A high-temperature sand baking device with a stirring and dispersing component

Abstract

This invention discloses a high-temperature sand roasting device with a stirring and dispersing component, relating to the field of quartz sand processing technology. It includes a base, a support plate, a fixing plate, an electric push rod, and an insulation shell. An electric push rod is fixed to one side of the top of the base, and a support plate is fixed to the other side. This invention utilizes long and short dispersing rods in conjunction with wedge-shaped dispersing teeth to continuously tumble and shear the quartz sand inside the roasting cylinder, effectively breaking up high-temperature sand agglomerates, improving the uniformity of sand heating, and preventing the phenomenon of external burning and internal dampness. During unloading, the dispersing motor power is reused, and a half-gear and return spring linkage mechanism drives the anti-blocking rod to reciprocate and clear the discharge pipe, eliminating the need for an additional power source. The equipment has a compact structure and, with the electric push rod, enables switching between horizontal pressure roasting and inclined unloading modes, reducing downtime for cleaning and improving the overall production efficiency of quartz sand roasting.

Description

Technical Field

[0001] This invention relates to the field of quartz sand processing technology, and in particular to a high-temperature sand baking device with a stirring and dispersing component. Background Technology

[0002] Quartz sand refers to quartz particles made from natural quartz stone through crushing, screening and other processes. It is a hard, wear-resistant and chemically stable silicate mineral. In the field of deep processing, quartz sand often needs to be roasted at high temperature to remove moisture, organic matter and impurities from the raw material and improve the purity of the sand. A sand-baking device for quartz sand, disclosed in publication number CN103113014A, includes a sand-baking box mounted on a support and tilted downwards. The bottom of the output end of the sand-baking box is hinged to the support, and the bottom of the input end of the sand-baking box is fixedly connected to the support via an angle lifter. At least two quartz tubes are arranged side-by-side inside the sand-baking box, with both ends of the quartz tubes extending out of the box. Heating coils are wound around the quartz tubes inside the box. A heat-insulating material layer is provided between the quartz tubes and the sand-baking box. Quartz tube rotating mechanisms are respectively provided on the quartz tubes outside both ends of the sand-baking box. A feeding device is provided on the input side of the sand-baking box, including a hopper and a feeder below the hopper, which is connected to the quartz tubes. This invention achieves a conversion from external heating to internal heating, fully utilizing thermal energy, improving efficiency, saving energy, improving the environment, and enhancing product quality, thus realizing comprehensive economic, social, and environmental benefits.

[0003] However, existing sand-baking devices for quartz sand still have the following drawbacks: The existing technology relies on a rotating quartz tube mechanism to rotate and agitate the sand, attempting to make the quartz sand heat up evenly. However, in actual use, the sand is prone to agglomeration under high temperature, resulting in uneven heating inside the sand clumps, leading to problems such as burnt exterior and wet interior, inconsistent baking degree, and large sand clumps easily clogging the discharge port, affecting continuous production. The device does not have an active unblocking structure for the discharge port, requiring manual cleaning when blockage occurs, reducing production efficiency. At the same time, the equipment's exhaust structure has no filtration function, and the dust and impurities generated during baking are directly discharged, causing environmental pollution and causing fine quartz sand particles to be lost with the exhaust gas, wasting sand resources.

[0004] Therefore, we propose a high-temperature sand baking device with a stirring and dispersing component to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a high-temperature sand baking device with a stirring and dispersing component, so as to solve the problems mentioned in the background art of existing sand baking devices for quartz sand, such as sand agglomeration at high temperatures, easy blockage of the discharge port, and lack of filtration treatment for exhaust gas, which affect product quality and continuous production.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-temperature sand-baking device with a stirring and dispersing component, comprising a base, a support plate, a fixing plate, an electric push rod, and a heat-insulating shell. An electric push rod is fixed to one side of the top of the base, and a support plate is fixed to the other side of the top of the base. One side of the bottom of the heat-insulating shell is hinged to the support plate via the fixing plate, and the other side of the bottom of the heat-insulating shell is hinged to the output end of the electric push rod. A baking cylinder is fixed inside the heat-insulating shell, and a tungsten gold carbon fiber heating coil is embedded inside the baking cylinder. A feed pipe is connected to one side of the top of the baking cylinder, and a discharge pipe is connected to one side of the bottom of the baking cylinder. An exhaust pipe is connected to the top of the baking cylinder on the side of the feed pipe. A temperature sensor is mounted on the inner wall of the baking cylinder. The baking cylinder is equipped with a dispersing mechanism inside. One end of the baking cylinder is fixed with a fixing frame, and the other side of the baking cylinder is fixed with a protective frame. The exhaust pipe extends to the outside of the insulation shell and is equipped with a filtering mechanism.

