Settling aid feeding and dissolving device for reducing turbidity of primary brine

Abstract

The utility model discloses a settling aid feeding and dissolving device for reducing the turbidity of primary brine, which comprises a feeding bin, a suction device, a discharge device, a pre-dissolving device, a dissolving overflow device and a storage device, the feeding bin is connected with the suction device through a discharge pipe, a filter cloth bag is arranged in the suction device, the upper part of the filter cloth bag is connected with an air suction pipe and an air blowing pipe, and the air blowing pipe is connected with the pre-dissolving device. The feeding device is arranged on the lower portion of the material suction device, the discharging auger is arranged at the bottom of the feeding device, the pre-dissolving device is arranged at a discharging port of the discharging auger, the pre-dissolving device is connected with the dissolving and overflowing device, and the dissolving and overflowing device is connected with the storage device. Compared with the prior art, the feeding and dissolving device disclosed by the utility model has the advantages that a settling agent is continuously added, the dissolving effect of the settling agent is improved, the settling speed of solid particles in a subsequent reactor can be accelerated, magnesium ions in a crude brine solution are effectively removed, the turbidity of primary brine is reduced, and the whiteness of secondary mud of precipitates is improved; and a foundation is laid for subsequent preparation of high-quality byproducts.

Description

Technical Field

[0001] This utility model relates to the field of soda ash manufacturing technology, and in particular to a flocculant feeding and dissolving device for reducing the turbidity of primary brine. Background Technology

[0002] In the brine refining process of the ammonia-soda process for soda ash manufacturing, raw salt must first be prepared into refined brine. Traditionally, this involves dissolving industrial raw salt in fresh water or brine to obtain primary crude brine. This primary crude brine is then fed into a primary magnesium removal unit where lime slurry and a flocculant are added for clarification and magnesium removal, yielding qualified primary brine. With the implementation of concentrated seawater utilization projects, seawater is being introduced into the production system to replace fresh water for salt production. Because seawater contains a large amount of calcium and magnesium impurities, the currently used flocculant feeding devices have short dissolution times, failing to meet production requirements. This results in slow magnesium removal settling and high turbidity, significantly impacting the quality of the primary brine and ultimately causing the primary brine supplied to subsequent processes to fail to meet quality standards. Due to the high turbidity of the primary brine, the secondary sludge obtained after calcium removal has low whiteness. The whiteness of the secondary sludge affects the whiteness of the subsequent ultrafine calcium carbonate product, ultimately impacting the quality of the finished calcium carbonate product. Therefore, there is an urgent need to develop a flocculant feeding and dissolution device to reduce the turbidity of the primary brine. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a flocculant addition and dissolution device for reducing the turbidity of primary brine.

[0004] To achieve this technical objective, the present invention adopts the following solution:

[0005] A flocculant dissolving device for reducing primary brine turbidity includes a feeding hopper, a suction device, a discharge device, a pre-dissolving device, a dissolving overflow device, and a storage device. The feeding hopper is connected to the suction device via a discharge pipe. A filter bag is installed inside the suction device, and an air suction pipe and an air blowing pipe are connected to the upper part of the filter bag. A feeder is installed at the lower part of the suction device, and a discharge auger is installed at the bottom of the feeder. The pre-dissolving device is located at the discharge port of the discharge auger and is connected to the dissolving overflow device. The dissolving overflow device is connected to the storage device.

[0006] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0007] This utility model device uses a suction device to draw the flocculant material from the feeding hopper into the feeder. At the same time, a compressed air source intermittently blows the material adhering to the filter bag through a blower. The material is discharged through a discharge auger into a pre-dissolving device, where water is added. The material is pre-dissolved in the pre-dissolving device and then flows into a dissolving overflow device for complete dissolution. After dissolution, the material overflows into a storage device. The solution in the storage device is then pumped into a reactor by a transfer pump to undergo solid-liquid sedimentation with crude brine.

[0008] By employing the feeding and dissolving device of this invention, the flocculant can be continuously added without interruption, thereby improving the dissolution effect of the flocculant. This accelerates the settling speed of solid particles in the subsequent reactor, effectively removes magnesium ions from the crude brine solution, reduces the turbidity of the primary brine, and improves the whiteness of the secondary sludge, thus laying a solid foundation for the subsequent preparation of high-quality by-products.

