Kiln cold water circulating device
The U-shaped side wall cooling chamber and integrated system enhance brick kiln cooling efficiency by ensuring uniform water distribution and rapid heat exchange, addressing the inefficiencies of gravity-fed systems.
Patent Information
- Application Number
- CN202422367892.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-27
AI Technical Summary
During the cooling process of existing blue brick brick kilns, the cooling water flow rate is small and the cooling speed is slow, resulting in uneven cooling and low overall efficiency.
The U-shaped sidewall cooling box and thermal column design is adopted, combined with the drain valve and the drain pipe to achieve uniform distribution and efficient circulation of cooling water, and heat exchange is carried out through the sidewall cooling box and the sidewall of the kiln to be in close contact.
It improves the cooling efficiency of the side wall of the kiln, ensures cooling uniformity, shortens process time, reduces fuel consumption, and improves the utilization efficiency of cooling water.
Smart Images
Figure CN223106708U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of cooling equipment, and particularly relates to a cold water circulation device for a kiln furnace. Background Art
[0002] Blue bricks are made by firing clay. Clay is the product of long-term weathering of certain aluminosilicate minerals and gets its name due to its strong viscosity. The clay is mixed with water to make brick blanks, which are then fired in a brick kiln to make bricks. Iron is contained in the clay. When it is completely oxidized during the firing process, iron(III) oxide is formed and appears red, which is the most commonly used red brick. If water is added to cool the brick kiln during the firing process, so that the iron in the clay is not completely oxidized, it will appear blue, that is, blue brick.
[0003] In the existing blue brick production process, in order to save water resources and reduce costs, the method of circulating cooling water is adopted to cool the brick kiln. Generally, a water outlet is set at the top of the kiln, and the cooling water flows down along the side wall from the top of the kiln by gravity, flows into the bottom reservoir, and finally is circulated by a water pump. However, the flow rate of the cooling water in this method is small, and the overall cooling speed is slow. Moreover, due to the adhesion and cohesion of the cooling water, some side walls may not have cooling water flowing down, resulting in uneven cooling of the side walls of the brick kiln and low overall cooling efficiency.
[0004] Therefore, a cold water circulation device for a kiln furnace is needed. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a cold water circulation device for a kiln furnace, so as to overcome the defects that when the existing blue brick kiln is cooled, the cooling water flows down along the side wall from the top of the kiln by gravity and flows into the bottom reservoir, and the flow rate of the cooling water in this method is small and the overall cooling speed is slow. The specific technical solutions are as follows:
[0006] A cold water circulation device for a kiln furnace has a kiln furnace surrounded by a kiln top, a kiln bottom and a kiln side wall, and a cold water circulation device. The cold water circulation device includes a top cooling box, side wall cooling boxes, a water inlet pipe, a water pump, a drain pipe and a water tank. The top cooling box is installed on the kiln top, the side wall cooling boxes are symmetrically installed on the kiln side wall, the top cooling box is connected to the water tank through the water inlet pipe, the water pump is installed on the water inlet pipe, the cross-sectional shape of the side wall cooling box is U-shaped, one end of the side wall cooling box that fits with the kiln side wall is connected to the top cooling box, the other end of the side wall cooling box is connected to the water tank through the drain pipe, and the two ends of the side wall cooling box are at the same height.
[0007] Preferably, it further includes bottom cooling pipes, which are arranged in an array on the kiln bottom, and both ends of the bottom cooling pipes are respectively connected to the side wall cooling boxes on both sides of the kiln furnace, so that the side wall cooling boxes are communicated with each other.
[0008] Preferably, a drain valve is installed at the bottom of the sidewall cooling tank, and a drain pipe is installed between the drain valve and the water tank.
[0009] Preferably, the bottom of the sidewall cooling tank is provided with an inclined surface, the drain valve is installed at one end of the sidewall cooling tank, and the lower end of the inclined surface is located at one end close to the drain valve.
