Dust removal structure for efficient graphitization processing

Abstract

The utility model discloses a dust removal structure for efficient graphitization processing, and aims to solve the problem that a dust removal structure is poor in demisting effect. Comprising a dust collecting pipe arranged at the upper end of the graphitization furnace, and the dust collecting pipe is connected with a spray tower. A spraying mechanism and a demisting mechanism are arranged in the spraying tower. The demisting mechanism comprises a plurality of baffle plates A and baffle plates B which are uniformly arrayed, baffle gaps are formed among the baffle plates, and adjusting plates are arranged in the gaps. The adjusting plate and the baffle plate A form a first particle capturing gap, and the adjusting plate and the baffle plate B form a second particle capturing gap. The width of the first particle capturing gap is gradually reduced, the width of the second particle capturing gap is gradually increased, and the first particle capturing gap is larger than the second particle capturing gap at the inlet. Each of the baffle plate A and the baffle plate B consists of five sections of plates, and the inclined sections are alternately bent at 45 degrees and-45 degrees; a through hole is formed in the third inclined plate on the adjusting plate. According to the invention, graded trapping of particulate matters is realized through the gap design with variable width, and water mist distribution and fine particle adsorption are enhanced through the through holes.

Description

Technical Field

[0001] This utility model relates to a high-efficiency dust removal structure for graphitization processing, belonging to the field of graphitization furnace equipment. Background Technology

[0002] A graphitization furnace is an industrial device specifically designed to convert carbon materials into high-purity graphite. This process, commonly known as graphitization, primarily aims to alter the microstructure of carbon materials through high-temperature treatment, endowing them with the properties of graphite, such as good electrical and thermal conductivity and chemical stability. Before graphitization, carbon materials may contain various impurities, such as ash, metal oxides, and other non-carbon components. During the high-temperature graphitization process, these impurities may volatilize or decompose, forming dust. Simultaneously, friction and collisions may occur between the carbon materials and the graphite products during loading, unloading, and operation, causing some material to break into fine particles, also forming dust.

[0003] Currently, closed graphitization furnaces are used and equipped with effective waste gas treatment systems, which can effectively capture and treat the generated dust and harmful gases. However, the demisting and particle capture efficiency of traditional spray towers is limited, especially for fine particles and dust in complex airflows, which are difficult to separate efficiently, resulting in the emission gas still containing a certain amount of particulate matter, failing to meet strict environmental protection requirements.

[0004] Therefore, there is an urgent need for a dust removal structure for graphitization processing that can efficiently capture particulate matter and improve dust removal efficiency, in order to overcome the shortcomings of existing technologies. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency dust removal structure for graphitization processing, which can effectively solve the above-mentioned problems.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] It includes a dust collection pipe installed at the top of the graphitization furnace, with one end of the dust collection pipe connected to a spray tower;

[0008] The spray tower is equipped with a spraying mechanism and a demisting mechanism; the demisting mechanism includes a plurality of uniformly arrayed baffles, and baffle gaps are provided between the baffles, and one baffle gap is composed of two identical baffles A and baffles B;

[0009] An adjustment plate is provided between the flow deflection gaps. The adjustment plate and the flow deflection plate A form a first particle capture gap, and the adjustment plate and the flow deflection plate B form a second particle capture gap.

[0010] The inlet of the first particle capturing gap is larger than the inlet of the second particle capturing gap, and the first particle capturing gap has a gradually decreasing width based on the number of bends of the baffle plate A, while the second particle capturing gap has a gradually increasing width based on the number of bends of the baffle plate B.

[0011] Furthermore: the baffle plate A includes a first vertical plate A, a first inclined plate A, a second vertical plate A, a second inclined plate A, and a third vertical plate A, which are integrally formed and connected from bottom to top; the first inclined plate A is inclined at a 45-degree angle relative to the first vertical plate A, and the second inclined plate A is inclined at a negative 45-degree angle relative to the second vertical plate A.

