a waste outlet leading to the outside, and the sealing cap can block the waste outlet.
[0022] By adopting the above technical solution, users can discharge the neutralized solution in the primary or secondary cleaning chamber by opening the waste outlet and rotating the baffle.
[0023] Furthermore, the transparent component is provided with a marking line, which is located directly above the waste outlet. When the edge of the partition plate coincides with the marking line, the primary cleaning chamber and the secondary cleaning chamber are simultaneously connected to the waste outlet. When the side edge of the partition plate closest to the marking line is located between the marking line and the exhaust port, the primary cleaning chamber is connected to the waste outlet. When the side edge of the partition plate closest to the marking line is located between the marking line and the air inlet, the secondary cleaning chamber is connected to the waste outlet.
[0024] By adopting the above technical solution, the user can rotate the baffle by referring to the markings. When the edge of the baffle coincides with the markings, the primary cleaning chamber and the secondary cleaning chamber are simultaneously connected to the waste outlet, so that the user can release the neutralized solution in the primary cleaning chamber and the secondary cleaning chamber at the same time. When the side of the baffle closest to the markings is located on the side of the markings closest to the exhaust port, the primary cleaning chamber is connected to the waste outlet, so that the user can release the neutralized solution inside. When the side of the baffle closest to the markings is located on the side of the markings closest to the air inlet, the secondary cleaning chamber is connected to the waste outlet, so that the user can release the neutralized solution in the secondary cleaning chamber.
[0025] In summary, this application includes the following beneficial technical effects:
[0026] The system includes a sintering furnace, a neutralization tank, a gas inlet pipe, and an exhaust pipe. The sintering furnace has a furnace chamber for firing brick blanks. The neutralization tank includes a tank body, a baffle plate, a gas induced flow unit, and a drive unit. The tank body has an inner cavity for holding the neutralization solution, and the cross-section of the inner cavity is circular. The baffle plate is located in the inner cavity along a rotation axis and is rotatably connected to the inner wall of the tank body. The baffle plate divides the inner cavity into a primary purification chamber and a secondary purification chamber. An air inlet is opened on the inner wall of the primary purification chamber, and an exhaust outlet is opened on the inner wall of the secondary purification chamber. The gas inlet unit is located on the baffle plate and can introduce gas from the primary purification chamber into the secondary purification chamber. The drive unit is driven by the baffle plate and can drive the baffle plate to rotate around the rotation axis of the baffle plate to exchange the neutralization solution in the primary purification chamber and the secondary purification chamber. One end of the gas inlet pipe is connected to the top of the furnace chamber, and the other end of the gas inlet pipe is connected to the air inlet. The exhaust pipe... One end is connected to the exhaust port, allowing the user to add a certain amount of neutralizing solution to both the primary purification chamber and the secondary purification chamber. This allows the exhaust gas to first enter the primary purification chamber for initial acid-base neutralization, and then pass through the induced draft unit into the secondary purification chamber for a second acid-base neutralization. Once the alkaline substances in the neutralizing solution in the primary purification chamber are exhausted, the user can drive the partition to rotate 180 degrees around its own axis. This allows the remaining alkaline neutralizing solution in the secondary purification chamber to be flipped back into the primary purification chamber, while the neutralizing solution in the primary purification chamber is flipped back into the secondary purification chamber. The neutralizing solution in the secondary purification chamber can then be replaced separately to continue purifying the exhaust gas using the neutralization tank. This fully utilizes the neutralizing solution in both chambers, making the multi-stage sintering brick firing device more resource-efficient. Attached Figure Description
[0027] Figure 1 This is a perspective view of a multi-stage firing apparatus for sintered bricks according to this application;
[0028] Figure 2 It is along Figure 1 A schematic cross-sectional view of the neutralization tank taken along its central axis, where the sintering furnace is not shown and only a portion of the gas guide pipe is shown;
[0029] Figure 3 It is along Figure 2 A schematic cross-sectional view taken along the AA direction.
