Kiln flue gas cooling and blowdown device and kiln

Abstract

The utility model provides a kiln flue gas cooling blowdown device and a kiln, the device comprises a box body, a cooling box and a heat collecting box are arranged in the box body, and the cooling box and the heat collecting box are of an integrated structure and are separated by a partition plate; the cooling box is provided with a water inlet pipe and a water outlet pipe, the heat collecting box is provided with a sewage draining exit, a smoke inlet and a smoke outlet, and the smoke outlet is connected with a smoke exhaust device. A heat conducting rod is arranged in the mounting hole, and a blade is arranged on the outer side of the end, located on the heat collecting box, of the heat conducting rod; and the sealing element is arranged on the outer side of the heat conducting rod and is positioned in the mounting hole. The cooling box and the heat collecting box are designed to be of an integrated structure and are separated through the partition plate, heat is effectively transmitted and recycled, water circulation in the cooling box can efficiently absorb and take away heat transmitted by high-temperature flue gas in the heat collecting box through the water inlet pipe and the water outlet pipe, and therefore the flue gas temperature is obviously reduced, and the heat efficiency is improved. And the thermal load on subsequent treatment equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of kiln flue gas exhaust, in particular to a kiln flue gas cooling and sewage discharging device and a kiln. Background Art

[0002] In glass manufacturing, the thermal equipment for melting glass batch materials melts the batch materials with glass components and added clinker at high temperature in the kiln to clarify and form glass liquid meeting the forming requirements. The mixture undergoes physical, chemical, and physical-chemical reactions among several different raw materials at high temperature in the glass kiln, during which different gases are generated. These gases pass through the kiln flue gas outlet, the flue gas main assembly to the exhaust fan and are discharged into the atmosphere.

[0003] In traditional glass kilns, after the flue gas in the kiln is cooled by air and then cooled by water spray cooling, the energy consumption of the exhaust fan is increased. Over time, the exhaust efficiency and service life of the exhaust fan are reduced. Content of the Utility Model

[0004] The purpose of the utility model is to provide a kiln flue gas cooling and sewage discharging device and a kiln, so as to solve the technical defect that after the flue gas is cooled by air and then cooled by water spray cooling, the energy consumption of the exhaust fan is increased, and over time, the exhaust efficiency and service life of the exhaust fan are reduced.

[0005] To achieve the purpose of the utility model, the utility model is realized through the following technical solutions:

[0006] In the first aspect, a kiln flue gas cooling and sewage discharging device is provided, including:

[0007] A box body, inside which there is a cooling box and a heat collecting box. The cooling box and the heat collecting box are of an integral structure and are separated by a partition board. A water inlet pipe and a water outlet pipe are arranged on the cooling box. A sewage discharge port, a flue gas inlet, and a flue gas outlet are arranged on the heat collecting box. A smoke exhaust device is connected to the flue gas outlet;

[0008] An installation hole is provided on the partition board, and a heat conducting rod is arranged in the installation hole. A blade is arranged on the outer side of one end of the heat conducting rod located in the heat collecting box;

[0009] A seal is arranged on the outer side of the heat conducting rod and is located in the installation hole.

[0010] Further, a plurality of installation holes are arranged along the longitudinal direction of the partition board, and one heat conducting rod is arranged in each of the plurality of installation holes.

[0011] Further, the heat conducting rod and the blade are welded.

[0012] Further, ball valves are arranged on both the water inlet pipe and the water outlet pipe.

[0013] Furthermore, valve temperature detection devices are also provided on the inlet pipe and the outlet pipe.

[0014] Furthermore, the smoke exhaust device is a fan.

[0015] Furthermore, the diameters of the flue gas inlet and the flue gas outlet are the same.

[0016] Furthermore, the sewage outlet is located below the flue gas outlet.

[0017] Furthermore, the length of one end of the heat conduction rod located inside the cooling box is less than the length of the heat conduction rod located inside the heat collection box at one end.

[0018] In a second aspect, a kiln is provided, which includes a kiln body, and the kiln body uses the cooling and sewage discharge device as described above for smoke exhaust.

[0019] The beneficial effects of the present utility model are as follows:

[0020] 1. By designing the cooling box and the heat collection box as an integrated structure and separating them by a partition, effective heat transfer and recovery are achieved. The water circulation in the cooling box can efficiently absorb and carry away the heat transferred from the high-temperature flue gas in the heat collection box through the inlet pipe and the outlet pipe, thereby significantly reducing the flue gas temperature and reducing the heat load on the subsequent treatment equipment. At the same time, the heat in the heat collection box is conducted to the cooling box through the heat conduction rod, improving the thermal energy utilization efficiency. Finally, by using the blades on the heat conduction rod, the turbulence degree of the flue gas flowing through the heat collection box is increased, enhancing the heat exchange efficiency, and further promoting the reduction of the flue gas temperature and the recovery of thermal energy. This not only reduces the heat directly discharged into the environment but also reduces the additional cooling energy consumption that may be generated due to high-temperature flue gas, which is beneficial for energy conservation and emission reduction.