[0012] Furthermore: the adjusting plate includes a fourth vertical plate, a third inclined plate, a fifth vertical plate, a fourth inclined plate, and a sixth vertical plate, which are integrally formed and connected sequentially from bottom to top; the third inclined plate is inclined at a 45-degree angle relative to the fourth vertical plate, and the fourth inclined plate is inclined at a negative 45-degree angle relative to the fifth vertical plate; the length of the first vertical plate is greater than that of the fourth vertical plate, the length of the first inclined plate is less than that of the third inclined plate, the length of the second vertical plate is equal to that of the fifth vertical plate, the length of the second inclined plate is greater than that of the fourth inclined plate, and the length of the third vertical plate is less than that of the sixth vertical plate.

[0013] Furthermore: a first gap A is formed between the first vertical plate A and the fourth vertical plate; a second gap A is formed between the first inclined plate A and the third inclined plate; a third gap A is formed between the second vertical plate A and the fifth vertical plate; a fourth gap A is formed between the second inclined plate A and the fourth inclined plate; and a fifth gap A is formed between the third vertical plate A and the sixth vertical plate; the widths of the first gap A, the second gap A, the third gap A, the fourth gap A, and the fifth gap A gradually decrease.

[0014] Furthermore: the baffle plate B includes a first vertical plate B, a first inclined plate B, a second vertical plate B, a second inclined plate B, and a third vertical plate B that are integrally formed and connected sequentially from bottom to top; the first inclined plate B is inclined at a 45-degree angle relative to the first vertical plate B, and the second inclined plate B is inclined at a negative 45-degree angle relative to the second vertical plate B.

[0015] Furthermore: a first gap B is formed between the first vertical plate B and the fourth vertical plate; a second gap B is formed between the first inclined plate B and the third inclined plate; a third gap B is formed between the second vertical plate B and the fifth vertical plate; a fourth gap B is formed between the second inclined plate B and the fourth inclined plate; and a fifth gap B is formed between the third vertical plate B and the sixth vertical plate; the widths of the first gap B, the second gap B, the third gap B, the fourth gap B, and the fifth gap B gradually increase.

[0016] Furthermore, the spray tower is also provided with a packing layer, which is located below the spraying mechanism.

[0017] The beneficial effects are:

[0018] 1. By setting up a first particle capture gap and a second particle capture gap consisting of baffle A, baffle B and an adjusting plate, the capture capability of particles of different sizes is enhanced by utilizing the changes in gap width and the bending structure, thereby improving the demisting and dust removal efficiency.

[0019] 2. The tilt angle design of the baffles and regulating plates (such as 45° and -45°) causes the airflow to turn multiple times as it passes through, effectively extending the contact time between particles and water mist, and further improving the dust removal effect.

[0020] 3. The design of gradually decreasing gap width for the first particle capture and gradually increasing gap width for the second particle capture enables graded capture of particulate matter and adapts to complex dust environments.

[0021] 4. The through-hole design on the regulating plate helps to increase the uniformity of water mist distribution in the first particle capture gap and the second particle capture gap. Attached Figure Description

[0022] For ease of explanation, this utility model is described in detail below with reference to the specific embodiments and accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the spray tower of this utility model;

[0025] Figure 3 This is a part drawing of the defogging mechanism of this utility model;

[0026] Figure 4 This is a drawing of the baffle plate part of this utility model;

[0027] Figure 5 This is a drawing of the adjusting plate part of this utility model;

[0028] Figure 6 This is a cross-sectional view of the defogging mechanism of this utility model;

[0029] Figure 7 for Figure 6 Enlarged view of a portion of the image.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Graphitization furnace; 2. Dust collection pipe; 3. Spray tower; 4. Spraying mechanism; 5. Demisting mechanism; 6. Baffle gap; 7. Adjusting plate; 71. Fourth vertical plate; 72. Third inclined plate; 73. Fifth vertical plate; 74. Fourth inclined plate; 75. Sixth vertical plate; 76. Through hole; 8. First particle capture gap; 81. First gap A; 82. Second gap A; 83. Third gap A; 84. Fourth gap A; 85. Fifth gap A; 9. Second particle capture gap; 91. 92. First gap B; 93. Second gap B; 94. Third gap B; 95. Fourth gap B; 96. Fifth gap B; 10. Baffle plate A; 101. First vertical plate A; 102. First inclined plate A; 103. Second vertical plate A; 104. Second inclined plate A; 105. Third vertical plate A; 11. Baffle plate B; 111. First vertical plate B; 112. First inclined plate B; 113. Second vertical plate B; 114. Second inclined plate B; 115. Third vertical plate B. Detailed Implementation

[0032] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0033] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Furthermore, the terms “first,” “second,” “third,” etc., are used for descriptive purposes only and should not be interpreted as indicating or implying relative importance.

