Crystallization tank for preparing well salt

Abstract

The utility model discloses a crystallization tank for preparing well salt, which comprises a tank body, a water cooling jacket is arranged on the periphery of the tank body, a stirring rod is rotatably mounted in the tank body, a plurality of stirring blades are arranged on the outer wall of the stirring rod, and the stirring rod and the stirring blades are hollow and are communicated with each other. The end, extending out of the top of the tank body, of the stirring rod is connected with a first connecting pipe through a rotary joint, the first connecting pipe and a water outlet of the water cooling jacket are connected with a liquid outlet pipe through a three-way joint, and the end, extending out of the bottom of the tank body, of the stirring rod is connected with a second connecting pipe through a rotary joint; and the connecting pipe II and the water inlet of the water cooling jacket are connected with a liquid inlet pipe through a three-way joint. According to the utility model, the water cooling jacket is arranged at the periphery of the tank body to cool the high-nitrate water in the tank body, the stirring rod and the stirring blade are arranged at the center in the tank body to cool the high-nitrate water in the tank body, and the high-nitrate water is in a flowing state when the stirring rod and the stirring blade rotate, so that the cooling crystallization efficiency of the high-nitrate water is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of well salt preparation, in particular to a crystallization tank for well salt preparation. Background Art

[0002] The technology currently used in the preparation of well salt is the advanced double-membrane brine refining and purification method in the brine refining industry. Ceramic membrane filtration is used to purify calcium and magnesium ions in the brine. Nanofiltration membrane filtration is used to deeply treat the purified brine. The products produced meet the standards for use in many industries. The crystallization tank is a storage tank used for cooling and crystallizing sodium sulfate in high-nitrate water during the preparation of well salt.

[0003] When performing cooling crystallization, an existing crystallization tank usually has a cold water jacket outside the crystallization tank to assist in cooling the high nitrate water inside the crystallization tank. However, the cooling range of the external cold water jacket is limited, and it is not easy to cool the high nitrate water at the center of the crystallization tank, resulting in a low cooling crystallization rate.

[0004] Therefore, we propose a crystallization tank for well salt preparation to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a crystallization tank for preparing well salt, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A crystallization tank for preparing well salt, comprising a tank body, a water-cooling jacket is arranged on the periphery of the tank body, a discharge pipe is connected to the bottom of the tank body, a stirring rod is rotatably installed inside the tank body, a plurality of stirring blades are arranged on the outer wall of the stirring rod, and the stirring rod and the stirring blades are hollow inside and communicate with each other, one end of the stirring rod extending from the top of the tank body is connected to a connecting pipe 1 through a rotating joint, and the connecting pipe 1 and the water outlet of the water-cooling jacket are connected to the liquid outlet pipe through a three-way joint, and one end of the stirring rod extending from the bottom of the tank body is connected to a connecting pipe 2 through a rotating joint, and the connecting pipe 2 and the water inlet of the water-cooling jacket are connected to the liquid inlet pipe through a three-way joint;

[0008] A conical gear ring is fixed to the periphery of one end of the stirring rod extending out of the top of the trough body, a conical gear ring is meshedly connected to the outer edge of the conical gear ring, and a motor is connected to the shaft of the conical gear.

[0009] In a further embodiment, the outer wall of the water cooling jacket is wrapped with a thermal insulation layer.

[0010] In a further embodiment, the thermal insulation layer is made of aluminum foil glass wool rolled felt.

[0011] In a further embodiment, a spiral partition plate is provided inside the water cooling jacket, and the partition plate divides the inside of the water cooling jacket into spiral liquid channels.

[0012] In a further embodiment, the stirring blades are inclined with respect to a horizontal plane, and the stirring blades on both sides of the stirring rod are inclined in opposite directions.

[0013] In a further embodiment, a push rod is fixed on the outer wall of the stirring rod near the bottom end, and the push rod is in contact with the inner bottom surface of the trough body.

[0014] In a further embodiment, a drainage pipe is also passed through the top of the trough body, and a water pump is installed at one end of the drainage pipe extending out of the top of the trough body.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides a water cooling jacket, a stirring rod and a stirring blade, so that the water cooling jacket can cool the high nitrate water in the tank body at the periphery of the tank body, while the stirring rod and the stirring blade can cool the high nitrate water in the tank body at the center of the tank body, and when the stirring rod and the stirring blade rotate, the high nitrate water is in a flowing state, so that the cooling distribution is uniform, thereby effectively improving the cooling crystallization efficiency of the high nitrate water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from top view;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model when viewed from above;

[0019] Figure 3 It is a partially cutaway three-dimensional structural schematic diagram of the utility model.

