Acid pickling reaction tank

Abstract

The acid pickling reaction tank comprises a tank bottom, a tank body and a tank top, and an acid discharge port and a sand discharge port are formed in the tank bottom; the tank body is communicated with the tank bottom and is used for accommodating sand and acid liquor; the tank top is communicated with the tank body and is provided with a first sand inlet and a first acid inlet; wherein each of the tank bottom, the tank body and the tank top comprises a lining part and a shell part sleeved outside the lining part, the lining part is made of an acid-resistant plastic material and is used for being in direct contact with sand or acid liquor, and the shell part is made of a steel material. The pickling reaction tank provided by the utility model has the advantages of larger capacity, better acid resistance and longer service life.

Description

Technical Field

[0001] The present application relates to the technical field of quartz sand processing, and in particular to a pickling reaction tank. Background Art

[0002] In the relevant technology, the pickling reaction tank is the core equipment in the quartz sand purification industry. At present, the pickling reaction tanks commonly used in industrial production are mainly steel reaction tanks and PPH (polypropylene) reaction tanks. Steel reaction tanks are easily corroded by acid, and there are serious leakages at the production site. The operating environment of workers is poor and the maintenance workload is large, which seriously affects the normal pickling production activities. The use of PPH materials to make reaction tanks solves the problem of acid corrosion, but the bearing capacity is weaker than that of steel reaction tanks, which limits the volume of a single tank and restricts the purification output of a single tank. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a pickling reaction tank, which has both a large capacity and good acid resistance and a long service life.

[0004] According to the embodiment of the utility model, the pickling reaction tank includes: a tank bottom, a tank body and a tank top, the tank bottom is provided with an acid discharge port and a sand discharge port; the tank body is connected to the tank bottom and is used to contain sand and acid liquid; the tank top is connected to the tank body and is provided with a first sand inlet and a first acid inlet; wherein the tank bottom, the tank body and the tank top all include an inner lining part and an outer shell part sleeved outside the inner lining part, the inner lining part is made of acid-resistant plastic material and is used to directly contact sand or acid liquid, and the outer shell part is made of steel.

[0005] According to the pickling reaction tank of the embodiment of the utility model, at least the following beneficial effects are achieved: the pickling reaction tank comprises a tank bottom, a tank body and a tank top which are sequentially connected to each other. When in use, acid liquid is introduced into the tank through the first acid inlet on the tank top, and then quartz sand is introduced into the tank through the first sand inlet on the tank top, so that the quartz sand and the acid liquid can be well mixed together, so that the acid liquid can clean the quartz sand. After the cleaning is completed, the acid liquid can be discharged through the acid discharge port at the bottom of the tank. When the acid is discharged, the quartz sand is retained in the tank body and the bottom of the tank, and then discharged through the discharge port at the bottom of the tank. The sand mouth discharges quartz sand from the interior of the tank body; wherein, the tank bottom, tank body and tank top all include an inner lining part and an outer shell part, the inner lining part is located inside the outer shell part for direct contact with acid or quartz sand, so the inner lining part is made of acid-resistant plastic material to avoid being corroded by acid, and the outer shell part is made of steel, thereby improving the strength and bearing capacity of the entire pickling reaction tank and increasing the capacity of a single reaction tank; therefore, the pickling reaction tank of the present application can have both a large capacity and good acid resistance and a long service life.

[0006] According to some embodiments of the present invention, the lining part is made of polypropylene.

[0007] According to some embodiments of the present invention, the lining portion is riveted to the outer shell portion.

[0008] According to some embodiments of the utility model, a filter bag is provided at the acid discharge port, the filter bag separates the inside and outside of the pickling reaction tank, and is used to filter out the liquid in the tank body.

[0009] According to some embodiments of the utility model, a plurality of acid filter cylinders are provided at the bottom of the tank, one end of the acid filter cylinder is open and is in the shape of a hollow cylinder, a plurality of through holes are provided in the acid filter cylinder, the acid filter cylinder is arranged inside the bottom of the tank and one end of the opening is connected to the acid discharge port, and the filter bag is arranged on the acid filter cylinder.

[0010] According to some embodiments of the utility model, an inspection port is provided on the tank top, and an observation window is provided on the inspection port.

[0011] According to some embodiments of the utility model, a first water inlet is provided on the tank top.

[0012] According to some embodiments of the utility model, an overflow port is provided on the upper portion of the tank body, and the overflow port communicates with the inside and outside of the tank body.

[0013] According to some embodiments of the present invention, a second acid inlet is provided at the lower portion of the tank body.

[0014] According to some embodiments of the utility model, an overflow weir is provided on the upper part of the tank body along the circumferential direction, and the overflow weir connects the interior of the tank body and the overflow port.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 This is a schematic diagram of the overall structure of the pickling reaction tank of an embodiment of the utility model;

[0018] Figure 2 for Figure 1 A partial enlarged view of the pickling reaction tank at A shown in FIG.

[0019] Figure 3 for Figure 1 The schematic diagram of the structure of the acid filter cartridge and filter bag in the pickling reaction tank shown in FIG.

