Static activation furnace

Abstract

The utility model belongs to the technical field of activation furnaces, and particularly relates to a static activation furnace which comprises a furnace body, the furnace body is sequentially provided with a combustion chamber, an activation chamber and a carbonization chamber from bottom to top, a steam furnace is arranged in the combustion chamber and comprises a furnace mouth, a water adding pipe, a steam pipe and a tail gas pipe, and the tail gas pipe is communicated with a carbon outlet. A rotating shaft penetrating through the carbonization chamber and the activation chamber and a driving mechanism for driving the rotating shaft to rotate are arranged at the top of the furnace body, cross rods corresponding to the baffling layers are arranged on the rotating shaft, scrapers are arranged at the bottoms of the cross rods, and the rotating shaft comprises a solid shaft and a hollow shaft which are arranged up and down; wherein a row of communicated hollow steam holes are formed in the cross rod on the hollow shaft section, and a rotary joint is arranged between the steam pipe and the bottom end of the hollow shaft for connection. Compared with the prior art, the static activation furnace has the advantages that the steam conveying structure is optimized, so that steam can be quickly and uniformly conveyed to each layer of the activation chamber through the rotating shaft, and the activation efficiency and the quality of finished products are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of activation furnaces, in particular to a static activation furnace. Background Art

[0002] In the activated carbon production process, the selection of activation furnace is crucial to the quality and production efficiency of the product. At present, activation furnaces are mainly divided into two types: dynamic activation furnaces and static activation furnaces, and horizontal rotary kilns and vertical activation furnaces are representatives of these two types.

[0003] Among them, the horizontal rotary kiln in the dynamic activation furnace is highly favored for its efficient activation ability. During operation, the furnace body of the horizontal rotary kiln rotates continuously, so that the materials in the furnace can be heated evenly, thus achieving efficient activation effect. However, this design also leads to the problem that the horizontal rotary kiln occupies a large area, increasing construction and operation costs.

[0004] In contrast, the vertical activation furnace in the static activation furnace has a smaller footprint and is suitable for occasions with limited space, but the vertical activation furnace lacks the ability to transport and uniformly activate. For example, a vertical integrated internal combustion furnace for clean preparation of activated carbon disclosed in the prior art (publication number CN210528482U) has certain deficiencies in activation efficiency. In addition, the steam of the static activation furnace generally enters the activation chamber from the combustion chamber below, and is more prone to loss and unevenness during the steam circulation and transportation process, which not only reduces the activation efficiency, but also leads to uneven activation effects. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the utility model provides a static activation furnace with optimized steam conveying structure to solve the above-mentioned problems.

[0006] The utility model discloses a static activation furnace, comprising a furnace body, wherein the furnace body is sequentially arranged as a combustion chamber, an activation chamber and a carbonization chamber from bottom to top, wherein a plurality of baffle layers are arranged in the activation chamber and the carbonization chamber, wherein the baffle layers are provided with blanking openings, and the blanking openings adjacent to each other are arranged in an opposite and staggered manner, wherein one layer of the baffle layers is provided with a discharge device, and the carbonization chamber and the activation chamber are divided by the baffle layers, wherein a carbon inlet is arranged at the top of the carbonization chamber, and a carbon outlet passing through the combustion chamber is arranged at the activation chamber, wherein a high-temperature exhaust gas outlet is arranged at one side of the top of the activation chamber, and low-temperature exhaust gas outlets are arranged at the bottom and the top of the carbonization chamber, respectively. An exhaust gas inlet and a low-temperature exhaust gas outlet; a steam furnace is arranged in the combustion chamber, and the steam furnace includes a furnace mouth, a water adding pipe, a steam pipe and an exhaust gas pipe, and the exhaust gas pipe is connected with the carbon outlet. A rotating shaft penetrating the carbonization chamber and the activation chamber is arranged on the top of the furnace body, and a driving mechanism for driving the rotating shaft to rotate is arranged. A cross bar corresponding to each baffle layer is arranged on the rotating shaft, and a scraper is arranged at the bottom of the cross bar. The rotating shaft includes a solid shaft and a hollow shaft arranged from top to bottom, wherein the cross bar on the hollow shaft section is provided with a row of steam holes, and a rotary joint is arranged between the steam pipe and the bottom end of the hollow shaft.

[0007] Furthermore, the arrangement interval of the steam holes gradually narrows outward along the cross bar.

[0008] Furthermore, a flow control valve is provided on the steam pipe.

[0009] Furthermore, the baffle layer includes an upper layer and a lower layer, wherein the upper layer is a heat-insulating layer and the lower layer is a fire-resistant layer.

[0010] Furthermore, the furnace wall of the furnace body includes an outer layer and an inner layer, wherein the outer layer is made of ordinary clay bricks, and the inner layer is made of refractory bricks, and an insulation layer is arranged between the outer layer and the inner layer.

[0011] Furthermore, a heat-insulating smoke shield is provided between the combustion chamber and the carbon outlet, and the tail gas pipe is connected with the carbon outlet after passing through the heat-insulating smoke shield.

