Quartz sand metering device in pickling tank

Abstract

The utility model discloses a quartz sand metering device in a pickling tank, which comprises a pickling tank, a feed pipe, a discharge pipe, an overflow pipe and a detection pipe, the feed pipe is arranged at the center of the top of the pickling tank, the discharge pipe is arranged at the center of the bottom of the pickling tank, the overflow pipe is arranged at the upper part of the side wall of the pickling tank, and the detection pipe is arranged at the top of the pickling tank and positioned in the middle from the center to the edge; the meter is composed of a scale rod and a movable base, and the movable base is fixed to the bottom end of the scale rod. Quartz sand with water is injected into the pickling tank through the feeding pipe, feeding water overflows out of the pickling tank through the overflow pipe, and then the meter is inserted into the pickling tank through the detection pipe and penetrates through a water layer on the upper portion of the quartz sand, so that a base of the meter freely falls to the surface of the quartz sand. The height and the volume of the quartz sand in the pickling tank can be obtained according to data on the scale rod, and then the weight of the quartz sand in the pickling tank can be obtained according to the stacking density of the quartz sand in water, so that the quartz sand in the pickling tank can be conveniently metered.

Description

Technical Field

[0001] The utility model relates to the technical field of quartz sand metering in the production process of ultrapure quartz sand, in particular to a quartz sand metering device in a pickling tank. Background Art

[0002] The pickling process is a crucial step in the production of ultrapure quartz sand. Physical impurity removal (including crushing, screening, magnetic separation, and flotation) can only remove isolated impurity minerals within the quartz sand. Fine impurity minerals embedded in the surface of quartz particles cannot be removed through physical impurity removal and can only be removed through chemical impurity removal (i.e., pickling). This involves using chemical reagents to dissolve and remove these fine impurity minerals embedded in the surface of the quartz particles. The chemical impurity removal process involves pickling the physically cleaned quartz sand in a pickling tank using chemical reagents at a specific temperature and for a specific time to dissolve and remove the fine impurity minerals embedded in the surface of the quartz particles. To ensure effective pickling, not only must the pickling equipment meet the pickling process requirements, but there are also metering requirements for the quartz sand undergoing chemical treatment within the pickling tank. Only by clearly understanding the weight of the quartz sand to be pickled can a scientific basis be provided for the preparation of chemical reagents (the dosage of various acids). Since the pickling tank is basically made of steel lined with PTFE and is opaque, and the quartz sand after physical impurity removal, especially the quartz sand after the flotation process, is all quartz sand with water, in order to smoothly add the quartz sand with water after physical impurity removal into the pickling tank, water must continue to be used as the conveying medium. For example, a mortar pump is used to convey the quartz sand with water into the pickling tank. In this way, there will be a water layer of a certain thickness (or height) above the quartz sand in the pickling tank. In order to obtain the height of the quartz sand surface in the pickling tank, it is necessary to pass through the water layer above the quartz sand for detection.

[0003] Currently, there is no detailed technology for measuring quartz sand in the pickling tank during the production of ultra-pure quartz sand. However, in the industrial production of ultra-pure quartz sand, it is necessary to measure the quartz sand in the pickling tank to provide a scientific basis for determining the pickling parameters of the quartz sand. This utility model aims to solve the problem of measuring quartz sand in the pickling tank during the industrial production of ultra-pure quartz sand. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the above problems existing in the existing ultrapure quartz sand production process, the present utility model is proposed.

[0006] Therefore, the purpose of the present invention is to provide a quartz sand metering device in a pickling tank to solve the problem of metering quartz sand in the pickling tank during the existing ultra-pure quartz sand production process.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a quartz sand metering device in a pickling tank, comprising a pickling tank device and a meter; the pickling tank device specifically comprises: a pickling tank, a feed pipe with a valve arranged in the center of the top of the pickling tank, a discharge pipe with a valve arranged in the center of the bottom of the pickling tank, an overflow pipe with a valve arranged on the side wall of the pickling tank, and a group of detection tubes with valves arranged around the center of the top of the pickling tank; the meter specifically comprises a scale rod and a movable base.

[0008] As a preferred solution of the quartz sand metering device in the pickling tank described in the utility model, the pickling tank body is cylindrical, the top is arranged in an arc shape, the bottom is arranged in a cone shape, and the feed pipe and the discharge pipe are located on the same central axis.

[0009] As a preferred solution of the quartz sand metering device in the pickling tank described in the utility model, the detection tube is arranged in the middle position from the center of the top to the edge of the pickling tank.

[0010] As a preferred solution of the quartz sand metering device in the pickling tank described in the utility model, there are no less than 3 detection tubes.