[0035] Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] See Figure 1-7 This is one embodiment of a high-efficiency dust removal structure for graphitization processing according to the present invention.

[0037] The dust removal structure in this embodiment includes a dust collection pipe 2 installed at the top of the graphitization furnace 1. The dust collection pipe 2 is made of stainless steel, and one end is connected to the spray tower 3 via a flange. The spray tower 3 is a vertical cylindrical structure made of corrosion-resistant stainless steel. Inside the spray tower 3, from bottom to top, there are a packing layer, a spraying mechanism 4, and a demisting mechanism 5.

[0038] The packing layer uses Raschig ring packing to enhance gas-liquid contact efficiency. The spray mechanism 4 is a conventional technology in the field, including a set of evenly distributed nozzles, and the spray liquid is circulating water. The demister mechanism 5 is located above the spray mechanism 4 and includes multiple evenly arrayed baffles and regulating plates.

[0039] The demisting mechanism 5 of this device includes multiple uniformly arranged baffles. The baffles are divided into baffles A10 and B11 with identical structural dimensions, both integrally formed from stainless steel plates. A baffle gap 6 is formed between baffles A10 and B11. An adjusting plate 7 is positioned between the baffle gaps 6, with the same number of bends and direction as baffles A10 and B11.

[0040] The entrance to the first particle capture gap 8 is larger than the entrance to the second particle capture gap 9, and the width of the first particle capture gap 8 gradually decreases while the width of the second particle capture gap 9 gradually increases.

[0041] For the A10 baffle structure:

[0042] The baffle plate A10 includes a first vertical plate A101, a first inclined plate A102, a second vertical plate A103, a second inclined plate A104, and a third vertical plate A105, which are integrally formed and connected sequentially from bottom to top. The first inclined plate A102 is inclined at 45° relative to the first vertical plate A101, and the second inclined plate A104 is inclined at -45° relative to the second vertical plate A103.

[0043] For the structure of adjustment plate 7:

[0044] The adjusting plate 7 comprises a fourth vertical plate 71, a third inclined plate 72, a fifth vertical plate 73, a fourth inclined plate 74, and a sixth vertical plate 75, all integrally formed and connected sequentially from bottom to top. The third inclined plate 72 is inclined at 45° relative to the fourth vertical plate 71, and the fourth inclined plate 74 is inclined at -45° relative to the fifth vertical plate 73. The lengths of each segment satisfy the following conditions: the first vertical plate A101 is greater than the fourth vertical plate 71, the first inclined plate A102 is less than the third inclined plate 72, the second vertical plate A103 is equal to the fifth vertical plate 73, the second inclined plate A104 is greater than the fourth inclined plate 74, and the third vertical plate A105 is less than the sixth vertical plate 75. The third inclined plate 72 has a uniform array of through holes 76.

[0045] For the B11 baffle structure:

[0046] The baffle plate B11 includes a first vertical plate B111, a first inclined plate B112, a second vertical plate B113, a second inclined plate B114, and a third vertical plate B115, which are integrally formed and connected sequentially from bottom to top. The first inclined plate B112 is inclined at 45° relative to the first vertical plate B111, and the second inclined plate B114 is inclined at -45° relative to the second vertical plate B113.

[0047] The first particle capture gap 8 and the second particle capture gap 9 are formed between the baffle plate and the regulating plate 7 of this device.

[0048] The first particle capture gap 8 is composed of a baffle plate A10 and an adjusting plate 7. The widths of the first gap A81 (between the first vertical plate A101 and the fourth vertical plate 71), the second gap A82A (between the first inclined plate A102 and the third inclined plate 72), the third gap A83 (between the second vertical plate A103 and the fifth vertical plate 73), the fourth gap A84 (between the second inclined plate A104 and the fourth inclined plate 74), and the fifth gap A85 (between the third vertical plate A105 and the sixth vertical plate 75) gradually decrease from bottom to top.

