Carbonization furnace heat energy recycling system

Abstract

The utility model relates to a carbonization furnace heat energy recycling system which comprises a carbonization furnace and a flue gas circulating pipe, a gas inlet of the flue gas circulating pipe is communicated with a carbonization chamber of the carbonization furnace, a gas outlet of the flue gas circulating pipe is communicated with a combustion chamber of the carbonization furnace, the outer side wall of the flue gas circulating pipe is fixedly connected with a gas outlet pipe, and the output end of the gas outlet pipe is connected with a desulfurizing tower. A blocking plate is slidably connected to the inner side wall of the gas outlet pipe in a sealed mode, a cavity is formed in the blocking plate, and communicating holes are formed in the top of the blocking plate and the side wall of the side, facing the feeding port of the flue gas circulating pipe, of the blocking plate. The flue gas circulating device has the advantages that the speed of flue gas entering the gas outlet pipe is increased, the pressure in the device is rapidly reduced, and the time that the blocking plate is located in the flue gas circulating pipe is shortened, so that a worker can conveniently control the blocking plate to return to the gas outlet pipe, and the flue gas can enter the gas outlet pipe again through the gas inlet of the flue gas circulating pipe; and the flue gas enters a combustion chamber of the carbonization furnace through a gas outlet of the flue gas circulating pipe, so that the recovery efficiency of the heat energy of the tail gas is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy sources, in particular to a carbonization furnace heat energy recycling system. Background Art

[0002] Previous carbonization furnaces generate a large amount of flue gas during the carbonization process. This flue gas is discharged into the atmosphere, polluting the environment and wasting resources. To address this technical issue, the prior art provides a carbonization furnace device (CN215517254U) that fully recycles flue gas. This device allows the carbonization furnace to recover combustible gases such as carbon monoxide and methane from the flue gas, purifying them and then recycling them for energy. This is both environmentally friendly and self-sufficient, improving carbonization efficiency and economic efficiency, and reducing production costs and environmental pollution.

[0003] However, there may be certain technical problems during its use. For example, when the flue gas pressure in the device reaches the set value, the pressure controller will control the electric control valve to open, and desulfurize the flue gas through the desulfurization tower to reduce the pressure. However, because there are two branches in the device, when the electric control valve is opened, the flue gas in the device may enter the desulfurization tower from the two branches under the action of pressure. However, this also disperses the pressure in the device, thereby reducing the speed at which the flue gas enters the outlet pipe, making it impossible to quickly drop the pressure in the device, thereby affecting the recovery of exhaust heat energy. Utility Model Content

[0004] In response to the deficiencies in the prior art, the utility model provides a carbonization furnace heat energy recycling system which accelerates the speed at which flue gas enters the exhaust pipe, quickly reduces the pressure in the device, and shortens the time that the blocking plate is located in the flue gas circulation pipe, thereby making it easier for staff to control the blocking plate to return to the exhaust pipe, so that the flue gas can enter again through the air inlet of the flue gas circulation pipe and enter the combustion chamber of the carbonization furnace through the air outlet of the flue gas circulation pipe, thereby improving the recovery efficiency of the exhaust gas heat energy.

[0005] The utility model is realized through the following technical scheme, which provides a carbonization furnace heat energy recycling system, including a carbonization furnace and a flue gas circulation pipe installed on the top of the carbonization furnace, the air inlet of the flue gas circulation pipe is connected to the carbonization chamber of the carbonization furnace, the air outlet of the flue gas circulation pipe is connected to the combustion chamber of the carbonization furnace, an air outlet pipe is fixedly connected to the outer wall of the flue gas circulation pipe, the output end of the air outlet pipe is connected to a desulfurization tower, a blocking plate is sealed and slidably connected to the inner wall of the air outlet pipe, a cavity is opened in the blocking plate, and connecting holes that are connected to the interior of the cavity are opened on the top of the blocking plate and the side wall of the blocking plate facing the feed inlet of the flue gas circulation pipe.