[0011] As a preferred solution of the quartz sand metering device in the pickling tank described in the utility model, the pickling tank, the feed pipe, the discharge pipe, the overflow pipe and the detection tube are all made of steel-lined polytetrafluoroethylene material.

[0012] As a preferred solution of the quartz sand metering device in the pickling tank described in the utility model, the overall specific gravity of the meter is greater than that of water and less than that of quartz sand.

[0013] As a preferred solution of the quartz sand metering device in the pickling tank described in the utility model, the density of the scale rod is less than the density of water, and the overall density of the movable base is less than the bulk density of quartz sand and greater than the density of water.

[0014] As a preferred solution of the quartz sand metering device in the pickling tank described in the utility model, wherein: the movable base specifically includes a base plate, a counterweight device and a universal rod device; wherein the rotation fulcrum of the movable rod of the universal rod device is set at the center of the base plate, the other end of the movable rod is fixed to the bottom end of the scale rod, the counterweight device is set on the base plate and surrounds the universal rod device, and the universal rod device includes a movable rod and a bracket.

[0015] The beneficial effects of the utility model are as follows: the utility model provides a quartz sand metering device in a pickling tank, which can conveniently and accurately measure the quartz sand in the opaque pickling tank with a water layer of a certain thickness on the upper part, providing a scientific basis for determining the pickling process parameters, and solving the problem of measuring the quartz sand in the pickling tank in the existing ultra-pure quartz sand production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0017] Figure 1 This is a schematic diagram of the overall structure of the quartz sand metering device in the pickling tank provided by the utility model.

[0018] Legend:

[0019] Pickling tank device: 11. Pickling tank; 12. Feed pipe with valve; 13. Discharge pipe with valve; 14. Overflow pipe with valve; 15. Detection pipe with valve; 16. Quartz sand surface; 17. Water level;

[0020] Measuring instrument: 21. Scale rod; 22. Movable base. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0024] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing embodiments of the present invention, cross-sectional views of device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0025] Example

[0026] Currently, there is no detailed technology for measuring the quartz sand in the pickling tank during the production of ultra-pure quartz sand. However, in the industrial production of ultra-pure quartz sand, it is necessary to measure the quartz sand in the pickling tank to provide a scientific basis for determining the pickling parameters of the quartz sand.

[0027] Therefore, refer to Figure 1 , the utility model provides a quartz sand metering device in a pickling tank, comprising a pickling tank device 1 and a meter 2;

[0028] The pickling tank device 1 specifically includes: a pickling tank 11, a feed pipe 12 provided at the center of the top of the pickling tank 11 and having a valve, a discharge pipe 13 provided at the center of the bottom of the pickling tank 11 and having a valve, an overflow pipe 14 provided at the side wall of the pickling tank 11 and having a valve, and a group of detection pipes 15 provided around the center of the top of the pickling tank 11 and having valves;

[0029] The measuring instrument 2 specifically includes a scale rod 21 and a movable base 22 .

[0030] Specifically, the pickling tank device 1 is composed of a pickling tank 11 , a feed pipe 12 with a valve, a discharge pipe 13 with a valve, an overflow pipe 14 with a valve, and a detection pipe 15 with a valve.

[0031] The pickling tank 11 is made of steel-lined PTFE material to meet the technical requirements of corrosion resistance, high temperature resistance and pollution-free for the quartz sand pickling process. The tank body of the pickling tank 11 is cylindrical, the top plate is set to an arc shape to better bear pressure, and the bottom is set to a cone shape to facilitate discharge.

[0032] A feed pipe 12 with a valve is provided at the center of the arc-shaped top plate of the pickling tank 11, so that the surface 16 of the quartz sand injected into the pickling tank 11 through the feed pipe 12 with a valve is in the form of a cone with the tip pointing upward, and the center of the cone is located at the central axis of the pickling tank 11; for corrosion protection and to prevent the metal material of the pipe and valve from contaminating the quartz sand, the feed pipe and the valve are lined with polytetrafluoroethylene.

[0033] A discharge pipe 13 with a valve is provided at the center of the conical bottom of the pickling tank 11 to facilitate complete discharge of the pickled quartz sand in the pickling tank 11 from the pickling tank 11 ; the discharge pipe 13 with a valve is made of steel-lined PTFE material.

[0034] An overflow pipe 14 with a valve is provided on the upper part of the side wall of the pickling tank 11 to discharge the feed water injected into the pickling tank 11 together with the quartz sand from the pickling tank 11 by overflow, so that the water level 17 in the pickling tank 11 is always at the lower end of the overflow pipe 14 with a valve, so that the feed water is in a controllable state and does not overflow from the top of the pickling tank 11. The overflow pipe 14 with a valve is made of steel-lined polytetrafluoroethylene material.

