A high-purity quartz sand alkali metal removing device

Abstract

The utility model provides a high -purity quartz sand alkali metal removal device relates to alkali metal removal equipment field, include: acid -resistant container, acid -resistant container rear side is provided with the uncapping mechanism, acid -resistant container right side fixedly connected with the support frame, support frame front side upper end face installs press switch A, press switch B, press switch C and press switch D, and support frame front side upper end face is provided with treading press assembly. Through setting treading press assembly, ensure that the stirring paddle has stopped rotating when uncapping, avoid the risk of acid liquid splashing when uncapping, improve the overall security of the alkali metal removal device use, solve the traditional pickling type alkali metal removal device operation, the staff uncapping observes the inside quartz sand pickling state, because the stirring paddle in the container is still in the rotating working condition, therefore easy to cause the acid liquid splash, thereby cause the harm to the human body, reduce the problem of security.

Description

Technical Field

[0001] This utility model relates to the technical field of alkali metal removal equipment, and in particular to a high-purity quartz sand alkali metal removal device. Background Technology

[0002] High-purity silica sand is an indispensable key material for high-tech industries such as semiconductors, photovoltaics, optical communications, and high-end electric light sources. Its purity, especially the content of alkali metal elements, directly determines the performance, yield, and lifespan of the final product. Therefore, effectively removing alkali metal impurities from silica sand is one of the core steps in its preparation. Currently, the mainstream industrial method for removing alkali metal impurities from silica sand is acid washing. This method typically involves placing the silica sand in an acid-resistant container, adding a mixed acid (such as hydrofluoric acid, hydrochloric acid, sulfuric acid, etc.), and soaking and stirring it. The acid reacts chemically with the alkali metal impurities, removing them from the silica sand.

[0003] Although traditional acid-washing alkali metal removal devices are equipped with shielding covers on top of acid-resistant containers to prevent acid splashing during operation, acid can still easily splash out when workers open the covers to observe the acid washing status of the quartz sand inside the container. This is because the stirring blades inside the container are still rotating, and the splashed acid can easily come into contact with workers, causing severe chemical burns to the skin, eyes, and other parts of the body, thus reducing the safety of using acid-washing alkali metal removal devices. Utility Model Content

[0004] This utility model relates to a high-purity quartz sand alkali metal removal device, which solves the problem that in the operation of traditional acid-washing alkali metal removal devices, although a shield is set on the top of the acid-resistant container to prevent acid splashing, when the staff opens the cover to observe the acid washing status of the quartz sand inside the container, the stirring blades inside the container are still rotating, which can easily cause acid to splash out, thereby causing harm to the human body and reducing safety.

[0005] In a first aspect, this utility model provides a high-purity quartz sand alkali metal removal device, specifically comprising: an acid-resistant container, wherein a stirring shaft is rotatably connected inside the acid-resistant container, the lower end of the stirring shaft penetrates the bottom of the acid-resistant container, and stirring blades are installed on the upper side of the stirring shaft; a rotating shaft is rotatably connected to the rear top of the acid-resistant container, a cover is fixedly connected to the outside of the rotating shaft, and gears are installed at both ends of the rotating shaft; a cover opening mechanism is provided on the rear side of the acid-resistant container; a support frame is fixedly connected to the right side of the acid-resistant container, and a push switch A, a push switch B, a push switch C, and a push switch D are installed on the upper front surface of the support frame, and a foot-pressing assembly is provided on the upper front surface of the support frame; the foot-pressing assembly includes two foot pedals, and each foot pedal has a vertical guide rod slidably connected to each of its four corners and fixed to the upper front surface of the support frame; a control box is installed on the upper front side of the support frame, and a PLC programmable controller is installed inside the control box.

[0006] Furthermore, a speed reducer is installed at the bottom of the acid-resistant container. The output shaft of the speed reducer is fixedly connected to the lower end of the stirring shaft, and the input shaft of the speed reducer is fixedly connected to the rotating shaft of the stirring motor. The stirring motor is installed at the bottom of the speed reducer. A drain port is provided at the bottom front side of the acid-resistant container, and a valve is installed on the drain port. An acid-resistant filter screen is installed inside the acid-resistant container above the drain port.

