Internal preheating carbonization furnace

Abstract

The utility model discloses an internal preheating carbonization furnace, and particularly relates to the technical field of carbonization furnaces, the internal preheating carbonization furnace comprises a furnace body, a ring pipe and a plurality of preheating pipes, the ring pipe is fixed on the outer wall of the furnace body, the plurality of preheating pipes are positioned on one side of the ring pipe and are fixedly communicated, and one end part of each preheating pipe is provided with a flow guide preheating mechanism; the flow guide preheating mechanism comprises a communicating ring pipe installed at one end of the preheating pipe, one side of the communicating ring pipe fixedly communicates with a backflow pipe, and the top end of the outer wall of the ring pipe fixedly communicates with a pressurizing pipe. According to the utility model, the diversion preheating mechanism is adopted, high-temperature waste gas is exhausted into the flue gas heat conduction cylinder through the exhaust pipe, the flue gas heat conduction cylinder enables the high-temperature waste gas to be in contact with the outer wall of the preheating tank, the circulating pump is started to enable the suction pipe to generate suction force, the suction pipe sucks hot liquid in the preheating tank into the pressurizing pipe, and the furnace body is preheated through the plurality of preheating pipes; high-temperature waste gas of the carbonization furnace can be fully utilized, efficient preheating of the furnace body is achieved, and the energy-saving performance is better.

Description

Technical Field

[0001] The utility model relates to the technical field of carbonization furnaces, and more specifically, to a carbonization furnace with preheating inside. Background Art

[0002] Carbonization furnaces are widely used in the production of charcoal, especially the production of mechanism charcoal. By subjecting organic materials such as wood and bamboo to high-temperature carbonization, high-quality charcoal products can be obtained, which are used for various purposes such as barbecuing, heating, and industrial raw materials.

[0003] In the existing published literature, the patent with the patent announcement number CN207210327U discloses a low-temperature carbonization furnace. By setting the first air inlet pipe, air inlet box, second air inlet pipe, exhaust fan, first air treatment device, air outlet device, second air treatment device, and electric heating block to cooperate with each other, the problem that ordinary low-temperature carbonization furnaces cannot be fully carbonized is solved. This low-temperature carbonization furnace has the advantage of being able to be fully carbonized, thus saving a lot of time for users. However, the following problems still exist when this carbonization furnace is in use;

[0004] When the carbonization furnace is used for carbonization, although preheating operation can be achieved through electric heating, during the electric heating process, it is difficult to make full use of the high-temperature waste gas generated by the carbonization furnace to realize waste gas energy storage for preheating the carbonization furnace, which results in poor energy-saving performance of the preheating of the carbonization furnace. Therefore, a carbonization furnace with preheating inside is provided. Summary of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a carbonization furnace with preheating inside.

[0006] To achieve the above object, the utility model provides the following technical solution: A carbonization furnace with preheating inside, including a furnace body, an annular pipe, and a plurality of preheating pipes. The annular pipe is fixed on the outer wall of the furnace body, and the plurality of preheating pipes are located on one side of the annular pipe and are fixedly connected and communicated. One end of the preheating pipe is provided with a diversion preheating mechanism; the diversion preheating mechanism includes a communicating annular pipe installed at one end of the preheating pipe, and a return pipe is fixedly connected and communicated on one side of the communicating annular pipe. The top end of the outer wall of the annular pipe is fixedly connected and communicated with a pressurizing pipe; a circulating pump is fixedly installed at the top end of the pressurizing pipe, and the circulating pump is used for pressurizing the hot liquid. The output end of the circulating pump is threadedly connected and communicated with a suction pipe, and a preheating tank is fixedly connected and communicated on the outer wall of the suction pipe. The preheating tank is used for containing the hot liquid, and a flue gas heat conduction cylinder is installed outside the preheating tank; the bottom end of the flue gas heat conduction cylinder is fixedly connected and communicated with an exhaust pipe.

[0007] Preferably, a plurality of the preheating tubes are arranged in an equidistant circular distribution, and the exhaust pipe is fixedly communicated with the furnace body. A resistance heating plate is fixedly installed at the bottom end of the inner wall of the furnace body, and the resistance heating plate is used to heat the furnace body. The outer wall of the communicating ring pipe is fixedly connected with a heat preservation housing, and two mounting blocks are fixedly connected to the bottom end of the outer wall of the heat preservation housing.