[0006] In the process of use, the utility model provides a carbonization furnace and a flue gas circulation pipe installed on the top of the carbonization furnace, so that the air inlet of the flue gas circulation pipe is connected with the carbonization chamber of the carbonization furnace, and the air outlet of the flue gas circulation pipe is connected with the combustion chamber of the carbonization furnace. An air outlet pipe is fixedly connected to the outer wall of the flue gas circulation pipe, and the output end of the air outlet pipe is connected to the desulfurization tower. A blocking plate is sealingly and slidingly connected on the inner wall of the air outlet pipe, and a cavity is opened in the blocking plate. There are also two blocking plates on the top of the blocking plate and on the side wall of the blocking plate facing the feed inlet of the flue gas circulation pipe. The connecting hole communicated with the interior of the cavity, when the device is in use, the carbonized raw materials must be placed in the carbonization furnace first, and the carbonization furnace is used to make it into a carbonized finished product. The flue gas generated in this process will enter through the air inlet of the flue gas circulation pipe, and re-enter the combustion chamber of the carbonization furnace through the air outlet of the flue gas circulation pipe to burn and generate heat energy, so as to recycle the tail gas. At this time, the blocking plate is located in the outlet pipe, and the flue gas will not enter the desulfurization tower through the outlet pipe, and will be discharged from the desulfurization tower to the outside. When the device is in When the flue gas pressure reaches a certain value, the blocking plate is controlled to move in the outlet pipe, so that the blocking plate enters the flue gas circulation pipe and contacts the inner wall of the flue gas circulation pipe, thereby sealing the flue gas circulation pipe, so that the flue gas can no longer enter through the air inlet of the flue gas circulation pipe and re-enter the combustion chamber of the carbonization furnace through the air outlet of the flue gas circulation pipe. It can only enter the outlet pipe through the connecting hole and the cavity, and enter the desulfurization tower from the outlet pipe, and be discharged to the outside after desulfurization in the desulfurization tower. This can ensure that the flue gas is under pressure. Under the action of the baffle, the flue gas can only enter from the air inlet of the flue gas circulation pipe, and will not enter the air inlet and air outlet of the flue gas circulation pipe at the same time under the action of pressure, thereby accelerating the speed of flue gas entering into the air outlet pipe, quickly reducing the pressure in the device, shortening the time that the baffle is in the flue gas circulation pipe, making it convenient for the staff to control the baffle back into the air outlet pipe, so that the flue gas can enter again through the air inlet of the flue gas circulation pipe, and enter the combustion chamber of the carbonization furnace through the air outlet of the flue gas circulation pipe, thereby improving the recovery efficiency of exhaust gas heat energy.

[0007] Preferably, a cylinder is fixedly mounted on the outer wall of the flue gas circulation pipe, and the output shaft of the cylinder is fixedly connected to the bottom of the blocking plate, and the output shaft of the cylinder is in sealing and sliding connection with the flue gas circulation pipe. A cylinder is fixedly mounted on the outer wall of the flue gas circulation pipe, and the output shaft of the cylinder is fixedly connected to the bottom of the blocking plate, and the output shaft of the cylinder is in sealing and sliding connection with the flue gas circulation pipe. The use of the cylinder can facilitate the staff to drive the blocking plate to move while sealing the flue gas circulation pipe from the outside world.

[0008] Preferably, a rubber pad is fixedly connected to the outer peripheral surface of the blocking plate. By fixing the rubber pad to the outer peripheral surface of the blocking plate, the rubber pad can improve the sealing effect of the blocking plate on the smoke circulation pipe and the exhaust pipe when in use.

[0009] Preferably, a pressure sensor is installed on the carbonization furnace, and the pressure sensor is electrically connected to the cylinder. By installing the pressure sensor on the carbonization furnace and electrically connecting the pressure sensor to the cylinder, when the pressure in the device reaches a set value, the pressure sensor can send an electrical signal to the cylinder to control the output shaft of the cylinder to retract, thereby sealing the flue gas circulation pipe. When the pressure in the device drops to a certain value, the pressure sensor can send an electrical signal to the cylinder to control the output shaft of the cylinder to extend, thereby sealing the exhaust pipe.

[0010] Preferably, the cross section of the air outlet pipe is set to be rectangular. By setting the cross section of the air outlet pipe to be rectangular, it is convenient for the staff to drive the blocking plate to move.