[0007] Furthermore, each of the vertical guide rods is fitted with a spring on the outside between the support frame and the foot pedal, and a circular limit block is provided at the upper end of each vertical guide rod.

[0008] Furthermore, the pedal pressing assembly also includes two limiting plates. The two limiting plates are fixedly connected to the upper front surface of the support frame. The two limiting plates are located below the two pedals respectively. The height of the two limiting plates is equal to the thickness of the pressing switches A, B, C, and D.

[0009] Furthermore, the opening mechanism includes an electric push rod, which is installed on the rear side of the acid-resistant container. Two racks are fixedly connected to the telescopic rod of the electric push rod via a crossbar. Each rack is slidably connected to a guide sleeve fixed on the rear side of the acid-resistant container.

[0010] Furthermore, the opening mechanism also includes two protective housings, which are installed on the rear side of the acid-resistant container and are located outside the two gears and two racks, respectively.

[0011] This invention provides a device for removing alkali metals from high-purity quartz sand, which has the following beneficial effects: 1. By setting up a foot-operated pressing component, when it is necessary to open the cover to observe the internal working condition of the acid-resistant container, the operator can step on the right foot pedal and press the buttons on pressing switch B and pressing switch D. The PLC programmable controller in the control box will then follow the preset program, first stopping the stirring motor, and after a three-second delay, instructing the electric push rod to retract and open the cover. This ensures that the stirring blades have completely stopped rotating when the cover is opened, avoiding the risk of acid splashing when the cover is opened, effectively protecting the safety of the operator, and significantly improving the overall safety of the alkali metal removal device.

[0012] 2. By setting up an opening mechanism, the cover can be opened and closed manually instead of manually. To open the cover, simply step on the right foot pedal and to close the cover, simply step on the left foot pedal. Moreover, the operator can complete the opening and closing action without putting down tools or materials while holding them, which significantly improves the ease of operation and work efficiency.

[0013] Other advantages, objectives and features of this invention will be apparent in part from the description which follows, and in part from the understanding of those skilled in the art through study and practice of this invention. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the accompanying drawings will be briefly described below.

[0015] In the attached diagram: Figure 1 A three-dimensional structural schematic diagram of this application is shown; Figure 2 A structural schematic diagram of this application is shown from the bottom view; Figure 3 This paper shows a schematic diagram of a partially cross-sectional view of the acid-resistant container of this application; Figure 4 This paper shows a schematic diagram of a partially cut section of the protective casing of this application; Figure 5 This application shows Figure 4 A magnified structural diagram of part A in the middle; Figure 6 A schematic diagram of the rotating shaft, gear, and rack of this application is shown; Figure 7 A schematic diagram of the disassembled pedal and vertical guide bar of this application is shown.

[0016] List of reference numerals 1. Acid-resistant container; 101. Reducer; 102. Stirring shaft; 103. Stirring motor; 104. Drain port; 105. Cover; 106. Support frame; 107. Control box; 108. Acid-resistant filter screen; 109. Rotating shaft; 1010. Gear; 1011. Press switch A; 1012. Press switch B; 1013. Press switch C; 1014. Press switch D; 2. Opening mechanism; 201. Electric push rod; 202. Rack; 203. Guide sleeve; 204. Protective housing; 3. Foot pedal assembly; 301. Foot pedal; 302. Vertical guide rod; 303. Limiting plate. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Example 1: Please refer to Figures 1 to 7 : This utility model proposes a high-purity quartz sand alkali metal removal device, comprising: an acid-resistant container 1, with a stirring shaft 102 rotatably connected inside the acid-resistant container 1, the lower end of the stirring shaft 102 penetrating through the bottom of the acid-resistant container 1, and stirring blades installed on the upper side of the stirring shaft 102; a rotating shaft 109 rotatably connected to the rear side of the top of the acid-resistant container 1, with a cover 105 fixedly connected to the outside of the rotating shaft 109, and gears 1010 installed at both ends of the rotating shaft 109; and a cover opening mechanism 2 provided at the rear side of the acid-resistant container 1; the acid-resistant container 1 A support frame 106 is fixedly connected to the right side. A push switch A1011, a push switch B1012, a push switch C1013 and a push switch D1014 are installed on the upper front end of the support frame 106. The push switch A1011 is used to control the extension movement of the telescopic rod of the electric push rod 201, the push switch B1012 is used to control the retraction movement of the telescopic rod of the electric push rod 201, the push switch C1013 is used to start the stirring motor 103, and the push switch D1014 is used to turn off the stirring motor 103. A foot-pressing assembly 3 is provided on the upper front surface of the support frame 106. The foot-pressing assembly 3 includes two foot pedals 301. Each foot pedal 301 has a vertical guide rod 302 slidably connected to one of its four corners and fixed to the upper front surface of the support frame 106. A control box 107 is installed on the upper front side of the support frame 106. The control box 107 contains a PLC programmable controller for controlling the operation of the electric push rod 201 and the stirring motor 103. The foot-pressing assembly 3 ensures that the stirring blades have completely stopped rotating when the cover is opened, avoiding the risk of acid splashing when the cover is opened and effectively ensuring the safety of the operator.

