Dry distillation furnace capable of absorbing green electricity

Abstract

The utility model discloses a dry distillation furnace capable of absorbing green electricity. The dry distillation furnace capable of absorbing the green electricity comprises a furnace body used for dry distillation, first electric heating equipment used for absorbing the green electricity and heating air, a combustor used for combusting coal gas to generate high-temperature gas and a fan used for pressurizing the air and then feeding the air into the first electric heating equipment, and the fan is connected with the first electric heating equipment through a pipeline. The first electric heating equipment is connected with the combustor through a pipeline, the combustor is connected with the furnace body, and the combustor is connected with a gas channel; when the first electric heating equipment works, the first electric heating equipment heats air to generate high-temperature gas, or after the first electric heating equipment heats the air, the air and coal gas are fed into the combustor to be combusted to generate high-temperature gas; when the first electric heating equipment does not work, air is fed into the burner through the first electric heating equipment, coal gas is directly fed into the burner, and the burner burns to generate high-temperature gas. The dry distillation furnace capable of absorbing the green electricity can absorb the green electricity and reduce gas consumption.

Description

Technical Field

[0001] This utility model relates to the field of dry distillation technology, and in particular to a dry distillation furnace that can absorb green electricity. Background Technology

[0002] Coal dry distillation is a process of heating and decomposing coal and other materials under air-isolated conditions. The furnace body uses an external heat source to cause complex chemical changes in the materials inside at high temperatures, generating different products. Current furnace dry distillation typically uses high-temperature flue gas as the heat source. This high-temperature flue gas needs to be heated by burning coal gas, either through heating the flue gas or by directly burning coal gas. Both of these heat sources consume large amounts of coal gas, reducing economic efficiency.

[0003] However, green electricity sources such as wind and solar power are intermittent and fluctuate, resulting in low demand for electricity from the grid when green electricity generation is high, and high demand for electricity from the grid when green electricity generation is low, thus causing some green electricity to be wasted. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a dry distillation furnace that can absorb green electricity and reduce gas consumption by utilizing green electricity.

[0005] To address the aforementioned problems, this utility model provides a retort furnace capable of absorbing green electricity. The retort furnace includes a furnace body for retorting, a first electric heating device for absorbing green electricity and heating air, a burner for burning coal gas to generate high-temperature gas, and a fan for pressurizing air and sending it into the first electric heating device. The fan is connected to the first electric heating device via a pipe, the first electric heating device is connected to the burner via a pipe, and the burner is connected to the furnace body. The burner is connected to a coal gas passage. When the first electric heating device is working, it heats the air to generate high-temperature gas, or it heats the air and then sends it along with the coal gas into the burner for combustion to generate high-temperature gas. When the first electric heating device is not working, air is sent into the burner through the first electric heating device, and coal gas is directly sent into the burner, where combustion generates high-temperature gas.

[0006] Furthermore, the first electric heating device is connected to the burner or furnace body via multiple pipes.

[0007] Furthermore, a flow regulating valve for adjusting the flow rate is installed on the pipe between the first electric heating device and the burner.

[0008] Furthermore, there are multiple first electric heating devices, and a flow regulating valve for adjusting the flow rate is provided on the pipeline between the fan and the first electric heating device, or a flow regulating valve for adjusting the flow rate is provided on the pipeline between the first electric heating device and the burner.

[0009] Furthermore, each of the first electric heating devices is connected to a corresponding fan.

[0010] Furthermore, the furnace body is connected to a circulation pipe for collecting the high-temperature gas after dry distillation. The circulation pipe is connected to a fan, and an exhaust pipe for external discharge is installed on the circulation pipe. A valve for controlling circulation is installed on the circulation pipe, and a valve for controlling external discharge is installed on the exhaust pipe; or a three-way valve is installed at the connection between the exhaust pipe and the circulation pipe.

[0011] Furthermore, the fan is also connected to an air supply pipe, and a valve is installed on the air supply pipe.

[0012] Furthermore, the first electric heating device is an electric heating furnace.

