Flue gas and water vapor dual-switching activated carbon activation system
The flue gas and water vapor dual-switch activated carbon activation system addresses resource waste and high costs by preheating water for the steam boiler, optimizing resource utilization and reducing power consumption through an exchange tank design with baffles and a spiral inlet pipe.
Patent Information
- Application Number
- CN202420340560.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-02-23
AI Technical Summary
The direct discharge of high-temperature flue gas from activated carbon production results in resource waste and increased production costs due to low utilization of flue gas and inefficient energy consumption.
A flue gas and water vapor dual-switch activated carbon activation system that utilizes an exchange tank to preheat water for the steam boiler using flue gas, with baffles and a spiral water inlet pipe to extend residence time, and includes a one-way valve and heat-insulating layer to optimize resource utilization and reduce power consumption.
The system enhances resource utilization by preheating water for the steam boiler, reducing power consumption and production costs while improving the efficiency of flue gas utilization.
Smart Images
Figure CN222181826U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of activated carbon production equipment, and more specifically, to a flue gas and water vapor dual-switch activated carbon activation system. Background Art
[0002] Activated carbon is made from carbon-containing raw materials such as wood, coal and petroleum coke through pyrolysis and activation processes. It has a developed pore structure, a large specific surface area and rich surface chemical groups. In the production process of activated carbon, water needs to be heated to generate water vapor for the activation of activated carbon. Activated carbon produces flue gas in the process of activation, and the flue gas is discharged after treatment. However, the flue gas will carry a higher temperature when it is discharged from the activation furnace. Direct discharge after combustion will cause waste of resources. Such treatment methods will lead to low resource utilization, waste of resources, increased production costs and other problems. Utility Model Content
[0003] The utility model provides a flue gas and water vapor dual-switch activated carbon activation system, which introduces the flue gas of the activation furnace into the exchange tank by arranging an exchange tank, preheats the water entering the steam boiler, and then passes the flue gas into the combustion chamber of the steam boiler, thereby solving the problems of low utilization rate of the flue gas of the activation furnace, waste of resources, increase in production costs, etc.
[0004] The utility model is realized through the following technical solutions.
[0005] A flue gas and water vapor dual-switch activated carbon activation system comprises: an exchange tank for collecting and utilizing flue gas, an activation furnace is arranged on one side of the exchange tank, the smoke exhaust port of the activation furnace is connected to the exchange tank through a pipeline, a steam boiler for providing steam to the activation furnace is arranged between the exchange tank and the activation furnace, and the exchange tank and the steam boiler are connected through a pipeline; the exchange tank comprises: a water inlet, an air inlet, a water outlet and an air outlet are fixedly arranged on the shell of the exchange tank, a water inlet pipe is fixedly connected between the water inlet and the water outlet, the water inlet pipe is arranged in a spiral coil, the water outlet is connected to the water inlet end of the steam boiler through a pipeline, the air inlet is connected to the smoke exhaust port through a pipeline, and the air outlet is connected to the combustion furnace of the steam boiler through a pipeline; a baffle, the baffle is fixedly arranged on the inner wall of the exchange tank, and the water inlet pipe is fixedly connected to the baffle.
[0006] The flue gas is introduced into the exchange tank, and the water inlet of the steam boiler is connected to the water inlet pipe. When adding water to the steam boiler, the flue gas can preheat the water. The water inlet pipe is set as a spiral coil, which can slow down the speed of the water flow and increase its preheating time in the exchange tank. The function of the baffle is to allow the flue gas to diffuse along the S shape, slow down the speed of flue gas diffusion, increase the time the flue gas stays in the exchange tank, and increase the preheating time for the water. After passing through the exchange tank, the flue gas enters the steam boiler to assist combustion of the steam boiler, reduce resource waste, and reduce production costs.
[0007] In a further technical solution, in order to slow down the flow speed of the smoke, the baffles are staggeredly arranged on the inner wall of the exchange tank along the flow direction of the smoke, and the baffles are semicircular.