[0019] A reducer 101 is installed at the bottom of the acid-resistant container 1. The output shaft of the reducer 101 is fixedly connected to the lower end of the stirring shaft 102. The input shaft of the reducer 101 is fixedly connected to the rotating shaft of the stirring motor 103, and the stirring motor 103 is installed at the bottom of the reducer 101. A drain port 104 is provided at the bottom front side of the acid-resistant container 1. A valve is installed on the drain port 104. An acid-resistant filter screen 108 is installed inside the acid-resistant container 1 above the drain port 104, which can isolate the quartz sand inside the acid-resistant container 1 during drainage.

[0020] Each vertical guide rod 302 is fitted with a spring between the support frame 106 and the pedal 301. Each vertical guide rod 302 has a circular limit block at its upper end to limit the upward movement of the pedal 301.

[0021] The foot-operated pressing assembly 3 also includes two limiting plates 303. The two limiting plates 303 are fixedly connected to the upper front surface of the support frame 106. The two limiting plates 303 are located below the two foot pedals 301 respectively. The height of the two limiting plates 303 is equal to the thickness of the pressing switches A1011, B1012, C1013 and D1014, so that the pressing switches A1011, B1012, C1013 and D1014 are effectively protected.

[0022] Example 2, based on Example 1, such as Figures 4 to 6 As shown, the opening mechanism 2 includes an electric push rod 201, which is installed on the rear side of the acid-resistant container 1. Two racks 202 are fixedly connected to the telescopic rod of the electric push rod 201 via a crossbar. Each rack 202 is slidably connected to a guide sleeve 203 fixed on the rear side of the acid-resistant container 1, so that the rack 202 is effectively guided when sliding up and down. With the setting of the opening mechanism 2, the manual opening and closing of the cover 105 can be replaced. Moreover, when the operator is holding tools or materials, the opening and closing action can be completed without putting them down, which improves the convenience of operation and work efficiency.

[0023] The opening mechanism 2 also includes a protective housing 204. There are two protective housings 204. The two protective housings 204 are installed on the rear side of the acid-resistant container 1. The two protective housings 204 are located outside the two gears 1010 and the two racks 202, respectively, so that the gears 1010 and the racks 202 are effectively protected.

[0024] The working principle of this embodiment is as follows: In use, first place the quartz sand in the acid-resistant container 1, add the mixed acid solution, and then press down on the left-side foot pedal 301. The left-side foot pedal 301 presses the buttons on both the push switch A1011 and the push switch C1013. After the button on push switch A1011 is pressed, the PLC programmable controller inside the control box 107 controls the extension rod of the electric push rod 201 to extend, causing the rack 202 to move upwards, and driving the gear 1010 to rotate. Shaft 109 rotates counterclockwise, thereby driving the cover 105 to rotate counterclockwise and close the cover 105. After pressing the button on switch C1013, the PLC programmable controller inside control box 107 starts the stirring motor 103. The stirring motor 103 and reducer 101 drive the stirring shaft 102 to rotate, which in turn drives the stirring blades to rotate, stirring the quartz sand and the mixed acid solution. The acid solution reacts chemically with the alkali metal impurities in the quartz sand to remove the alkali metal impurities from the quartz sand.