[0013] Furthermore, it also includes a second electric heating device, which is located on the gas passage; when the first electric heating device is working, the first electric heating device heats the air, and the second electric heating device heats the gas, and the heated air and gas are sent to the burner for combustion to generate high-temperature gas; when the first electric heating device is not working, the gas is sent to the burner through the first electric heating device, and the gas is sent to the burner through the second electric heating device, and the burner is used for combustion to generate high-temperature gas.

[0014] Furthermore, the second electric heating device is an electric heating furnace.

[0015] In this invention, the high-temperature gas in the carbonization furnace that can absorb green electricity uses electrical energy to raise the gas temperature during peak green electricity supply periods, replacing the method of raising the gas temperature by burning coal gas. This reduces the consumption of coal gas, absorbs excess green electricity, and improves the economic efficiency of the furnace. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a preferred embodiment of the distillation furnace that can absorb green electricity according to this utility model.

[0017] Figure 2 This is a schematic diagram of another preferred embodiment of the distillation furnace that can absorb green electricity according to this utility model.

[0018] Figure 3 This is a schematic diagram of another preferred embodiment of the distillation furnace that can absorb green electricity according to this utility model.

[0019] Figure 4 This is a schematic diagram of another preferred embodiment of the distillation furnace that can absorb green electricity according to this utility model.

[0020] Figure 5 This is a schematic diagram of another preferred embodiment of the distillation furnace that can absorb green electricity according to this utility model.

[0021] Figure 6 This is a schematic diagram of another preferred embodiment of the distillation furnace that can absorb green electricity according to this utility model.

[0022] Figure 7 This is a schematic diagram of another preferred embodiment of the distillation furnace that can absorb green electricity according to this utility model.

[0023] The meanings of the labels in the attached diagram are as follows:

[0024] Furnace body 1, blower 2, first electric heating device 3, burner 4, circulation pipe 51, exhaust pipe 52, make-up gas pipe 53, first valve 61, second valve 62, third valve 63, flow regulating valve 7, second electric heating device 8. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] It should be understood that the furnace body in all embodiments of this utility model is provided with a jacket. The high-temperature gas enters the jacket of the furnace body to heat the furnace body. The high-temperature gas does not come into contact with the coal inside the furnace body. During dry distillation, the temperature of the furnace body is used to dry distill the coal, thereby achieving anaerobic dry distillation.

[0027] Example 1

[0028] like Figure 1As shown, a preferred embodiment of the retort furnace capable of absorbing green electricity according to this utility model includes a furnace body 1, a blower 2, a first electric heating device 3, and a burner 4. The furnace body 1 is used for retorting coal. The first electric heating device 3 is connected to the burner 4 via a pipe, and the first electric heating device 3 heats air by absorbing green electricity. Generally, the first electric heating device 3 is an electric heating furnace, but it can also be other first electric heating devices. It should be noted that the burner 4 is connected to the furnace body 1, and the burner 4 is connected to a gas supply channel for coal gas. When the burner 4 needs to burn, the gas supply channel supplies coal gas, and the air is supplied by the first electric heating device 3. The burner 4 generates high-temperature gas by burning coal gas and sends the high-temperature gas directly into the furnace body 1. The temperature of the high-temperature gas is determined according to the retort temperature required by the furnace body 1. In this embodiment, the retort temperature is taken as 1200℃, so the high-temperature gas generated by the burner 4 is 1200℃. When the first electric heating device 3 is working, i.e., when there is sufficient green electricity, air enters the first electric heating device 3. The first electric heating device 3 consumes green electricity to heat the air, heating it to a certain temperature, and then sends it to the burner 4. The burner 4 burns coal gas and the heated air to form high-temperature gas. When the first electric heating device 3 is not working, i.e., when there is insufficient green electricity, the burner 4 burns coal gas to generate high-temperature gas, which is then sent into the furnace body 1. At this time, air passes through the first heating device and is sent to the burner 4. The first heating device is not working and is only used as a passageway.

