Automatic pickling equipment for high-purity quartz sand

Abstract

The utility model discloses automatic pickling equipment for high-purity quartz sand, and relates to the technical field of quartz sand production equipment. The equipment comprises a reaction kettle; the pneumatic exhaust valve, the pneumatic liquid feeding and discharging valve and the rotating shaft are respectively arranged on the reaction kettle, and the rotating shaft is rotationally arranged on the machine base and is of a hollow structure; the air pressure driving mechanism, the liquid feeding and discharging device and the multi-channel rotating joint are arranged at the end part of the rotating shaft; an air inlet and an air outlet of the pneumatic exhaust valve, an air inlet and an air outlet of the pneumatic liquid feeding and discharging valve and a liquid inlet and a liquid outlet of the pneumatic liquid feeding and discharging valve are respectively connected with one side of the multi-channel rotating joint through corresponding pipelines penetrating through a rotating shaft; and the pneumatic driving mechanism and the liquid feeding and discharging device are respectively connected with the other side of the multi-channel rotating joint.

Description

Technical Field

[0001] This utility model relates to a quartz sand production equipment, specifically an automated acid washing equipment for high-purity quartz sand. Background Technology

[0002] High-purity silica sand is an indispensable key material for high-tech industries such as semiconductors, photovoltaics, and fiber optic communications. Its purity directly affects the performance and quality of the final product. Acid washing, as a crucial step in the preparation of high-purity silica sand, plays a vital role in removing surface impurities and improving product purity. However, traditional silica sand acid washing processes mainly rely on manual operation or semi-automated equipment, resulting in low production efficiency, high costs, unstable product quality, and high environmental pollution risks. The more manual the operation, the greater the pollution risk.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0004] Purpose of the utility model: The technical problem to be solved by this utility model is to provide an automated acid washing equipment for high-purity quartz sand, addressing the shortcomings of the existing technology.

[0005] To solve the above-mentioned technical problems, this utility model discloses an automated acid washing equipment for high-purity quartz sand, which includes:

[0006] Reactor;

[0007] A pneumatic exhaust valve, a pneumatic liquid supply and discharge valve, and a rotating shaft are respectively installed on the reactor. The rotating shaft is rotatably mounted on the base and has a hollow structure.

[0008] The device includes a pneumatic drive mechanism, a liquid supply and drainage device, and a multi-channel rotary joint, which is installed at the end of the rotating shaft. The air inlet and outlet of the pneumatic exhaust valve, the air inlet and outlet of the pneumatic liquid supply and drainage valve, and the liquid inlet and outlet of the pneumatic liquid supply and drainage valve are respectively connected to one side of the multi-channel rotary joint through corresponding pipes passing through the rotating shaft. The pneumatic drive mechanism and the liquid supply and drainage device are respectively connected to the other side of the multi-channel rotary joint.

[0009] Specifically, the multi-channel rotary joint is a five-way rotary joint, including a main channel and four compressed air channels. Any two of the main channel and the four compressed air channels are independent of each other. The main channel is connected to the inlet and outlet of the pneumatic supply and discharge valve. The inlet and outlet of the pneumatic exhaust valve and the inlet and outlet of the pneumatic supply and discharge valve are connected to the four compressed air channels in a one-to-one correspondence, so that the inlet and outlet of the pneumatic exhaust valve, the inlet and outlet of the pneumatic supply and discharge valve, and the inlet and outlet of the pneumatic supply and discharge valve are respectively connected to one side of the multi-channel rotary joint through corresponding pipes passing through the rotating shaft.

[0010] Specifically, the rotation axis is horizontally positioned.

[0011] Furthermore, it also includes a secondary rotating shaft, which is coaxially arranged with the main rotating shaft and located on both sides of the reactor.

[0012] Specifically, the pneumatic exhaust valve and the pneumatic liquid supply and discharge valve are respectively installed at opposite ends of the reactor along the height direction; the rotating shaft is connected to the middle of one side of the outer wall of the reactor.

[0013] Furthermore, a filter device is also installed at the connection between the pneumatic supply and discharge valve and the reactor.

[0014] Specifically, the filtration device includes a filter plate and a filter cloth covering the filter plate. The filter plate is made of steel-lined PEFE, steel-lined PFA, or high-strength engineering plastic resistant to strong acids and alkalis; the filter cloth is made of PTFE or PPS.