[0030] Reference numerals: 1. Sintering furnace; 2. Neutralization tank; 21. Tank body; 211. Primary cleaning chamber; 2111. Air inlet; 2112. Mesh plate; 212. Secondary cleaning chamber; 2121. Exhaust port; 213. Transparent component; 2131. Marking line; 214. Liquid inlet; 22. Baffle plate; 23. Air priming unit; 231. Four-way pipe; 232. Solenoid valve; 24. Drive component; 25. Sealing cap; 3. Air guide pipe; 31. One-way valve; 4. Exhaust pipe. Detailed Implementation
[0031] Figure 1 This is a perspective view of a multi-stage firing apparatus for sintered bricks according to this application. Figure 2 It is along Figure 1 A schematic cross-sectional view taken along the central axis of the neutralization tank, where the sintering furnace is not shown, and only a portion of the gas guide pipe is shown. See also Figure 1 and Figure 2 The multi-stage calcination apparatus for sintered bricks provided in this application includes: a sintering furnace 1, a neutralization tank 2, a gas guide pipe 3, and an exhaust pipe 4. The sintering furnace 1 has a furnace chamber (not shown in the figure) for calcining brick blanks. The neutralization tank 2 includes a tank body 21, a baffle plate 22, a gas induced unit 23, a drive component 24, and a sealing cover 25. The tank body 21 has an inner cavity for holding the neutralization solution. The inner cavity is a cylinder with a circular cross-section. The baffle plate 22 is located in the inner cavity and is rotatably connected to the inner wall of the tank body 21. The rotation axis of the baffle plate 22 coincides with the rotational symmetry axis of the inner cavity. The edge of the baffle plate 22 abuts against the inner wall of the tank body 21 and divides the inner cavity into a primary cleaning cavity 211 and a secondary cleaning cavity 212. An air inlet 2111 and an exhaust outlet are also provided on the inner wall of the tank body 21, which lead to the outside. 2121, the exhaust port 2121 is higher than the air inlet 2111. The chamber connected to the air inlet 2111 is the primary purification chamber 211, and the chamber connected to the exhaust port 2121 is the secondary purification chamber 212. The driving component 24 is a rotary motor, which is located at the top of the tank 21. The output shaft of the rotary motor passes through a through hole opened at the top of the tank 21 and is connected to the rotation shaft of the partition 22, so that the user can drive the partition 22 to rotate to exchange the neutralization solution in the primary purification chamber 211 and the secondary purification chamber 212. At the top of the tank 21, there are two liquid inlets 214 opposite each other with the rotary motor as the center. Each liquid inlet 214 is threaded with a cap, so that the user can add the neutralization solution to the two chambers separately through the two liquid inlets 214.
[0032] See Figure 1 and Figure 2 The gas extraction unit 23 includes a four-way pipe 231 and two solenoid valves 232. The four-way pipe 231 includes two gas inlets and two water inlets. The primary purification chamber 211 and the secondary purification chamber 212 each have one gas inlet and one water inlet. Each gas inlet is located at the top of the neutralization tank 2, away from the neutralization solution, and each water inlet is located at the bottom of the neutralization tank 2 and is submerged in the neutralization solution. Each solenoid valve 232 corresponds to a gas inlet. Each solenoid valve 232 is located on the corresponding gas inlet and can control the opening and closing of the gas inlet. This allows the user to open the solenoid valve 232 on the gas inlet in the primary purification chamber 211 and close the solenoid valve 232 on the gas inlet in the secondary purification chamber 212, so that the gas in the primary purification chamber 211 passes through the four-way pipe 231 and enters the neutralization solution in the secondary purification chamber 212.
[0033] See Figure 1 and Figure 2 One end of the gas guide pipe 3 is connected to the top of the furnace, and the other end of the gas guide pipe 3 is connected to the gas inlet 2111. A one-way valve 31 is provided at this end of the gas guide pipe 3. The one-way valve 31 can be as follows: Figure 2 The mushroom-shaped spring-loaded check valve 31 shown can also be other check valves such as diaphragm check valve 31, so that the neutralized solution in the primary purification chamber 211 can be prevented from flowing back into the gas guide pipe 3 after the sintering furnace 1 stops working. One end of the exhaust pipe 4 is connected to the exhaust port 2121, and the other end of the exhaust pipe 4 can be directly connected to the outside or to a gas filtration device such as activated carbon. A mesh plate 2112 is also provided at the air inlet 2111 so that the gas entering the primary purification chamber 211 from the gas guide pipe 3 can be separated by the mesh on the mesh plate 2112, thereby forming a large number of small bubbles in the neutralized solution in the primary purification chamber 211, thereby increasing the contact area between the neutralized solution and the waste gas and improving the purification effect.