[0035] A detection tube 15 with a valve is set on the top of the pickling tank 11. The detection tube 15 with a valve is located in the middle position from the center to the edge of the pickling tank 11. This position is exactly in the middle position of the cone edge of the quartz sand surface 16 in the pickling tank 11, so that the height data of the quartz sand surface 16 obtained through the detection tube 15 with a valve is well representative. In addition, some uncontrollable factors may cause the center position of the cone of the quartz sand surface 16 to deviate during the feeding process. In order to avoid the detection error caused by the deviation of the center position of the quartz sand surface 16, the utility model chooses to set 3-4 detection tubes 15 with valves on the top plate of the pickling tank 11 for multi-point detection; the detection tubes 15 with valves are all made of steel-lined polytetrafluoroethylene material.

[0036] Measuring instrument 2 consists of a scale rod 21 and a movable base 22. To detect the height of the quartz sand surface 16 below the water level 17 in the pickling tank 11, the present invention employs a scale rod 2 with an overall specific gravity greater than that of water but less than that of quartz. This prevents the scale rod 2 from floating in the water and sinking into the quartz sand, ensuring accurate measurement. Furthermore, to achieve accurate measurement, the present invention manufactures the scale rod 21 with a density slightly less than that of water and the movable base 22 with an overall density slightly less than the bulk density of quartz sand (but greater than that of water). This ensures that when the bottom surface of the movable base 22 rests against the quartz sand surface 16, the scale rod 21 is pulled by the movable base 22 and suspended vertically in the water, ensuring that the movable base 22 and the scale rod 21 are always aligned vertically. To this end, the present invention selects PP plastic pipes of a certain diameter (density of 0.89g / cm3-0.91g / cm3) to make the scale rod 21 of the measuring instrument 2. The length of the scale rod 21 is determined according to the height of the pickling tank 11 to be detected. The present invention selects the same height as the pickling tank 11, and sets a waterproof scale on the scale rod 21 from the bottom end upward. The present invention chooses to use laser etching to directly etch millimeter-level scale segments and centimeter-level numerical marks on the scale rod 21.

[0037] The movable base 22 includes a bottom plate, a counterweight device and a universal rod device, all of which are made of plastic material; the rotating fulcrum of the movable rod of the universal rod device is set at the center of the bottom plate, even if the movable fulcrum of the movable rod is consistent with the center of the bottom plate, the other end of the movable rod is fixed to the bottom end of the scale rod; the counterweight device is also set on the bottom plate and surrounds the universal rod device, that is, the counterweight device is set around the outer circle of the universal rod device; the bottom plate of the movable base 22 is made of PP plastic plate, and is circular. Its diameter is mainly restricted by the amount of quartz sand that needs to be counterweighted. The larger the amount of quartz sand that needs to be counterweighted, the larger the bottom plate diameter is, and the amount of quartz sand that needs to be counterweighted is subject to the height of the pickling tank 11. The higher the height of the pickling tank, the larger the amount of quartz sand that needs to be counterweighted. The diameter of the bottom plate of the movable base 22 selected by the new model is 150mm-200mm; the universal rod device of the movable base 22 includes a movable rod and a bracket. The utility model selects a plastic rope of suitable strength as the movable rod, one end of which is connected to the bottom plate through a bracket fixed on the bottom plate, and the other end is directly fixed to the lower end of the scale rod 21; the counterweight device of the movable base 22 is a tubular body made of two layers of inner and outer plastic tubes. The two layers of plastic tubes are directly welded to the bottom plate. The diameter of the outer plastic tube is consistent with the bottom plate of the movable base 22. The inner plastic tube is sleeved on the outside of the bracket of the universal rod device and its diameter is subject to the size of the bracket. The quartz sand that needs to be counterweighted is injected into the tubular body surrounded by the two layers of plastic tubes, and then the quartz sand is sealed in the tubular body with a plastic plate. The density of the manufactured movable base 22 will meet the requirement of being greater than the density of water but less than the density of quartz sand. This is because the density of PP plastic is only slightly less than that of water. When quartz sand is filled on the movable base 22, the overall density of the movable base 22 is: (weight of plastic product + weight of quartz sand) / volume. As long as the weight of the filled quartz sand is increased to a certain amount, the overall density of the movable base 22 of the meter 2 can be made greater than the density of water. The method of filling quartz sand in plastic products is to superimpose low-density plastic products on the density of quartz sand, so that the overall density of the movable base 22 cannot exceed the density of quartz sand. This ensures that when the meter 2 is used to detect the quartz sand surface 16, the movable base 22 of the meter 2 will not sink into the quartz sand, thereby ensuring the accuracy of the detection. At the same time, since the density of the scale rod 21 of the meter 2 and the movable rod of the movable base 22 are both less than that of water, they will float vertically to the center position of the bottom plate of the movable base 22 under the action of buoyancy.