[0007] Furthermore, the filtering mechanism includes a threaded block, which is threadedly connected to the end of the exhaust pipe. A filter frame is fixed to the top of the threaded block, and a second filter screen and a first filter screen are fixed inside the filter frame from top to bottom.

[0008] Furthermore, the first filter screen is a coarse filter screen, and the second filter screen is an activated carbon filter screen.

[0009] Furthermore, the dispersing mechanism includes a dispersing motor, which is disposed inside the fixed frame. The output end of the dispersing motor is fixedly connected to a dispersing shaft, and a number of sets of long dispersing rods and short dispersing rods are fixed at equal intervals along the length direction of the dispersing shaft.

[0010] Furthermore, each group of long and short dispersing rods is symmetrically arranged in twos, and the long and short dispersing rods are arranged in an alternating pattern.

[0011] Furthermore, the ends of the long and short dispersing rods are fixed with dispersing teeth, which are wedge-shaped pointed teeth with the tips of the teeth facing the inner wall of the baking cylinder.

[0012] Furthermore, a half gear is fixedly sleeved on the outer side of the shaft segment extending into the protective frame of the dispersing shaft. A lifting gear plate meshes with one side of the half gear. A fixing column is fixed on the inner wall of the protective frame. A telescopic column is slidably arranged inside the fixing column. A limit block is fixed at the top of the telescopic column. The bottom end of the telescopic column is fixedly connected to the top end of the lifting gear plate. A lifting rod is fixed at the bottom end of the lifting gear plate. An anti-blocking rod is fixed at the bottom end of the lifting rod. The anti-blocking rod is located inside the feeding pipe. A return spring is sleeved on the outer side of the telescopic column.

[0013] Furthermore, a guide block is fixed to the side of the lifting toothed plate facing the inner wall of the protective frame, and a guide groove is provided on the inner wall of the protective frame to slide with the guide block. The lifting toothed plate forms a vertical sliding guide structure through the guide block and the guide groove.

[0014] Furthermore, one end of the return spring abuts against the limiting block, and the other end abuts against the inner wall of the fixing column, and a protective bushing is fitted on the outer side of the return spring.

[0015] Furthermore, a PLC controller is mounted on the top of the base, and the PLC controller is electrically connected to the electric push rod, the disintegration motor of the disintegration mechanism, and the temperature sensor.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the high-temperature sand baking device with stirring and dispersing components not only has the stirring and dispersing function, but also realizes the exhaust filtration function; 1. By using long and short dispersing rods in conjunction with wedge-shaped dispersing teeth, the quartz sand is continuously turned and sheared inside the baking cylinder, effectively breaking up high-temperature sand agglomerates, improving the uniformity of sand heating, and avoiding the phenomenon of external burning and internal dampness. During unloading, the dispersing motor power is reused, and the anti-blocking rod is driven to reciprocate to clear the discharge pipe through the linkage mechanism of half gear and return spring. No additional power source is required. The equipment has a compact structure. With the help of electric push rod, the horizontal pressure baking and tilted unloading modes of the cylinder can be switched, reducing downtime for cleaning and improving the overall production efficiency of quartz sand baking. 2. By adding a threaded, detachable filter mechanism, the exhaust gas generated by high-temperature roasting first passes through a coarse filter to trap fine quartz sand particles, and then passes through an activated carbon filter to adsorb the odor of the flue gas. This not only reduces environmental pollution caused by dust emissions, but also recovers fine sand and reduces raw material loss. The filter mechanism uses a threaded block to connect the exhaust pipe, which is convenient to disassemble and install, and easy to clean and replace the filter screen without complicated disassembly tools. It is compatible with the mixing and dispersing and linkage anti-clogging structure, further improving the environmental performance and operation and maintenance convenience of the entire sand roasting device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the front cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the tilted structure of the present invention; Figure 4 This is a side cross-sectional view of the protective frame of the present invention; Figure 5 This is a three-dimensional structural diagram of the dispersing mechanism of the present invention; Figure 6 This is a three-dimensional structural diagram of the lifting tooth plate of the present invention; Figure 7 This is a three-dimensional structural diagram of the fixed column cross-section of the present invention; Figure 8 This is a three-dimensional structural diagram of the filtration mechanism of the present invention.

