Particle material fluidization pickling device for removing foam in vacuumizing mode

Abstract

The utility model relates to a particle material fluidization pickling device capable of removing foam in a vacuumizing mode, which comprises a pickling tank, a detachable upper cover is arranged at the top of the pickling tank, the bottom of the pickling tank is of a porous structure, and the bottom of the pickling tank is connected with an acid liquor buffer cavity in a sealing mode. A circle of overflow groove is formed in the inner edge, in contact with the top of the pickling tank, of the upper cover, and the overflow groove is connected with the acid liquor buffer cavity through a return pipeline; a foam suction device is further connected into the upper cover and comprises a suction inlet formed in the upper cover and vacuum suction equipment arranged outside the upper cover. The device has the beneficial effects that by additionally arranging the foam suction pipe, the vacuum filtering tank and the vacuum suction equipment, foam can be sucked into the vacuum filtering tank to be treated in a vacuumizing mode, so that the foam generated in the pickling process is eliminated, and normal pickling operation is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical engineering, in particular to a fluidized acid washing device for removing foam from granular materials in a vacuuming manner. Background Art

[0002] Non-metallic mineral granular materials are generally prepared by wet method in the preparation process. The purpose is to reduce the dust pollution generated in the preparation process. In addition, it is convenient to remove the iron brought in during the preparation of granular materials as much as possible through wet magnetic separation. After the granular materials are prepared, their specific surface area increases, the surface energy is large, and the adsorption capacity is also increased. The particle surface has a strong ability to adsorb impurities - the adsorbed impurities include not only liquids and solids but also gases. Therefore, during the fluidized acid purification process, the granular materials have many pores when they enter the pickling tank and accumulate. There will be a lot of air between the pores. Therefore, after the acid enters the bottom of the pickling tank, it slowly rises. During the rising process, the air is slowly driven out, thus forming a lot of foam. If the foam cannot be effectively removed, it will cause inconvenience to the normal operation of the pickling process. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a fluidized acid washing device for removing foam from granular materials in a vacuuming 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 fluidized pickling device for particulate materials for removing foam by vacuuming, comprising: a pickling tank, a detachable upper cover is arranged on the top of the pickling tank, a porous bottom structure is formed, and an acid buffer chamber is sealed and connected to the bottom; a circle of overflow grooves is arranged on the inner edge of the upper cover in contact with the top of the pickling tank, and the overflow groove is connected to the acid buffer chamber through a reflux pipeline; a foam suction device is also connected inside the upper cover, and the foam suction device comprises a suction inlet arranged inside the upper cover and a vacuum suction device arranged outside the upper cover.

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

[0006] Furthermore, a feeding port is provided on the upper cover.

[0007] Furthermore, a sand discharge port is provided at the bottom of the porous structure of the pickling tank, and the sand discharge port is provided with a sealing plug or a valve that can be opened from the outside.

[0008] Furthermore, a filter cloth is placed at the suction inlet to prevent solid particles from entering the vacuum suction device and damaging the device.

[0009] Furthermore, the suction inlet comprises a main suction pipe and a plurality of branch suction pipes connected to the main suction pipe, a plurality of suction holes are arranged on the pipe wall of the branch suction pipe, and the main suction pipe is connected to the vacuum suction device through a pipeline.

[0010] Furthermore, the branch suction pipes are arranged above the liquid level in the pickling tank and are evenly or symmetrically distributed in the cross-sectional area of ​​the pickling tank.

[0011] Furthermore, the main suction pipe is connected to at least two vacuum filter tanks via a pipeline, and each vacuum filter tank is connected to the vacuum suction equipment via a pipeline.

[0012] Furthermore, a valve is provided at the inlet of the vacuum filter tank, a valve is provided at the outlet of the vacuum filter tank, the main suction pipe is connected to the valve at the inlet of the vacuum filter tank via a pipeline, and the valve at the outlet of the vacuum filter tank is connected to the vacuum suction equipment via a pipeline.

[0013] Furthermore, the vacuum suction equipment is a water jet vacuum pump; or, the vacuum suction equipment is an acid mist absorption tower and a fan connected in sequence, and the vacuum filter tank is connected to the acid mist absorption tower through a pipeline.

[0014] Furthermore, the acid buffer chamber 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.

[0015] Furthermore, a valve is provided on the acid delivery pipe between the acid-resistant pump and the heater.

[0016] Further, the heater is a heat exchanger.

[0017] Furthermore, a valve is provided on the acid delivery pipe between the acid storage container and the acid-resistant pump.

[0018] Furthermore, a sand settling tank is provided in the reflux pipeline.

[0019] Furthermore, the grit chamber is connected to an acid-resistant pump, a heater and an acid buffer chamber in sequence through pipelines, and is further provided with a valve.