[0011] The beneficial effects of the utility model are as follows: by arranging a carbonization furnace and a flue gas circulation pipe installed on the top of the carbonization furnace, the air inlet of the flue gas circulation pipe is connected to the carbonization chamber of the carbonization furnace, and the air outlet of the flue gas circulation pipe is connected to the combustion chamber of the carbonization furnace, an air outlet pipe is fixedly connected to the outer wall of the flue gas circulation pipe, the output end of the air outlet pipe is connected to the desulfurization tower, a blocking plate is sealingly and slidingly connected on the inner wall of the air outlet pipe, a cavity is opened in the blocking plate, and a blocking plate is opened on the top of the blocking plate and on the side wall of the blocking plate facing the feed inlet of the flue gas circulation pipe. The connecting hole communicated with the interior of the cavity, when the device is in use, the carbonized raw materials must be placed in the carbonization furnace first, and the carbonization furnace is used to make it into a carbonized finished product. The flue gas generated in this process will enter through the air inlet of the flue gas circulation pipe, and re-enter the combustion chamber of the carbonization furnace through the air outlet of the flue gas circulation pipe to burn and generate heat energy, so as to recycle the tail gas. At this time, the blocking plate is located in the outlet pipe, and the flue gas will not enter the desulfurization tower through the outlet pipe, and will be discharged from the desulfurization tower to the outside. When the device is in When the flue gas pressure reaches a certain value, the blocking plate is controlled to move in the outlet pipe, so that the blocking plate enters the flue gas circulation pipe and contacts the inner wall of the flue gas circulation pipe, thereby sealing the flue gas circulation pipe, so that the flue gas can no longer enter through the air inlet of the flue gas circulation pipe and re-enter the combustion chamber of the carbonization furnace through the air outlet of the flue gas circulation pipe. It can only enter the outlet pipe through the connecting hole and the cavity, and enter the desulfurization tower from the outlet pipe, and be discharged to the outside after desulfurization in the desulfurization tower. This can ensure that the flue gas is under pressure. Under the action of the baffle, the flue gas can only enter from the air inlet of the flue gas circulation pipe, and will not enter the air inlet and air outlet of the flue gas circulation pipe at the same time under the action of pressure, thereby accelerating the speed of flue gas entering into the air outlet pipe, quickly reducing the pressure in the device, shortening the time that the baffle is in the flue gas circulation pipe, making it convenient for the staff to control the baffle back into the air outlet pipe, so that the flue gas can enter again through the air inlet of the flue gas circulation pipe, and enter the combustion chamber of the carbonization furnace through the air outlet of the flue gas circulation pipe, thereby improving the recovery efficiency of exhaust gas heat energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1This is a schematic diagram of the structure of the utility model;

[0013] Figure 2 for Figure 1 aa structural cross-sectional view;

[0014] Figure 3 for Figure 2 Structural perspective drawing;

[0015] Figure 4 for Figure 1 A structural perspective view of part A;

[0016] Figure 5 for Figure 1 A top view of the structure of part A in the middle;

[0017] As shown in the figure:

[0018] 1. Cylinder, 2. Flue gas circulation pipe, 3. Pressure sensor, 4. Carbonization furnace, 5. Exhaust pipe, 6. Blocking plate, 7. Cavity, 8. Connecting hole, 9. Rubber pad. DETAILED DESCRIPTION

[0019] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.

[0020] like Figure 1-Figure 5 The heat energy recycling system of the carbonization furnace 4 of the utility model shown includes a carbonization furnace 4 and a flue gas circulation pipe 2 installed on the top of the carbonization furnace 4, the air inlet of the flue gas circulation pipe 2 is connected to the carbonization chamber of the carbonization furnace 4, and the air outlet of the flue gas circulation pipe 2 is connected to the combustion chamber of the carbonization furnace 4. An outlet pipe 5 is fixedly connected to the outer wall of the flue gas circulation pipe 2, and the output end of the outlet pipe 5 is connected to a desulfurization tower. A blocking plate is sealed and slidably connected on the inner wall of the outlet pipe 5, and a cavity 7 is opened in the blocking plate 6. A connecting hole 8 that is connected to the inside of the cavity 7 is opened on the top of the blocking plate 6 and the side wall of the blocking plate 6 facing the feed port of the flue gas circulation pipe 2.

