A salt solution station cooperating with regeneration of sodium ion exchanger in cigarette factory

Abstract

This invention provides a brine station for regenerating sodium ion exchangers in cigarette factories, comprising: an upper salt bin; industrial salt is fed into the bin via a bucket elevator, accumulating on a salt-stacking ramp and sliding down to the outlet at the bottom of the bin by its own weight; a lower, adjacent salt dissolving tank and a brine tank; the lower parts of the salt dissolving tank and the brine tank are connected by several drainage caps, with the inlet end of the drainage cap connected to the salt dissolving tank and the outlet end connected to the brine tank; the salt dissolving tank receives industrial salt discharged from the salt bin and softened water from the sodium ion exchanger; the brine tank outputs salt solution through two regenerated salt solution delivery pipes equipped with pumps connected to the salt solution outlet, one pumping to the backwash inlet of the sodium ion exchanger and the other pumping to the salt dissolving circulation port. This invention features automatic feeding, salt storage, and brine preparation functions, improving the regeneration effect of the sodium ion exchanger, ensuring the quality of softened water, and increasing the production efficiency of cigarette factories.

Description

Technical Field

[0001] This utility model relates to a water treatment technology for cigarette factories, and more specifically, a brine station for regenerating sodium ion exchangers in cigarette factories. Background Technology

[0002] Water treatment is crucial in the cigarette factory's production process. Sodium ion exchangers are used to remove hardness ions such as calcium and magnesium ions from water to produce softened water, ensuring the normal operation of production equipment. After a period of operation, the sodium ions on the exchange resin of the sodium ion exchanger are gradually replaced by calcium and magnesium ions. At this point, the sodium ion exchanger needs to be regenerated. During the regeneration process, the resin needs to be rinsed with a certain concentration of brine to restore its exchange capacity.

[0003] Traditional sodium ion exchanger regeneration and salting relies on manual operation. Workers need to frequently add industrial salt to the salt tank, which is not only labor-intensive but also prone to untimely or inaccurate salt addition, affecting the stability of the brine concentration and resulting in poor sodium ion exchanger regeneration. This affects the quality of softened water and indirectly has an adverse impact on cigarette factory production. Furthermore, many existing salt tanks are open, with their tops directly exposed to the air. Dust from the workshop easily falls into the salt tank, mixing with the brine to form suspended solids. In the humid environment, algae and bacteria easily proliferate, leading to increased biological slime in the brine, which is also detrimental to the efficient regeneration of the sodium ion exchanger. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model proposes a brine station for regenerating sodium ion exchangers in cigarette factories. It features automatic feeding, salt storage, and brine preparation functions, which can improve the regeneration effect of sodium ion exchangers, ensure the quality of softened water, and enhance the production efficiency of cigarette factories.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A brine station for regenerating sodium ion exchangers in a cigarette factory includes:

[0007] Located in the upper layer of the salt bin; industrial salt is fed into the bin through the salt inlet on the top of the bin via a bucket elevator, and accumulates on the salt-piling slope formed at the bottom of the bin. It can slide down the salt-piling slope by its own weight to the salt outlet with a gate at the bottom of the bin, and is discharged through the salt outlet when the gate is opened.

[0008] Located on the lower level, there are adjacent salt dissolving tanks and brine tanks. The lower parts of the salt dissolving tanks and brine tanks are connected by several drainage caps. The inlet end of the drainage cap is connected to the salt dissolving tank, and the outlet end is connected to the brine tank. The salt dissolving tank receives industrial salt discharged from the salt outlet of the salt tank through the salt dissolving inlet at the top of the tank and receives softened water from the sodium ion exchanger through the salt dissolving water inlet at the top of the tank. The salt solution in the tank flows into the brine tank through the drainage caps. The upper part of the tank is also equipped with a salt dissolving overflow outlet and a salt dissolving circulation outlet. The brine tank is equipped with a salt solution overflow outlet at the top of the tank. The salt solution is output through two regeneration salt solution delivery pipes equipped with delivery pumps connected to the salt solution outlet at the bottom of the tank. One pipe is pumped to the backwash inlet of the sodium ion exchanger, and the other pipe is pumped to the salt dissolving circulation outlet.

[0009] The structural features of this utility model also lie in:

[0010] The salt inlet at the top of the salt dissolving tank is located below the salt outlet at the bottom of the side wall of the salt tank, with its upper edge positioned next to the bottom edge of the salt outlet.