[0012] Furthermore, the driving mechanism is a reduction motor.

[0013] Furthermore, a bearing seat matched with the rotating shaft is arranged on the top of the furnace body, a driving shell covering the rotating shaft and the driving mechanism is arranged on the top of the furnace body, and a heat dissipation grille is arranged on the side of the driving shell.

[0014] Furthermore, the discharging device is a plug valve.

[0015] Compared with the existing technology, the static activation furnace optimizes the steam delivery structure so that the steam can be quickly and evenly delivered to each layer of the activation chamber through the rotating shaft and its cross bar, so that the carbon material in the activation chamber is evenly activated after contact with the steam, thereby improving the activation efficiency and the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a top cross-sectional view of the utility model.

[0018] In the figure: 1. furnace body; 2. combustion chamber; 3. activation chamber; 4. carbonization chamber; 5. baffle; 6. material drop port; 7. material discharge device; 8. carbon inlet; 9. carbon outlet; 10. high-temperature exhaust gas outlet; 11. low-temperature exhaust gas inlet; 12. low-temperature exhaust gas outlet; 13. steam furnace; 14. furnace mouth; 15. water supply pipe; 16. steam pipe; 17. exhaust pipe; 18. rotating shaft; 19. driving mechanism; 20. cross bar; 21. scraper; 22. hollow shaft; 23. steam hole; 24. rotary joint; 25. flow control valve; 26. heat insulation smoke shield; 27. bearing seat; 28. driving shell. DETAILED DESCRIPTION

[0019] In order to better understand the present invention, Figure 1 to Figure 2 The implementation modes of the present utility model will be explained in detail.

[0020] It should be noted that the directions "front, back, left, right, up, down" mentioned in the text are all based on Figure 1 The directions of “front, back, left, right, up, and down” are used as the basis.

[0021] See also Figure 1 and Figure 2The utility model is a static activation furnace, which is the same as the prior art, and includes a furnace body 1, and the furnace body 1 is sequentially arranged as a combustion chamber 2, an activation chamber 3 and a carbonization chamber 4 from bottom to top, and a plurality of baffle layers 5 are arranged in the activation chamber 3 and the carbonization chamber 4, and a blanking port 6 is opened on the baffle layer 5, and the blanking ports 6 adjacent to each other are arranged in an opposite and staggered manner, one of the baffle layers 5 is provided with a discharge device 7, and the baffle layer 5 is used to divide the carbonization chamber 4 and the activation chamber 3, the top of the carbonization chamber 4 is provided with a carbon inlet 8, and the activation chamber 3 is provided with a carbon outlet 9 passing through the combustion chamber 2, a high-temperature exhaust gas outlet 10 is arranged on one side of the top of the activation chamber 3, and a low-temperature exhaust gas inlet 11 and a low-temperature exhaust gas outlet 12 are respectively arranged at the bottom and the top of the carbonization chamber 4; on this basis, the static activation A steam furnace 13 is arranged in the combustion chamber 2 of the carbonization furnace, and the steam furnace 13 includes a furnace mouth 14, a water adding pipe 15, a steam pipe 16 and a tail gas pipe 17. The tail gas pipe 17 is connected to the carbon outlet 9. A rotating shaft 18 penetrating the carbonization chamber 4 and the activation chamber 3 is arranged on the top of the furnace body 1, and a driving mechanism 19 for driving the rotating shaft 18 to rotate is arranged. A cross bar 20 corresponding to each layer of the baffle layer 5 is arranged on the rotating shaft 18, and a scraper 21 is arranged at the bottom of the cross bar 20. The rotating shaft 18 consists of a solid shaft and a hollow shaft 22 arranged from top to bottom, wherein the hollow shaft 22 is hollow inside, and the cross bar 20 on the hollow shaft 22 is provided with a row of hollow steam holes 23, and a rotary joint 24 is arranged between the steam pipe 16 and the bottom end of the hollow shaft 22.

[0022] The preferred technical solution in this embodiment is as follows Figure 2 As shown in FIG. 1 , in order to ensure that the steam can evenly fill the activation chamber 3 , the arrangement interval of the steam holes 23 gradually narrows outward along the cross bar 20 .

[0023] In the preferred technical solution of this embodiment, a flow control valve 25 is provided on the steam pipe 16 to control the delivery amount of steam to the activation chamber 3 .

[0024] In the preferred technical solution of this embodiment, the baffle layer 5 includes an upper layer and a lower layer, wherein the upper layer is a heat-insulating layer and the lower layer is a fire-resistant layer.

[0025] In the preferred technical solution of this embodiment, the furnace body 1 adopts a double-layer structure, the outer layer is made of ordinary clay bricks, the inner layer is made of refractory bricks, and an insulation layer is arranged in the middle to improve the thermal insulation performance of the furnace body 1. The baffle layer 5 is also divided into an upper insulation layer and a lower refractory layer to ensure the temperature inside the furnace is stable and extend the service life of the furnace body 1.