[0021] A cylinder 1 is also fixedly mounted on the outer wall of the flue gas circulation pipe 2. The output shaft of cylinder 1 is fixedly connected to the bottom of the baffle 6, forming a sealed, sliding connection with the flue gas circulation pipe 2. This facilitates the movement of the baffle 6 while simultaneously sealing the flue gas circulation pipe 2 from the outside world. A rubber pad 9 is fixedly attached to the outer circumference of the baffle 6, enhancing its sealing effect on the flue gas circulation pipe 2 and the outlet pipe 5 during use. A pressure sensor 3 is mounted on the carbonization furnace 4 and electrically connected to the cylinder 1. When the pressure inside the device reaches a set value, the pressure sensor 3 sends an electrical signal to the cylinder 1, causing the output shaft of the cylinder 1 to retract, sealing the flue gas circulation pipe 2. When the pressure inside the device drops to a certain value, the pressure sensor sends another electrical signal to the cylinder 1, causing the output shaft of the cylinder 1 to extend, sealing the outlet pipe 5. The rectangular cross-section of the outlet pipe 5 facilitates the movement of the baffle 6.

[0022] Combined with attachment Figure 1-5 It can be seen that the method of using the present invention is as follows: first, the carbonized raw material needs to be placed in the carbonization furnace 4, and the carbonization furnace 4 is used to make it into a carbonized finished product. The flue gas generated in this process will enter through the air inlet of the flue gas circulation pipe 2, and re-enter the combustion chamber of the carbonization furnace 4 through the air outlet of the flue gas circulation pipe 2 to burn and generate heat energy, so as to recycle the tail gas. At this time, because the blocking plate 6 is located in the outlet pipe 5, the flue gas will not enter the desulfurization tower through the outlet pipe 5, and will be discharged from the desulfurization tower to the outside. When the flue gas pressure in the device reaches a certain value, the pressure sensor 3 will send an electrical signal to the cylinder 1 to control the output shaft of the cylinder 1 to retract, thereby driving the blocking plate 6 to move in the outlet pipe 5, so that the flue gas entering the flue gas circulation pipe 2, and make the rubber pad 9 on the blocking plate 6 contact the inner wall of the flue gas circulation pipe 2, thereby sealing the flue gas circulation pipe 2, so that the flue gas can no longer enter through the air inlet of the flue gas circulation pipe 2, and re-enter the combustion chamber of the carbonization furnace 4 through the air outlet of the flue gas circulation pipe 2, and can only enter the outlet pipe 5 through the connecting hole 8 and the cavity 7, and enter the desulfurization tower from the outlet pipe 5, and be discharged to the outside after desulfurization in the desulfurization tower, so as to reduce the pressure in the device. When the pressure sensor 3 detects that the pressure in the device reaches a certain value, it will send an electrical signal to the cylinder 1 again, driving the blocking plate 6 back to the outlet pipe 5, so that the flue gas can enter through the air inlet of the flue gas circulation pipe 2 again, and enter the combustion chamber of the carbonization furnace 4 through the air outlet of the flue gas circulation pipe 2.

[0023] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A carbonization furnace heat energy recycling system, comprising a carbonization furnace (4) and a flue gas circulation pipe (2) installed on the top of the carbonization furnace (4), characterized in that: The air inlet of the flue gas circulation pipe (2) is connected to the carbonization chamber of the carbonization furnace (4), and the air outlet of the flue gas circulation pipe (2) is connected to the combustion chamber of the carbonization furnace (4). An air outlet pipe (5) is fixedly connected to the outer wall of the flue gas circulation pipe (2), and the output end of the air outlet pipe (5) is connected to a desulfurization tower. A blocking plate is sealed and slidably connected to the inner wall of the air outlet pipe (5), and a cavity (7) is opened in the blocking plate (6). A connecting hole (8) that is connected to the interior of the cavity (7) is opened on the top of the blocking plate (6) and the side wall of the blocking plate (6) facing the feed inlet of the flue gas circulation pipe (2).

2. The carbonization furnace heat energy recycling system according to claim 1, characterized in that: A cylinder (1) is also fixedly mounted on the outer wall of the flue gas circulation pipe (2); the output shaft of the cylinder (1) is fixedly connected to the bottom of the blocking plate (6); and the output shaft of the cylinder (1) is in sealing and sliding connection with the flue gas circulation pipe (2).

3. The carbonization furnace heat energy recycling system according to claim 1, characterized in that: A rubber pad (9) is fixedly connected to the outer peripheral surface of the blocking plate (6).

4. The carbonization furnace heat energy recycling system according to claim 2, characterized in that: A pressure sensor (3) is installed on the carbonization furnace (4), and the pressure sensor (3) is electrically connected to the cylinder (1).

5. The carbonization furnace heat energy recycling system according to claim 1, characterized in that: The cross section of the air outlet pipe (5) is configured to be rectangular.

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