[0011] The top of the salt dissolving tank is equipped with a guide trough, which is a vertically penetrating, right-angled trapezoidal cubic cavity shell. The large end is adapted to be connected to the lower end of the salt dissolving inlet and is inclined towards the side of the salt outlet.

[0012] The dissolved salt overflow port is at the same height as the salt solution overflow port.

[0013] The two regenerated brine delivery pipes output brine in parallel, and their input ends converge to connect with the brine outlet of the brine tank.

[0014] The angle of inclination of the salt pile slope is greater than the angle of accumulation of industrial salt.

[0015] Compared with existing technologies, the beneficial effects of this utility model are reflected in:

[0016] This invention provides a stable supply of regenerated brine for sodium ion exchangers: First, industrial salt is fed into a salt silo via a bucket elevator, stored within the silo, and then controlled into a dissolving salt tank through a gated outlet, reducing manual intervention and avoiding problems such as untimely or inaccurate salt addition, or contamination from exposed industrial salt. Second, the relatively enclosed dissolving salt tank further prevents contamination of the brine. It receives industrial salt and softened water from the sodium ion exchanger to generate regenerated brine, which is then filtered through a drain cap before flowing into the brine tank, further ensuring the cleanliness and concentration stability of the regenerated brine. Third, the regenerated brine in the brine tank can be pumped to the dissolving salt circulation port of the dissolving salt tank for reflux, promoting uniform mixing and preventing salt precipitation and concentration stratification, further ensuring the stability of the regenerated brine concentration. These multiple safeguards work together to provide high-quality backwash regenerated brine for sodium ion exchangers, improving their regeneration efficiency and extending their service life.

[0017] This utility model is reliable in operation: the structure of the overflow, drainage and water replenishment of the pool is reasonable, which ensures the stability and reliability of the brine station in the long-term operation, reduces the equipment failure rate and reduces maintenance costs;

[0018] This invention enables automatic control: including automatic feeding via bucket elevator, gate control of industrial salt entering the salt dissolving tank, combined with automatic control functions for water replenishment, overflow and emptying of the water tank, and pumping of regenerated salt solution, realizing fully automated operation from industrial salt storage to regenerated salt solution preparation and supply, reducing the labor intensity of workers. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main elevation structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the left elevation of this utility model;

[0021] Figure 3 This is a schematic diagram of the right-side elevation of the salt storage, salt dissolving pool, and brine pool locations.

[0022] Figure 4 This is a schematic diagram of the planar structure showing the location distribution of the salt dissolving pools and the brine pools;

[0023] Figure 5 This is a schematic diagram of the process flow of this utility model.

[0024] In the picture:

[0025] 1. Salt bin; 11. Salt inlet; 12. Salt stacking ramp; 13. Salt outlet; 14. Gate; 15. Bucket elevator;

[0026] 2. Salt dissolving tank; 21. Salt dissolving inlet; 22. Feed guide trough; 23. Salt dissolving water supply inlet; 24. Salt dissolving overflow outlet; 25. Salt dissolving circulation outlet; 26. Salt dissolving vent outlet; 27. Softened water supply pipe;

[0027] 3. Brine tank; 31. Brine overflow outlet; 32. Brine drain outlet; 33. Maintenance manhole; 34. Brine outlet; 35. Regenerated brine delivery pipe; 36. Delivery pump;

[0028] 4. Drainage caps;

[0029] 5 Sodium ion exchanger outlet pipes; 51 branch lines. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] Please refer to Figures 1 to 5 The brine station in this embodiment, designed for use with the sodium ion exchanger regeneration system in a cigarette factory, is a two-story concrete structure equipped with a platform ladder and guardrails made of non-slip, corrosion-resistant material for easy inspection, maintenance, and operation. It includes:

[0032] The upper salt bin 1 is used to store industrial salt. The industrial salt is fed into the bin 1 through the salt inlet 11 at the top of the bin via a bucket elevator 15. It is piled up on the salt-piling slope 12 formed at the bottom of the bin and can slide down the salt-piling slope 12 by its own weight to the salt outlet 13 with a gate 14 at the bottom of the bin. When the gate 14 is opened, it is discharged through the salt outlet 13. This gate 14 is normally closed and the opening degree is adjustable. It can be opened manually or electrically when industrial salt needs to be added to the salt dissolving pool 2.

