Carbon dry material intensifier preheater
By adopting an upper arc-shaped agitator structure in the carbon dry material preheater, the flow state of the dry material is optimized, solving the problem of insufficient heat exchange between the dry material and the agitator and cylinder, and achieving a more efficient and uniform heating effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI HUAPENG MACHINERY CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-21
AI Technical Summary
In existing carbon dry material preheating devices, the dry material cannot fully contact the agitator and cylinder, resulting in insufficient heat exchange and affecting heating efficiency and uniformity.
Two parallel agitators are installed inside the cylinder, with the axes of the agitators running back and forth. The upper cylinder includes an upper arc segment with an arc angle of 0 < α < 180°. This optimizes the flow of dry material, enhances heat exchange between the dry material and the agitators and the cylinder, and improves the heating effect through a sealed and heat-insulating top cover.
It improves the heating temperature and efficiency of dry materials, ensures heating uniformity, prevents dry material leakage, and enhances heat transfer.
Smart Images
Figure CN224534773U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carbon dry material heating technology, and in particular to a carbon dry material enhanced preheating machine. Background Technology
[0002] In high-end carbon product production lines, preheating of carbon materials is a crucial step before kneading. Currently, before entering the kneader, the dry materials and binders in the carbon materials need to be preheated separately to ensure that both reach the required temperature. This helps achieve more uniform kneading in the subsequent process.
[0003] Related technologies, such as Chinese utility model patent with announcement number CN208340655U, disclose a high-efficiency heating device, including a cylinder body, in which rotating agitators are installed in parallel. The axes of the agitators run in a front-to-back direction and are at the same height. The cross-sectional profile of the inner wall of the cylinder body in the front-to-back direction includes a lower arc segment that corresponds one-to-one with the agitator and is coaxially arranged below the corresponding agitator. The high-efficiency heating device also includes a first heating component for heating the bottom of the cylinder body. The ratio of the length L of the cylinder body in the front-to-back direction to twice the radius R of the lower arc segment, L / 2R, is greater than 2.0 and less than 6.3.
[0004] Regarding the preheating of the aforementioned carbon dry materials, since the dry materials are relatively loose compared to pastes or binders, the relevant technologies have the following drawbacks: Figure 1 As shown, the existing heating device has a straight section between the top cover and the lower arc section of the cylinder. This design results in a gradually increasing distance between the straight section of the cylinder and the rotation range of the agitator. During the rotation of the agitator, the dry material is stirred and heated. The dry material that is far from the rotation range of the agitator cannot be fully stirred, which prevents sufficient contact and exchange between the dry material and the cylinder, the agitator, and among the dry materials themselves during the mixing process. This results in insufficient heat exchange between the dry material and the cylinder, the agitator, and among the dry materials themselves. Utility Model Content
[0005] This invention addresses the shortcomings of existing technologies by providing a carbon dry material enhanced preheating machine.
[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:
[0007] In a first aspect, this utility model discloses a carbon dry material enhanced preheating machine, including a cylinder body. Two stirring blades are installed in parallel inside the cylinder body, and the axes of the two stirring blades run in a front-to-back direction. The cylinder body includes a lower cylinder body located below the axis of the stirring blades and an upper cylinder body located above the axis of the stirring blades. The upper cylinder body includes an upper arc segment, and the vertical cross-sectional profile of the upper arc segment along the axis of the stirring blades is arc-shaped. The arc angle of the upper arc segment is 0 < α < 180°, and the distance between the axes of the two stirring blades is greater than or equal to the sum of the rotation radii of the stirring blades.
[0008] By adopting the above technical solution, after the dry material enters the cylinder, the continuous stirring of the agitator within the cylinder promotes full contact and exchange between the dry material, the cylinder, the agitator, and the dry material itself, thereby improving the preheating efficiency of the dry material. The upper arc section design ensures that the cylinder matches the rotation trajectory of the agitator, concentrating the dry material within the rotational range of the agitator. The rotation of the agitator fully drives the movement of the dry material, optimizing its flow state and thus enhancing the heat exchange efficiency between the dry material, the cylinder, and the agitator. Simultaneously, the optimized flow state of the dry material strengthens the contact and exchange between the dry materials, further improving the heat exchange efficiency and heating uniformity. Through these two aspects, the heat transfer effect is enhanced, increasing the heating temperature and efficiency of the dry material.
[0009] Secondly, this utility model discloses a carbon dry material enhanced preheating machine, including a cylinder body. Two stirring blades are installed in parallel inside the cylinder body, and the axes of the two stirring blades run in a front-to-back direction. The cylinder body includes a lower cylinder body located below the axis of the stirring blades and an upper cylinder body located above the axis of the stirring blades. The upper cylinder body includes an upper arc segment. The vertical cross-sectional profile of the upper arc segment along the axis of the stirring blades is arc-shaped, and the arc angle of the upper arc segment is 0 < α < 170°. The distance between the axes of the two stirring blades is less than the sum of the rotation radii of the stirring blades.