[0034] Figure 3 It is along Figure 2 A schematic cross-sectional view taken along the AA direction. See also Figure 2 and Figure 3 The tank 21 is provided with observation windows and a waste outlet at the top and bottom, respectively, leading to the interior of the tank 21. The observation windows are located directly above the waste outlet, and a transparent element 213, which can be a glass plate, is sealed inside the observation windows. This allows the user to add acid-base indicators such as methyl orange or phenolphthalein to the neutralization solution and then observe the color of the neutralization solution inside the tank 21 through the observation windows to determine the usage status of the neutralization solution. A sealing cap 25 is threaded into the waste outlet. When the edge of the partition 22 is rotated to face the waste outlet, the sealing cap 25 completely occupies the space between the waste outlet and the edge of the partition 22, preventing the neutralization solution in the primary purification chamber 211 or the secondary purification chamber 212 from entering another chamber through these spaces. A mark 2131 is provided in the middle so that the user can rotate the partition 22 by referring to the mark 2131. When the edge of the partition 22 coincides with the mark 2131, the primary cleaning chamber 211 and the secondary cleaning chamber 212 are simultaneously connected to the waste outlet, so that the user can release the neutralized solution in the primary cleaning chamber 211 and the secondary cleaning chamber 212 at the same time. When the side of the partition 22 closest to the mark 2131 is located on the side of the mark 2131 closest to the exhaust port 2121, the primary cleaning chamber 211 is connected to the waste outlet, so that the user can release the neutralized solution inside. When the side of the partition 22 closest to the mark 2131 is located on the side of the mark 2131 closest to the air inlet 2111, the secondary cleaning chamber 212 is connected to the waste outlet, so that the user can release the neutralized solution in the secondary cleaning chamber 212.
[0035] It should be noted that the above-mentioned air guide pipe 3 and exhaust pipe 4 can be fixed by a bracket composed of columns and beams. In order to show the connection relationship between neutralization tank 2 and air guide pipe 3 and between neutralization tank 2 and exhaust pipe 4, the aforementioned bracket is not shown in the attached drawings.
[0036] The working principle of the multi-stage firing device for sintered bricks disclosed in this application is as follows:
[0037] The sintering furnace 1 can fire the brick blanks, while the gas guide pipe 3 can introduce the waste gas generated during the firing of the brick blanks into the neutralization tank 2. The user can first add a certain amount of neutralization solution to both the primary purification chamber 211 and the secondary purification chamber 212, then open the solenoid valve 232 on the gas inlet in the primary purification chamber 211 and close the solenoid valve 232 on the gas inlet in the secondary purification chamber 212, so that the waste gas first enters the primary purification chamber 211 and is neutralized by acid and alkali for the first time, and then enters the secondary purification chamber 212 through the gas priming unit 23 and is neutralized by acid and alkali for the second time.
[0038] After the alkaline substances in the neutralization solution in the primary purification chamber 211 are completely consumed, the user can first drive the partition 22 to rotate around its own axis by the drive component 24, so that the side of the partition 22 near the mark 2131 is located between the mark 2131 and the air inlet 2111, thereby connecting the re-purification chamber 212 with the waste outlet. Then, open the sealing cover 25 and the end cap on the liquid inlet 214 to replace the neutralization solution in the re-purification chamber 212. This allows the neutralization solution that was originally located in the re-purification chamber 212 and has not been depleted of alkaline substances to be flipped into the primary purification chamber 211 by the rotation of the partition 22, while the neutralization solution that was originally located in the primary purification chamber 211 is flipped into the re-purification chamber 212. Then, the neutralization solution in the re-purification chamber 212 can be replaced separately.