[0020] Figure 4 for Figure 1 A top view of the tank top in the pickling reaction tank shown in ;

[0021] Figure 5 for Figure 1A top view of the tank bottom in the pickling reaction tank shown in FIG.

[0022] Reference numerals:

[0023] Lining part 101; outer shell part 102; rivet 103; tank bottom 100; acid discharge port 110; sand discharge port 120; tank body 200; overflow port 210; overflow weir 220; second acid inlet 230; second water inlet 240; tank top 300; first sand inlet 310; first acid inlet 320; inspection port 330; observation window 331; first water inlet 340; vent 350; filter bag 400; acid filter cartridge 500. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0025] In the description of the present application, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] In the description of this application, "several" means more than one, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0028] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0029] Reference below Figures 1 to 5 The pickling reaction tank according to the embodiment of the utility model is described.

[0030] like Figure 1 , Figure 2 as well as Figure 5 As shown, the pickling reaction tank according to the embodiment of the utility model includes: a tank bottom 100, a tank body 200 and a tank top 300, the tank bottom 100 is provided with an acid discharge port 110 and a sand discharge port; the tank body 200 is connected to the tank bottom 100, and is used to contain sand and acid liquid; the tank top 300 is connected to the tank body 200, and is provided with a first sand inlet 310 and a first acid inlet 320; wherein, the tank bottom 100, the tank body 200 and the tank top all include an inner lining part 101 and an outer shell part 102 sleeved outside the inner lining part 101, the inner lining part 101 is made of acid-resistant plastic material, and is used to directly contact sand or acid liquid, and the outer shell part 102 is made of steel.

[0031] It can be understood that the pickling reaction tank includes a tank bottom 100, a tank body 200 and a tank top 300 which are sequentially connected to each other. When in use, acid is introduced into the tank through the first acid inlet 320 of the tank top 300, and then quartz sand is introduced into the tank through the first sand inlet 310 of the tank top 300, so that the quartz sand and the acid can be well mixed together, so that the acid can clean the quartz sand. After the cleaning is completed, the acid can be discharged through the acid discharge port 110 of the tank bottom 100. During the acid discharge, the quartz sand is retained in the tank body 200 and the tank bottom 100, and then the quartz sand is discharged through the sand discharge port of the tank bottom 100. Inside the tank body 200; wherein, the tank bottom 100, the tank body 200 and the tank top 300 all include an inner lining portion 101 and an outer shell portion 102, the inner lining portion 101 is located inside the outer shell portion 102 for direct contact with acid or quartz sand, so the inner lining portion 101 is made of acid-resistant plastic material to avoid being corroded by acid, and the outer shell portion 102 is made of steel, thereby improving the strength and bearing capacity of the entire pickling reaction tank and increasing the capacity of a single reaction tank; therefore, the pickling reaction tank of the present application can have both a large capacity and good acid resistance and a long service life.

[0032] Specifically, the lining part 101 of the three parts of the tank bottom 100, the tank body 200 and the tank top 300 are connected in sequence, and the outer shell part 102 of the three parts of the tank bottom 100, the tank body 200 and the tank top 300 are also connected in sequence.

[0033] It is understandable that the inner lining part 101 is made of polypropylene. For example, in this embodiment, the inner lining part can be made of polyethylene material in addition to polypropylene material, as long as it can meet the acid resistance requirements.

[0034] It is understood that the lining portion 101 is riveted to the outer shell portion 102. For example, Figure 1 to Figure 2 As shown, in this embodiment, the lining part 101 can be riveted to the outer shell part 102 by means of rivets 103, and the rivet 103 can also be made of polypropylene material. In this way, one end of the rivet 103 connected to the lining part 101 can be connected and fixed to the lining part 101 by hot melting, and the riveted part of the rivet 103 is located on the outside of the outer shell part 102, thereby realizing the connection and fixation between the lining part 101 and the outer shell part 102.

[0035] It is understandable that the acid discharge port 110 is provided with a filter bag 400, which separates the inside and outside of the pickling reaction tank and is used to filter out the liquid in the tank body 200. Figures 1 to 3 As shown, in this embodiment, the acid outlet 110 is provided to filter out the acid liquid in the tank and retain the sand in the tank, thereby achieving separation of the acid liquid and the sand.

[0036] It can be understood that the tank bottom 100 is provided with a plurality of acid filter cartridges 500, one end of which is open and hollow, and the acid filter cartridges 500 are provided with a plurality of through holes, the acid filter cartridges 500 are arranged inside the tank bottom 100 and one end of which is open and communicates with the acid outlet 110, and the filter bag 400 is sleeved on the acid filter cartridges 500. For example, Figures 1 to 3 As shown, in this embodiment, an acid filter cartridge 500 is arranged inside the tank bottom 100, the acid filter cartridge 500 is hollow and one end of the opening faces the acid discharge port 110, and the filter bag 400 is sleeved on the acid filter cartridge 500, and the acid filter cartridge 500 is provided with a plurality of through holes, so that the area for filtering the acid liquid is increased and the filtering efficiency is improved by extending the acid filter cartridge 500 toward the tank body 200. The acid liquid in the mixture of quartz sand and acid liquid first passes through the filter bag 400 and then passes through the through holes of the acid filter cartridge 500, so as to be discharged from the acid discharge port 110.