[0049] The second particle capture gap 9 is composed of a baffle plate B11 and an adjusting plate 7. The widths of the first gap B91 (between the first vertical plate B111 and the fourth vertical plate 71), the second gap B92 (between the first inclined plate B112 and the third inclined plate 72), the third gap B93 (between the second vertical plate B113 and the fifth vertical plate 73), the fourth gap B94 (between the second inclined plate B114 and the fourth inclined plate 74), and the fifth gap B95 (between the third vertical plate B115 and the sixth vertical plate 75) gradually increase from bottom to top.

[0050] The inlet (first gap A81) of the first particle capture gap 8 is relatively wide, enabling it to effectively capture more droplets carried by the rising airflow from the lower part of the spray tower 3. During this process, the multiple bends (45° and -45° inclinations) of the baffle plate A10 and the regulating plate 7 cause the airflow to change direction multiple times within the first particle capture gap 8. This reversing action prolongs the contact time between the particles and the water mist, enhancing the adsorption efficiency of the water mist on the particles, especially the capture of fine particles and droplets.

[0051] After the droplets enter the first isolation and capture gap 8, as the gap width gradually decreases from bottom to top (from the first gap A81 to the fifth gap 85), the airflow channel narrows, the airflow velocity increases, and the probability of collision between particles and the gap wall increases. This design can progressively intercept smaller particles and droplets, achieving a staged filtration effect. The gradually decreasing width structure is similar to a funnel, which can progressively concentrate and capture particles.

[0052] The inlet width of the second particle capture gap 9 (first gap B91) is smaller than that of the inlet of the first particle capture gap 8, resulting in the collection of fewer droplets. However, the smaller inlet design allows the airflow to have a higher initial velocity upon entry, which helps droplets that were not captured by the first particle capture gap 8 to enter.

[0053] Meanwhile, as the gap width gradually increases from bottom to top (from the first gap B91 to the fifth gap B95), the airflow channel widens and the airflow velocity decreases. This gradually increasing design allows the dust-laden gas to diffuse within the gap, resulting in a more uniform distribution of particles and droplets, and preventing particles from escaping due to excessively fast local airflow.

[0054] The gradually widening structure prolongs the residence time of the airflow in the second particle capture gap 9, giving particles more opportunities to come into contact with the water mist sprayed from the through-holes 76 on the regulating plate 7. This is particularly effective for capturing lighter particles, as these particles require a longer adsorption time.

[0055] Furthermore, this device includes a through-hole 76 in the third inclined plate 72, which allows the water mist sprayed by the spray mechanism 4 to permeate from one side of the first particle capturing gap 8 and the second particle capturing gap 9 to the other side through the adjusting plate 7. This permeation makes the water mist distribution within the demisting mechanism 5 more uniform, especially in the central region where the third inclined plate 72 is located. The uniform water mist distribution improves the contact efficiency with particles in the dust-laden airflow, thereby enhancing the dust removal and demisting effects.

[0056] The 45° tilt of the third inclined plate 72 already redirects the airflow, and the through-hole 76 further enhances this effect. Part of the airflow enters from one side through the gap in the through-hole 76, creating localized turbulence or mixing. This airflow disturbance prolongs the contact time between particles and water mist, increasing the probability of particle capture, while preventing the airflow from being too smooth and causing particles to escape.

[0057] After the dust removal structure of this embodiment is put into operation, the dust concentration in the outlet gas is significantly reduced, and the dust removal efficiency and droplet removal rate both reach a high level. Compared with traditional spray towers, this structure improves the overall demisting effect by using the width variation design of the first particle capture gap 8 and the second particle capture gap 9 to capture particles of different sizes in stages.