[0020] In the figure: 1. tank body; 2. water-cooling jacket; 3. discharge pipe; 4. stirring rod; 5. stirring blade; 6. conical gear ring; 7. conical gear; 8. motor; 9. rotary joint; 10. connecting pipe 1; 11. liquid outlet pipe; 12. connecting pipe 2; 13. liquid inlet pipe; 14. insulation layer; 15. partition plate; 16. push rod; 17. discharge pipe; 18. water pump. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood by specific circumstances.

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3A crystallization tank for preparing well salt comprises a tank body 1, a discharge pipe 3 is connected to the bottom of the tank body 1, an electromagnetic control valve is also arranged between the discharge pipe 3 and the tank body 1, the far end of the discharge pipe 3 is connected to a centrifuge so as to transport the crystallization liquid in the tank body 1 to the centrifuge for solid-liquid separation, and a feed pipe is arranged on the tank body 1 so as to facilitate the equipment of the previous process to transport high nitrate water to the inside of the tank body 1, a water cooling jacket 2 is arranged on the periphery of the tank body 1 for storing cooling water so as to facilitate cooling and lowering the temperature of the tank body 1 and accelerate crystallization, in order to improve the cooling crystallization efficiency, a stirring rod 4 is rotatably installed inside the tank body 1, a plurality of stirring blades 5 are arranged on the outer wall of the stirring rod 4, and the stirring rod 4 and the stirring blades 5 are hollow inside and connected to each other so as to facilitate the injection of cooling water so as to cool and lower the temperature of the high nitrate water inside the tank body 1, and in order to facilitate the circulation of cooling water and ensure the cooling efficiency, the stirring rod 4 is extended out A rotary joint 9 is installed at one end of the top of the tank body 1, and a connecting pipe 10 is connected to the side of the rotary joint 9, and the connecting pipe 10 is connected to the water outlet of the water-cooling jacket 2 through a three-way joint and a liquid outlet pipe 11, and the distal end of the liquid outlet pipe 11 is connected to the cooling water supply equipment. A rotary joint 9 is also installed at one end of the stirring rod 4 extending out of the bottom of the tank body 1, and a connecting pipe 2 12 is connected to the side of the rotary joint 9, and the connecting pipe 2 12 is connected to the water inlet of the water-cooling jacket 2 through a three-way joint and a liquid inlet pipe 13, and the distal end of the liquid inlet pipe 13 is also connected to the cooling water supply equipment. The cooling water supply equipment pumps cooling water from the bottom into the water-cooling jacket 2 and the stirring rod 4 through the liquid inlet pipe 13 through the pump body, and then the cooling water is filled in the water-cooling jacket 2, the stirring rod 4 and the stirring blade 5, and then overflows from the top, and then flows back into the cooling water supply equipment through the liquid outlet pipe 11, thereby completing the circulation of cooling water and ensuring its cooling effect.

[0025] See also Figure 1-3 In order to further enhance the cooling effect of the cooling water, an insulating layer 14 is wrapped on the outer wall of the water-cooling jacket 2. The insulating layer 14 is made of aluminum foil glass wool felt. The thermal conductivity of the aluminum foil glass wool felt is low, which can reduce the heat exchange between the water-cooling jacket 2 and the external ambient air, thereby ensuring sufficient heat exchange between it and the tank body 1. At the same time, a spiral partition plate 15 is provided inside the water-cooling jacket 2, and the partition plate 15 divides the water-cooling jacket 2 into a spiral liquid channel, so that the cooling water inside the water-cooling jacket 2 is a spiral rising flow line, ensuring the sufficiency of the cooling water flow, thereby improving its cooling uniformity.