[0033] Located on the lower level, adjacent to each other, are two parallel salt dissolving tanks 2 and 3. The lower parts of the salt dissolving tank 2 and the lower parts of the 3 are connected by several drainage caps 4. The inlet end of the drainage caps 4 connects to the salt dissolving tank 2, and the outlet end connects to the 3, also serving a certain filtering function to ensure the cleanliness of the salt solution flowing into the 3. The salt dissolving tank 2 receives industrial salt discharged from the salt outlet 13 of the salt tank 1 through the salt dissolving inlet 21 at the top of the tank, and receives softened water from the sodium ion exchanger through the salt dissolving water inlet 23 at the top of the tank. The liquid flows into the brine tank 3 through several drainage caps 4. The upper part of the tank is equipped with a salt overflow outlet 24 and a salt circulation outlet 25, while the lower part is equipped with a salt vent outlet 26. The brine tank 3 has a brine overflow outlet 31 at the upper part, and the brine is output through two regeneration brine delivery pipes 35, each equipped with a delivery pump 36, connected to the brine outlet 34 at the lower part of the tank. One pipe is pumped to the backwash inlet of the sodium ion exchanger, and the other is pumped to the salt circulation outlet 25. The lower part of the brine tank 3 also has a brine vent outlet 32 ​​and a maintenance manhole 33. The salt vent outlet 26 and the brine vent outlet 32 ​​are used to drain the liquid from the tank during maintenance or cleaning, and are each equipped with a drain valve. The viewing and opening mechanism of the drain valves should ensure that the draining operation can be completed within a set time.

[0034] In practice, the corresponding structural setup of the brine station also includes:

[0035] The volume of brine tank 3 is set to meet the demand for regenerated brine for sodium ion exchanger regeneration within the set cycle of the cigarette factory.

[0036] The top of the salt dissolving tank 2 is closed except for the salt dissolving inlet 21. The salt dissolving inlet 21 on the top of the tank is connected to the salt outlet 13 at the bottom of the side wall of the salt tank 1, and its upper edge is located on one side of the salt outlet 13 and close to the bottom edge of the salt outlet 13.

[0037] The top of the salt dissolving tank 2 is provided with a guide trough 22, which is a vertically penetrating, right-angled trapezoidal cubic cavity shell. The large end is adapted to be connected to the lower end of the salt dissolving inlet 21 and is inclined to one side of the salt outlet 13.

[0038] The salt overflow outlet 24 is at the same height as the brine overflow outlet 31 to prevent water from overflowing from the salt dissolving tank 2 and the brine tank 3, ensuring the safe operation of the equipment. Its size and overflow drainage capacity are designed according to the maximum water storage capacity and inflow rate of the salt dissolving tank 2 and the brine tank 3.

[0039] The slope of the salt pile 12 has an inclination angle greater than that of industrial salt. The top of the slope is located below the salt inlet 11 of the salt warehouse 1, and the bottom of the slope leads to the salt outlet 13 of the salt warehouse 1.

[0040] The salt bath 2 has a salt inlet 23 connected to a softened water supply pipe 27. The inlet of the softened water supply pipe 27 receives softened water from the outlet pipe 5 of the sodium ion exchanger. The pipe has a bypass, and ball valves are installed on both the bypass and the main pipe. The outlets converge and connect to the salt inlet 23. An electric valve is installed on the main pipe. For timely and accurate water replenishment, the salt bath 2 is equipped with a level gauge.

[0041] The brine tank 3 outputs brine through two regenerated brine delivery pipes 35 equipped with delivery pumps 36 connected to the brine outlet 34 at the bottom of the tank. One pipe is pumped to the backwash inlet of the sodium ion exchanger for efficient regeneration of the sodium ion exchanger, and the other pipe is pumped to the salt circulation port 25 for brine reflux, thereby promoting uniform mixing of brine, avoiding problems such as salt precipitation and concentration stratification, and ensuring stable concentration of regenerated brine. The two regenerated brine delivery pipes 35 are connected in parallel, one for use and one for backup. The input ends converge to the brine outlet 34 of the brine tank 3 and are equipped with ball valves and Y-type filters. Ball valves are installed upstream and downstream of the delivery pump 36.

[0042] Furthermore, a branch line 51 with a ball valve, check valve, and electric ball valve is led out from the outlet pipe 5 of the sodium ion exchanger. This branch line is connected to the output end of a regeneration brine delivery pipe 35 used for pumping to the backwash inlet of the sodium ion exchanger. The regeneration brine delivery pipe 35 forms several branches from the output end, and each branch can be connected to the backwash port of multiple sodium ion exchangers, so as to simultaneously supply regeneration brine to the backwash ports of multiple sodium ion exchangers and improve the regeneration efficiency of the sodium ion exchanger.

