Low-temperature carbonization furnace

Abstract

The utility model relates to a low-temperature carbonization furnace, which belongs to the technical field of low-temperature carbonization and comprises a carbonization furnace body, a material passing pipe is fixed on the inner side of the left side wall of the carbonization furnace body, the outer side of the material passing pipe is communicated with a feeding pipe, the right side of the material passing pipe is rotatably connected with a hearth through a bearing, and a treatment box is arranged on the right side of the carbonization furnace body. A purification mechanism for purifying exhausted waste gas is arranged on the treatment box, and a conveying mechanism for conveying materials is arranged on the material passing pipe. According to the low-temperature carbonization furnace, through cooperation of a communicating pipe, waste gas generated after low-temperature carbonization can be introduced into a treatment box so as to be treated, through cooperation of a water pump, water at the bottom of the treatment box can be pumped into a water inlet pipe and is introduced into a spraying pipe through a water outlet pipe, and through cooperation of a nozzle, the waste gas can be treated conveniently. And water can be sprayed out in a water mist form, so that the waste gas is cooled, particulate matters in the waste gas are settled, and the environment is prevented from being damaged by the high-temperature waste gas.

Description

Technical Field

[0001] The utility model relates to the technical field of low-temperature carbonization, in particular to a low-temperature carbonization furnace. Background Art

[0002] The low-temperature carbonization furnace is a new type of carbonization technology equipment based on gasification and cracking technology for the treatment of combustible solid waste. Its basic working principle is to pass a small amount of magnetized air into the carbonization furnace to thermally decompose the combustible solid waste being treated, and then use the generated heat to continuously carbonize the solid waste.

[0003] For example, a low-temperature carbonization furnace is disclosed in the Chinese utility model patent publication number (CN220550272U), which includes two waste discharge pipe bodies, a metal muffle and two waste discharge pipe connecting parts. The two waste discharge pipe bodies are detachably connected to the two ends of the waste discharge metal muffle through the waste discharge pipe connecting parts respectively, and the waste discharge pipe connecting parts are configured to enable the waste discharge pipe body to be detachably installed on the metal muffle of the low-temperature carbonization furnace. This utility model solves the problem that the working temperature of the waste discharge pipe of the current low-temperature carbonization furnace for carbon fiber production is generally much lower than the temperature of the furnace body of the low-temperature carbonization furnace, and tar and other wastes in a high temperature state are easy to condense and accumulate at the waste discharge pipe mouth when passing through the waste discharge pipe with a lower temperature. The waste discharge pipe is welded on the metal muffle and cannot be cleaned or replaced, resulting in low waste discharge efficiency, which seriously affects the production of continuous high-quality carbon fiber. However, the temperature of the exhaust gas generated during the low-temperature carbonization process is relatively high, and the patent cannot cool and precipitate the exhaust gas, resulting in the exhaust gas causing harm to the external environment, affecting practicality. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a low-temperature carbonization furnace, which has the advantage of quickly purifying the exhaust gas generated after low-temperature carbonization, thereby solving the problem that the exhaust gas generated during the low-temperature carbonization process has a high temperature, while the patent cannot cool and precipitate the exhaust gas, causing the exhaust gas to cause serious harm to the external environment and affecting practicality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-temperature carbonization furnace, comprising a carbonization furnace body, a feed pipe is fixed on the inner side of the left side wall of the carbonization furnace body, a feed pipe is connected to the outer side of the feed pipe, a furnace chamber is rotatably connected to the right side of the feed pipe through a bearing, a treatment box is provided on the right side of the carbonization furnace body, a purification mechanism for purifying the discharged waste gas is provided on the treatment box, and a conveying mechanism for conveying materials is provided on the feed pipe;