[0019] The following are the annotations in the diagram: 1. Base; 2. Support plate; 3. Fixing plate; 4. Electric push rod; 5. Insulation shell; 6. Fixing frame; 7. Feed pipe; 8. Filtering mechanism; 801. Filtering frame; 802. Second filter screen; 803. First filter screen; 804. Threaded block; 9. Protective frame; 10. Feeding pipe; 11. Dispersing mechanism; 1101. Dispersing motor; 1102. Fixing column; 1103. Lifting rod; 1104. Anti-blocking rod; 1105. Guide groove; 1106. Half gear; 1107. Long dispersing rod; 1108. Short dispersing rod; 1109. Dispersing shaft; 1110. Telescopic column; 1111. Guide block; 1112. Lifting toothed plate; 1113. Return spring; 1114. Limiting block; 12. Temperature sensor; 13. Exhaust pipe; 14. Baking cylinder; 15. Tungsten carbide carbon fiber heating coil. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-8 The present invention provides the following technical solution: Example 1: To address the problem of easy agglomeration under high temperatures in existing technologies, the following technical solution is disclosed. Please refer to the following for details. Figure 2 , Figure 4 , Figure 5As shown, a high-temperature sand-baking device with a stirring and dispersing component includes a base 1, a support plate 2, a fixing plate 3, an electric push rod 4, and a heat-insulating shell 5. A PLC controller is mounted on the top of the base 1, and the PLC controller is electrically connected to the electric push rod 4, the dispersing motor 1101 of the dispersing mechanism 11, and a temperature sensor 12. The electric push rod 4 is fixed to one side of the top of the base 1, and the support plate 2 is fixed to the other side of the top of the base 1. One side of the bottom of the heat-insulating shell 5 is hinged to the support plate 2 via the fixing plate 3, and the other side of the bottom of the heat-insulating shell 5 is hinged to the output end of the electric push rod 4. A baking cylinder 14 is fixed inside the heat-insulating shell 5, and a tungsten gold carbon fiber heating coil 15 is embedded inside the baking cylinder 14. A feed pipe 7 is connected to one side of the top of the baking cylinder 14, and a discharge pipe 10 is connected to one side of the bottom of the baking cylinder 14. The top of the baking cylinder 14 on one side of the feed pipe 7 is connected to the exhaust pipe 13. The inner wall of the baking cylinder 14 is equipped with a temperature sensor 12. The baking cylinder 14 is equipped with a dispersing mechanism 11. The dispersing mechanism 11 includes a dispersing motor 1101. The dispersing motor 1101 is located inside the fixed frame 6. The output end of the dispersing motor 1101 is fixedly connected to a dispersing shaft 1109. Several sets of long dispersing rods 1107 and short dispersing rods 1108 are fixed at equal intervals along the length direction of the dispersing shaft 1109. Each set of long dispersing rods 1107 and short dispersing rods 1108 is symmetrically arranged with two. The long dispersing rods 1107 and short dispersing rods 1108 are arranged in an alternating manner. The ends of the long dispersing rods 1107 and short dispersing rods 1108 are fixedly connected to dispersing teeth. The dispersing teeth are wedge-shaped pointed teeth with the tips of the teeth facing the inner wall of the baking cylinder 14.

[0022] In this embodiment, quartz sand is fed into the baking cylinder 14 through the feed pipe 7. The PLC controller controls the tungsten gold carbon fiber heating coil 15 to work, creating a high-temperature baking environment inside the baking cylinder 14. The temperature sensor 12 collects the temperature inside the cylinder in real time to achieve constant temperature control. The dispersing motor 1101 drives the dispersing shaft 1109 to rotate, which drives the staggered long dispersing rods 1107, short dispersing rods 1108 and end wedge-shaped dispersing teeth to rotate continuously, constantly turning and shearing the quartz sand inside the cylinder, breaking up the sand clumps formed under high temperature conditions. During the baking stage, the electric push rod 4 keeps the baking cylinder 14 horizontal, prolonging the time the sand is heated, so that the sand is heated evenly as a whole, and removing the moisture and organic impurities inside the sand.