[0008] The function of the baffle is to allow the smoke to diffuse along an S shape, slow down the speed of smoke diffusion, increase the time the smoke stays in the exchange tank, and increase the time for preheating the water.
[0009] Furthermore, in order to facilitate the control of the amount of water entering the steam boiler, a one-way valve is provided at the water outlet of the exchange tank.
[0010] By controlling the switch of the one-way valve, the water preheating time in the water inlet pipe can be controlled.
[0011] Furthermore, in order to prevent the heat loss of the flue gas in the exchange tank, the shell of the exchange tank is provided with a heat-insulating layer.
[0012] Furthermore, in order to control the flow of steam, a control valve is provided between the steam boiler and the activation furnace.
[0013] The technical effects of the utility model are:
[0014] The present application introduces the flue gas of the activation furnace into the exchange tank by setting an exchange tank, preheats the water entering the steam boiler, and the flue gas enters the steam boiler after passing through the exchange tank, thereby assisting the combustion of the steam boiler, reducing the power consumption of the steam boiler, reducing resource waste, and reducing production costs; a baffle plate and a spiral water inlet pipe are set in the exchange tank to increase the residence time of the flue gas and water in the exchange tank, thereby lengthening the time for the flue gas to preheat the water, thereby improving resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 It is a schematic diagram of the exchange tank of the utility model;
[0017] Figure 3 This is a schematic diagram of the internal structure of the exchange tank of the utility model;
[0018] In the figure: 1. Activation furnace; 2. Exchange tank; 3. Smoke exhaust port; 4. Baffle; 5. Steam boiler; 6. Shell; 7. Water inlet; 8. Air inlet; 9. Water outlet; 10. Air outlet; 11. Water inlet pipe; 12. One-way valve; 13. Insulation layer; 14. Control valve; 15. Water pump; 16. Exhaust gas treatment equipment. DETAILED DESCRIPTION
[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other technical solutions can be obtained based on the provided drawings without paying creative work.
[0020] Example 1
[0021] Combination Figure 1 to Figure 3 The utility model is a flue gas and water vapor dual-switch activated carbon activation system, comprising: an exchange tank 2 for collecting and utilizing flue gas, an activation furnace 1 is arranged on one side of the exchange tank 2, a smoke exhaust port 3 of the activation furnace 1 is connected to the exchange tank 2 through a pipeline, a steam boiler 5 for providing steam to the activation furnace 1 is arranged between the exchange tank 2 and the activation furnace 1, and the exchange tank 2 and the steam boiler 5 are connected through a pipeline; the exchange tank 2 comprises: a water inlet 7, an air inlet 8, a water outlet 9 and an air outlet 10 are fixedly arranged on a shell 6 of the exchange tank 2 A water inlet pipe 11 is fixedly connected between the water inlet 7 and the water outlet 9, and the water inlet pipe 11 is arranged as a spiral coil. The water outlet 9 is connected to the water inlet end of the steam boiler 5 through a pipe, the air inlet 8 is connected to the smoke exhaust port 3 through a pipe, and the air outlet 10 is connected to the combustion furnace of the steam boiler 5 through a pipe; the baffle 4 is fixedly arranged on the inner wall of the exchange tank 2, the water inlet pipe 11 is fixedly connected to the baffle 4, the baffle 4 is staggeredly arranged on the inner wall of the exchange tank 2 along the direction of smoke flow, and the baffle 4 is semicircular.