[0015] Specifically, the reactor has an inlet and outlet, a top cover is installed at the inlet and outlet, and the pneumatic exhaust valve is installed on the top cover.

[0016] Specifically, the reactor is provided with inlet and outlet ports, a lower cover is installed at the inlet and outlet ports, and the pneumatic supply and discharge valve is installed on the lower cover.

[0017] Specifically, the liquid supply and discharge device includes a liquid supply pump, a vacuum balancing tank, a vacuum pump, and a controller. The suction port of the vacuum pump is connected to the outlet of the vacuum balancing tank, and the main channel of the multi-channel rotary joint is selectively connected between the inlet of the vacuum balancing tank and the outlet of the liquid supply pump. The liquid supply pump and the vacuum pump are electrically connected to the controller.

[0018] Beneficial effects:

[0019] 1. This utility model provides an automated acid washing equipment for high-purity quartz sand, which enables fully automated production after one feeding of quartz sand, realizing the full automation of the acid washing-water washing-dehydration process without manual intervention, reducing the risk of pollution, saving labor, improving production efficiency and product quality.

[0020] 2. By setting up multi-channel rotary joints, the pipelines are prevented from being pulled when the reactor rotates, which helps to improve production safety. Attached Figure Description

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, and the advantages of the present invention in the above and / or other aspects will become clearer.

[0022] Figure 1 This is a schematic diagram of the structure of an automated acid washing equipment for high-purity quartz sand, provided as an embodiment of the present invention.

[0023] The accompanying labeling is as follows:

[0024] 1. Reactor; 2. Top cover; 3. Pneumatic exhaust valve; 4. Filter device; 5. Bottom cover; 6. Pneumatic supply and discharge valve; 7. Supply and discharge pipeline; 8. Rotary shaft; 9. Multi-channel rotary joint; 10. Vacuum balance tank; 11. Vacuum pump; 12. Supply pump; 13. Secondary rotating shaft; 14. Base; 15. First solenoid valve; 16. Second solenoid valve. Detailed Implementation

[0025] like Figure 1 As shown, this utility model provides an automated acid washing equipment for high-purity quartz sand, including: a reaction vessel 1; a pneumatic exhaust valve 3, a pneumatic liquid supply and discharge valve 6, and a rotating shaft 8 respectively installed on the reaction vessel 1, the rotating shaft 8 being rotatably mounted on a base 14 and having a hollow structure; and a pneumatic drive mechanism, a liquid supply and discharge device, and a multi-channel rotary joint 9, the multi-channel rotary joint 9 being installed at the end of the rotating shaft 8; the air inlet and outlet of the pneumatic exhaust valve 3, the air inlet and outlet of the pneumatic liquid supply and discharge valve 6, and the liquid inlet and outlet of the pneumatic liquid supply and discharge valve 6 are respectively connected to one side of the multi-channel rotary joint 9 through corresponding pipelines passing through the rotating shaft 8, and the pneumatic drive mechanism and the liquid supply and discharge device are respectively connected to the other side of the multi-channel rotary joint 9.

[0026] The pneumatic drive mechanism controls the opening and closing of the pneumatic exhaust valve 3 via compressed air to achieve air intake or exhaust from the reactor. The pneumatic drive mechanism also controls the opening and closing of the pneumatic supply / discharge valve 6 via compressed air to achieve liquid supply or discharge from the reactor. The control of the pneumatic exhaust valve 3 and the pneumatic supply / discharge valve 6 by the pneumatic drive mechanism can be independent of each other. The pneumatic drive mechanism can be a prior art pneumatic drive mechanism, and therefore will not be described in detail in this application.

[0027] Specifically, the pipeline passing through the rotating shaft 8 includes a supply and discharge pipeline 7 that connects the inlet and outlet of the pneumatic supply and discharge valve 6 to the main channel of the multi-channel rotary joint 9.

[0028] Specifically, the multi-channel rotary joint 9 is a five-way rotary joint, including a main channel and four compressed air channels. Any two of the main channel and four compressed air channels are independent of each other. The main channel connects to the inlet and outlet of the pneumatic supply / discharge valve 6. The inlet and outlet of the pneumatic exhaust valve 3, as well as the inlet and outlet of the pneumatic supply / discharge valve 6, are connected to the four compressed air channels in a one-to-one correspondence, used to control the opening and closing of the pneumatic exhaust valve 3 and the pneumatic supply / discharge valve 6. The inner wall of the main channel in the multi-channel rotary joint 9 is made of PTFE or PAF material, which is resistant to acid and alkali corrosion.

