A quartz tube uniform roasting furnace
The design of spiral heating tubes and detachable support tubes solves the problem of uneven heating of quartz sand in quartz tube calcining furnaces, achieving uniform heating and convenient cleaning of quartz sand, and improving the practicality of calcining furnaces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIANYUNGANG DONGHAI HONGWEI QUARTZ PROD CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-24
AI Technical Summary
In existing quartz tube roasting furnaces, quartz sand tends to accumulate inside the tubes, leading to uneven heating and affecting the purification effect.
The design employs a spiral heating tube and a detachable support tube. A spiral plate is provided on the outside of the support tube. The support tube and spiral plate are driven to rotate by a servo motor, so that the quartz sand is in uniform contact with the inner wall of the quartz pipe. The flow of quartz sand is controlled by a feed baffle and a limiting baffle.
It achieves uniform heating of quartz sand, improves the practicality and heating efficiency of the roasting furnace, and facilitates cleaning and control of the roasting degree.
Smart Images

Figure CN224552084U_ABST
Abstract
Description
Technical Field
[0001] This utility model application relates to the field of roasting furnace technology, specifically a quartz tube uniform roasting furnace. Background Technology
[0002] A quartz tube calcining furnace is a device specifically designed for heating quartz sand. It mainly consists of a quartz tube, heating elements, and a control system. The heating elements heat the quartz tube, raising its internal temperature. When the quartz sand passes through the quartz tube, it is subjected to high temperatures, which removes impurities and moisture, thereby increasing the purity of the quartz sand. It is used in processes such as purifying quartz sand, removing impurities, and reducing moisture content.
[0003] In existing quartz tube uniform calcination furnaces, after the quartz sand is poured into the quartz tube, it tends to accumulate at the bottom of the tube, preventing the quartz sand from making sufficient contact with the inner wall of the quartz tube. This results in uneven heating of the quartz sand, which affects the subsequent purification effect and reduces the practicality of the calcination furnace. Summary of the Invention
[0004] To address the problem of uneven heating of quartz sand inside existing quartz tube roasting furnaces, this invention provides a uniform quartz tube roasting furnace to solve the aforementioned problem.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A quartz tube uniform calcination furnace includes a furnace body and a quartz tube. A spiral heating tube is sleeved on the outside of the quartz tube and installed inside the furnace body for heating the quartz tube. Fixed flanges are fixed at both ends of the quartz tube and are bolted to the furnace body. A support tube is detachably and rotatably sleeved inside the quartz tube. A flow cavity is formed between the outside of the support tube and the inner wall of the quartz tube. A spiral plate is fixed on the outer surface of the support tube.
[0006] Furthermore, a limiting baffle is fixed to the outer surface of the outer end of the quartz pipe extending from the supporting tube, and a feeding flange is fixed to the fixing flange on the side of the limiting baffle, with a feeding port opened at the top of the feeding flange.
[0007] Furthermore, the outer diameter of the limiting baffle is larger than the outer diameter of the feeding enclosure, and the side of the limiting baffle slides against the side wall of the feeding enclosure.
[0008] Furthermore, a servo motor is installed at the other end of the support tube extending to the outside of the quartz tube. A fixing plate is fixed at the output end of the servo motor. A limit block is fixed on the side of the fixing plate near the support tube. A fixing sleeve is sleeved on the outside of the limit block. Fixing screws are fixed on the side walls of the fixing sleeves on both sides of the limit block. Nuts are threaded onto the ends of the two fixing screws that extend through the outside of the fixing plate.
[0009] Furthermore, a connecting frame is installed at the bottom of the servo motor, and the top surface of the connecting frame is fixedly installed on the bottom surface of the support plate by bolts. The support plate is fixed to the side wall of the roasting furnace body.
[0010] Furthermore, the fixing plates on both sides of the limiting insert are provided with fixing holes that cooperate with the fixing sleeve, and the fixing sleeve is provided with a rectangular groove that cooperates with the limiting insert.
[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, the quartz sand is supported and limited by the support tube, so that the quartz sand can be evenly attached to the inner wall of the quartz tube, thereby ensuring that the quartz sand is heated evenly and facilitating the loading and unloading of quartz sand during the calcination process. This solves the problem of uneven heating of quartz sand inside the tube when using existing quartz tube calcination furnaces, and improves the practicality of the calcination furnace.
[0012] 2. In this utility model, the detachable design of the support tube makes it easy to disassemble and clean the support tube after roasting. It can also be adjusted according to the thickness of the quartz sand that fits the quartz tube during roasting, thereby making it easier to control the degree of roasting and further improving the practicality of the roasting furnace. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a three-dimensional structural diagram of a roasting furnace according to an embodiment of this application; Figure 2 yes Figure 1 A schematic cross-sectional view of a partial structure of the roasting furnace in the illustrated embodiment; Figure 3 yes Figure 1 A schematic diagram of the partial structure after disassembly in the embodiment shown.