[0008] In this technical solution, the high-temperature waste gas generated by carbonization is discharged upward along the exhaust pipe. The exhaust pipe is discharged upward into the flue gas heat conduction cylinder, and the high-temperature waste gas is contacted with the outer wall of the preheating tank by the flue gas heat conduction cylinder. When it is necessary to preheat the inside of the furnace body again after heating, the circulation pump is started to make the suction pipe generate suction force, and the suction pipe sucks the hot liquid inside the preheating tank into the pressurizing pipe. It is poured into a plurality of preheating tubes through the ring pipe, and after preheating, it can conduct heat to the inside of the furnace body and enter the preheating tank through the return pipe.

[0009] Preferably, two hinge blocks are fixedly installed at one end of the furnace body. A sealing door is rotatably connected to one side of the hinge block by being embedded, and a positioning and locking assembly is provided on one side of the sealing door; the positioning and locking assembly includes a positioning sleeve block provided on one side of the sealing door, and a docking block fixedly connected to the furnace body is provided on one side of the positioning sleeve block; a support bar is fixedly installed at the bottom end of the docking block, and an electric cylinder is fixedly connected to the bottom end of the support bar. The outer wall of the output end of the electric cylinder is slidably connected with the support bar. The two hinge blocks are arranged in an equidistant manner from top to bottom in sequence, and both the positioning sleeve block and the docking block are made of silicon carbide material. The vertical cross-sectional shape of the support bar is set as an L shape, and a gap is opened in the inner wall of the docking block.

[0010] In this technical solution, the sealing door rotates on the hinge block. The positioning sleeve block is inserted into the gap inside the docking block. The docking block supports the support bar, and the support bar provides a support force for the electric cylinder. The output end of the electric cylinder is inserted into the docking block and into the positioning sleeve block.

[0011] The technical effects and advantages of the present utility model:

[0012] The present utility model adopts a diversion preheating mechanism. The exhaust pipe is discharged upward into the flue gas heat conduction cylinder, and the high-temperature waste gas is contacted with the outer wall of the preheating tank by the flue gas heat conduction cylinder. The circulation pump is started to make the suction pipe generate suction force, and the suction pipe sucks the hot liquid inside the preheating tank into the pressurizing pipe. It is poured into a plurality of preheating tubes through the ring pipe, and the furnace body is preheated through a plurality of preheating tubes, which can make full use of the high-temperature waste gas of the carbonization furnace, realize efficient preheating of the furnace body, and have better energy-saving performance;

[0013] 2. The present utility model adopts a positioning and locking assembly. The sealing door rotates on the hinge block, and the sealing door can cover the furnace body. The docking block supports the support bar, and the support bar provides a support force for the electric cylinder. The output end of the electric cylinder is inserted into the docking block and into the positioning sleeve block, and the sealing door can be quickly positioned and then seal the furnace body. Brief Description of the Drawings

[0014] Figure 1 This is a schematic diagram of the overall structure of the carbonization furnace with internal preheating of the present utility model.

[0015] Figure 2 This is a schematic diagram of the vertical cross-section structure of the carbonization furnace with internal preheating of the present utility model.

[0016] Figure 3 This is a schematic diagram of a partial structure of the cut-off connection between the pressure-increasing pipe and the circulation pump of the present utility model.

[0017] Figure 4 This is a schematic diagram of the top view plane structure of the carbonization furnace with internal preheating of the present utility model.

[0018] Figure 5 This is a schematic diagram of the bottom view structure of the carbonization furnace with internal preheating of the present utility model.

[0019] Figure 6 This is a schematic diagram of a partial structure of the cut-off connection between the furnace body and the docking block of the present utility model.

[0020] Reference numerals are: 1, furnace body; 2, annular pipe; 3, preheating pipe; 4, connecting annular pipe; 5, return pipe; 6, pressure-increasing pipe; 7, circulation pump; 8, suction pipe; 9, preheating tank; 10, flue gas heat conduction cylinder; 11, exhaust pipe; 12, resistance heating plate; 13, heat preservation housing; 14, mounting block; 15, hinge block; 16, sealing door; 17, positioning sleeve block; 18, docking block; 19, support bar; 20, electric cylinder. Detailed Embodiment

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] As in the Figure 1-6 shown carbonization furnace with internal preheating, a diversion preheating mechanism is provided on the carbonization furnace with internal preheating. The setting of the diversion preheating mechanism can make full use of the high-temperature waste gas of the carbonization furnace to achieve efficient preheating of the furnace body, with better energy-saving performance. The specific structural setting of the diversion preheating mechanism is as follows.