[0029] Specifically, see Figure 1 The rotating shaft 8 is set horizontally.

[0030] Specifically, see Figure 1 The pneumatic exhaust valve 3 and the pneumatic liquid supply and discharge valve 6 are respectively installed at opposite ends of the reactor 1 along the height direction.

[0031] Specifically, see Figure 1 The rotating shaft 8 is connected to the middle of the outer wall of one side of the reactor 1.

[0032] Specifically, see Figure 1 A filter device 4 is also installed at the connection between the pneumatic supply and discharge valve 6 and the reactor 1.

[0033] Optionally, see Figure 1 The filtration device 4 includes a filter plate and a filter cloth covering the filter plate. The filter plate is made of steel-lined PEFE, steel PFA, or high-strength engineering plastic resistant to strong acid and alkali corrosion; the filter cloth is made of PTFE or PPS.

[0034] More specifically, see Figure 1 The reactor 1 has an inlet and outlet, and an upper cover 2 is installed at the inlet and outlet. A pneumatic exhaust valve 3 is installed on the upper cover 2.

[0035] More specifically, see Figure 1 The reactor 1 has an inlet and outlet, and a lower cover 5 is installed at the inlet and outlet. A pneumatic supply and discharge valve 6 is installed on the lower cover 5.

[0036] Further, see Figure 1 In order to better support the reactor 1, the device also includes a secondary rotating shaft 13, which is coaxially arranged with the rotating shaft 8 and located on both sides of the reactor 1.

[0037] Specifically, the liquid supply and drainage device includes a liquid supply pump 12, a vacuum balancing tank 10, a vacuum pump 11, and a controller. The suction port of the vacuum pump 11 is connected to the outlet of the vacuum balancing tank 10, and the main channel of the multi-channel rotary joint 9 is selectively connected between the inlet of the vacuum balancing tank 10 and the outlet of the liquid supply pump 12. The liquid supply pump 12 and the vacuum pump 11 are electrically connected to the controller, which can be a PLC controller. The inlet of the liquid supply pump 12 is connected to a liquid supply container containing water. The lower end of the vacuum balancing tank 10 is provided with a gravity flow port, which is connected to a waste liquid collection tank through a pipeline. Neither the waste liquid collection tank nor the liquid supply container is shown in the figure.

[0038] When the main channel of the multi-channel rotary joint 9 is connected to the inlet of the vacuum balance tank 10, the vacuum pump 11 draws a vacuum, drawing the liquid inside the reactor 1 into the vacuum balance tank 10, and then discharging it to the waste liquid collection tank through the vacuum balance tank 10, thereby realizing the automatic discharge of the reactor; when the main channel of the multi-channel rotary joint 9 is connected to the outlet of the liquid supply pump 12, the liquid supply pump 12 realizes the automatic feeding of water from the liquid supply container into the reactor.

[0039] More specifically, the main channel of the multi-channel rotary joint 9 is connected to the inlet of the vacuum balance tank 10 via a first solenoid valve 15, and to the outlet of the liquid supply pump 12 via a second solenoid valve 16. The first solenoid valve 15 and the second solenoid valve 16 are electrically connected to a controller. The controller controls the opening and closing of the first solenoid valve 15 and the second solenoid valve 16 to switch the main channel of the multi-channel rotary joint 9 between the inlet of the vacuum balance tank 10 and the outlet of the liquid supply pump 12.

[0040] The working process of this utility model is as follows:

[0041] First, open the top cover 2 and fill it with quartz sand. Then, inject a strong acid or strong alkali solution into the reactor 1.

[0042] Then, the top cover 2 is closed, and the control program in the PLC controller is started to begin production. After the chemical reaction of the materials has ended, the PLC controller controls the pneumatic exhaust valve 3 and the pneumatic supply and discharge valve 6 to open, and the vacuum pump 11 starts working to drain the rotary reactor 1. After the drainage is completed, the supply pump 12 supplies liquid to the reactor. After the supply is completed, the PLC controller controls the closing of the pneumatic exhaust valve 3 and the pneumatic supply and discharge valve 6 to initiate a secondary reaction. After repeating the above drainage and supply operations multiple times, the quartz sand pickling and cleaning work is completed.

