Quartz sand purification furnace
By designing a quartz sand purification furnace with high-purity alumina ceramic fiber material and a national standard steel welding structure, combined with rotating mechanism and frequency conversion speed control driving, the problems of poor high temperature resistance and uneven heat in the prior art are solved, and quartz is realized High-efficiency purification of sand and the production of high-purity quartz sand.
Patent Information
- Application Number
- CN202420772875.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-15
AI Technical Summary
In the existing chlorination and roasting technology of quartz sand, the furnace has poor high temperature resistance and poor insulation performance, resulting in uneven heating during the purification of quartz sand, making it difficult to effectively separate and enrich high-purity quartz sand.
A quartz sand purification furnace including a vertical heating furnace and a horizontal cooling furnace was designed, using high-purity alumina ceramic fiber material and national standard steel welding structure, equipped with a rotating mechanism and a variable frequency speed control drive motor, and driving quartz tubes through chain transmission. Rotate to ensure even heating and cooling.
It realizes the stable and high temperature resistance of the furnace body structure, improves the insulation and insulation performance, ensures uniform heating and cooling of quartz sand, and improves the purification efficiency and product quality of high-purity quartz sand.
Smart Images
Figure CN222181831U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fluidized bed roasting, in particular to a quartz sand purification furnace. Background Art
[0002] Chlorination roasting process, chlorination roasting is also called chlorination degassing. Chlorination roasting of quartz sand is one of the technologies in the purification process of high-purity quartz sand. It is mainly aimed at the treatment of lattice impurities in quartz sand to obtain high-purity quartz sand with a SiO2 weight content greater than 99.9%. The quartz sand chlorination roasting technology refers to the process of converting certain components in mineral raw materials into gaseous or condensed chlorides under the action of a chlorinating agent under certain conditions, thereby separating or enriching the components. The entire furnace body for quartz sand hydrogen chloride purification is heavy, has poor high temperature resistance, and has relatively poor thermal insulation performance. At the same time, it is easy to cause uneven heating of quartz sand during the purification process. Utility Model Content
[0003] The purpose of the utility model is to provide a quartz sand purification furnace in order to solve the above problems.
[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:
[0005] A quartz sand purification furnace comprises a vertical heating furnace, a horizontal heating furnace is arranged at the feeding end of the vertical heating furnace, a horizontal cooling furnace is arranged at the sand discharge end of the vertical heating furnace, a collecting mechanism for collecting hydrogen chloride gas is arranged between the horizontal heating furnace and the vertical heating furnace, and two symmetrical quartz tubes are arranged in the horizontal heating furnace, the vertical heating furnace and the horizontal cooling furnace, and a rotating mechanism for driving the quartz tube to rotate is arranged in the horizontal heating furnace and the horizontal cooling furnace;
[0006] The rotating mechanism includes two groups of driven friction wheels, three groups of active friction wheels are arranged between the two groups of driven friction wheels, a rotating shaft for support is arranged in the center of the three groups of active friction wheels, a driven sprocket is fixed to the input end of the rotating shaft, and an auxiliary shaft is arranged between the two rotating shafts, an auxiliary sprocket is fixed to the input end of the auxiliary shaft, a driving motor for driving the rotation thereof is arranged between the two auxiliary shafts, a driving sprocket is arranged on the rotating part of the driven motor, and the driven sprocket, the auxiliary sprocket and the driving sprocket are connected by a chain.
[0007] Preferably: a high temperature guard plate for preventing high temperature burns is installed on the outside of the horizontal heating furnace, the horizontal heating furnace is welded with national standard steel and steel plate, and the shell part is provided with electric heating element lead-out rods and ceramic seats distributed centrally.
[0008] Preferably: the furnace of the horizontal heating furnace is made of high-purity alumina ceramic fiber material, and the box body plate is laser cut with 2mm thick steel plate, with heat dissipation holes opened at the front and rear, and the drive motor adopts a variable frequency speed regulation acceleration and reduction machine.
[0009] Preferably, the horizontal cooling furnace comprises a cooling furnace body, and a cooling tube for cooling the two quartz tubes is arranged inside the cooling furnace body.
[0010] Preferably, the cooling furnace body is formed of 304 stainless steel folded plate, an elbow collecting pipe corresponding to the sand outlet pipe of the vertical heating furnace is arranged at one end of the cooling furnace body, and a plug plate which can change the flow rate of quartz sand by radial movement is arranged at the sand outlet pipe of the vertical heating furnace.
[0011] Preferably: an inlet pipe is arranged at the top of the vertical heating furnace at the sand outlet pipe of the horizontal heating furnace, and a joint for feeding hydrogen chloride gas into the quartz tube is installed at the bottom of the vertical heating furnace.