[0023] In this technical solution, as in the Figure 1-3As shown in the figure, the annular pipe 2 is fixed on the outer wall of the furnace body 1, and a plurality of preheating pipes 3 are located on one side of the annular pipe 2 and are fixedly connected. Its characteristics are as follows: A diversion preheating mechanism is installed at one end of the preheating pipe 3; the diversion preheating mechanism includes a connecting annular pipe 4 installed at one end of the preheating pipe 3, and a return pipe 5 is fixedly connected to one side of the connecting annular pipe 4, and a pressurizing pipe 6 is fixedly connected to the top end of the outer wall of the annular pipe 2; a circulating pump 7 is fixedly installed at the top end of the pressurizing pipe 6, and the circulating pump 7 is used to pressurize the hot liquid. The output end of the circulating pump 7 is threadedly connected with a suction pipe 8. A preheating tank 9 is fixedly connected to the outer wall of the suction pipe 8. The preheating tank 9 is used to hold the hot liquid. A flue gas heat conduction cylinder 10 is installed outside the preheating tank 9; the bottom end of the flue gas heat conduction cylinder 10 is fixedly connected with an exhaust pipe 11. The plurality of preheating pipes 3 are arranged in an equidistant circular arrangement, and the exhaust pipe 11 is fixedly connected between the furnace body 1.

[0024] In this technical solution, as shown in the atta Figure 2-5 ched figure, a resistance heating plate 12 is fixedly installed at the bottom end of the inner wall of the furnace body 1. The resistance heating plate 12 is used to heat the furnace body 1, so that after the inside of the furnace body 1 is heated by the resistance heating plate 12, carbonization treatment is carried out inside the furnace body 1. During the heating operation, a heat preservation shell 13 is fixedly connected to the outer wall of the connecting annular pipe 4, and two mounting blocks 14 are fixedly connected to the bottom end of the outer wall of the heat preservation shell 13, so as to fix the mounting blocks 14 on the platform through bolts. The mounting blocks 14 provide a supporting force for the outer wall of the heat preservation shell 13, and the heat preservation shell 13 can perform heat preservation operation on the outside of the furnace body 1.

[0025] When this technical solution is used, the mounting blocks 14 are fixed on the platform through bolts, and the mounting blocks 14 provide a supporting force for the outer wall of the heat preservation shell 13. Then, the hot liquid is poured into the preheating tank 9 for holding. When the inside of the furnace body 1 is heated by the resistance heating plate 12, carbonization treatment is carried out inside the furnace body 1. The high-temperature waste gas generated by carbonization rises along the exhaust pipe 11. The exhaust pipe 11 discharges upward into the flue gas heat conduction cylinder 10. The flue gas heat conduction cylinder 10 contacts the high-temperature waste gas on the outer wall of the preheating tank 9 to heat the hot liquid inside the preheating tank 9. When it is necessary to preheat the inside of the furnace body 1 again after heating, the circulating pump 7 is started to make the suction pipe 8 generate suction. The suction pipe 8 sucks the hot liquid inside the preheating tank 9 into the pressurizing pipe 6. The hot liquid is sucked into the annular pipe 2 through the pressurizing pipe 6 and is poured into a plurality of preheating pipes 3 through the annular pipe 2. The furnace body 1 is preheated through the plurality of preheating pipes 3. After preheating, it can conduct heat to the inside of the furnace body 1, and after conduction, it flows back into the return pipe 5 through the connecting annular pipe 4 and enters the preheating tank 9 through the return pipe 5.

[0026] In this technical solution, as shown in the atta Figure 1-6As shown in the figure, two hinge blocks 15 are fixedly installed at one end of the furnace body 1. A rotatably connected sealing door 16 is embedded on one side of the hinge block 15, and a positioning and locking assembly is provided on one side of the sealing door 16; the positioning and locking assembly includes a positioning sleeve block 17 provided on one side of the sealing door 16, and a docking block 18 fixedly connected to the furnace body 1 is provided on one side of the positioning sleeve block 17; a support bar 19 is fixedly installed at the bottom end of the docking block 18, the bottom end of the support bar 19 is fixedly connected to an electric cylinder 20, and the outer wall of the output end of the electric cylinder 20 is slidably connected with the support bar 19. The two hinge blocks 15 are arranged equidistantly from top to bottom in sequence, and both the positioning sleeve block 17 and the docking block 18 are made of silicon carbide material. The vertical cross-sectional shape of the support bar 19 is set to an L shape, and a gap is formed in the inner wall of the docking block 18.