[0023] Example 2: Based on Example 1, this example also has an anti-clogging function during use. Therefore, the following technical solution is disclosed. Please refer to it for details. Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7As shown, a half gear 1106 is fixedly sleeved on the outer side of the shaft section extending from the disintegrating shaft 1109 into the inner part of the protective frame 9. A lifting gear plate 1112 meshes with one side of the half gear 1106. A fixing post 1102 is fixed to the inner wall of the protective frame 9. A telescopic post 1110 is slidably arranged inside the fixing post 1102. A limit block 1114 is fixed to the top of the telescopic post 1110. The bottom end of the telescopic post 1110 is fixedly connected to the top end of the lifting gear plate 1112. A lifting rod 1103 is fixed to the bottom end of the lifting gear plate 1112. An anti-blocking rod 1104 is fixed to the bottom end of the lifting rod 1103. The blocking rod 1104 is located inside the feed pipe 10. The telescopic column 1110 is fitted with a return spring 1113 on the outside. The lifting toothed plate 1112 is fixed with a guide block 1111 on the side facing the inner wall of the protective frame 9. The inner wall of the protective frame 9 is provided with a guide groove 1105 that slides with the guide block 1111. The lifting toothed plate 1112 forms a vertical sliding guide structure through the guide block 1111 and the guide groove 1105. One end of the return spring 1113 abuts against the limiting block 1114, and the other end abuts against the inner wall of the fixed column 1102. The outer side of the return spring 1113 is fitted with a protective bushing.

[0024] In this embodiment, after baking, the PLC controller controls the electric push rod 4 to extend, pushing the insulation shell 5 and the baking cylinder 14 to tilt, relying on gravity to unload the material. The dispersing motor 1101 continuously drives the dispersing shaft 1109 to rotate, and the half gear 1106 rotates synchronously with the dispersing shaft 1109. The intermittent meshing drives the lifting tooth plate 1112 to move downward. The guide block 1111 guides vertically along the guide groove 1105. The telescopic column 1110 compresses the reset spring 1113. When the half gear 1106 disengages, the reset spring 1113 pushes the telescopic column 1110 to reset. This causes the lifting rod 1103 and the anti-blocking rod 1104 to make periodic up-and-down reciprocating movements inside the feeding pipe 10, clearing the accumulated and stuck sand clumps in real time and preventing the feeding pipe 10 from being blocked.

[0025] Example 3: This example differs from Examples 1 and 2 in that it also has an exhaust filtration function during use. Therefore, the following technical solution is disclosed. Please refer to the details. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 As shown, a fixing frame 6 is fixed to one end of the baking cylinder 14, and a protective frame 9 is fixed to the other side of the baking cylinder 14. A filter mechanism 8 is provided at one end of the exhaust pipe 13 extending to the outside of the insulation shell 5. The filter mechanism 8 includes a threaded block 804, which is threadedly connected to the end of the exhaust pipe 13. A filter frame 801 is fixed to the top of the threaded block 804. A second filter screen 802 and a first filter screen 803 are fixed inside the filter frame 801 from top to bottom. The first filter screen 803 is a coarse filter screen, and the second filter screen 802 is an activated carbon filter screen.

[0026] In this embodiment, during the high-temperature roasting of quartz sand, water vapor, dust particles, and organic fumes are generated and enter the exhaust pipe 13 through the roasting cylinder 14, and then pass into the threaded filter mechanism 8. The airflow enters the filter frame from bottom to top, passing through the lower first filter screen 803 (coarse filter screen) to intercept fine sand particles, and then through the upper second filter screen 802 (activated carbon filter screen) to adsorb odors from the fumes. The purified gas is discharged outward. The filter mechanism 8 is threadedly connected to the exhaust pipe 13 by the threaded block 804. After the equipment is stopped, the filter frame 801 can be directly unscrewed to disassemble, clean, or replace the first filter screen 803 and the second filter screen 802 for maintenance.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-temperature sand-baking device with a stirring and dispersing component, comprising a base (1), a support plate (2), a fixing plate (3), an electric push rod (4), and a heat-insulating shell (5). The electric push rod (4) is fixed to one side of the top of the base (1), and the support plate (2) is fixed to the other side of the top of the base (1). One side of the bottom of the heat-insulating shell (5) is hinged to the support plate (2) through the fixing plate (3), and the other side of the bottom of the heat-insulating shell (5) is connected to the output end of the electric push rod (4). The oven is hinged and the oven shell (5) is fixed inside. The oven shell (5) is fitted with a tungsten gold carbon fiber heating coil (15). The top of the oven shell (14) is connected to a feed pipe (7). The bottom of the oven shell (14) is connected to a discharge pipe (10). The top of the oven shell (14) on the side of the feed pipe (7) is connected to an exhaust pipe (13). The inner wall of the oven shell (14) is fitted with a temperature sensor (12). Its features are: The baking cylinder (14) is equipped with a dispersing mechanism (11), a fixing frame (6) is fixed at one end of the baking cylinder (14), a protective frame (9) is fixed at the other side of the baking cylinder (14), and a filter mechanism (8) is provided at one end of the exhaust pipe (13) extending to the outside of the heat preservation shell (5).

