Particle material purification countercurrent pickling device capable of eliminating foam in ultrasonic mode

Abstract

The utility model relates to a particle material purification countercurrent pickling device capable of eliminating foam in an ultrasonic mode, which comprises a pickling tank, a circle of overflow groove is arranged on the inner edge of an upper cover of the pickling tank, and the overflow groove is communicated with a pool body through an overflow pipe; the upper cover is also provided with a feeding hole and a plurality of ultrasonic vibration rods extending below the liquid level in the pickling tank, and the ultrasonic vibration rods are connected with an ultrasonic generator; a microporous sieve plate is arranged at the lower part in the pickling tank and is provided with a sand discharging pipe connected with the outer part of the pickling tank. The device has the beneficial effects that by additionally arranging the ultrasonic vibration rod and the ultrasonic generator, foams on the floating liquid surface can be quickly broken through the cavitation effect of ultrasonic waves, so that the foams are eliminated, and normal flowing of acid liquid in the pickling process is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical engineering, in particular to a particle material purification countercurrent pickling device which eliminates foam in an ultrasonic manner. Background Art

[0002] As we all know, the large-scale industrial production of granular materials must do a good job in dust pollution prevention and control. Therefore, in accordance with the national dust pollution prevention and control standards, most of them adopt wet preparation technology. In the preparation technology of non-metallic mineral granular materials, almost all of them adopt wet production technology. The biggest advantage of this process is to maximize the removal of iron introduced in the process of preparing granular materials through wet magnetic separation. However, after the granular materials are prepared, their specific surface area increases, the surface energy is large, the adsorption capacity also increases, and the ability to adsorb impurities is strong - the impurities adsorbed on its surface include not only liquids, solids, but also Gas, therefore, when the dehydrated granular material enters the pickling tank, there are gaps between the materials when they are piled up, and the gaps are filled with air. Therefore, during the acid purification process in the pickling device (such as: patent number 2011102470614, patent name: a high-purity quartz sand purification pickling device), when the acid enters from the bottom of the pickling tank, it slowly rises, and the air is slowly driven out during the rising process, thus forming a lot of foam. If the foam cannot be effectively removed, it will have an adverse effect on the normal flow of the acid in the pickling process. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a particle material purification countercurrent pickling device which eliminates foam in an ultrasonic manner, so as to overcome the deficiencies in the above-mentioned prior art.

[0004] The utility model provides a technical solution to the above-mentioned technical problem as follows: a countercurrent pickling device for purifying particulate materials by ultrasonically eliminating foam, comprising a pickling tank, wherein the inner edge of the upper cover of the pickling tank is provided with a circle of overflow grooves, and the overflow grooves are connected to the tank body through an overflow pipe; the upper cover is also provided with a feeding port and a plurality of ultrasonic vibration rods extending below the liquid level in the pickling tank, and the ultrasonic vibration rods are connected to an ultrasonic generator; a microporous sieve plate is provided at the bottom of the pickling tank, and a sand discharge pipe connected to the outside of the pickling tank is provided on the microporous sieve plate.

[0005] On the basis of the above technical solution, the present invention can also be improved as follows.

[0006] Furthermore, a plurality of mounting holes are provided on the upper cover, and the ultrasonic vibration rods are fixedly or detachably connected to the mounting holes on the upper cover.

[0007] Furthermore, an acid inlet is provided at the bottom of the pickling tank, and the acid inlet is connected in series with a heater, an acid-resistant pump and an acid storage container in sequence through an acid delivery pipe.

[0008] Furthermore, a valve is provided on the acid delivery pipe between the acid-resistant pump and the heater.

[0009] Further, the heater is a heat exchanger.

[0010] Furthermore, a valve is provided on the acid delivery pipe between the acid storage container and the acid-resistant pump.

[0011] Furthermore, the tank body is a sand settling tank or a transfer acid tank.

[0012] Furthermore, the pool body is connected to the acid-resistant pump through a reflux pipe, and a valve is provided on the reflux pipe.