[0038] During use, first close the valves of the discharge pipe 13 with a valve and the detection pipe 15 with a valve on the pickling tank 11, open the valves of the feed pipe 12 with a valve and the overflow pipe 14 with a valve, and inject the quartz sand slurry after physical impurity removal into the pickling tank 11 through the feed pipe 12 with a valve. As the quartz slurry is continuously injected, the conical quartz sand surface 16 formed by the accumulation of quartz sand in the pickling tank 11 continuously moves upward, and the water level 17 of the feed water also continuously rises. When the water level 17 exceeds the lower pipe mouth of the overflow pipe 14 with a valve, the feed water overflows out of the pickling tank 11 through the overflow pipe 14 with a valve, so that the water level 17 is always maintained at this height; after the quartz sand slurry is injected into the pickling tank 11 for a period of time, stop feeding, open the valve of the detection pipe 15 with a valve, insert the meter 2 into the pickling tank 11 through the detection pipe 15 with a valve, and allow the meter 2 to, under the action of its own weight, The measuring instrument 2 passes through the water surface 17 and sinks freely in the water. When the bottom plate of the movable base 22 of the measuring instrument 2 touches the quartz sand surface 16, the bottom plate tilts downward with the touch point as a fulcrum until it rests on the quartz sand surface 16. The measuring instrument 2 stops sinking, and the height of the quartz sand surface 16 from the valved detection tube 15 can be read from the scale rod 21 of the measuring instrument 2. Based on the detection data, it is considered whether to continue feeding the pickling tank 11. When it is not necessary to continue feeding, the remaining valved detection tubes 15 provided on the pickling tank 11 are used to perform multi-point detection on the quartz sand surface in the pickling tank 11. After all the detections are completed, the measuring instrument 2 is withdrawn, and the valved overflow pipe 14, the valved detection tube 15, and the valved feed pipe 12 are closed. By processing the detection data, the weight of the quartz sand in the pickling tank 11 that needs to be pickled can be obtained, providing a scientific basis for determining the pickling process parameters.

[0039] The utility model provides a quartz sand metering device in a pickling tank, which can conveniently and accurately meter the quartz sand in an opaque pickling tank with a water layer of a certain thickness on the upper part, provides a scientific basis for determining the pickling process parameters, and solves the problem of metering the quartz sand in the pickling tank in the existing ultra-pure quartz sand production process.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A quartz sand metering device in a pickling tank, characterized by: It comprises a pickling tank device (1) and a meter (2); The pickling tank device (1) specifically comprises: a pickling tank (11), a feed pipe (12) provided at the center of the top of the pickling tank (11) and having a valve, a discharge pipe (13) provided at the center of the bottom of the pickling tank (11) and having a valve, an overflow pipe (14) provided at the side wall of the pickling tank (11) and having a valve, and a group of detection pipes (15) provided around the center of the top of the pickling tank (11) and having valves; The meter (2) specifically comprises a scale rod (21) and a movable base (22).

2. The quartz sand metering device in the pickling tank according to claim 1, characterized in that: The pickling tank (11) is cylindrical, with an arc-shaped top and a conical bottom, and the feed pipe (12) and the discharge pipe (13) are located on the same central axis.

3. The quartz sand metering device in the pickling tank according to claim 2, characterized in that: The detection tube (15) is arranged at a midpoint between the top center and the edge of the pickling tank (11).

4. The quartz sand metering device in the pickling tank according to claim 3, characterized in that: The number of the detection tubes (15) is no less than 3.

5. The quartz sand metering device in the pickling tank according to claim 4, characterized in that: The pickling tank (11), the feed pipe (12), the discharge pipe (13), the overflow pipe (14) and the detection pipe (15) are all made of steel-lined polytetrafluoroethylene material.

6. The quartz sand metering device in the pickling tank according to claim 5, characterized in that: The overall specific gravity of the meter (2) is greater than that of water and less than that of quartz sand.

7. The quartz sand metering device in the pickling tank according to claim 6, characterized in that: The density of the scale rod (21) is less than the density of water, and the overall density of the movable base (22) is less than the bulk density of quartz sand and greater than the density of water.

8. The quartz sand metering device in the pickling tank according to claim 7, characterized in that: The movable base (22) specifically includes a base plate, a counterweight device and a universal rod device; The rotating fulcrum of the movable rod of the universal rod device is arranged at the center of the base plate, the other end of the movable rod is fixed to the bottom end of the scale rod (21), the counterweight device is arranged on the base plate and surrounds the universal rod device, and the universal rod device includes a movable rod and a bracket.

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