2. The high-temperature sand baking device with a stirring and dispersing component according to claim 1, characterized in that: The filter mechanism (8) includes a threaded block (804), which is threaded to the end of the exhaust pipe (13). A filter frame (801) is fixed to the top of the threaded block (804). A second filter screen (802) and a first filter screen (803) are fixed inside the filter frame (801) from top to bottom.

3. The high-temperature sand baking device with a stirring and dispersing component according to claim 2, characterized in that: The first filter screen (803) is a coarse filter screen, and the second filter screen (802) is an activated carbon filter screen.

4. The high-temperature sand baking device with a stirring and dispersing component according to claim 1, characterized in that: The dispersing mechanism (11) includes a dispersing motor (1101), which is located inside the fixed frame (6). The output end of the dispersing motor (1101) is fixedly connected to a dispersing shaft (1109). The dispersing shaft (1109) is fixed with several sets of long dispersing rods (1107) and short dispersing rods (1108) at equal intervals along its length.

5. A high-temperature sand-baking device with a stirring and dispersing component according to claim 4, characterized in that: Each group has two symmetrically arranged long dispersing rods (1107) and short dispersing rods (1108), and the long dispersing rods (1107) and short dispersing rods (1108) are arranged in an alternating pattern.

6. A high-temperature sand-baking device with a stirring and dispersing component according to claim 5, characterized in that: The ends of the long dispersing rod (1107) and the short dispersing rod (1108) are fixed with dispersing teeth, which are wedge-shaped pointed teeth with the tips of the teeth facing the inner wall of the baking cylinder (14).

7. A high-temperature sand-baking device with a stirring and dispersing component according to claim 4, characterized in that: The dispersing shaft (1109) extends into the protective frame (9) and a half gear (1106) is fixedly sleeved on the outer side of the shaft segment. A lifting gear plate (1112) meshes with one side of the half gear (1106). A fixed column (1102) is fixed on the inner wall of the protective frame (9). A telescopic column (1110) is slidably arranged inside the fixed column (1102). A limit block (1114) is fixed at the top of the telescopic column (1110). The bottom end of the telescopic column (1110) is fixedly connected to the top end of the lifting gear plate (1112). A lifting rod (1103) is fixed at the bottom end of the lifting gear plate (1112). An anti-blocking rod (1104) is fixed at the bottom end of the lifting rod (1103). The anti-blocking rod (1104) is located inside the feed tube (10). A return spring (1113) is sleeved on the outer side of the telescopic column (1110).

8. A high-temperature sand-baking device with a stirring and dispersing component according to claim 7, characterized in that: The lifting toothed plate (1112) has a guide block (1111) fixed on the side facing the inner wall of the protective frame (9). The inner wall of the protective frame (9) has a guide groove (1105) that slides with the guide block (1111). The lifting toothed plate (1112) forms a vertical sliding guide structure through the guide block (1111) and the guide groove (1105).

9. A high-temperature sand-baking device with a stirring and dispersing component according to claim 7, characterized in that: One end of the return spring (1113) abuts against the limiting block (1114), and the other end abuts against the inner wall of the fixing post (1102). A protective bushing is fitted on the outer side of the return spring (1113).

10. A high-temperature sand-baking device with a stirring and dispersing component according to claim 1, characterized in that: The top of the base (1) is equipped with a PLC controller, which is electrically connected to the electric push rod (4), the dispersing motor (1101) of the dispersing mechanism (11), and the temperature sensor (12).

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