[0025] During the pickling process, when it is necessary to open the lid to observe the pickling status of the quartz sand in the acid-resistant container 1, the operator needs to step down on the right-side foot pedal 301. The right-side foot pedal 301 presses the buttons on both press switches B1012 and D1014. After pressing the button on press switch D1014, the PLC programmable controller inside control box 107 first shuts down the stirring motor 103 according to a preset program, stopping the stirring blades from rotating. After pressing the button on press switch B1012, the PLC programmable controller inside control box 107... The controller waits three seconds before controlling the retraction of the electric push rod 201 (the retraction time of the electric push rod 201 can be preset by the PLC programmable controller). The rack 202 moves down, driving the gear 1010 to rotate the rotating shaft 109 clockwise, thereby driving the shield cover 105 to rotate clockwise and opening the shield cover 105. At this time, since the stirring blade is in a stopped state, acid splashing will not occur, avoiding acid splashing and contact with the human body, which greatly improves the safety of this alkali metal removal device.

[0026] The following points should be noted in this article: 1. The accompanying drawings of this utility model only relate to the structures involved in this utility model; other structures can be referred to conventional designs.

[0027] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0028] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A high purity quartz sand alkali metal removal apparatus comprising: An acid-resistant container (1) is provided, wherein a stirring shaft (102) is rotatably connected inside the acid-resistant container (1), the lower end of the stirring shaft (102) penetrates the bottom of the acid-resistant container (1), and a stirring blade is installed on the upper side of the stirring shaft (102); characterized in that a rotating shaft (109) is rotatably connected to the rear side of the top of the acid-resistant container (1), a cover (105) is fixedly connected to the outside of the rotating shaft (109), and gears (1010) are installed at both ends of the rotating shaft (109); an opening mechanism (2) is provided on the rear side of the acid-resistant container (1); and the right side of the acid-resistant container (1) is fixed A support frame (106) is connected, and a push switch A (1011), a push switch B (1012), a push switch C (1013) and a push switch D (1014) are installed on the upper front side of the support frame (106). A foot pressing assembly (3) is provided on the upper front side of the support frame (106). The foot pressing assembly (3) includes a foot pedal (301). There are two foot pedals (301). Each foot pedal (301) has a vertical guide rod (302) that is fixed to the upper front side of the support frame (106) and is slidably connected to the four corners of each foot pedal (301).

2. The apparatus for removing alkali metals from high purity quartz sand according to claim 1, characterized in that: The acid-resistant container (1) is equipped with a reducer (101) at the bottom. The output shaft of the reducer (101) is fixedly connected to the lower end of the stirring shaft (102). The input shaft of the reducer (101) is fixedly connected to the rotating shaft of the stirring motor (103). The stirring motor (103) is installed at the bottom of the reducer (101). The acid-resistant container (1) is provided with a drain port (104) at the bottom front side. A valve is installed on the drain port (104). An acid-resistant filter screen (108) is installed inside the acid-resistant container (1) above the drain port (104).

3. The apparatus for removing alkali metals from high purity quartz sand according to claim 1, characterized in that: Each of the vertical guide rods (302) is fitted with a spring between the support frame (106) and the foot pedal (301), and a circular limit block is provided at the upper end of each vertical guide rod (302).

4. The apparatus for removing alkali metals from high purity quartz sand according to claim 1, characterized in that: The foot-pressing assembly (3) also includes a limiting plate (303). There are two limiting plates (303). The two limiting plates (303) are fixedly connected to the upper front surface of the support frame (106). The two limiting plates (303) are located below the two foot pedals (301). The height of the two limiting plates (303) is equal to the thickness of the pressing switch A (1011), pressing switch B (1012), pressing switch C (1013), and pressing switch D (1014).

5. The apparatus for removing alkali metals from high purity quartz sand according to claim 1, characterized in that: The opening mechanism (2) includes an electric push rod (201), which is installed on the rear side of the acid-resistant container (1). Two racks (202) are fixedly connected to the telescopic rod of the electric push rod (201) via a crossbar. Each rack (202) is slidably connected to a guide sleeve (203) fixed on the rear side of the acid-resistant container (1).

6. The apparatus for removing alkali metals from high purity quartz sand according to claim 5, characterized in that: The opening mechanism (2) also includes a protective housing (204), and there are two protective housings (204). The two protective housings (204) are installed on the rear side of the acid-resistant container (1) and are located outside the two gears (1010) and the two racks (202), respectively.

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