[0013] Furthermore, the aperture of the micropores on the microporous sieve plate is 0.01mm~0.4mm, the pickling tank is provided with a sand discharge pipe with a valve above the microporous sieve plate, the pickling tank is provided with a sewage pipe with a valve and a deacidification pipe with a valve below the microporous sieve plate, and the deacidification pipe is connected with the vacuum buffer acid storage tank and the vacuum pump in sequence through pipelines.

[0014] Furthermore, the acid discharge port of the vacuum buffer acid storage tank is connected to the tank body.

[0015] The beneficial effects of the utility model are:

[0016] The non-metallic mineral granular materials to be pickled and purified are put into the pickling tank through the feeding port, and the amount added depends on the actual situation;

[0017] After the feeding is completed, the acid-resistant pump is started, and the acid in the acid storage container is sent to the heater through the acid-resistant pump, and then sent to the pickling tank after being heated by the heater;

[0018] When the acid liquid rises to the overflow port near the upper end of the pickling tank, the ultrasonic generator is turned on. The ultrasonic generator controls the ultrasonic vibration rod to generate ultrasonic vibration and emits this vibration energy into the liquid, thereby utilizing the cavitation effect of the ultrasonic wave to quickly break the foam on the floating liquid surface to eliminate the foam. After the foam is completely eliminated, the ultrasonic generator can be turned off.

[0019] By adding an ultrasonic vibrating rod and an ultrasonic generator, the cavitation effect of ultrasound can be used to quickly burst the foam on the floating liquid surface to eliminate the foam and avoid affecting the normal flow of the acid during the pickling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a structural diagram of a countercurrent pickling device for purifying particulate materials by ultrasonically eliminating foam.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Pickling tank, 110. Upper cover, 111. Feeding port, 120. Overflow tank, 2. Acid delivery pipe, 3. Heater, 4. Acid-resistant pump, 5. Acid storage container, 6. Overflow pipe, 7. Tank body, 8. Ultrasonic vibrating rod, 9. Ultrasonic generator, 10. Reflux pipe, 11. Microporous sieve plate, 12. Sand discharge pipe, 13. Drain pipe, 14. Deacidification pipe, 15. Vacuum buffer acid storage tank, 16. Vacuum pump. DETAILED DESCRIPTION

[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0024] Example 1

[0025] like Figure 1 As shown, a particle material purification countercurrent pickling device for eliminating foam by ultrasonic means comprises:

[0026] The pickling tank 1 has an acid inlet connected in series with a heater 3, an acid-resistant pump 4 and an acid storage container 5 through an acid delivery pipe 2. The acid-resistant pump 4 is started, and the acid in the acid storage container 5 is delivered to the heater 3 through the acid-resistant pump 4, and then delivered to the pickling tank 1 after being heated by the heater 3.

[0027] An overflow groove 120 is provided on the inner edge of the upper cover 110 of the pickling tank 1. The overflow groove 120 is connected to the tank body 7 through the overflow pipe 6. The acid liquid after the foam is eliminated in the pickling tank 1 can overflow to the overflow groove 120 through the overflow port, and after the initial precipitation in the overflow groove 120, it flows to the tank body 7 through the overflow pipe 6.

[0028] The upper cover 110 is provided with a feeding port 111 , through which non-metallic mineral granular materials can be fed into the pickling tank 1 .

[0029] A plurality of ultrasonic vibration rods 8 extending below the liquid level in the pickling tank 1 are fixed on the upper cover 110 of the pickling tank 1. The specific number of ultrasonic vibration rods 8 installed is determined according to the radial cross-sectional area of ​​the pickling tank 1. The ultrasonic vibration rods 8 are connected to an ultrasonic generator 9. When the acid liquid rises to a position near the overflow port at the upper end of the pickling tank 1, the ultrasonic generator 9 is turned on. The ultrasonic generator 9 controls the ultrasonic vibration rods 8 to generate ultrasonic vibrations and emits the vibration energy into the liquid, thereby utilizing the cavitation effect of the ultrasonic wave to quickly burst the foam on the floating liquid surface to eliminate the foam.