[0021] 2. Multiple heat conduction rods are distributed in the longitudinal direction of the partition, increasing the heat conduction area and path, enabling the high-temperature flue gas in the heat collection box to transfer heat to the water in the cooling box more quickly and evenly, significantly improving the heat conduction efficiency, and accelerating the cooling speed of the flue gas.

[0022] 3. Welding connection is a firm and reliable connection method, which can tightly combine the heat conduction rod and the blade into a whole, effectively enhancing the strength and stability of the structure. In a complex environment of high temperature, high pressure and flue gas flow, it can resist deformation and damage, ensuring the long-term stable operation of the equipment.

[0023] 4. The setting of the ball valve can accurately control the flow rate of the cooling water, avoiding unnecessary energy waste. When the load of the kiln is low or the flue gas temperature is low, the flow rate of the cooling water can be appropriately reduced, thereby saving water resources and energy consumption.

[0024] 5. Based on the data provided by the valve temperature detection device, the flow rate and temperature of the cooling water can be adjusted more precisely to achieve the best cooling effect. This helps to improve the cooling efficiency and reduce energy consumption. Brief Description of the Drawings

[0025] Figure 1 Schematic diagram of a kiln flue gas cooling and sewage discharge device provided by the present utility model;

[0026] Where: 1. Cooling box; 2. Water inlet pipe; 3. Water outlet pipe; 4. Sewage outlet; 5. Sealing member; 6. Flue gas inlet; 7. Flue gas outlet; 8. Heat conduction rod; 9. Installation hole; 10. Blade; 11. Heat collection box. Detailed Embodiments

[0027] To make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model claimed, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0029] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the embodiments of the present utility model, it should be noted that if terms such as "upper", "lower", "horizontal", "inner", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0031] In addition, when the term "horizontal" appears, it does not mean that the component is required to be absolutely horizontal, but it can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but it can be slightly inclined.

[0032] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, when the terms "arranged", "installed", "connected", and "coupled" appear, they should be understood in a broad sense. For example, it 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] In glass manufacturing, a thermal equipment for melting glass batch materials melts the powdered materials with the prepared glass components and the added clinker at high temperature in the kiln to clarify and form glass liquid meeting the forming requirements. The mixture undergoes physical, chemical, and physicochemical reactions at high temperature in the glass kiln furnace among several different raw materials, and different gases will be generated during this process. The gases pass through the flue gas outlet of the kiln furnace, the flue gas assembly to the exhaust fan and are discharged into the atmosphere.

[0034] In a traditional glass kiln furnace, after the flue gas in the kiln furnace is cooled by air cooling and then cooled by water spray cooling, the energy consumption of the exhaust fan is increased. Over time, the exhaust efficiency and service life of the exhaust fan are reduced.

[0035] To solve the above-mentioned defects of the prior art, the inventor provides a kiln furnace flue gas cooling and sewage discharging device and a kiln furnace.

[0036] Such as Figure 1As shown, in the first aspect of this embodiment, a kiln flue gas cooling and sewage discharge device is provided, including a box body, in which a cooling box 1 and a heat collecting box 11 are provided, the cooling box 1 and the heat collecting box 11 are an integrated structure and separated by a partition; a water inlet pipe 2 and a water outlet pipe 3 are provided on opposite sides of the cooling box 1, and a sewage outlet 4, a flue gas inlet 6 and a flue gas outlet 7 are provided on opposite sides of the heat collecting box 11, and a smoke exhaust device is connected to the smoke outlet 7, which is used to discharge the flue gas in the heat collecting box 11 outward through the smoke outlet 7; a mounting hole 9 is provided on the partition, and a heat conducting rod 8 is provided in the mounting hole 9, and a blade 10 is provided on the outside of the heat conducting rod 8 at one end of the heat collecting box 11; a sealing member 5 is provided on the outside of the heat conducting rod 8 and is located in the mounting hole 9, for sealing the gap between the mounting hole 9 and the heat conducting rod 8. By designing the cooling box 1 and the heat collecting box 11 as an integrated structure and separating them with partitions, effective heat transfer and recovery are achieved. The water circulation in the cooling box 1 through the water inlet pipe 2 and the water outlet pipe 3 can efficiently absorb and take away the heat transferred from the high-temperature flue gas in the heat collecting box 11, thereby significantly reducing the flue gas temperature and reducing the heat load on the smoke exhaust device. At the same time, the heat in the heat collecting box 11 is transferred to the cooling box 1 through the heat conducting rod 8, thereby improving the efficiency of thermal energy utilization. Finally, the blades 10 on the heat conducting rod 8 are used to increase the turbulence of the flue gas when it flows through the heat collecting box, enhance the heat exchange efficiency, and further promote the reduction of the flue gas temperature and heat energy recovery. This not only reduces the heat directly discharged into the environment, but also reduces the additional cooling energy consumption that may be generated by the high-temperature flue gas, which is beneficial to energy conservation and emission reduction.