[0029] like Figure 2 As shown, in another embodiment, the air can be directly heated to 1200°C using the first electric heating device 3, and then fed into the furnace body 1 through the burner 4. At this time, the burner 4 does not work and is only used as a passage.

[0030] During peak green electricity generation periods, electricity is used to raise the gas temperature instead of using coal gas combustion to raise the gas temperature, thereby reducing coal gas consumption, improving the economic efficiency of the distillation furnace, and absorbing excess green electricity, thus avoiding waste of green electricity.

[0031] Example 2

[0032] like Figure 3 As shown, the difference between this embodiment and Embodiment 1 is that the burner 4 is configured with three layers. The number of layers of burner 4 is adapted to the structure of the furnace body 1, with multiple burners 4 in each layer, and the number of burners 4 in each layer is set according to requirements. The first electric heating device 3 is connected to the burner 4 through three pipes. A flow regulating valve 7 is installed on the pipe between the first electric heating device 3 and the burner 4, which can adjust the flow rate of the corresponding pipe according to requirements, thereby controlling the temperature of the furnace body 1. It should be noted that in other embodiments, the burner 4 can also be connected through three pipes.

[0033] Example 3

[0034] like Figure 4 As shown, in another embodiment, each layer of burner 4 can be connected to a first electric heating device 3, thereby reducing the power requirement of the first electric heating device 3 and reducing costs; of course, more first electric heating devices 3 can be connected, and the more first electric heating devices 3 there are, the lower the power requirement of the first electric heating device 3.

[0035] Example 4

[0036] like Figure 5 As shown, each first electric heating device 3 can also be connected to a fan 2, thereby reducing the power requirement of the fan 2 and reducing costs.

[0037] Example 5

[0038] like Figure 6 As shown, this embodiment differs from Embodiment 1 in that the furnace body 1 is connected to a circulation pipe 51 for collecting air. The circulation pipe 51 is connected to a fan 2. A first valve 61 is installed on a waste gas pipe 52 for external discharge, and a second valve 62 is installed on the circulation pipe 51 for controlling circulation. When the first electric heating device 3 is heating, the first valve 61 is closed and the second valve 62 is open, ensuring that the air can be circulated for heating. When the first electric heating device 3 is not heating, the first valve 61 is open and the second valve 62 is closed, ensuring that the exhaust gas from the burner 4 can be discharged for treatment. In another embodiment, a three-way valve can be installed at the connection between the waste gas pipe 52 and the circulation pipe to replace the first valve 61 and the second valve 62. The circulation pipe 51 is connected to an air supply pipe 53. The air supply pipe 53 is equipped with a third valve 63 for controlling the opening and closing of the air supply pipe 53. When the first electric heating device 3 needs to replenish air during the heating process, the third valve 63 is opened to allow outside air to enter the fan 2 through the air supply pipe 53 to ensure sufficient air.

[0039] It should be understood that this embodiment is also applicable to Embodiments 2, 3 and 4.

[0040] Example 6

[0041] like Figure 7As shown, the retort furnace capable of absorbing green electricity in this embodiment includes a furnace body 1, a blower 2, a first electric heating device 3, a second electric heating device 8, and a burner 4. The furnace body 1 is used for coal retorting. The first electric heating device 3 is connected to the burner 4 via a pipe, and the first electric heating device 3 heats air by absorbing green electricity. The burner 4 is connected to the furnace body 1, and the burner 4 is connected to a gas channel for supplying coal gas. The second electric heating device 8 is located on the gas channel and heats the coal gas. When the burner 4 needs to burn, the gas channel supplies coal gas, and the air is supplied by the first electric heating device 3. The burner 4 generates high-temperature gas by burning the coal gas and directly sends the high-temperature gas into the furnace body 1. The temperature of the high-temperature gas is determined according to the required retorting temperature of the furnace body 1. In this embodiment, the retorting temperature is taken as 1200℃, so the high-temperature gas generated by the burner 4 is 1200℃. When the first electric heating device 3 is working, i.e., when green electricity is sufficient, air enters the first electric heating device 3, which consumes green electricity to heat the air. The second electric heating device 8 consumes green electricity to heat the gas. The heated gas and air are then sent to the burner 4, where the burner 4 burns the heated gas and air to form a high-temperature gas. When the first electric heating device 3 is not working, i.e., when green electricity is insufficient, the burner 4 burns the gas to generate a high-temperature gas, which is then sent to the furnace body 1. At this time, air passes through the first heating device and is sent to the burner 4, while gas passes through the second heating device 8 and is sent to the burner 4. Both the first and second heating devices 8 are not working and are only used as passageways. Typically, the first electric heating device 3 and the second electric heating device 8 are electric heating furnaces, but other types of first electric heating devices are also possible.