[0030] The workflow is as follows:

[0031] The non-metallic mineral granular material to be pickled and purified is fed into the pickling tank 1 through the feed port 111, and the amount of the material added is determined according to the actual situation.

[0032] After the feeding is completed, the acid-resistant pump 4 is started, and the acid solution in the acid storage container 5 is sent to the heater 3 through the acid-resistant pump 4, and then sent to the pickling tank 1 after being heated by the heater 3.

[0033] When the acid liquid rises to the overflow port near the upper end of the pickling tank 1, the ultrasonic generator 9 is turned on. The ultrasonic generator 9 controls the ultrasonic vibration rod 8 to generate ultrasonic vibration and emits this vibration energy into the liquid, thereby utilizing the cavitation effect of the ultrasonic wave to quickly burst the foam on the floating liquid surface to eliminate the foam. After the foam is completely eliminated, the ultrasonic generator 9 can be turned off.

[0034] Example 2

[0035] like Figure 1 As shown, this embodiment is a further improvement on the basis of embodiment 1, and the details are as follows:

[0036] A plurality of mounting holes are provided on the upper cover 110 , and the ultrasonic vibration rod 8 is fixed in the mounting holes on the upper cover 110 , so that the installation of the ultrasonic vibration rod 8 is very convenient.

[0037] Example 3

[0038] like Figure 1 As shown, this embodiment is a further improvement on the basis of Embodiment 1 or 2, and the details are as follows:

[0039] A valve is provided on the acid delivery pipe 2 between the acid-resistant pump 4 and the heater 3 , and the valve can be used to control whether the acid-resistant pump 4 and the heater 3 are connected.

[0040] In addition, the heater 3 is preferably a heat exchanger, and the medium inlet of the heat exchanger is connected to an external heat source, which can be steam, heat transfer oil, high-temperature flue gas, hot water, etc. Of course, the heater 3 can also be in other forms.

[0041] A valve is provided on the acid delivery pipe 2 between the acid storage container 5 and the acid-resistant pump 4, and the valve can be used to control whether the acid-resistant pump 4 and the acid storage container 5 are connected.

[0042] Example 4

[0043] like Figure 1 As shown, this embodiment is a further improvement on any one of Embodiments 1 to 3, and the details are as follows:

[0044] The tank body 7 is a sand settling tank or a transfer acid liquid tank. The tank body 7 is connected to the acid-resistant pump 4 via a reflux pipe 10. The acid liquid after defoaming in the pickling tank 1 overflows into the overflow tank 120 and then enters the tank body 7 through the overflow pipe 6.

[0045] If the tank body 7 is a grit chamber, the clear liquid of the acid solution after the grit is settled in the grit chamber is sent to the acid-resistant pump 4 through the reflux pipe 10, and the acid-resistant pump 4 can send the clear liquid back to the pickling tank 1 through the heater 3 and the acid delivery pipe 2 to achieve recycling;

[0046] If the tank body 7 is a transfer acid tank, the acid is only transferred in the transfer acid tank, and then sent to the acid-resistant pump 4 through the reflux pipe 10. The acid-resistant pump 4 can return it to the pickling tank 1 through the heater 3 and the acid delivery pipe 2 to achieve recycling;

[0047] A valve is provided on the reflux pipe 10 , through which the conduction between the tank body 7 and the acid-resistant pump 4 can be controlled.

[0048] Example 5

[0049] like Figure 1 As shown, this embodiment is a further improvement on the basis of embodiment 4, and the details are as follows:

[0050] A microporous sieve plate 11 is provided at the bottom of the pickling tank 1. The micropore diameter of the microporous sieve plate 11 is 0.01mm-0.4mm, for example: 0.01mm, 0.03mm, 0.1mm, 0.2mm, 0.4mm, etc., which is determined according to actual conditions. A sand discharge pipe 12 with a valve is provided above the microporous sieve plate 11 of the pickling tank 1. A sewage pipe 13 with a valve and a deacidification pipe 14 with a valve are provided below the microporous sieve plate 11 of the pickling tank 1. The deacidification pipe 14 is connected with vacuum buffer acid storage tanks 15 and 16 in sequence through pipelines.