[0006] The purification mechanism includes a connecting pipe, one end of the connecting pipe is connected to the left side of the processing box, the other end of the connecting pipe is connected to the furnace, and the outer side is rotatably connected to the inner side of the right side wall of the furnace through a sealed bearing, a fan is fixed to the inner side of the connecting pipe, a water pump is fixed to the right side of the processing box, the input end of the water pump is connected to a water inlet pipe, the other end of the water inlet pipe passes through and extends to the interior of the processing box, the output end of the water pump is connected to a water outlet pipe, the other end of the water outlet pipe is connected to a spray pipe, the two ends of the spray pipe are respectively fixed to the left and right inner walls of the processing box, the outer side of the spray pipe is connected to a nozzle, the top of the processing box is connected to an exhaust pipe, a support rod is fixed to the upper surface of the exhaust pipe, a baffle is fixed to the other end of the support rod, and a filter assembly is arranged on the connecting pipe.

[0007] Furthermore, a plurality of heaters are fixed to the inner bottom wall of the carbonization furnace body and are evenly distributed on the inner bottom wall of the carbonization furnace body.

[0008] Furthermore, the number of the nozzles is not less than two and they are evenly distributed on the outside of the spray pipe.

[0009] Furthermore, the filter assembly includes a connecting plate, a connecting port is opened on the outer side of the connecting pipe, the connecting plate is arranged inside the connecting port, a filter net is fixed on the inner side of the connecting plate, and a handle is fixed on the outer side of the connecting plate.

[0010] Furthermore, the shape of the connection port is the same as that of the connection plate, and the width and outer diameter of the connection port are respectively matched with the width and outer diameter of the connection plate, and the outer diameter of the filter screen is equal to the inner diameter of the connecting pipe.

[0011] Furthermore, the conveying mechanism includes a motor, the output shaft of the motor passes through and extends to the interior of the material passing pipe, and is fixed with a rotating rod, the outer side of the rotating rod is fixed with a first rotating blade, a feed hole is opened on the left side of the furnace, a connecting rod is fixed to the outer side of the other end of the rotating rod, the other end of the connecting rod is fixed to the inner side of the feed hole, a second rotating blade is fixed to the inner side of the furnace, and a discharge port is opened on the outer side of the furnace.

[0012] Furthermore, the number of the discharge ports is not less than two, and they are symmetrically distributed around the central axis of the furnace, and all the discharge ports are located on the right side of the carbonization furnace body.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. The low-temperature carbonization furnace can pass the waste gas generated after low-temperature carbonization into the treatment box through the cooperation of the connecting pipe to treat the waste gas. Through the cooperation of the water pump, the water at the bottom of the treatment box can be pumped into the water inlet pipe and passed into the spray pipe through the water outlet pipe. Through the cooperation of the nozzle, the water can be sprayed out in the form of water mist, so as to cool the waste gas and let the particles in the waste gas settle, avoiding the damage of high-temperature waste gas to the environment.

[0015] 2. The low-temperature carbonization furnace can drive the rotating rod to rotate through the cooperation of the motor, thereby driving the first rotating blade to rotate, so as to transport the material into the furnace. Through the rotation of the rotating rod, the connecting rod can be rotated synchronously, thereby driving the furnace to rotate, so that the second rotating blade can transport the material in the furnace, allowing the material to pass through the discharge port after low-temperature carbonization. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the purification mechanism of the utility model;

[0018] Figure 3 This is a schematic diagram of the filter assembly of the utility model;

[0019] Figure 4 It is a schematic diagram of the conveying mechanism of the utility model.