[0010] Furthermore, the upper cylinder body also includes a straight segment, one end of which is connected to the upper arc segment.
[0011] Furthermore, a top cover is provided above the upper cylinder body, and the other end of the straight segment is connected to the top cover.
[0012] By adopting the above technical solution, the dry material will not leak during the mixing process; at the same time, the top cover can seal and insulate the cylinder, thereby further improving the heating effect.
[0013] Furthermore, the arc angle of the upper arc segment is 80 < α < 150°.
[0014] Furthermore, the arc angle of the upper arc segment is 85 ≤ α ≤ 135°.
[0015] Furthermore, the arc angle of the upper arc segment is 90 ≤ α ≤ 120°.
[0016] Furthermore, both the upper and lower cylinders are equipped with heating belts to heat the dry material.
[0017] Furthermore, the axis of the agitator coincides with the center of the upper and lower cylinders. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a heating device in the prior art;
[0019] Figure 2 This is a schematic diagram of the cross-sectional shape of the two stirring blades tangent to each other in the carbon dry material enhanced preheater of Embodiment 1 of this utility model;
[0020] Figure 3 This is a schematic diagram of the cross-sectional shape of the intersection of the rotation radii of the two agitators in the carbon dry material enhanced preheater of Embodiment 2 of this utility model;
[0021] Figure 4 This is a schematic diagram of the upper arc angle α of the carbon dry material enhanced preheater in Embodiment 1 of this utility model when it is 45°.
[0022] Figure 5 This is a schematic diagram of the upper arc angle α of the carbon dry material enhanced preheater in Embodiment 1 of this utility model when it is 135°.
[0023] Explanation of reference numerals in the attached diagram: 1. Top cover; 2. Lower cylinder block; 3. Upper cylinder block; 31. Straight section; 32. Upper arc section; 4. Heating belt. Detailed Implementation
[0024] The principles and features of this utility model are described below with reference to all the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.
[0025] This utility model discloses a carbon dry material enhanced preheating machine.
[0026] Example 1
[0027] Reference Figure 2 , Figure 4 and Figure 5A carbon dry material enhanced preheating machine includes a cylinder body. Two agitators are installed parallel to each other within the cylinder body, with their axes running front-to-back. The axes of the agitators coincide with the centers of the upper cylinder body 3 and the lower cylinder body 2. The cylinder body includes a lower cylinder body 2 located below the axes of the agitators and an upper cylinder body 3 located above the axes of the agitators. The upper cylinder body 3 includes an upper arc segment 32, the vertical cross-sectional profile of which along the axes of the agitators is arc-shaped, with an arc angle θ < α < 180°. The distance between the axes of the two agitators is greater than or equal to the sum of their rotation radii, meaning the rotation radii of the two agitators are tangent. During preheating, the continuous stirring by the agitators within the cylinder body fully drives the dry material to tumble, thereby improving the heat transfer efficiency between the dry material and the cylinder body, the agitators, and the dry material itself, thus increasing the heating efficiency of the dry material.
[0028] After the dry material enters the cylinder, the constant stirring by the agitator promotes uniform heating of the dry material, thereby improving preheating efficiency.
[0029] The upper arc segment 32 is designed to align the cylinder body with the rotation trajectory of the agitator, concentrating the dry material within the agitator's rotational range. The rotation of the agitator effectively drives the movement of the dry material, optimizing its flow and thus enhancing heat exchange efficiency between the dry material, the cylinder body, and the agitator. Simultaneously, the optimized flow of the dry material strengthens contact and exchange between them, further improving heat exchange efficiency and heating uniformity. Through these two effects, heat transfer is enhanced, increasing the heating temperature and efficiency of the dry material.
[0030] In this embodiment, the vertical cross-sectional profile of the lower cylinder 2 along the axis of the agitator is arc-shaped, which is referred to as the lower arc segment for ease of description. The two agitators are symmetrically arranged, that is, the upper arc segment 32 and the lower cylinder 2 are both symmetrically arranged. The two upper arc segments 32 are respectively connected to the corresponding lower arc segments, and the arrangement of the upper arc segments 32 and the lower arc segments matches the rotation trajectory of the agitators. The upper cylinder 3 also includes two straight segments 31, one end of which is connected to the corresponding upper arc segment 32. The straight segments 31 increase the internal space of the upper cylinder 3, providing reasonable and sufficient space for the mixing and movement of dry materials.
[0031] Furthermore, a top cover 1 is provided above the upper cylinder 3, and the two ends of the top cover 1 are respectively connected to two straight segments 31. A feed inlet is provided on the top cover 1 to facilitate feeding. The top cover 1 is designed to prevent leakage of dry materials during the mixing process; at the same time, the top cover 1 can seal and insulate the cylinder to further improve the heating effect.