[0043] Finally, vacuum pump 11 is turned on to vacuum dry the reaction vessel 1. After the material is dried, the top cover 2 is opened to release the material, which is then packaged and stored.

[0044] This utility model provides a concept and method for an automated acid washing device for high-purity quartz sand. Many methods and approaches exist for implementing this technical solution; the above is merely a preferred embodiment. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. An automated high purity quartz sand pickling apparatus, characterized by, The utility model relates to a kind of reaction kettle, including: Reaction kettle (1); Respectively installed in the reaction kettle (1) pneumatic exhaust valve (3), pneumatic feed and drain valve (6) and rotating shaft (8), the rotating shaft (8) rotation is installed in base (14) and is hollow structure; And gas pressure driving mechanism, feed and drain device and multi-channel rotary joint (9), the multi-channel rotary joint (9) is installed in the end of the rotating shaft (8);The gas inlet and gas outlet of the pneumatic exhaust valve (3), the gas inlet and gas outlet of the pneumatic feed and drain valve (6) and the inlet and outlet liquid port of the pneumatic feed and drain valve (6) are connected with one side of the multi-channel rotary joint (9) respectively through corresponding pipeline passing through rotating shaft (8), and the gas pressure driving mechanism and the feed and drain device are connected with the other side of the multi-channel rotary joint (9) respectively.

2. The high purity quartz sand automated acid washing apparatus according to claim 1, wherein, The multi-channel rotary joint (9) is five-way rotary joint, including main channel and four-way compressed air channel, any two ways between the main channel and the four-way compressed air channel are independent of each other, the main channel is connected with the inlet and outlet liquid port of the pneumatic feed and drain valve (6), and the gas inlet and gas outlet of the pneumatic exhaust valve (3) and the gas inlet and gas outlet of the pneumatic feed and drain valve (6) are connected with the four-way compressed air channel in one-to-one correspondence.

3. The high purity quartz sand automated acid washing apparatus according to claim 1, wherein The rotating shaft (8) is arranged horizontally.

4. The automatic acid washing apparatus for high purity quartz sand according to claim 3, wherein It further includes secondary rotating shaft (13), which is coaxially arranged with the rotating shaft (8) and located on both sides of the reaction kettle (1) respectively.

5. The high purity quartz sand automated acid washing apparatus according to claim 1, wherein The pneumatic exhaust valve (3) and the pneumatic feed and drain valve (6) are respectively installed in the reaction kettle (1) opposite ends along the height direction;The rotating shaft (8) is connected to the middle part of the outer wall of the reaction kettle (1) on one side.

6. The high purity quartz sand automated acid washing apparatus according to claim 1, wherein The connection between the pneumatic feed and drain valve (6) and the reaction kettle (1) is also provided with a filter device (4).

7. The high purity quartz sand automated acid washing apparatus according to claim 6, wherein The filter device (4) includes a filter plate and a filter cloth wrapped around the filter plate, the filter plate is made of steel lined PEFE material, steel PFA material or high-strength engineering plastic resistant to strong acid and alkali corrosion;The filter cloth is PTFE or PPS.

8. The high purity quartz sand automated acid washing apparatus according to claim 1, wherein, The reaction kettle (1) is provided with an inlet and outlet port, and the pneumatic exhaust valve (3) is installed on the upper cover (2).

9. The high purity quartz sand automated acid washing apparatus according to claim 1, wherein, The reaction kettle (1) is provided with an inlet and outlet port, and the pneumatic exhaust valve (3) is installed on the upper cover (2).

10. The high purity quartz sand automated acid washing apparatus according to claim 1, wherein, The feed and drain device includes a feed pump (12), a vacuum balance tank (10), a vacuum pump (11) and a controller, the suction port of the vacuum pump (11) is connected with the outlet of the vacuum balance tank (10), the main channel of the multi-channel rotary joint (9) is selectively connected between the inlet of the vacuum balance tank (10) and the outlet of the feed pump (12), and the feed pump (12) and the vacuum pump (11) are electrically connected with the controller respectively.

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