[0020] In the figure: 1 carbonization furnace body, 2 material passage pipe, 3 feeding pipe, 4 furnace, 5 processing box, 6 purification mechanism, 601 connecting pipe, 602 fan, 603 water pump, 604 water inlet pipe, 605 water outlet pipe, 606 spray pipe, 607 nozzle, 608 exhaust pipe, 609 support rod, 610 baffle, 611 connecting plate, 612 connecting port, 613 filter screen, 614 handle, 7 conveying mechanism, 701 motor, 702 rotating rod, 703 first rotating blade, 704 feeding hole, 705 connecting rod, 706 second rotating blade, 707 outlet, 8 heater. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1A low-temperature carbonization furnace in this embodiment includes a carbonization furnace body 1. A feed pipe 2 is fixed on the inner side of the left side wall of the carbonization furnace body 1. A feed pipe 3 is connected to the outer side of the feed pipe 2. The material is put into the feed pipe 3, and the material enters the feed pipe 2 through the feed pipe 3. The right side of the feed pipe 2 is rotatably connected with a furnace chamber 4 through a bearing. A treatment box 5 is provided on the right side of the carbonization furnace body 1. A purification mechanism 6 for purifying the exhausted exhaust gas is provided on the treatment box 5 to prevent the high-temperature exhaust gas from being directly discharged into the air and polluting the environment. A conveying mechanism 7 for conveying the material is provided on the feed pipe 2, so that the material can complete the low-temperature carbonization treatment in the carbonization furnace and be discharged autonomously.

[0023] A plurality of heaters 8 are fixed to the inner bottom wall of the carbonization furnace body 1 and are evenly distributed on the inner bottom wall of the carbonization furnace body 1 , so that the furnace chamber 4 can be evenly heated.

[0024] See also Figure 2-3 In order to prevent high-temperature exhaust gas from being directly discharged into the air and causing pollution to the environment, the purification mechanism 6 in this embodiment includes a connecting pipe 601, one end of the connecting pipe 601 is connected to the left side of the processing box 5, the other end of the connecting pipe 601 is connected to the furnace 4, and the outer side is rotatably connected to the inner side of the right side wall of the furnace 4 through a sealed bearing, and a fan 602 is fixed to the inner side of the connecting pipe 601, and the fan 602 draws the exhaust gas generated inside the furnace 4 into the connecting pipe 601, and enters the processing box 5 through the connecting pipe 601. A water pump 603 is fixed to the right side of the processing box 5, and the input end of the water pump 603 is connected to a water inlet pipe 604, and the other end of the water inlet pipe 604 passes through and extends to the inside of the processing box 5, and the output end of the water pump 603 is connected to a water outlet pipe 605, and the other end of the water outlet pipe 605 is connected to a spray pipe 606, and the water pump 603 draws water from the processing box 5 through the water inlet pipe 604 and pressurizes it, and then Then, water is introduced into the spray pipe 606 through the water outlet pipe 605. The two ends of the spray pipe 606 are respectively fixed to the left and right inner walls of the treatment box 5. The outer side of the spray pipe 606 is connected to a nozzle 607. The water inside the spray pipe 606 is sprayed out from the nozzle 607 to form a water curtain inside the treatment box 5, so as to cool the exhaust gas and settle the small-volume particles in the exhaust gas to reduce the pollution of the exhaust gas. The top of the treatment box 5 is connected to an exhaust pipe 608. The treated exhaust gas rises to the exhaust pipe 608 and is discharged into the atmosphere through the exhaust pipe 608. A support rod 609 is fixed to the upper surface of the exhaust pipe 608. A baffle 610 is fixed to the other end of the support rod 609 to allow the treated exhaust gas to be discharged normally while preventing rainwater from entering the treatment box 5. The right side of the treatment box 5 is connected to a drain pipe to facilitate the discharge of water inside the treatment box 5. A filter assembly is provided on the connecting pipe 601.

[0025] In this example, the number of nozzles 607 is not less than two and they are evenly distributed on the outside of the spray pipe 606 so that the sprayed water curtain can cover the entire treatment box 5, thereby improving the sedimentation effect.

[0026] It should be noted that the filter assembly includes a connecting plate 611, a connecting port 612 is opened on the outer side of the connecting pipe 601, the connecting plate 611 is arranged inside the connecting port 612, a filter screen 613 is fixed on the inner side of the connecting plate 611, the filter screen 613 filters large-volume impurities in the exhaust gas, and a handle 614 is fixed on the outer side of the connecting plate 611, the handle 614 can easily drive the connecting plate 611 to move, so as to take out the filter screen 613 for cleaning or replacement, the shape of the connecting port 612 is the same as that of the connecting plate 611, and the width and outer diameter of the connecting port 612 are respectively adapted to the width and outer diameter of the connecting plate 611, the outer diameter of the filter screen 613 is equal to the inner diameter of the connecting pipe 601, thereby improving the filtering effect on the exhaust gas.