[0010] Preferably, the sidewall cooling tank includes a first cooling part that fits against the sidewall of the kiln and a second cooling part that does not fit against the sidewall of the kiln. One end of the first cooling part is connected to one end of the second cooling part. There is a gap between the first cooling part and the second cooling part. The cross-sectional area of the second cooling part with respect to the horizontal plane is one-half of the cross-sectional area of the first cooling part with respect to the horizontal plane.
[0011] Preferably, a plurality of heat conduction columns are arrayed and installed in the sidewall cooling tank, and the heat conduction columns extend outside the sidewall cooling tank and are embedded in the sidewall of the kiln.
[0012] Preferably, both the drain pipe and the drain pipe are connected to the top of the water tank, and a gas valve for adjusting the air pressure balance in the water tank is installed on the top of the water tank.
[0013] Compared with the existing technology, the utility model has the following beneficial effects:
[0014] 1. By setting the sidewall cooling tank in a U shape, the utility model makes it similar to a communicating vessel. Therefore, when cooling water enters the sidewall cooling tank, the water levels at both ends of the sidewall cooling tank are the same. Since the heights at both ends of the sidewall cooling tank are the same and equal to the height of the sidewall of the kiln, water will only start to drain into the drain pipe when the sidewall cooling tank is completely filled with cooling water. A large amount of cooling water can be filled into the sidewall cooling tank to participate in the cooling. This enables the sidewall cooling tank to absorb heat from the sidewall of the kiln comprehensively and quickly, improving the cooling efficiency and shortening the process time.
[0015] 2. By installing a drain valve and a drain pipe at the bottom of the sidewall cooling tank, all the cooling water in the top cooling tank and the sidewall cooling tank is emptied before cooling the kiln, avoiding the influence of cooling water on the heating and temperature rise of the kiln and increasing the fuel cost. At the same time, it avoids partial cooling water from being preheated in advance, affecting the efficiency of subsequent circulating cooling.
[0016] 3. Since the heat conduction columns are embedded in the sidewall of the kiln, the contact surface with the sidewall of the kiln is increased, so heat transfer can be better carried out. At the same time, the heat conduction columns also increase the contact surface between the cooling water and the heat source, improving the cooling efficiency. Description of the Drawings
[0017] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.
[0018] Figure 1 is a schematic structural diagram of the present utility model.
[0019] Figure 2 is a schematic structural diagram of the present utility model.
[0020] Main reference numeral description:
[0021] 1. Kiln top; 2. Kiln bottom; 3. Kiln side wall; 4. Top cooling box; 5. Side wall cooling box; 501. First cooling part; 502. Second cooling part; 6. Water inlet pipe; 7. Water pump; 8. Drain pipe; 9. Water tank; 10. Cooling pipe; 11. Drain valve; 12. Drain pipe; 13. Inclined surface; 14. Heat conduction column. Specific implementation manners
[0022] Next, the working principle of this embodiment will be described in detail to enable those skilled in the art to better understand the present utility model:
[0023] Next, the working principle of this embodiment will be described in detail so that those skilled in the art can better understand the present utility model:
[0024] Refer to Figure 1, A kiln cooling water circulation device, having a kiln surrounded by a kiln top 1, a kiln bottom 2 and kiln side walls 3. The cooling water circulation device includes a top cooling tank 4, side wall cooling tanks 5, a water inlet pipe 6, a water pump 7, a drain pipe 8 and a water tank 9. The top cooling tank 4 is installed on the kiln top 1, and the side wall cooling tanks 5 are symmetrically installed on the kiln side walls 3. The top cooling tank 4 is connected to the water tank 9 through the water inlet pipe 6, and the water pump 7 is installed on the water inlet pipe 6. The cross-sectional shape of the side wall cooling tank 5 is U-shaped. One end of the side wall cooling tank 5 that fits the kiln side wall 3 is connected to the top cooling tank 4, and the other end of the side wall cooling tank 5 is connected to the water tank 9 through the drain pipe 8. The two ends of the side wall cooling tank 5 are at the same height. When it is necessary to cool the kiln at the beginning, the water pump 7 will pump out the cooling water from the water tank 9, and then enter the top cooling tank 4 through the water inlet pipe 6 to conduct heat exchange and cooling on the kiln top 1. The cooling water in the top cooling tank 4 will flow to both sides and enter the side wall cooling tanks 5. Since the two ends of the side wall cooling tank 5 are at the same height and are at the same height as the kiln side wall 3, the water will start to drain into the drain pipe 8 only when the side wall cooling tanks 5 are completely filled with cooling water, and a large amount of cooling water can be filled into the side wall cooling tanks 5 to participate in cooling. This enables the side wall cooling tanks 5 to absorb heat from the kiln side walls 3 comprehensively and quickly, improving the cooling efficiency and shortening the process time.