[0012] The beneficial effects compared with the prior art are as follows:
[0013] 1. The furnace frame is welded with national standard steel and steel plate, the structure is firm and reliable, and all welds are even and smooth, without defects such as pores, inclusions, and unfused, with good overall strength, not easy to deform, and smooth and clean appearance;
[0014] 2. The furnace is made of high-purity alumina ceramic fiber material; it has the advantages of light weight, high temperature resistance, small heat capacity, good thermal insulation performance, good high temperature insulation performance, and non-toxicity;
[0015] 3. The rotating mechanism is made of high-quality steel to prevent metal dust from contaminating quartz products. The mechanical structure uses a variable frequency speed control reducer. The transmission shaft directly connected to the reducer drives the chain transmission mechanism, and then the chain drive drives the friction wheel to move. The speed is steplessly controlled. The friction wheel uses high-temperature resistant bearings and can withstand high temperatures of 500°C. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0017] Figure 1 It is a structural schematic diagram of a quartz sand purification furnace described in the utility model;
[0018] Figure 2 It is a partial cross-sectional view of a rotating mechanism of a quartz sand purification furnace described in the utility model;
[0019] Figure 3 This is a diagram of the coordination between the plug plate of a quartz sand purification furnace and the sand outlet pipe of a vertical heating furnace described in the utility model;
[0020] Figure 4 It is a partial cross-sectional view of a horizontal cooling furnace of a quartz sand purification furnace described in the utility model.
[0021] The following are the descriptions of the reference numerals:
[0022] 1. High-temperature guard plate; 2. Horizontal heating furnace; 3. Rotating mechanism; 4. Collecting mechanism; 5. Vertical heating furnace; 6. Inlet pipe; 7. Horizontal cooling furnace; 8. Elbow collecting pipe; 9. Quartz tube; 31. Driven friction wheel; 32. Active friction wheel; 33. Driven sprocket; 34. Auxiliary sprocket; 35. Active sprocket; 36. Driving motor; 37. Chain; 71. Cooling furnace body; 72. Cooling pipe. DETAILED DESCRIPTION
[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions 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 addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0025] The utility model is further described below in conjunction with the accompanying drawings:
[0026] like Figure 1-Figure 4As shown, a quartz sand purification furnace includes a vertical heating furnace 5, a horizontal heating furnace 2 is provided at the feeding end of the vertical heating furnace 5, a horizontal cooling furnace 7 is provided at the sand discharge end of the vertical heating furnace 5, a collecting mechanism 4 for collecting hydrogen chloride gas is provided between the horizontal heating furnace 2 and the vertical heating furnace 5, and two symmetrical quartz tubes 9 are provided in the horizontal heating furnace 2, the vertical heating furnace 5 and the horizontal cooling furnace 7, and a rotating mechanism 3 for driving the quartz tube 9 to rotate is provided in the horizontal heating furnace 2 and the horizontal cooling furnace 7. The top of the heating furnace 5 is provided with an introduction pipe 6 at the sand outlet pipe of the horizontal heating furnace 2. A joint for feeding hydrogen chloride gas into the quartz tube 9 is installed at the bottom of the vertical heating furnace 5. A high-temperature protective plate 1 for preventing high-temperature burns is installed on the outside of the horizontal heating furnace 2. The horizontal heating furnace 2 is welded with national standard steel and steel plate, and the shell part is provided with a ceramic seat for the lead-out rod of the electric heating element. The furnace of the horizontal heating furnace 2 is made of high-purity alumina ceramic fiber material, and the box plate is laser cut with a 2mm thick steel plate, and heat dissipation holes are opened at the front and back.
[0027] In this embodiment: the rotating mechanism 3 includes two groups of driven friction wheels 31, three groups of active friction wheels 32 are arranged between the two groups of driven friction wheels 31, and a rotating shaft for support is arranged in the center of the three groups of active friction wheels 32, a driven sprocket 33 is fixed to the input end of the rotating shaft, and an auxiliary shaft is arranged between the two rotating shafts, an auxiliary sprocket 34 is fixed to the input end of the auxiliary shaft, and a driving motor 36 for driving the rotation thereof is arranged between the two auxiliary shafts, and a driving sprocket 35 is arranged on the rotating part of the driven motor 36, and the driven sprocket 33, the auxiliary sprocket 34 and the driving sprocket 35 are connected by a chain 37, and the driving motor 36 adopts a variable frequency speed regulation acceleration and reduction machine, and the driving sprocket 35 is driven to rotate by the rotating part of the driving motor 36, and the driven sprocket 33 and the auxiliary sprocket 34 are driven to rotate synchronously through the transmission of the chain 37, and then the driven sprocket 33 drives the active friction wheel 32 through the rotating shaft to rotate the driven friction wheel 31 and the quartz tube 9.
[0028] In this embodiment: the horizontal cooling furnace 7 includes a cooling furnace body 71, and a cooling pipe 72 for cooling the two quartz tubes 9 is arranged inside the cooling furnace body 71. The cooling furnace body 71 is formed by a 304 stainless steel folded plate. An elbow collecting pipe 8 corresponding to the sand outlet pipe of the vertical heating furnace 5 is arranged at one end of the cooling furnace body 71, and a plug plate that can change the flow rate of the quartz sand by radial movement is arranged at the sand outlet pipe of the vertical heating furnace 5. The cooling pipe 72 in the cooling furnace body 71 is used to cool the quartz tube 9 and the quartz sand therein, and the elbow collecting pipe 8 is used to collect the quartz sand flowing out of the vertical heating furnace 5 and introduce it into the cooling furnace body 71.