[0009] Furthermore, a level gauge is installed inside the feeding hopper, and a discharge port is installed at the bottom of the feeding hopper.

[0010] Furthermore, the discharge pipe extends through the feeding hopper, with an air inlet at the end of the discharge pipe and a feeding hole at the portion of the discharge pipe located inside the feeding hopper.

[0011] Furthermore, one end of the blower is connected to a compressed air source, and the other end of the blower extends into the interior of the filter bag; one end of the suction pipe extends into the interior of the filter bag, and the other end of the suction pipe is connected to a vacuum pump.

[0012] Furthermore, the pre-dissolving device is equipped with a water supply pipe, and a flow meter is installed on the water supply pipe. The outlet of the pre-dissolving device is connected to the inlet of the dissolving overflow device.

[0013] Furthermore, the dissolving overflow device is equipped with a stirring device inside, and the upper overflow port of the dissolving overflow device is connected to the feed port of the storage device.

[0014] Furthermore, a discharge pipe is connected to the bottom of the storage device, and a conveying pump and a flow meter are installed on the discharge pipe. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a flocculant feeding and dissolving device for reducing primary brine turbidity according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the feeding hopper structure according to an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the material suction device structure according to an embodiment of the present utility model;

[0018] The markings in the diagram are as follows: 1. Feeding bin; 2. Air inlet; 3. Discharge port; 4. Level gauge; 5. Discharge pipe; 6. Suction device; 7. Compressed air source; 8. Blowing pipe; 9. Suction pipe; 10. Vacuum pump; 11. Feeder; 12. Discharge auger; 13. Pre-dissolving device; 14. Water supply pipe; 15. Flow meter; 16. Dissolving overflow device; 17. Storage device; 18. Conveying pump; 19. Filter bag. Detailed Implementation

[0019] To fully understand the purpose, features and effects of this utility model, the following specific embodiments will be used to describe this utility model in detail, but this utility model is not limited thereto.

[0020] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly on the other component. When a component is referred to as "connected to" or "laid on" another component, it can be directly connected to or indirectly connected to the other component.

[0021] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0023] See Figures 1 to 3This utility model provides a flocculant dissolving device for reducing the turbidity of primary brine, comprising a feeding bin 1, a suction device 6, a discharge device, a pre-dissolving device 13, a dissolving overflow device 16, and a storage device 17. The feeding bin 1 is connected to the suction device 6 via a discharge pipe 5, which penetrates the feeding bin 1. An air inlet 2 is provided at the end of the discharge pipe 5, and a feed hole is provided at the portion of the discharge pipe 5 inside the feeding bin 1. The suction device 6 has a stainless steel tank shell and a filter bag 19 inside to prevent the flocculant from entering the vacuum pump 10 and causing damage. An air suction pipe 9 and an air blowing pipe 8 are connected to the upper part of the filter bag 19. One end of the air blowing pipe 8 is connected to a compressed air source 7, and the other end extends into the interior of the filter bag 19. One end of the air suction pipe 9 extends into the interior of the filter bag 19, and the other end is connected to the vacuum pump 10. A feeder 11 is provided at the lower part of the feeding device 6, and a discharge auger 12 is provided at the bottom of the feeder 11. A pre-dissolving device 13 is provided at the outlet of the discharge auger 12. A water supply pipe 14 is provided on the pre-dissolving device 13, and a flow meter 15 is provided on the water supply pipe 14. The outlet of the pre-dissolving device 13 is connected to the inlet of the dissolving overflow device 16. A stirring device is provided inside the dissolving overflow device 16. The upper overflow port of the dissolving overflow device 16 is connected to the inlet of the storage device 17. The bottom of the storage device 17 is connected to a discharge pipe, and a conveying pump 18 and a flow meter 15 are provided on the discharge pipe. The solution in the storage device 17 is sent into the reactor by the conveying pump 18 to undergo solid-liquid sedimentation with the crude brine.

[0024] In some embodiments, a level gauge 4 is provided in the feeding bin 1 to detect the material in the feeding bin 1, and a discharge port 3 is provided at the bottom of the feeding bin 1.