[0026] In the preferred technical solution of this embodiment, in order to prevent heat from being lost from the carbon outlet 9, a heat-insulating smoke shield 26 is provided between the combustion chamber 2 and the carbon outlet 9, and the tail gas pipe 17 passes through the heat-insulating smoke shield 26 and communicates with the carbon outlet 9. This can effectively reduce energy loss and improve the overall efficiency of the activation furnace.

[0027] In the preferred technical solution of this embodiment, the driving mechanism 19 is a reduction motor.

[0028] In the preferred technical solution of this embodiment, a bearing seat 27 is arranged on the top of the furnace body 1 to support and fix the rotating shaft 18, and a driving mechanism 19 and a driving shell 28 are provided to protect the driving mechanism 19 and promote heat dissipation.

[0029] In the preferred technical solution of this embodiment, the discharging device 7 is a gate valve, which controls the timing of the carbon material in the carbonization chamber 4 entering the activation chamber 3.

[0030] Since the overall operation mode and principle of the utility model are the same as those of the prior art in the background, the difference mainly lies in the steam delivery structure, so only the principle and steps of the steam delivery part are explained below:

[0031] When the steam furnace 13 is in operation, steam and high-temperature exhaust gas are generated through combustion heating. The steam is output upward from the steam pipe 16 and enters the hollow shaft 22 of the rotating shaft 18 through the connection of the rotary joint 24. The steam is then transported to the cross bars 20 of each layer through the hollow shaft 22 and discharged from the steam holes 23, so that each layer of the baffle layer 5 is evenly filled with steam.

[0032] In the description of the present utility model, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A static activation furnace, comprising a furnace body (1), wherein the furnace body (1) is sequentially arranged as a combustion chamber (2), an activation chamber (3) and a carbonization chamber (4) from bottom to top, wherein a plurality of baffle layers (5) are arranged in the activation chamber (3) and the carbonization chamber (4), wherein the baffle layers (5) are provided with blanking openings (6), and the blanking openings (6) adjacent to each other are arranged in an opposite and staggered manner, wherein one layer of the baffle layers (5) is provided with a discharge device (7), and the baffle layer (5) is used to divide the carbonization chamber (4) and the activation chamber (3), wherein the top of the carbonization chamber (4) is provided with a carbon inlet (8), and the activation chamber (3) is provided with a carbon outlet (9) passing through the combustion chamber (2), a high-temperature exhaust gas outlet (10) is arranged on one side of the top of the activation chamber (3), and a low-temperature exhaust gas inlet (11) and a low-temperature exhaust gas outlet (12) are respectively arranged at the bottom and the top of the carbonization chamber (4); characterized in that: A steam furnace (13) is arranged in the combustion chamber (2), and the steam furnace (13) includes a furnace mouth (14), a water supply pipe (15), a steam pipe (16) and an exhaust pipe (17). The exhaust pipe (17) is connected to the carbon outlet (9). A rotating shaft (18) penetrating the carbonization chamber (4) and the activation chamber (3) is arranged on the top of the furnace body (1), and a driving mechanism (19) for driving the rotating shaft (18) to rotate is arranged. A cross bar (20) corresponding to each baffle layer (5) is arranged on the rotating shaft (18), and a scraper (21) is arranged at the bottom of the cross bar (20). The rotating shaft (18) includes a solid shaft and a hollow shaft (22) arranged from top to bottom, wherein the cross bar (20) on a section of the hollow shaft (22) is provided with a row of steam holes (23), and a rotary joint (24) is arranged between the steam pipe (16) and the bottom end of the hollow shaft (22) for connection.

2. A static activation furnace as claimed in claim 1, characterized in that: The arrangement intervals of the steam holes (23) gradually narrow outwards along the cross bar (20).

3. A static activation furnace as claimed in claim 1, characterized in that: The steam pipe (16) is provided with a flow control valve (25).

4. A static activation furnace as claimed in claim 1, characterized in that: The baffle layer (5) comprises an upper layer and a lower layer, wherein the upper layer is a heat-insulating layer and the lower layer is a fire-resistant layer.

5. A static activation furnace as claimed in claim 1, characterized in that: The furnace wall of the furnace body (1) comprises an outer layer and an inner layer, wherein the outer layer is made of ordinary clay bricks and the inner layer is made of refractory bricks, and an insulation layer is arranged between the outer layer and the inner layer.

6. A static activation furnace as claimed in claim 1, characterized in that: A heat-insulating smoke shield (26) is provided between the combustion chamber (2) and the carbon outlet (9), and the tail gas pipe (17) passes through the heat-insulating smoke shield (26) and is connected to the carbon outlet (9).

7. A static activation furnace as claimed in claim 1, characterized in that: The driving mechanism (19) is a reduction motor.

8. A static activation furnace as claimed in claim 1, characterized in that: A bearing seat (27) matched with the rotating shaft (18) is arranged on the top of the furnace body (1), a driving shell (28) covering the rotating shaft (18) and the driving mechanism (19) is arranged on the top of the furnace body (1), and a heat dissipation grille is arranged on the side of the driving shell (28).

9. A static activation furnace as claimed in claim 1, characterized in that: The discharging device (7) is a plug-in valve.

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