[0027] When this technical solution is in use, rotate the sealing door 16. The sealing door 16 rotates on the hinge block 15, and the sealing door 16 can cover the furnace body 1. And the positioning sleeve block 17 is inserted into the gap inside the docking block 18. Then, the docking block 18 supports the support bar 19, and the support bar 19 provides a support force for the electric cylinder 20. The output end of the electric cylinder 20 moves upward along the inside of the support bar 19. The output end of the electric cylinder 20 is inserted into the inside of the docking block 18 and into the inside of the positioning sleeve block 17 to lock the positioning sleeve block 17.

[0028] Contents not described in detail in the specification belong to the well-known prior art in the art, and the model parameters of each electrical appliance are not specifically limited. Conventional equipment can be used. In this technical solution, since the electrical control components not mentioned belong to the prior art, they are not shown in the figure and will not be described here either.

[0029] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An internally preheated carbonization furnace, comprising a furnace body (1), a ring pipe (2) and a plurality of preheating pipes (3), wherein the ring pipe (2) is fixed on the outer wall of the furnace body (1), and the plurality of preheating pipes (3) are located on one side of the ring pipe (2) and are fixedly communicated. It is characterized in that: One end of the preheating pipe (3) is provided with a diversion preheating mechanism; The diversion preheating mechanism includes a connecting ring pipe (4) installed at one end of the preheating pipe (3), and a return pipe (5) is fixedly connected to one side of the connecting ring pipe (4). The top end of the outer wall of the ring pipe (2) is fixedly connected to a pressurizing pipe (6); The top end of the pressurizing pipe (6) is fixedly installed with a circulation pump (7), and the circulation pump (7) is used to pressurize the hot liquid. The output end of the circulation pump (7) is threadedly connected to a suction pipe (8). A preheating tank (9) is fixedly connected to the outer wall of the suction pipe (8). The preheating tank (9) is used to hold the hot liquid, and a flue gas heat conduction cylinder (10) is installed outside the preheating tank (9); The bottom end of the flue gas heat conduction cylinder (10) is fixedly connected to an exhaust pipe (11).

2. The internally preheated carbonization furnace according to claim 1, characterized in that: A plurality of the preheating pipes (3) are arranged in an equidistant circular distribution, and the exhaust pipe (11) is fixedly connected to the furnace body (1).

3. The internally preheated carbonization furnace according to claim 1, characterized in that: A resistance heating plate (12) is fixedly installed at the bottom end of the inner wall of the furnace body (1), and the resistance heating plate (12) is used to heat the furnace body (1).

4. The internally preheated carbonization furnace according to claim 1, characterized in that: The outer wall of the connecting ring pipe (4) is fixedly connected to a heat preservation housing (13), and two mounting blocks (14) are fixedly connected to the bottom end of the outer wall of the heat preservation housing (13).

5. The internally pre-heated carbonization furnace according to claim 1, characterized in that: Two hinge blocks (15) are fixedly installed at one end of the furnace body (1). A sealing door (16) is rotatably connected to one side of the hinge block (15) by embedding, and a positioning and locking assembly is provided on one side of the sealing door (16); The positioning and locking assembly includes a positioning sleeve block (17) provided on one side of the sealing door (16), and a docking block (18) fixedly connected to the furnace body (1) is provided on one side of the positioning sleeve block (17); A support bar (19) is fixedly installed at the bottom end of the docking block (18), and an electric cylinder (20) is fixedly connected to the bottom end of the support bar (19). The outer wall of the output end of the electric cylinder (20) is slidably connected to the support bar (19).

6. The internally pre-heated carbonization furnace according to claim 5, wherein: The two hinge blocks (15) are arranged in an equidistant order from top to bottom, and both the positioning sleeve block (17) and the docking block (18) are made of silicon carbide.

7. The internally pre-heated carbonization furnace according to claim 5, characterized in that: The vertical cross-sectional shape of the support bar (19) is set to be L-shaped, and a gap is formed in the inner wall of the docking block (18).

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