[0029] Working principle: When in use, the quartz sand to be purified is fed into the two quartz tubes 9 of the horizontal heating furnace 2. At this time, the driving motor 36 drives the active sprocket 35 to rotate, and then the chain 37 is used to drive the driven sprocket 33 and the auxiliary sprocket 34 on the rotating shaft and the auxiliary shaft to rotate synchronously, and then the rotating shaft drives the active friction wheel 32 on its outer side to rotate. The active friction wheel 32 and the driven friction wheel 31 are fitted together to drive the two quartz tubes 9 to rotate, so that the quartz sand in the quartz tube 9 is evenly heated;
[0030] The quartz sand sent out from the sand outlet pipe of the horizontal heating furnace 2 enters into the two quartz tubes 9 of the vertical heating furnace 5 through the introduction pipe 6. At this time, the quartz sand is heated by the vertical heating furnace 5. In addition, the hydrogen chloride gas used in the whole purification process is sent into the quartz tube 9 through the lower end joint of the vertical heating furnace 5, and the hydrogen chloride gas overflowing from the introduction pipe 6 is sucked away by the collecting mechanism 4 and processed; the speed of the quartz sand in the vertical heating furnace 5 falling from the quartz tube 9 is controlled by pulling out or inserting the plug plate of the sand outlet pipe of the vertical heating furnace 5;
[0031] The quartz sand sent out from the sand outlet pipe of the vertical heating furnace 5 enters the quartz tube 9 of the horizontal cooling furnace 7 through the elbow collecting pipe 8, and the quartz sand in the quartz tube 9 is cooled by the water flowing in the cooling pipe 72.
[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A quartz sand purification furnace, comprising a vertical heating furnace (5), wherein a horizontal heating furnace (2) is provided at a feeding end of the vertical heating furnace (5), a horizontal cooling furnace (7) is provided at a sand discharge end of the vertical heating furnace (5), and a collecting mechanism (4) for collecting hydrogen chloride gas is provided between the horizontal heating furnace (2) and the vertical heating furnace (5), characterized in that: The horizontal heating furnace (2), the vertical heating furnace (5) and the horizontal cooling furnace (7) are each provided with two symmetrical quartz tubes (9), and the horizontal heating furnace (2) and the horizontal cooling furnace (7) are each provided with a rotating mechanism (3) for driving the quartz tubes (9) to rotate; The rotating mechanism (3) comprises two groups of driven friction wheels (31), three groups of active friction wheels (32) are arranged between the two groups of driven friction wheels (31), a rotating shaft for support is arranged at the center of the three groups of active friction wheels (32), a driven sprocket (33) is fixed at the input end of the rotating shaft, and an auxiliary shaft is arranged between the two rotating shafts, an auxiliary sprocket (34) is fixed at the input end of the auxiliary shaft, a driving motor (36) for driving the auxiliary shaft to rotate is arranged between the two auxiliary shafts, a driving sprocket (35) is arranged at the rotating part of the driving motor (36), and the driven sprocket (33), the auxiliary sprocket (34) and the driving sprocket (35) are connected by a chain (37).
2. A quartz sand purification furnace according to claim 1, characterized in that: A high-temperature protective plate (1) for preventing high-temperature burns is installed on the outside of the horizontal heating furnace (2). The horizontal heating furnace (2) is welded with national standard steel and steel plates, and the shell part is provided with electric heating element lead-out rods and ceramic seats distributed in a centralized manner.
3. A quartz sand purification furnace according to claim 1, characterized in that: The furnace of the horizontal heating furnace (2) is made of high-purity alumina ceramic fiber material, and the box body plate is made of 2 mm thick steel plate laser cut, with heat dissipation holes opened at the front and back, and the drive motor (36) adopts a variable frequency speed regulation acceleration and reduction gear.
4. A quartz sand purification furnace according to claim 1, characterized in that: The horizontal cooling furnace (7) comprises a cooling furnace body (71), and a cooling tube (72) for cooling the two quartz tubes (9) is arranged inside the cooling furnace body (71).
5. A quartz sand purification furnace according to claim 4, characterized in that: The cooling furnace body (71) is formed by folding a 304 stainless steel plate. An elbow collecting pipe (8) corresponding to the sand outlet pipe of the vertical heating furnace (5) is arranged at one end of the cooling furnace body (71). The sand outlet pipe of the vertical heating furnace (5) is provided with a plug plate that can change the flow speed of the quartz sand by radial movement.
6. A quartz sand purification furnace according to claim 1, characterized in that: An introduction pipe (6) is arranged at the top of the vertical heating furnace (5) at the sand outlet pipe of the horizontal heating furnace (2), and a joint for feeding hydrogen chloride gas into the quartz tube (9) is installed at the bottom of the vertical heating furnace (5).