[0015] The meanings of the reference numerals in the attached diagram are as follows: 1. Main body of the roasting furnace; 2. Quartz pipe; 3. Fixed flange; 4. Support pipe; 5. Flow chamber; 6. Spiral plate; 7. Feeding enclosure plate; 8. Feed inlet; 9. Limiting baffle; 10. Servo motor; 11. Connecting frame; 12. Support plate; 13. Fixed plate; 14. Limiting insert; 15. Fixed sleeve plate; 16. Fixed screw. Detailed Implementation
[0016] To make the purpose, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0017] Reference Figure 1 , Figure 2 and Figure 3 A quartz tube uniform calcination furnace includes a furnace body 1 and a quartz tube 2. A spiral heating tube is sleeved on the outside of the quartz tube 2 and installed inside the furnace body 1 to heat the quartz tube 2. Fixed flanges 3 are fixed at both ends of the quartz tube 2 and are bolted to the furnace body 1. A support tube 4 is detachably and rotatably sleeved inside the quartz tube 2. A limit baffle 9 is fixed to the outer surface of the outer end of the support tube 4. The outer diameter of the limit baffle 9 is larger than the outer diameter of the feed baffle 7. The side of the limit baffle 9 slides against the side wall of the feed baffle 7. The feed baffle 7 is fixed on the fixed flange 3 on the side of the limit baffle 9. A feed port 8 is opened at the top of the feed baffle 7. A flow cavity 5 is formed between the outer side of the support tube 4 and the inner wall of the quartz tube 2. A spiral plate 6 is fixed to the outer surface of the support tube 4.
[0018] Specifically, when heating the quartz sand, the quartz sand is poured into the flow chamber 5 through the feed port 8. At the same time, the servo motor 10 is turned on, which drives the support tube 4 to rotate. When the support tube 4 rotates, it drives the spiral plate 6 to rotate. When the spiral plate 6 rotates, it rotates the poured quartz sand into the quartz pipe 2, so that the quartz sand can be heated evenly. After heating, it is discharged through the end of the flow chamber 5 away from the feed port 8.
[0019] As an optimization solution, such as Figure 2 and Figure 3As shown, a servo motor 10 is installed at the other end of the support tube 4 extending to the outside of the quartz tube 2. A connecting frame 11 is installed at the bottom of the servo motor 10. The top surface of the connecting frame 11 is fixed to the bottom surface of the support plate 12 by bolts. The support plate 12 is fixed to the side wall of the roasting furnace body 1. A fixing plate 13 is fixed at the output end of the servo motor 10. A limit plug 14 is fixed on the side of the fixing plate 13 near the support tube 4. Fixing holes that cooperate with fixing sleeves 15 are opened in the fixing plates 13 on both sides of the limit plug 14. A rectangular groove that cooperates with the limit plug 14 is opened in the fixing sleeve 15. The fixing sleeve 15 is sleeved on the outside of the limit plug 14. Fixing screws 16 are fixed on the side walls of the fixing sleeves 15 on both sides of the limit plug 14. Nuts are threaded onto one end of the two fixing screws 16 extending through the outside of the fixing plate 13.
[0020] Specifically, when the main body 1 of the roasting furnace is running, the servo motor 10 drives the fixed plate 13 to rotate. The fixed plate 13 drives the support tube 4 to rotate through the fixed sleeve 15. When the support tube 4 rotates, it drives the spiral plate 6 to rotate. When it is necessary to separate the support tube 4, the nut on the fixed screw 16 is turned to release the nut's limit on the support tube 4. The support tube 4 is pulled out from the end of the limit baffle 9, and the support tube 4 can be separated from the quartz tube 2. When it is necessary to reinstall, the support tube 4 is inserted into the quartz tube 2 along the feed port 8, so that the fixed sleeve 15 passes through the fixed plate 13 and is fixed by the nut.
[0021] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0022] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A quartz tube uniform calcination furnace, characterized in that: The furnace includes a roasting furnace body (1) and a quartz pipe (2). A spiral heating tube is sleeved on the outside of the quartz pipe (2). The spiral heating tube is installed inside the roasting furnace body (1) to heat the quartz pipe (2). Fixed flanges (3) are fixed at both ends of the quartz pipe (2). The fixed flanges (3) are fixed to the roasting furnace body (1) by bolts. A support tube (4) is detachably and rotatably sleeved inside the quartz pipe (2). A flow cavity (5) is formed between the outside of the support tube (4) and the inner wall of the quartz pipe (2). A spiral plate (6) is fixed on the outer surface of the support tube (4).
2. The quartz tube uniform calcination furnace according to claim 1, characterized in that: The support tube (4) extends to the outer surface of the outer end of the quartz tube (2) and a limiting baffle (9) is fixed thereon. A feed enclosure (7) is fixed on the fixing flange (3) on the side of the limiting baffle (9). A feed port (8) is opened on the top of the feed enclosure (7).
3. The quartz tube uniform calcination furnace according to claim 2, characterized in that: The outer diameter of the limiting baffle (9) is larger than the outer diameter of the feeding enclosure (7), and the side of the limiting baffle (9) slides against the side wall of the feeding enclosure (7).
4. The quartz tube uniform calcination furnace according to claim 1, characterized in that: A servo motor (10) is installed at the other end of the support tube (4) extending to the outside of the quartz tube (2). A fixing plate (13) is fixed at the output end of the servo motor (10). A limit plug (14) is fixed on the side of the fixing plate (13) near the support tube (4). A fixing sleeve (15) is sleeved on the outside of the limit plug (14). Fixing screws (16) are fixed on the side walls of the fixing sleeves (15) on both sides of the limit plug (14). Nuts are threaded onto the end of each of the two fixing screws (16) extending through to the outside of the fixing plate (13).
5. The quartz tube uniform calcination furnace according to claim 4, characterized in that: The servo motor (10) is equipped with a connecting frame (11) at the bottom. The top surface of the connecting frame (11) is fixedly installed on the bottom surface of the support plate (12) by bolts. The support plate (12) is fixed on the side wall of the roasting furnace body (1).
6. The quartz tube uniform calcination furnace according to claim 4, characterized in that: The fixing plates (13) on both sides of the limiting plug (14) are provided with fixing holes that cooperate with the fixing sleeve (15), and the fixing sleeve (15) is provided with a rectangular groove that cooperates with the limiting plug (14).