[0037] Specifically, the acid filter cartridge 500 and the filter bag 400 are also made of acid-resistant materials.

[0038] It is understandable that the tank top 300 is provided with an inspection port 330, and the inspection port 330 is provided with an observation window 331. Figure 4As shown, in this embodiment, the tank top 300 is provided with an inspection port 330, through which the use degree of the internal structure of the tank body 200 can be observed, and if necessary, the maintenance personnel can repair the tank body 200 or the tank bottom 100 through the inspection port 330. For example, when the filter bag 400 needs to be replaced after being used for a long time, the maintenance personnel can replace the filter bag 400 through the inspection port 330.

[0039] It is understandable that the tank top 300 is provided with a first water inlet 340. For example, Figure 4 As shown, in this embodiment, when the quartz sand needs to be discharged after the acid liquid is discharged, water is introduced through the first water inlet 340 of the tank top 300, so as to facilitate flushing and discharging of the quartz sand in the tank body 200; in addition, when the reaction tank needs to be cleaned, water can also be introduced through the first water inlet 340 for flushing and cleaning.

[0040] It is understandable that an overflow port 210 is provided at the upper portion of the tank body 200, and the overflow port 210 communicates with the inside and outside of the tank body 200. Figure 1 As shown, in this embodiment, an overflow port 210 is provided at the upper portion of the tank body 200 , so that excess acid liquid can flow out of the tank body 200 through the overflow port 210 .

[0041] It is understandable that the lower part of the tank body 200 is provided with a second acid inlet 230. For example, Figure 1 As shown, in this embodiment, by setting the second acid inlet 230 at the lower part of the tank body 200 and setting the overflow port 210 at the upper part of the tank body 200, when acid needs to be added and discharged during the cleaning process of the quartz sand, the acid can be added through the lower second acid inlet 230, and the quartz sand is cleaned during the upward flow of the acid, and then it flows out from the upper second acid inlet 230, so the cleaning efficiency and effect are better. It is avoided that the acid is passed from the upper part, and the acid is stored in the upper part of the tank body 200 due to the greater resistance of the quartz sand, which makes it difficult to achieve a good mixing and cleaning effect.

[0042] It should be understood that a second water inlet 240 is provided at the lower portion of the tank body 200 to facilitate flushing of the quartz sand or cleaning of the inner wall of the tank body 200 from below.

[0043] It is understandable that an overflow weir 220 is provided on the upper part of the tank body 200 along the circumferential direction, and the overflow weir 220 connects the interior of the tank body 200 and the overflow port 210. Figure 1 As shown, in this embodiment, an overflow weir 220 is provided on the circumference of the upper part of the tank body 200 so that the acid liquid in the tank body 200 can flow to the top of the tank body 200 and flow out of the overflow port 210 through the overflow weir 220 .

[0044] It should be understood that the tank body 200 or the tank top is provided with a vent, so as to achieve a balance of air pressure inside and outside the tank body 200 and ensure the normal progress of the cleaning process.

[0045] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A pickling reaction tank, characterized in that: include: The bottom of the tank is provided with acid discharge port and sand discharge port; A tank body, connected to the tank bottom and used for containing sand and acid liquid; The tank top is connected to the tank body and is provided with a first sand inlet and a first acid inlet; wherein, The tank bottom, the tank body and the tank top all include an inner lining part and an outer shell part sleeved outside the inner lining part. The inner lining part is made of acid-resistant plastic material and is used for direct contact with sand or acid liquid. The outer shell part is made of steel.

2. The pickling reaction tank according to claim 1, characterized in that: The lining part is made of polypropylene.

3. The pickling reaction tank according to claim 1, characterized in that: The lining portion is riveted to the outer shell portion.

4. The pickling reaction tank according to claim 1, characterized in that: The acid discharge port is provided with a filter bag, which separates the inside and outside of the pickling reaction tank and is used to filter out the liquid in the tank body.

5. The pickling reaction tank according to claim 4, characterized in that: The tank bottom is provided with a plurality of acid filter cylinders, one end of which is open and hollow, and the acid filter cylinder is provided with a plurality of through holes. The acid filter cylinder is arranged inside the tank bottom and one open end is connected to the acid discharge port, and the filter bag is sleeved on the acid filter cylinder.

6. The pickling reaction tank according to claim 4, characterized in that: The tank top is provided with an inspection port, and the inspection port is provided with an observation window.

7. The pickling reaction tank according to claim 1, characterized in that: The tank top is provided with a first water inlet.

8. The pickling reaction tank according to claim 1, characterized in that: An overflow port is provided at the upper portion of the tank body, and the overflow port is connected to the inside and outside of the tank body.

9. The pickling reaction tank according to claim 8, characterized in that: A second acid inlet is arranged at the lower part of the tank body.

10. The pickling reaction tank according to claim 9, characterized in that: An overflow weir is provided on the upper part of the tank body along the circumferential direction, and the overflow weir connects the interior of the tank body and the overflow port.

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