[0042] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, whether directly or indirectly applied to other related technical fields, shall also be within the patent protection scope of this utility model.

Claims

1. A dry distillation furnace capable of consuming green electricity, characterized in that: The system includes a furnace body for dry distillation, a first electric heating device for absorbing green electricity and heating air, a burner for burning coal gas to generate high-temperature gas, and a fan for pressurizing air and sending it into the first electric heating device. The fan is connected to the first electric heating device via a pipe, the first electric heating device is connected to the burner via a pipe, the burner is connected to the furnace body, and the burner is connected to a coal gas passage. When the first electric heating device is working, it heats the air to generate high-temperature gas, or it heats the air and then sends it to the burner along with the coal gas for combustion to generate high-temperature gas. When the first electric heating device is not working, air is sent to the burner through the first electric heating device, and coal gas is directly sent to the burner for combustion to generate high-temperature gas.

2. The dry distillation furnace capable of absorbing green electricity as described in claim 1, characterized in that: The first electric heating device is connected to the burner or furnace body through multiple pipes.

3. The dry distillation furnace capable of absorbing green electricity as described in claim 2, characterized in that: A flow regulating valve for adjusting the flow rate is installed on the pipeline between the first electric heating device and the burner.

4. The dry distillation furnace capable of absorbing green electricity as described in claim 1, characterized in that: There are multiple first electric heating devices, and a flow regulating valve for adjusting the flow rate is provided on the pipeline between the fan and the first electric heating device, or a flow regulating valve for adjusting the flow rate is provided on the pipeline between the first electric heating device and the burner.

5. The dry distillation furnace capable of absorbing green electricity as described in claim 4, characterized in that: Each of the first electric heating devices is connected to a corresponding fan.

6. The dry distillation furnace capable of absorbing green electricity as described in any one of claims 2 to 5, characterized in that: The furnace body is connected to a circulation pipe for collecting the high-temperature gas after dry distillation. The circulation pipe is connected to a fan, and an exhaust pipe for external discharge is installed on the circulation pipe. A valve for controlling circulation is installed on the circulation pipe, and a valve for controlling external discharge is installed on the exhaust pipe; or a three-way valve is installed at the connection between the exhaust pipe and the circulation pipe.

7. The dry distillation furnace capable of absorbing green electricity as described in claim 6, characterized in that: The fan is also connected to an air supply pipe, and a valve is installed on the air supply pipe.

8. The dry distillation furnace capable of absorbing green electricity as described in claim 1, characterized in that: The first electric heating device is an electric heating furnace.

9. The dry distillation furnace capable of absorbing green electricity as described in claim 1, characterized in that: It also includes a second electric heating device, which is located on the gas passage; when the first electric heating device is working, the first electric heating device heats the air, and the second electric heating device heats the gas, and the heated air and gas are sent to the burner for combustion to generate high-temperature gas; when the first electric heating device is not working, the gas is sent to the burner through the first electric heating device, and the gas is sent to the burner through the second electric heating device, and the burner is used for combustion to generate high-temperature gas.

10. The dry distillation furnace capable of absorbing green electricity as described in claim 9, characterized in that: The first and second electric heating devices are electric heating furnaces.

Images