[0025] It further includes a bottom cooling pipe 10, which is installed on the kiln bottom 2 in an array. The two ends of the bottom cooling pipe 10 are respectively connected to the side wall cooling tanks 5 on both sides of the kiln, making the side wall cooling tanks 5 communicate with each other. The bottom cooling pipe 10 can conduct heat exchange and cooling on the kiln bottom 2, improving the cooling efficiency of the kiln. At the same time, the bottom cooling pipe 10 can also make the side wall cooling tanks 5 on both sides of the kiln communicate with each other, making the water volumes on both sides equal, enabling the kiln side walls 3 to be cooled evenly, ensuring that the green bricks in the kiln are cooled evenly, and the quality is more uniform and closer.
[0026] A drain valve 11 is installed at the bottom of the side wall cooling tank 5, and a drain pipe 12 is installed between the drain valve 11 and the water tank 9. Before cooling the kiln, all the cooling water in the top cooling tank 4 and the side wall cooling tanks 5 is drained to avoid the cooling water affecting the heating and temperature rise of the kiln, increasing the fuel cost. At the same time, it avoids some cooling water being pre-heated, affecting the efficiency of subsequent cycle cooling.
[0027] Reference Figure 2 , An inclined surface 13 is provided at the bottom of the side wall cooling tank 5, and the drain valve 11 is installed at one end of the side wall cooling tank 5. The lower end of the inclined surface 13 is located at the end close to the drain valve 11. The inclined surface 13 can assist in guiding the cooling water in the side wall cooling tank 5 to flow towards the drain valve 11, reducing the residual cooling water in the side wall cooling tank 5 and improving the utilization efficiency of the cooling water.
[0028] The sidewall cooling tank 5 includes a first cooling part 501 that fits against the kiln sidewall 3 and a second cooling part 502 that does not fit against the kiln sidewall 3. One end of the first cooling part 501 is connected to one end of the second cooling part 502. There is a gap between the first cooling part 501 and the second cooling part 502 to prevent heat transfer between them, which would affect the subsequent cooling of the cooling water. The cross-sectional area of the second cooling part 502 in the horizontal plane is half of the cross-sectional area of the first cooling part 501 in the horizontal plane. Since the function of the second cooling part 502 is to maintain the liquid level height of the first cooling part 501 so that the cooling water can fill the sidewall cooling tank 5, in order to reduce the cooling water staying in the second cooling part 502, enabling the cooling water to return to the water tank 9 faster for cooling and improving the utilization efficiency of the cooling water, the volume of the second cooling part 502 can be reduced so that its cross-sectional area in the horizontal plane is half of the cross-sectional area of the first cooling part 501 in the horizontal plane, or even smaller.
[0029] A plurality of heat conducting columns 14 are arrayedly installed in the sidewall cooling tank 5, and the heat conducting columns 14 extend outside the sidewall cooling tank 5 and are embedded in the kiln sidewall 3. Since the heat conducting columns 14 are embedded in the kiln sidewall 3, the contact area with the kiln sidewall 3 is increased, so heat transfer can be better carried out. At the same time, the heat conducting columns 14 also increase the contact area between the cooling water and the heat source, improving the cooling efficiency. The heat conducting columns 14 are hermetically connected to the sidewall cooling tank 5 to prevent the cooling water from leaking and coming into direct contact with the kiln furnace.