[0025] The working process of this feeding and dissolving device is as follows:

[0026] The settling agent is added to the feeding hopper 1, and the material level in the feeding hopper 1 is monitored in real time by the level gauge 4. The vacuum pump 10 is started, and negative pressure is generated in the suction device 6 through the suction pipe 9. The gas enters the discharge pipe 5 through the air inlet 2. The settling agent in the feeding hopper 1 enters the discharge pipe 5 through the feed hole on the discharge pipe 5, and enters the interior of the suction device 6 with the gas. Part of the settling agent enters the feeder 11, and part of it adheres to the outside of the filter bag 19. The compressed air source 7 is turned on, and the material adhering to the filter bag 19 is blown intermittently through the blower pipe 8 to prevent the material from clogging the filter bag 19. In this embodiment, the compressed air source 7 is provided by an air compressor. The material is discharged through the discharge auger 12 into the pre-dissolving device 13. At the same time, water is added to the pre-dissolving device 13. The material is pre-dissolved in the pre-dissolving device 13. After pre-dissolving, it flows into the dissolving overflow device 16. It is fully dissolved in the dissolving overflow device 16. After dissolving, it overflows to the storage device 17. The solution in the storage device 17 is sent to the reactor by the transfer pump 18 to undergo solid-liquid sedimentation with the crude brine.

[0027] The feeding and dissolving device of this invention uses alternating suction and blowing to ensure continuous addition of the flocculant, thereby improving its dissolution effect. This accelerates the settling speed of solid particles in the subsequent reactor, effectively removes magnesium ions from the crude brine solution, reduces the turbidity of the primary brine, and improves the whiteness of the secondary sludge, thus laying a solid foundation for the subsequent preparation of high-quality by-products.

[0028] This feed dissolving device can also be used in the brine refining process in other types of chemical production.

[0029] Finally, it should be noted that the above-listed embodiments are merely preferred embodiments of the present invention. Of course, those skilled in the art can make modifications and variations to the present invention. If such modifications and variations fall within the scope of the claims of the present invention and their equivalents, they should be considered as being within the protection scope of the present invention.

Claims

1. A setting aid feeding dissolving device for reducing the turbidity of primary brine, comprising a feeding bin (1), a material suction device (6), a discharging device, a pre-dissolving device (13), a dissolving overflow device (16) and a storage device (17), characterized in that, The feeding bin (1) is connected with the material suction device (6) through the discharge pipe (5), the filter cloth bag (19) is arranged in the material suction device (6), the filter cloth bag (19) is connected with the air suction pipe (9) and the air blowing pipe (8) at the upper portion, the lower portion of the material suction device (6) is provided with the discharger (11), the bottom of the discharger (11) is provided with the discharge auger (12), the pre-dissolution device (13) is arranged at the discharge opening of the discharge auger (12), the pre-dissolution device (13) is connected with the dissolution overflow device (16), the dissolution overflow device (16) is connected with the storage device (17).

2. The setting aid dosing device for reducing the turbidity of primary brine according to claim 1, characterized in that, The feeding bin (1) is provided with the material level meter (4), and the bottom of the feeding bin (1) is provided with the discharge opening (3).

3. The setting aid dosing device for reducing the turbidity of primary brine according to claim 1, characterized in that, The discharge pipe (5) penetrates the feeding bin (1), the end of the discharge pipe (5) is provided with the air inlet (2), and the part of the discharge pipe (5) in the feeding bin (1) is provided with the feeding hole.

4. The setting aid dosing device for reducing the turbidity of primary brine according to claim 1, characterized in that, One end of the air blowing pipe (8) is connected with the compressed air source (7), the other end of the air blowing pipe (8) extends into the inside of the filter cloth bag (19); one end of the air suction pipe (9) extends into the inside of the filter cloth bag (19), and the other end of the air suction pipe (9) is connected with the vacuum pump (10).

5. The setting aid dosing device for reducing the turbidity of primary brine according to claim 1, characterized in that, The pre-dissolution device (13) is provided with the water conveying pipeline (14), the water conveying pipeline (14) is provided with the flowmeter (15), and the discharge opening of the pre-dissolution device (13) is connected with the feeding opening of the dissolution overflow device (16).

6. The setting aid dosing device for reducing the turbidity of primary brine according to claim 1, characterized in that, The inside of the dissolution overflow device (16) is provided with the stirring device, and the upper overflow opening of the dissolution overflow device (16) is connected with the feeding opening of the storage device (17).

7. The setting aid dosing device for reducing the turbidity of primary brine according to claim 1, characterized in that, The bottom of the storage device (17) is connected with the discharge pipeline, the discharge pipeline is provided with the conveying pump (18) and the flowmeter (15).

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