[0051] The acid enters the pickling tank 1 from the bottom, then flows upward through the microporous sieve plate 11, and mixes with the non-metallic mineral particles located above the microporous sieve plate 11. When a certain amount of hot acid enters, the non-metallic mineral particles begin to float or move relatively under the action of the upward rising force (buoyancy) of the acid, and directly exchange heat with the hot acid during the movement. At the same time, the hot acid begins to react chemically with impurities. The acid after heat exchange continues to rise to the top of the pickling tank 1. The acid after eliminating foam flows into the tank body 7 through the overflow pipe 6 to precipitate sand particles. The acid after removing sand particles flows from the tank body 7 through the The reflux pipe 10 enters the acid-resistant pump 4, and then is sent to the heater 3 through the acid-resistant pump 4 for heating before entering the pickling tank 1. After the pickling cycle is cyclically run for a predetermined period, the acid-resistant pump 4 is stopped, and the vacuum pump 16 is used to vacuum remove the acid solution. The vacuum pump 16 introduces the acid solution into the vacuum buffer acid storage tank 15. The vacuum removal of the acid solution saves the amount of acid and reduces the cost. The non-metallic mineral granular material after the acid solution is removed is then discharged through the sand discharge pipe 12 with water, which is beneficial to improve the purity. The acid discharge port of the vacuum buffer acid storage tank 15 is connected to the tank body 7, and the acid solution in the vacuum buffer acid storage tank 15 can flow into the tank body 7 through the acid discharge port. Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the utility model. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the utility model.

Claims

1. A countercurrent pickling device for purifying particulate materials by ultrasonically eliminating foam, characterized in that: It comprises a pickling tank, wherein the inner edge of the upper cover of the pickling tank is provided with a circle of overflow grooves, and the overflow grooves are connected with the tank body through an overflow pipe; the upper cover is also provided with a feeding port and a plurality of ultrasonic vibration rods extending below the liquid level in the pickling tank, and the ultrasonic vibration rods are connected with an ultrasonic generator; a microporous sieve plate is provided at the bottom of the pickling tank, and the microporous sieve plate is provided with a sand discharge pipe connected to the outside of the pickling tank.

2. A countercurrent pickling device for purifying particulate materials by ultrasonically eliminating foam according to claim 1, characterized in that: The upper cover is provided with a plurality of mounting holes, and the ultrasonic vibration rod is fixedly or detachably connected in the mounting holes.

3. A countercurrent pickling device for purifying particulate materials by ultrasonically eliminating foam according to claim 1, characterized in that: The bottom of the pickling tank is provided with an acid inlet, and the acid inlet is connected in series with a heater, an acid-resistant pump and an acid storage container in sequence through an acid delivery pipe.

4. A countercurrent pickling device for purifying particulate materials by ultrasonically eliminating foam according to claim 3, characterized in that: The acid liquid delivery pipe between the acid-resistant pump and the heater is provided with a valve; the acid liquid delivery pipe between the acid storage container and the acid-resistant pump is provided with a valve.

5. The device for purifying particulate material by ultrasonically eliminating foam according to claim 3, characterized in that: The heater is a heat exchanger.

6. A countercurrent pickling device for purifying particulate materials by ultrasonically eliminating foam according to claim 1, characterized in that: The micropore diameter of the microporous sieve plate is 0.01 mm to 0.4 mm.

7. A countercurrent pickling device for purifying particulate materials by ultrasonically eliminating foam according to claim 3, characterized in that: The pool body is connected to the acid-resistant pump through a reflux pipe, and a valve is arranged on the reflux pipe.

8. The device for purifying particulate material by ultrasonically eliminating foam according to claim 1, characterized in that: The pickling tank is provided with a sewage pipe with a valve and a deacidification pipe with a valve below the microporous sieve plate. The deacidification pipe is sequentially connected with the vacuum buffer acid storage tank and the vacuum pump through pipelines.

9. A countercurrent pickling device for purifying particulate materials by ultrasonically eliminating foam according to claim 8, characterized in that: The acid discharge port of the vacuum buffer acid storage tank is communicated with the tank body.

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