[0030] The drain pipe 12 and the discharge pipe 8 are both connected to the top of the water tank 9 to prevent the cooling water in the water tank 9 from blocking the outlets of the discharge pipe 8 and the drain pipe 12, which would affect the drainage of the sidewall cooling tank 5. A gas valve for adjusting the air pressure balance in the water tank 9 is installed at the top of the water tank 9 to prevent the air pressure in the water tank 9 from affecting the rapid discharge of the cooling water in the drain pipe 8 and the discharge pipe 12.
[0031] In summary, in the present utility model, the sidewall cooling tank 5 is set to be U-shaped, so that the cooling water can completely fill the sidewall cooling tank 5. A large amount of cooling water can participate in the heat exchange simultaneously to cool the kiln furnace, and the kiln sidewall 3 can be evenly cooled, improving the cooling efficiency and shortening the process time.
[0032] The foregoing description of specific exemplary embodiments of the present utility model is for purposes of illustration and exemplification, and is not intended to limit the present utility model to the precise forms disclosed. Obviously, many changes and variations are possible in light of the above teachings. Although embodiments of the present utility model have been shown and described, the specific embodiments are merely interpretations of the present utility model and not limitations thereof. The specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present utility model and its practical applications, so that those skilled in the art can, after reading this specification, make modifications, substitutions, variations, and various different selections and changes that do not make a creative contribution to the embodiments as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.
Claims
1. A kiln cold water circulation device, having a kiln formed by a kiln top (1), a kiln bottom (2) and kiln side walls (3), is characterized in that, Cold water circulation device, the cold water circulation device includes a top cooling box (4), side wall cooling boxes (5), a water inlet pipe (6), a water pump (7), a drain pipe (8) and a water tank (9). The top cooling box (4) is installed on the kiln top (1), and the side wall cooling boxes (5) are symmetrically installed on the kiln side wall (3). The top cooling box (4) is connected to the water tank (9) through the water inlet pipe (6), and the water pump (7) is installed on the water inlet pipe (6). The cross-sectional shape of the side wall cooling box (5) is U-shaped. One end of the side wall cooling box (5) that fits the kiln side wall (3) is connected to the top cooling box (4), and the other end of the side wall cooling box (5) is connected to the water tank (9) through the drain pipe (8). The two ends of the side wall cooling box (5) are at the same height.
2. The cold water circulation device of a kiln furnace according to claim 1, wherein, It further includes a bottom cooling pipe (10). The bottom cooling pipes (10) are installed in an array on the kiln bottom (2), and both ends of the bottom cooling pipe (10) are respectively connected to the side wall cooling boxes (5) on both sides of the kiln furnace, so that the side wall cooling boxes (5) are communicated with each other.
3. A kiln cold water circulation device according to claim 1, characterized in that, A drain valve (11) is installed at the bottom of the side wall cooling box (5), and a drain pipe (12) is installed between the drain valve (11) and the water tank (9).
4. The kiln cold water circulation device according to claim 3, characterized in that, An inclined surface (13) is provided at the bottom of the side wall cooling box (5). The drain valve (11) is installed at one end of the side wall cooling box (5), and the lower end of the inclined surface (13) is located at the end close to the drain valve (11).
5. The cold water circulation device of a kiln furnace according to claim 1, characterized in that, The side wall cooling box (5) includes a first cooling part (501) that fits the kiln side wall (3) and a second cooling part (502) that does not fit the kiln side wall (3). One end of the first cooling part (501) is connected to one end of the second cooling part (502). There is a gap between the first cooling part (501) and the second cooling part (502). The cross-sectional area of the second cooling part (502) with respect to the horizontal plane is one-half of the cross-sectional area of the first cooling part (501) with respect to the horizontal plane.
6. The cold water circulation device of a kiln furnace according to claim 1, characterized in that, A plurality of heat conduction columns (14) are installed in an array in the side wall cooling box (5), and the heat conduction columns (14) extend outside the side wall cooling box (5) and are embedded in the kiln side wall (3).
7. A kiln cold water circulation device according to claim 3, characterized in that, Both the drain pipe (12) and the drain pipe (8) are connected to the top of the water tank (9), and a gas valve for adjusting the air pressure balance in the water tank (9) is installed on the top of the water tank (9).