[0039] After replacing the neutralizing solution and reinstalling the end caps on the sealing cap 25 and the inlet 214, the air inlet on the four-way pipe 231, which was originally located in the primary purification chamber 211, will be flipped into the secondary purification chamber 212 by the partition plate 22. The user needs to open the solenoid valve 232 on the air inlet in the primary purification chamber 211 and close the solenoid valve 232 on the air inlet in the secondary purification chamber 212 to continue to use the neutralizing tank 2 to purify the waste gas. This allows for full utilization of the neutralizing solution in both chambers, making the multi-stage sintering brick firing device more resource-efficient.
[0040] It should be noted that the above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A multi-stage firing device for sintered bricks, characterized in that: It includes a sintering furnace (1), a neutralization tank (2), a gas guide pipe (3) and an exhaust pipe (4), wherein the interior of the sintering furnace (1) is provided with a furnace chamber for firing brick blanks; The neutralization tank (2) includes a tank body (21), a partition (22), an air intake unit (23), and a drive unit (24). The tank body (21) has an inner cavity for holding the neutralization solution. The cross-section of the inner cavity is circular. The partition (22) is disposed in the inner cavity along the same axis of rotation and is rotatably connected to the inner wall of the tank body (21). The partition (22) divides the inner cavity into a primary purification chamber (211) and a secondary purification chamber (212). An air inlet (211) is provided on the inner wall of the primary purification chamber (211). 1) An exhaust port (2121) is provided on the inner wall of the re-cleaning chamber (212). The gas induced unit (23) is provided on the partition (22) and can introduce the gas inside the primary cleaning chamber (211) into the re-cleaning chamber (212). The driving member (24) is connected to the partition (22) in a transmission manner, and the driving member (24) can drive the partition (22) to rotate around the rotation axis of the partition (22) and exchange the neutralization solution in the primary cleaning chamber (211) and the re-cleaning chamber (212). One end of the gas guide pipe (3) is connected to the top of the furnace, the other end of the gas guide pipe (3) is connected to the air inlet (2111), and one end of the exhaust pipe (4) is connected to the exhaust port (2121).
2. The multi-stage firing device for sintered bricks according to claim 1, characterized in that: The driving component (24) is a rotary motor, which is located on the top of the tank (21). The output shaft of the rotary motor passes through a through hole in the top of the tank (21) and is connected to the rotation shaft of the partition (22).
3. The multi-stage firing device for sintered bricks according to claim 1, characterized in that: The air intake unit (23) includes a four-way pipe (231) and two solenoid valves (232). The four-way pipe (231) includes two air inlets and two water inlets. The initial purification chamber (211) and the re-purification chamber (212) are each provided with one air inlet and one water inlet. Each air inlet is located at the top of the neutralization tank (2) away from the neutralization solution. Each water inlet is located at the bottom of the neutralization tank (2) and is submerged in the neutralization solution. Each solenoid valve (232) corresponds to one of the air inlets. Each solenoid valve (232) is located on the corresponding air inlet and can control the opening and closing of the air inlet.
4. The multi-stage firing device for sintered bricks according to claim 1, characterized in that: The gas guide pipe (3) is equipped with a one-way valve (31) at the end away from the sintering furnace (1).
5. The multi-stage firing device for sintered bricks according to claim 1, characterized in that: The air inlet (2111) is equipped with a mesh plate (2112).
6. The multi-stage firing device for sintered bricks according to claim 1, characterized in that: The tank (21) is provided with an observation window leading to the interior of the tank (21), and the observation window is sealed with a transparent element (213).
7. The multi-stage firing device for sintered bricks according to claim 6, characterized in that: The neutralization tank (2) also includes a sealing cap (25). The inner wall of the tank body (21) is provided with a waste outlet leading to the outside. The sealing cap (25) can block the waste outlet.
8. The multi-stage firing device for sintered bricks according to claim 7, characterized in that: The transparent component (213) is provided with a marking line (2131), which is located directly above the waste outlet. When the edge of the partition (22) coincides with the marking line (2131), the primary cleaning chamber (211) and the secondary cleaning chamber (212) are simultaneously connected to the waste outlet. When the side edge of the partition (22) closest to the marking line (2131) is located between the marking line (2131) and the exhaust port (2121), the primary cleaning chamber (211) is connected to the waste outlet. When the side edge of the partition (22) closest to the marking line (2131) is located between the marking line (2131) and the air inlet (2111), the secondary cleaning chamber (212) is connected to the waste outlet.