[0022] During the implementation process, the high-temperature flue gas generated by the activation furnace 1 is discharged from the exhaust port 3 through the pipeline and enters the exchange tank 2 from the air inlet 8. When water is added to the steam boiler 5, the water pump 15 transports the water to the water inlet 7 of the exchange tank 2, and then the water enters the water inlet pipe 11 due to gravity. The high-temperature flue gas preheats the water in the water inlet pipe 11, which can reduce the power consumption of the steam boiler 5. The water inlet pipe 11 is set as a spiral coil, which can slow down the speed of the water flow and increase its preheating time in the exchange tank 2. The baffles 4 are staggered in the exchange tank 2 along the flue gas flow direction. The inner wall is designed to allow the flue gas to diffuse along an S shape, slow down the speed of flue gas diffusion, increase the time the flue gas stays in the exchange tank 2, increase the time for preheating the water supply, and improve resource utilization. After the flue gas comes out of the air outlet 10 of the exchange tank 2, it enters the combustion chamber of the steam boiler 5. The flue gas contains combustion-supporting gas, which further reduces the power consumption of the steam boiler 5. The steam generated by the steam boiler 5 is supplied to the activation furnace 1 for activated carbon activation. The flue gas after combustion in the steam boiler 5 is transported to the exhaust gas treatment equipment 16 for treatment and can be discharged after the treatment is completed.
[0023] Example 2
[0024] On the basis of the first embodiment, a one-way valve 12 is provided at the water outlet 9 of the exchange tank 2 , a heat-insulating layer 13 is provided on the shell 6 of the exchange tank 2 , and a control valve 14 is provided between the steam boiler 5 and the activation furnace 1 .
[0025] During the implementation process, a one-way valve 12 is provided at the water outlet 9 of the exchange tank 2. Closing the one-way valve can increase the water residence time in the water inlet pipe and the preheating time. When water needs to be added to the steam boiler, the one-way valve can be opened. The shell 6 of the exchange tank 2 is provided with an insulation layer 13. In order to prevent the heat loss of the flue gas in the exchange tank, a control valve 14 is provided between the steam boiler 5 and the activation furnace 1. By operating the control valve 14, the flow rate and on-off of the steam delivered by the steam boiler 5 to the activation furnace 1 can be controlled.
[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. A flue gas and water vapor dual-switch activated carbon activation system, characterized in that: include: An exchange tank (2) for collecting and utilizing flue gas, an activation furnace (1) is arranged on one side of the exchange tank (2), a smoke exhaust port (3) of the activation furnace (1) is connected to the exchange tank (2) via a pipeline, a steam boiler (5) for supplying steam to the activation furnace (1) is arranged between the exchange tank (2) and the activation furnace (1), and the exchange tank (2) and the steam boiler (5) are connected via a pipeline; the exchange tank (2) comprises: a water inlet (7), an air inlet (8), a water outlet (9) and a A water inlet pipe (11) is fixedly connected between the air outlet (10), the water inlet (7) and the water outlet (9), the water inlet pipe (11) is arranged as a spiral coil, the water outlet (9) is connected to the water inlet end of the steam boiler (5) through a pipeline, the air inlet (8) is connected to the smoke exhaust port (3) through a pipeline, and the air outlet (10) is connected to the combustion furnace of the steam boiler (5) through a pipeline; a baffle (4), the baffle (4) is fixedly arranged on the inner wall of the exchange tank (2), and the water inlet pipe (11) is fixedly connected to the baffle (4).
2. The flue gas and water vapor dual-switch activated carbon activation system according to claim 1, characterized in that: The baffle plates (4) are staggeredly arranged on the inner wall of the exchange tank (2) along the flow direction of the smoke, and the baffle plates (4) are semicircular.
3. The flue gas and water vapor dual-switch activated carbon activation system according to claim 1, characterized in that: A one-way valve (12) is provided at the water outlet (9) of the exchange tank (2).
4. The flue gas and water vapor dual-switch activated carbon activation system according to claim 1, characterized in that: The shell (6) of the exchange tank (2) is provided with a heat-insulating layer (13).
5. The flue gas and water vapor dual-switch activated carbon activation system according to claim 1, characterized in that: A control valve (14) is provided between the steam boiler (5) and the activation furnace (1).