[0037] like Figure 1 As shown, multiple mounting holes 9 are provided along the length of the partition, and a heat conducting rod 8 is provided in each of the multiple mounting holes 9. The multiple heat conducting rods 8 are distributed along the length of the partition, increasing the area and path of heat conduction, so that the high-temperature flue gas in the heat collecting box 11 can transfer heat to the water in the cooling box 8 more quickly and evenly, significantly improving the heat conduction efficiency and accelerating the cooling rate of the flue gas. Welding the heat conducting rod 8 to the blade 10 can tightly combine the heat conducting rod 8 and the blade 10 into a whole, effectively improving the strength and stability of the structure. In the complex environment of high temperature, high pressure and flue gas flow, it can resist deformation and damage, ensuring the long-term stable operation of the equipment. Secondly, ball valves are provided on both the water inlet pipe 2 and the water outlet pipe 3. The setting of the ball valve can accurately control the flow of cooling water, which can avoid unnecessary energy waste. When the kiln load is low or the flue gas temperature is low, the flow of cooling water can be appropriately reduced, thereby saving water resources and energy consumption. Valve temperature detection devices are also installed on the water inlet pipe 2 and the water outlet pipe 3. Based on the data provided by the valve temperature detection devices, the flow rate and temperature of the cooling water can be adjusted more accurately to achieve the best cooling effect. This helps to improve cooling efficiency and reduce energy consumption.

[0038] In this embodiment, the smoke exhaust device is preferably a fan.

[0039] In this embodiment, the diameters of the flue gas inlet 6 and the flue gas outlet 7 are the same.

[0040] In this embodiment, the sewage outlet 4 is located below the flue gas outlet 7.

[0041] In this embodiment, the length of the heat conducting rod 8 at one end inside the cooling box 1 is less than the length of the heat conducting rod 8 at one end inside the heat collecting box 11. Since the length of the heat conducting rod 8 inside the heat collecting box 11 is longer, it can absorb and concentrate the heat from the kiln furnace more effectively, making the heat more concentrated at the heat collecting box end, which is beneficial to the subsequent heat exchange process. Inside the cooling box 1, the shorter length of the heat conducting rod 8 means that the contact area with the cooling medium is relatively small, which helps to reduce the heat dissipated to the cooling medium through the heat conducting rod 8 during the heat conduction process, thereby improving the thermal efficiency of the entire system.

[0042] During application, a large amount of flue gas and dust are generated by the high-temperature melting of the mixture inside the tank furnace. After the high-temperature flue gas passes through the flue, it is fully mixed with the urea reducing agent. During this process, the temperature of the flue gas drops to 430°C - 360°C. Then, the flue gas is subjected to denitrification treatment in the SCR denitrification device to remove most of the NOX. Finally, the flue gas enters the cooling and sewage discharge device to be cooled and dedusted, and then passes through the spray tower and the absorption tower to remove dust and reduce the temperature of the flue gas again, and is discharged to the chimney and then to the atmosphere through the fan.

[0043] In the second aspect of this embodiment, a kiln furnace is provided, including a kiln furnace body, and the kiln furnace body uses the cooling and sewage discharge device described above for smoke exhaust and dust removal.

[0044] The above has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A kiln flue gas cooling and sewage discharge device, characterized in that: include: A box body is provided with a cooling box (1) and a heat collecting box (11), wherein the cooling box (1) and the heat collecting box (11) are an integrated structure and are separated by a partition; the cooling box (1) is provided with a water inlet pipe (2) and a water outlet pipe (3); the heat collecting box (11) is provided with a sewage outlet (4), a smoke inlet (6) and a smoke outlet (7); the smoke outlet (7) is connected to a smoke exhaust device; A mounting hole (9) is provided on the partition, a heat conducting rod (8) is provided in the mounting hole (9), and a blade (10) is provided on the outer side of the heat conducting rod (8) located at one end of the heat collecting box (11); A sealing member (5) is arranged on the outside of the heat conducting rod (8) and is located in the mounting hole (9).

2. The cooling sewage discharge device according to claim 1, characterized in that: A plurality of the mounting holes (9) are provided along the longitudinal direction of the partition plate, and a heat conducting rod (8) is provided in each of the plurality of mounting holes (9).

3. The cooling sewage discharge device according to claim 1, characterized in that: The heat conducting rod (8) is welded to the blade (10).

4. The cooling sewage discharge device according to claim 1, characterized in that: The water inlet pipe (2) and the water outlet pipe (3) are both provided with ball valves.

5. The cooling sewage discharge device according to claim 1 or 4, characterized in that: The water inlet pipe (2) and the water outlet pipe (3) are also provided with valve temperature detection devices.

6. The cooling sewage discharge device according to claim 1, characterized in that: The smoke exhaust device is a fan.

7. The cooling sewage discharge device according to claim 1, characterized in that: The diameters of the smoke inlet (6) and the smoke outlet (7) are the same.

8. The cooling sewage discharge device according to claim 1, characterized in that: The sewage outlet (4) is located below the smoke outlet (7).

9. The cooling sewage discharge device according to claim 1, characterized in that: The length of one end of the heat conducting rod (8) located in the cooling box (1) is smaller than the length of one end of the heat conducting rod (8) located in the heat collecting box (11).

10. A kiln, comprising a kiln body, characterized in that: The kiln body adopts the cooling and sewage discharge device described in any one of claims 1 to 9 to discharge smoke.

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