[0020] The beneficial effects of the utility model are:

[0021] 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;

[0022] 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;

[0023] When the acid rises to the overflow port of the pickling tank, turn on the vacuum suction device, and the foam will enter the foam suction pipe through the suction hole on the foam suction pipe, and then enter the vacuum filter tank through the pipeline. After the foam in the pickling tank is completely eliminated, the vacuum suction device can be turned off;

[0024] By adding a foam suction pipe, a vacuum filter tank and a vacuum suction device, the foam can be sucked into the vacuum filter tank for treatment by vacuuming, thereby eliminating the foam generated during the pickling process to avoid affecting the normal operation of the pickling. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of a fluidized acid washing device for removing foam from particulate materials in a vacuum manner in the utility model;

[0026] Figure 2 It is a partial structural diagram of the fluidized acid washing device for removing foam from particulate materials in the utility model by vacuuming.

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Pickling tank, 110. Upper cover, 120. Overflow trough, 130. Feeding port, 2. Acid delivery pipe, 3. Heater, 4. Acid-resistant pump, 5. Acid storage container, 6. Overflow pipe, 7. Grit chamber, 8. Foam suction pipe, 810. Main suction pipe, 820. Branch suction pipe, 821. Suction hole, 9. Vacuum filter tank, 10. Vacuum suction equipment, 11. Reflux pipe. DETAILED DESCRIPTION

[0029] 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.

[0030] Example 1

[0031] like Figure 1 As shown, a fluidized pickling device for removing foam from particulate materials by vacuuming comprises: a pickling tank 1, the top of which is provided with a detachably connected upper cover 110, and the upper cover 110 can form a sealing structure when buckled with the pickling tank 1. The bottom of the pickling tank 1 is a porous structure, and the bottom is sealed with an acid buffer chamber, which can separate the particulate material and the pickling liquid. An acid inlet is provided at the acid buffer chamber, and the acid inlet is connected in series with a heater 3, an acid-resistant pump 4 and an acid storage container 5 in sequence through an acid delivery pipe 2. The acid-resistant pump 4 is started, and the acid in the acid storage container 5 is sent into the heater 3 through the acid-resistant pump 4, and then sent into the pickling tank 1 after being heated by the heater 3.

[0032] An overflow groove 120 is arranged on the inner edge of the upper cover 110 of the pickling tank 1, and the overflow groove 120 is fitted and sealed with the top opening of the pickling tank 1, and is used to collect the acid solution overflowing from the pickling tank 1. The overflow groove 120 is connected to the grit tank 7 through the overflow pipe 6, and the solution in the pickling tank 1 can overflow to the overflow groove 120 through the overflow port, and then flow to the grit tank 7 through the overflow pipe 6.

[0033] The upper cover 110 is provided with a feeding port 130 , through which non-metallic mineral granular materials can be fed into the pickling tank 1 .

[0034] A foam suction pipe 8 is provided above the overflow port in the pickling tank 1, and a plurality of suction holes 821 are provided on the pipe wall of the foam suction pipe 8. The foam suction pipe 8 is connected to the vacuum filter tank 9 via a pipe, and the vacuum filter tank 9 is connected to the vacuum suction device 10 via a pipe.

[0035] The porous bottom of the pickling tank 1 is provided with a sand discharge port, the sand discharge port is provided with a sand discharge pipe connecting the pickling tank 1 and the outside of the acid buffer chamber, and is provided with a valve.

[0036] The workflow is as follows:

[0037] The non-metallic mineral granular material to be pickled and purified is fed into the pickling tank 1 through the feed port 130, and the amount of the added material is determined according to the actual situation.

[0038] 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.

[0039] When the acid liquid rises to the overflow port of the pickling tank 1, the vacuum suction device 10 is turned on. The vacuum suction device 10 will evacuate the vacuum filter tank 9, so that the foam enters the foam suction pipe 8 through the suction hole 821 on the foam suction pipe 8, and then enters the vacuum filter tank 9 through the pipeline. The foam is filtered in the vacuum filter tank 9. After the foam in the pickling tank 1 is completely eliminated, the vacuum suction device 10 can be turned off.

[0040] Example 2

[0041] like Figure 2 As shown, this embodiment is a further improvement on the basis of embodiment 1, and the details are as follows:

[0042] The suction hole 821 on the foam suction tube 8 can be a large hole or a microhole. When it is a large hole, a filter cloth is put on the suction hole 821 of the foam suction tube 8, or a filter net is covered on the foam suction tube 8 to prevent particulate materials from being sucked into the vacuum filter tank 9.

[0043] Example 3

[0044] like Figure 1 , Figure 2 As shown, this embodiment is a further improvement on the basis of Embodiment 1 or 2, and the details are as follows:

[0045] The foam suction pipe 8 includes: a main suction pipe 810 and a plurality of branch suction pipes 820 connected to the main suction pipe 810. A plurality of suction holes 821 are provided on the wall of the branch suction pipe 820. The main suction pipe 810 is connected to the vacuum filter tank 9 via a pipeline. The foam enters the branch suction pipe 820 via the suction holes 821, then enters the main suction pipe 810 via the branch suction pipe 820, and finally enters the vacuum filter tank 9 via the pipeline.