[0027] See also Figure 4 In order to enable the material to complete the low-temperature carbonization treatment in the carbonization furnace and be discharged autonomously, the conveying mechanism 7 in this embodiment includes a motor 701, the output shaft of the motor 701 penetrates and extends to the inside of the feed pipe 2, and is fixed with a rotating rod 702, the output shaft of the motor 701 drives the rotating rod 702 to rotate, the outer side of the rotating rod 702 is fixed with a first rotating blade 703, the rotating rod 702 drives the first rotating blade 703 to rotate, a feed hole 704 is opened on the left side of the furnace 4, the first rotating blade 703 conveys the material, so that the material moves to the right and enters the furnace 4 through the feed hole 704, the outer side of the other end of the rotating rod 702 is fixed with a connecting rod 705, the connecting rod There are two 705, and they are symmetrically distributed up and down with the central axis of the rotating rod 702 to avoid large-scale obstruction of the feed hole 704. The other end of the connecting rod 705 is fixed to the inner side of the feed hole 704. The rotating rod 702 will drive the connecting rod 705 to rotate while rotating, and the connecting rod 705 drives the furnace 4 to rotate. A second rotating blade 706 is fixed to the inner side of the furnace 4. The rotation of the furnace 4 drives the second rotating blade 706 to rotate, so that the material inside the furnace 4 is evenly transported to the right. A discharge port 707 is opened on the outer side of the furnace 4. The material that has completed the low-temperature carbonization treatment is pushed to the right side of the furnace 4 by the second rotating blade 706, and the material passes out from the discharge port 707.

[0028] In this example, the number of discharge ports 707 is no less than two, and they are symmetrically distributed around the central axis of the furnace 4. All discharge ports 707 are located on the right side of the carbonization furnace body 1 so that materials can pass out during the rotation of the furnace 4. At the same time, the direction of the discharge port 707 is perpendicular to the direction of the connecting pipe 601, and the exhaust gas inside the furnace 4 can be prevented from leaking from the discharge port 707 when driven by the fan 602.

[0029] The working principle of the above embodiment is:

[0030] (1) First, the material is put into the feed pipe 3, and the material enters the feed pipe 2 through the feed pipe 3. At this time, the motor 701 is turned on, and the output shaft of the motor 701 drives the rotating rod 702 to rotate, and the rotating rod 702 drives the first rotating blade 703 to rotate. The first rotating blade 703 transports the material, so that the material moves to the right and enters the furnace 4 through the feed hole 704. The rotating rod 702 will drive the connecting rod 705 to rotate while rotating, and the connecting rod 705 drives the furnace 4 to rotate. The rotation of the furnace 4 drives the second rotating blade 706 to rotate, so that the material inside the furnace 4 is evenly transported to the right. At the same time, the heater 8 is turned on, and the heater 8 evenly heats the furnace 4 to make the material inside the furnace 4 undergo low-temperature carbonization treatment. The material that has completed the low-temperature carbonization treatment is pushed to the right side of the furnace 4 by the second rotating blade 706, and the material passes out from the discharge port 707.