[0026] See also Figure 1 and Figure 3In order to facilitate the control of the rotation of the stirring rod 4, a conical gear ring 6 is fixed to the periphery of one end of the stirring rod 4 extending out of the top of the trough body 1. The outer edge of the conical gear ring 6 is meshedly connected with a conical gear 7, and a motor 8 is connected to the shaft of the conical gear 7. The main part of the motor 8 is fixed to the top surface of the trough body 1. The motor 8 first drives the conical gear 7 to rotate, and then utilizes the meshing action of the conical gear 7 and the conical gear ring 6 to drive the stirring rod 4 to rotate. When the stirring rod 4 rotates, it can stir the high nitric acid water flow in the trough body 1, thereby improving the uniformity of cooling crystallization.

[0027] See also Figure 3 Furthermore, in order to reduce the resistance of the stirring rod 4 and the stirring blades 5 during rotation, the stirring blades 5 are arranged to be inclined with respect to the horizontal plane, and the stirring blades 5 on both sides of the stirring rod 4 are inclined in opposite directions, thereby ensuring that the stirring blades 5 on both sides of the stirring rod 4 can reduce the frontal impact resistance with the high nitric acid water when rotating.

[0028] See also Figure 3 Considering that sodium sulfate is in a solid state after crystallization, it accumulates on the top of the tank body 1 and easily blocks the discharge port, thereby causing poor output of the crystallized liquid. Therefore, a push rod 16 is fixed to the outer wall of the stirring rod 4 near the bottom end, and the push rod 16 is in contact with the inner bottom surface of the tank body 1, so that when the stirring rod 4 rotates, it can also drive the push rod 16 to scrape the inner bottom surface of the tank body 1, so as to clean the discharge port and prevent it from being blocked.

[0029] See also Figure 1 and Figure 3 In order to facilitate the discharge and cleaning of the uncrystallized liquid, a drainage pipe 17 is provided through the top of the tank body 1, and a water pump 18 is installed at one end of the drainage pipe 17 extending out of the top of the tank body 1, so as to facilitate the extraction of the uncrystallized liquid, thereby reducing the burden of the subsequent solid-liquid separation operation.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A crystallization tank for preparing well salt, comprising a tank body (1), characterized in that: The outer periphery of the tank body (1) is provided with a water cooling jacket (2), and the bottom of the tank body (1) is connected to a discharge pipe (3). A stirring rod (4) is rotatably mounted inside the tank body (1). A plurality of stirring blades (5) are provided on the outer wall of the stirring rod (4), and the stirring rod (4) and the stirring blades (5) are hollow inside and communicate with each other. One end of the stirring rod (4) extending from the top of the tank body (1) is connected to a connecting pipe (10) via a rotating joint (9), and the connecting pipe (10) and the water outlet of the water cooling jacket (2) are connected to a liquid outlet pipe (11) via a three-way joint. One end of the stirring rod (4) extending from the bottom of the tank body (1) is connected to a connecting pipe (12) via a rotating joint (9), and the connecting pipe (12) and the water inlet of the water cooling jacket (2) are connected to a liquid inlet pipe (13) via a three-way joint. A conical gear ring (6) is fixed to the periphery of one end of the stirring rod (4) extending out of the top of the tank body (1); a conical gear ring (7) is meshedly connected to the outer edge of the conical gear ring (6); and a motor (8) is connected to the shaft of the conical gear (7).

2. The crystallization tank for preparing well salt according to claim 1, characterized in that: The outer wall of the water-cooling jacket (2) is wrapped with a thermal insulation layer (14).

3. The crystallization tank for preparing well salt according to claim 2, characterized in that: The thermal insulation layer (14) is made of aluminum foil glass wool felt.

4. The crystallization tank for preparing well salt according to claim 1, characterized in that: A spiral partition plate (15) is provided inside the water cooling jacket (2), and the partition plate (15) divides the inside of the water cooling jacket (2) into spiral liquid channels.

5. The crystallization tank for preparing well salt according to claim 1, characterized in that: The stirring blades (5) are inclined with respect to a horizontal plane, and the stirring blades (5) on both sides of the stirring rod (4) are inclined in opposite directions.

6. The crystallization tank for preparing well salt according to claim 1, characterized in that: A push rod (16) is fixed on the outer wall of the stirring rod (4) near the bottom end, and the push rod (16) is in contact with the inner bottom surface of the tank body (1).

7. The crystallization tank for preparing well salt according to claim 1, characterized in that: A drainage pipe (17) also penetrates the top of the tank body (1), and a water pump (18) is installed at one end of the drainage pipe (17) extending out of the top of the tank body (1).

Images