[0058] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A high-efficiency dust removal structure for graphitization processing, characterized in that: The system includes a dust collection pipe (2) installed at the top of the graphitization furnace (1), one end of which is connected to a spray tower (3); the spray tower (3) is equipped with a spraying mechanism (4) and a demisting mechanism (5); the demisting mechanism (5) includes multiple uniformly arrayed baffles, and baffle gaps (6) are provided between the baffles, one baffle gap (6) is composed of two identical baffles A (10) and baffles B (11); wherein, an adjusting plate (7) is provided between the baffle gaps (6), the adjusting plate (7) and the baffles A (10) form a first particle capture gap (8), and the adjusting plate (7) and the baffles B (11) form a second particle capture gap (9); The inlet of the first particle capture gap (8) is larger than the inlet of the second particle capture gap (9), and the first particle capture gap (8) is formed with a gradually decreasing width according to the number of bends of the baffle plate A (10), while the second particle capture gap (9) is formed with a gradually increasing width according to the number of bends of the baffle plate B (11).

2. The dust removal structure for high-efficiency graphitization processing according to claim 1, characterized in that: The baffle plate A (10) includes a first vertical plate A (101), a first inclined plate A (102), a second vertical plate A (103), a second inclined plate A (104), and a third vertical plate A (105) that are integrally formed and connected from bottom to top. The first inclined plate A (102) is inclined at a 45-degree angle relative to the first vertical plate A (101), and the second inclined plate A (104) is inclined at a negative 45-degree angle relative to the second vertical plate A (103).

3. The dust removal structure for high-efficiency graphitization processing according to claim 2, characterized in that: The adjusting plate (7) includes a fourth vertical plate (71), a third inclined plate (72), a fifth vertical plate (73), a fourth inclined plate (74), and a sixth vertical plate (75) that are integrally formed and connected from bottom to top. The third inclined plate (72) is inclined at a 45-degree angle relative to the fourth vertical plate (71), and the fourth inclined plate (74) is inclined at a negative 45-degree angle relative to the fifth vertical plate (73). The length of the first vertical plate is greater than that of the fourth vertical plate (71), the length of the first inclined plate is less than that of the third inclined plate (72), the second vertical plate is equal to that of the fifth vertical plate (73), the length of the second inclined plate is greater than that of the fourth inclined plate (74), and the length of the third vertical plate is less than that of the sixth vertical plate (75).

4. The dust removal structure for high-efficiency graphitization processing according to claim 3, characterized in that: The first vertical plate A (101) and the fourth vertical plate (71) form a first gap A (81), the first inclined plate A (102) and the third inclined plate (72) form a second gap A (82), the second vertical plate A (103) and the fifth vertical plate (73) form a third gap A (83), the second inclined plate A (104) and the fourth inclined plate (74) form a fourth gap A (84), and the third vertical plate A (105) and the sixth vertical plate (75) form a fifth gap A (85); the widths of the first gap A (81), the second gap A (82), the third gap A (83), the fourth gap A (84), and the fifth gap A (85) gradually decrease.

5. The high-efficiency dust removal structure for graphitization processing according to claim 4, characterized in that: The baffle plate B (11) includes a first vertical plate B (111), a first inclined plate B (112), a second vertical plate B (113), a second inclined plate B (114), and a third vertical plate B (115) that are integrally formed and connected from bottom to top. The first inclined plate B (112) is inclined at a 45-degree angle relative to the first vertical plate B (111), and the second inclined plate B (114) is inclined at a negative 45-degree angle relative to the second vertical plate B (113).

6. The dust removal structure for high-efficiency graphitization processing according to claim 5, characterized in that: The first vertical plate B (111) and the fourth vertical plate (71) form a first gap B (91), the first inclined plate B (112) and the third inclined plate (72) form a second gap B (92), the second vertical plate B (113) and the fifth vertical plate (73) form a third gap B (93), the second inclined plate B (114) and the fourth inclined plate (74) form a fourth gap B (94), and the third vertical plate B (115) and the sixth vertical plate (75) form a fifth gap B (95); the widths of the first gap B (91), the second gap B (92), the third gap B (93), the fourth gap B (94), and the fifth gap B (95) gradually increase.

7. The dust removal structure for high-efficiency graphitization processing according to claim 6, characterized in that: The third inclined plate (72) has an array of through holes (76).

8. The dust removal structure for high-efficiency graphitization processing according to claim 1, characterized in that: The spray tower (3) is also provided with a packing layer, which is located below the spraying mechanism (4).

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