[0031] (2) During the low-temperature carbonization process of the material, a large amount of waste gas will be generated. If the waste gas is not discharged in time, the effect of the low-temperature carbonization of the material will be affected. The fan 602 is turned on. The fan 602 draws the waste gas generated inside the furnace 4 into the connecting pipe 601, and enters the processing box 5 through the connecting pipe 601. The filter 613 filters the large-volume impurities in the waste gas, and the remaining waste gas enters the processing box 5. The water pump 603 draws out and pressurizes the water inside the processing box 5 through the water inlet pipe 604, and then passes the water into the spray pipe 606 through the water outlet pipe 605. The water inside the spray pipe 606 is sprayed from the nozzle 607 to form a water curtain inside the processing box 5, so as to cool the waste gas and settle the small-volume particles in the waste gas to reduce the pollution of the waste gas. The waste gas after treatment rises to the exhaust pipe 608 and is discharged into the atmosphere through the exhaust pipe 608.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A low temperature carbonization furnace, comprising a carbonization furnace body (1), characterized in that: A feed pipe (2) is fixed on the inner side of the left side wall of the carbonization furnace body (1), the outer side of the feed pipe (2) is connected to a feed pipe (3), the right side of the feed pipe (2) is rotatably connected to a furnace (4) via a bearing, a treatment box (5) is provided on the right side of the carbonization furnace body (1), a purification mechanism (6) for purifying discharged waste gas is provided on the treatment box (5), and a conveying mechanism (7) for conveying materials is provided on the feed pipe (2); The purification mechanism (6) comprises a connecting pipe (601), one end of which is connected to the left side of the treatment box (5), the other end of which is connected to the furnace (4), and the outer side of which is rotatably connected to the inner side of the right side wall of the furnace (4) via a sealing bearing, a fan (602) is fixed to the inner side of the connecting pipe (601), a water pump (603) is fixed to the right side of the treatment box (5), the input end of the water pump (603) is connected to a water inlet pipe (604), the other end of which passes through and extends to the interior of the treatment box (5), and the The output end of the water pump (603) is connected to a water outlet pipe (605), the other end of the water outlet pipe (605) is connected to a spray pipe (606), the two ends of the spray pipe (606) are respectively fixed to the left and right inner walls of the treatment box (5), the outer side of the spray pipe (606) is connected to a nozzle (607), the top end of the treatment box (5) is connected to an exhaust pipe (608), a support rod (609) is fixed to the upper surface of the exhaust pipe (608), and a baffle (610) is fixed to the other end of the support rod (609), and a filter assembly is provided on the connecting pipe (601).

2. A low temperature carbonization furnace according to claim 1, characterized in that: A plurality of heaters (8) are fixed to the inner bottom wall of the carbonization furnace body (1) and are evenly distributed on the inner bottom wall of the carbonization furnace body (1).

3. A low temperature carbonization furnace according to claim 1, characterized in that: The number of the nozzles (607) is no less than two and they are evenly distributed on the outside of the spray pipe (606).

4. A low temperature carbonization furnace according to claim 1, characterized in that: The filter assembly comprises a connecting plate (611), a connecting port (612) is provided on the outer side of the connecting pipe (601), the connecting plate (611) is arranged inside the connecting port (612), a filter net (613) is fixed on the inner side of the connecting plate (611), and a handle (614) is fixed on the outer side of the connecting plate (611).

5. A low temperature carbonization furnace according to claim 4, characterized in that: The shape of the connection port (612) is the same as that of the connection plate (611), and the width and outer diameter of the connection port (612) are respectively matched to the width and outer diameter of the connection plate (611), and the outer diameter of the filter screen (613) is equal to the inner diameter of the connecting pipe (601).

6. A low temperature carbonization furnace according to claim 1, characterized in that: The conveying mechanism (7) comprises a motor (701), the output shaft of the motor (701) passes through and extends to the interior of the feed pipe (2), and is fixed with a rotating rod (702), the outer side of the rotating rod (702) is fixed with a first rotating blade (703), a feed hole (704) is provided on the left side of the furnace (4), a connecting rod (705) is fixed to the outer side of the other end of the rotating rod (702), the other end of the connecting rod (705) is fixed to the inner side of the feed hole (704), a second rotating blade (706) is fixed to the inner side of the furnace (4), and a discharge port (707) is provided on the outer side of the furnace (4).

7. A low temperature carbonization furnace according to claim 6, characterized in that: The number of the discharge ports (707) is not less than two, and they are symmetrically distributed around the central axis of the furnace (4), and all the discharge ports (707) are located on the right side of the carbonization furnace body (1).

Images