[0043] If the on-site equipment layout requires the regenerated brine delivery pipe 35 to pass through the salt dissolving tank 2, the pipe body must be made of corrosion-resistant material, and a water-stop ring must be installed at the junction with the tank body.

[0044] The brine station designed in this embodiment is intended to supply a stable concentration of regenerated brine to the sodium ion exchanger, ensuring the regeneration effect of the sodium ion exchanger, avoiding impact on the softened water branch, and thus ensuring the smooth operation of the cigarette factory's production. At the same time, it greatly reduces reliance on manual labor. Its principle and process are as follows:

[0045] Industrial salt is fed into the salt bin 1 by the bucket elevator 15 and piled up on the salt pile slope 12. When the gate 14 of the salt outlet 13 is opened, the industrial salt slides down by its own weight and is discharged through the salt outlet 13. It enters the guide trough 22 from the salt dissolving inlet 21 and finally falls into the salt dissolving pool 2.

[0046] The ball valve of the main pipeline of the softened water supply pipe 27 is opened, and softened water from the sodium ion exchanger is added to the salt dissolving tank 2. The industrial salt dissolves in the softened water to form a regenerated salt solution, which enters the brine tank 3 after being filtered through each drain cap 4.

[0047] When used for backwashing, the delivery pump 36 of one regenerated brine delivery pipe 35, which is used to pump the regenerated brine to the backwash inlet of the sodium ion exchanger, is started, and the regenerated brine in the brine tank 3 is pumped to the backwash port of each sodium ion exchanger.

[0048] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A brine station for use with a sodium ion exchanger regenerator at a cigarette factory, characterized in that include: Located in the upper layer of the salt bin; industrial salt is fed into the bin through the salt inlet on the top of the bin via a bucket elevator, and accumulates on the salt-piling slope formed at the bottom of the bin. It can slide down the salt-piling slope by its own weight to the salt outlet with a gate at the bottom of the bin, and is discharged through the salt outlet when the gate is opened. Located on the lower level, there are adjacent salt dissolving tanks and brine tanks. The lower parts of the salt dissolving tanks and brine tanks are connected by several drainage caps. The inlet end of the drainage cap is connected to the salt dissolving tank, and the outlet end is connected to the brine tank. The salt dissolving tank receives industrial salt discharged from the salt outlet of the salt tank through the salt dissolving inlet at the top of the tank and receives softened water from the sodium ion exchanger through the salt dissolving water inlet at the top of the tank. The salt solution in the tank flows into the brine tank through the drainage caps. The upper part of the tank is also equipped with a salt dissolving overflow outlet and a salt dissolving circulation outlet. The brine tank is equipped with a salt solution overflow outlet at the top of the tank. The salt solution is output through two regeneration salt solution delivery pipes equipped with delivery pumps connected to the salt solution outlet at the bottom of the tank. One pipe is pumped to the backwash inlet of the sodium ion exchanger, and the other pipe is pumped to the salt dissolving circulation outlet.

2. The salt brine plant for regenerating a sodium ion exchanger of a cooperating cigarette factory as claimed in claim 1, characterized in that: The salt inlet at the top of the salt dissolving tank is located below the salt outlet at the bottom of the side wall of the salt tank, with its upper edge positioned next to the bottom edge of the salt outlet.

3. The salt brine station for regenerating a sodium ion exchanger of a cooperating cigarette factory according to claim 1 or 2, characterized in that: The top of the salt dissolving tank is equipped with a guide trough, which is a vertically penetrating, right-angled trapezoidal cubic cavity shell. The large end is adapted to be connected to the lower end of the salt dissolving inlet and is inclined towards the side of the salt outlet.

4. The salt solution plant for regenerating a sodium ion exchanger of a cooperating cigarette factory as claimed in claim 1, characterized in that: The dissolved salt overflow port is at the same height as the salt solution overflow port.

5. The salt brine plant for regenerating a sodium ion exchanger of a cooperating cigarette factory as claimed in claim 1, characterized in that: The two regenerated brine delivery pipes output brine in parallel, and their input ends converge to connect with the brine outlet of the brine tank.

6. The salt solution plant for regenerating a sodium ion exchanger of a cooperating cigarette factory as claimed in claim 1, characterized in that: The angle of inclination of the salt pile slope is greater than the angle of accumulation of industrial salt.

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