[0032] Both the upper cylinder 3 and the lower cylinder 2 are equipped with heating belts 4 to heat the dry material.
[0033] In this embodiment, the upper arc segment 32 on the left and the upper arc segment 32 on the right are symmetrically arranged. Taking the upper arc segment 32 on the right as an example, with the right side as 0°, the arc angle of the upper arc segment 32 is 80 < α < 150°. Because of the symmetrical arrangement, the arc angle α of the upper arc segment 32 on the left corresponds to that on the right.
[0034] The arc angle of the upper arc segment 32 is 85 ≤ α ≤ 135°. Because it is set symmetrically on both sides, the arc angle α of the upper arc segment 32 on the left side corresponds to that on the right side, such as... Figure 5 The diagram shown is a schematic diagram when the arc angle α of the upper arc segment 32 is 135°.
[0035] The arc angle of the upper arc segment 32 is 90 ≤ α ≤ 120°. Because it is symmetrically arranged, the arc angle α of the upper arc segment 32 on the left side corresponds to that on the right side, such as... Figure 2 The diagram shown is a schematic diagram of the arc angle α of the upper arc segment 32 being 90°.
[0036] like Figure 4 The diagram shown is a schematic diagram of the arc angle α of the upper arc segment 32 being 45°.
[0037] Example 2
[0038] The main difference between Example 2 and Example 1 lies in the relationship between the distance between the axes of the two agitators and the sum of the rotation radii of the agitators.
[0039] like Figure 3 As shown, a carbon dry material enhanced preheating machine includes a cylinder body. Two agitators are installed in parallel inside the cylinder body, with the axes of the two agitators running in a front-to-back direction. The cylinder body includes a lower cylinder body 2 located below the axes of the agitators and an upper cylinder body 3 located above the axes of the agitators. The upper cylinder body 3 includes an upper arc segment 32. The vertical cross-sectional profile of the upper arc segment 32 along the axes of the agitators is arc-shaped, and the arc angle of the upper arc segment 32 is 0 < α < 170°. The distance between the axes of the two agitators is less than the sum of the rotation radii of the agitators, that is, the rotation radii of the two agitators intersect.
[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A carbon dry material enhanced preheating machine, comprising a cylinder body, wherein two agitators are installed in parallel within the cylinder body, the axes of the two agitators running in a front-to-back direction, the cylinder body comprising a lower cylinder body (2) located below the axes of the agitators and an upper cylinder body (3) located above the axes of the agitators, characterized in that, The upper cylinder body (3) includes an upper arc segment (32), the vertical cross-sectional profile of the upper arc segment (32) along the axis of the agitator is arc-shaped, the arc angle of the upper arc segment (32) is 0 < α < 180°, and the distance between the axes of the two agitators is greater than or equal to the sum of the rotation radii of the agitators.
2. A carbon dry material enhanced preheating machine, comprising a cylinder body, wherein two agitators are installed in parallel within the cylinder body, the axes of the two agitators running in a front-to-back direction, the cylinder body comprising a lower cylinder body (2) located below the axes of the agitators and an upper cylinder body (3) located above the axes of the agitators, characterized in that, The upper cylinder (3) includes an upper arc segment (32), which is arranged along the front and rear direction of the upper cylinder (3) and has a circular arc profile. The arc angle of the upper arc segment (32) is 0 < α < 170°, and the distance between the axes of the two agitators is less than the sum of the rotation radii of the agitators.
3. The carbon dry material enhanced preheating machine according to claim 1 or 2, characterized in that: The upper cylinder body (3) also includes a straight segment (31), one end of which is connected to the upper arc segment (32).
4. The carbon dry material enhanced preheating machine according to claim 3, characterized in that: A top cover (1) is provided above the upper cylinder body (3), and the other end of the straight segment (31) is connected to the top cover (1).
5. The carbon dry material enhanced preheating machine according to claim 1 or 2, characterized in that: The arc angle of the upper arc segment (32) is 80 < α < 150°.
6. The carbon dry material enhanced preheating machine according to claim 5, characterized in that: The arc angle of the upper arc segment (32) is 85 ≤ α ≤ 135°.
7. The carbon dry material enhanced preheating machine according to claim 6, characterized in that: The arc angle of the upper arc segment (32) is 90 ≤ α ≤ 120°.
8. The carbon dry material enhanced preheating machine according to claim 1 or 2, characterized in that: Both the upper cylinder (3) and the lower cylinder (2) are equipped with heating bands (4).
9. The carbon dry material enhanced preheating machine according to claim 1 or 2, characterized in that: The axis of the agitator coincides with the center of the upper cylinder (3) and the lower cylinder (2).