[0046] In this embodiment: the main suction pipe 810 is connected to at least two vacuum filter tanks 9 through a pipeline, each vacuum filter tank 9 is connected to a vacuum suction device 10 through a pipeline, the inlet of the vacuum filter tank 9 is provided with a valve, and the outlet of the vacuum filter tank 9 is provided with a valve. The main suction pipe 810 is connected to the valve at the inlet of the vacuum filter tank 9 through a pipeline, and the valve at the outlet of the vacuum filter tank 9 is connected to the vacuum suction device 10 through a pipeline. By switching the valve, the vacuum filter tank 9 can be selectively used.

[0047] Furthermore: the vacuum suction device 10 is a water jet vacuum pump; or, the vacuum suction device 10 is an acid mist absorption tower and a fan connected in sequence, the vacuum filter tank 9 is connected to the acid mist absorption tower through a pipeline, and the fan is started, and the acid mist in the vacuum filter tank 9 can be sucked into the acid mist absorption tower to remove the acid mist.

[0048] Example 4

[0049] 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:

[0050] 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.

[0051] 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 can also be in other forms.

[0052] 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.

[0053] Example 5

[0054] like Figure 1As shown, this embodiment is a further improvement on any one of Embodiments 1 to 4, and the details are as follows:

[0055] The grit chamber 7 is connected to the acid-resistant pump 4 by a reflux pipe 11. The solution after defoaming in the pickling tank 1 overflows into the overflow tank 120, and then enters the grit chamber 7 through the overflow pipe 6. The clear liquid after sand settling in the grit chamber 7 is sent to the acid-resistant pump 4 through the reflux pipe 12. The acid-resistant pump 4 can return the acid to the pickling tank 1 through the heater 3 and the acid delivery pipe 2 to achieve recycling. A valve is provided on the reflux pipe 11, and the valve can be used to control whether the grit chamber 7 and the acid-resistant pump 4 are connected.

[0056] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A fluidized acid washing device for removing foam from granular materials by vacuuming, characterized in that: include: A pickling tank, wherein a detachable upper cover is arranged on the top of the pickling tank, the bottom is a porous structure, and the bottom is sealed and connected with an acid buffer chamber; a circle of overflow grooves is arranged on the inner edge of the upper cover in contact with the top of the pickling tank, and the overflow groove is connected to the acid buffer chamber through a reflux pipeline; a foam suction device is also connected inside the upper cover, and the foam suction device includes a suction inlet arranged inside the upper cover and a vacuum suction device arranged outside the upper cover.

2. A fluidized acid washing device for removing foam from particulate materials by vacuuming according to claim 1, characterized in that: A filter cloth is placed at the suction inlet.

3. The fluidized acid washing device for removing foam from particulate materials by vacuuming according to claim 1, characterized in that: The suction inlet comprises: a main suction pipe and a plurality of branch suction pipes connected to the main suction pipe, a plurality of suction holes are arranged on the pipe wall of the branch suction pipe, and the main suction pipe is connected to the vacuum suction device through a pipeline.

4. A fluidized acid washing device for removing foam from particulate materials by vacuuming according to claim 3, characterized in that: The main suction pipe is connected to at least two vacuum filter tanks via a pipeline, and each vacuum filter tank is connected to a vacuum suction device via a pipeline.

5. A fluidized acid washing device for removing foam from particulate materials by vacuuming according to claim 4, characterized in that: The inlet of the vacuum filter tank is provided with a valve, the outlet of the vacuum filter tank is provided with a valve, the main suction pipe is connected with the valve at the inlet of the vacuum filter tank through a pipeline, and the valve at the outlet of the vacuum filter tank is connected with the vacuum suction equipment through a pipeline.

6. The fluidized acid washing device for removing foam from particulate materials by vacuuming according to claim 1, characterized in that: The acid buffer chamber 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.

7. A fluidized acid washing device for removing foam from particulate materials by vacuuming according to claim 6, characterized in that: Valves are provided on the acid delivery pipes between the acid-resistant pump and the heater, and between the acid storage container and the acid-resistant pump.

8. The fluidized acid washing device for removing foam from particulate materials by vacuuming according to claim 6, characterized in that: The heater is a heat exchanger.

9. The fluidized acid washing device for removing foam from particulate materials by vacuuming according to claim 1, characterized in that: A sand settling tank is arranged in the return pipeline.

10. The fluidized acid washing device for removing foam from particulate materials by vacuuming according to claim 6, characterized in that: A sand settling tank is arranged in the reflux pipeline, and the sand settling tank is connected to an acid-resistant pump, a heater and an acid buffer chamber in sequence through pipelines.

Images