Metering device for sodium bicarbonate filter aid

Abstract

The utility model relates to the field of metering devices, and discloses a metering device for a sodium bicarbonate filter aid, which is characterized in that the top of a metering cylinder is communicated with a feed pipe, the top of the feed pipe is communicated with a raw material cylinder, the bottom of the metering cylinder is communicated with a discharge pipe, and the outer wall of the metering cylinder is provided with scale marks. A plugging assembly for plugging the filter aid in the raw material cylinder is arranged in the feeding pipe, a driving assembly for driving the device to operate is arranged outside the metering cylinder, and a driving assembly for driving the device to operate is arranged outside the metering cylinder; a filter aid is injected into the raw material cylinder, and when the filter aid needs to be added, the filter aid can be effectively controlled to enter the metering cylinder from the raw material cylinder by utilizing the plugging assembly, so that the filter aid is prevented from flowing in randomly, and the metering accuracy and stability are ensured; by accurately metering the injection amount of the filter aid, the sodium bicarbonate particles can be more easily gathered to form larger particles, and the resistance of a filter cake is reduced, so that the filtering speed and efficiency are improved, and the economic benefits of enterprises are further improved.

Description

Technical Field

[0001] The utility model relates to the field of metering devices, in particular to a metering device for a heavy alkali filter aid. Background Art

[0002] Heavy alkali filter aid is a chemical additive used in the production of heavy alkali (sodium bicarbonate, also known as sodium bicarbonate). It is primarily used to improve the filtration performance of heavy alkali. Filtration is a key step in heavy alkali production, with the goal of separating sodium bicarbonate crystals from the mother liquor. However, due to the small size and high viscosity of heavy alkali particles, the filtration process can be difficult, resulting in slow filtration and low efficiency. The addition of heavy alkali filter aid can change the surface properties of heavy alkali particles, making them more likely to aggregate into larger particles, reducing the resistance of the filter cake, and thus improving filtration speed and efficiency.

[0003] If too much heavy alkali filter aid is injected, a series of adverse consequences will occur; too much filter aid may cause the heavy alkali product to be contaminated, affecting product quality; the filter aid may remain in the heavy alkali, changing the chemical and physical properties of the heavy alkali, making it not meet production standards; excessive filter aid will increase production costs and cause waste of resources; and if the amount of heavy alkali filter aid injected is too little, the filter aid cannot fully play its role; in heavy alkali production, filtration is a key link, the purpose of which is to separate sodium bicarbonate crystals from the mother liquor; insufficient addition of filter aid will make it difficult for heavy alkali particles to aggregate to form larger particles, the filter cake resistance will increase, the filtration speed will slow down, and the efficiency will decrease; affecting the economic benefits of the enterprise, for this reason we proposed a metering device for heavy alkali filter aid. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the utility model provides a metering device for a heavy alkali filter aid, which solves the problems that if too much heavy alkali filter aid is injected, the excessive filter aid may cause the heavy alkali product to be contaminated, affecting the product quality; the filter aid may remain in the heavy alkali, changing the chemical and physical properties of the heavy alkali, making it non-compliant with production standards; excessive filter aid will increase production costs and cause waste of resources; and if too little heavy alkali filter aid is injected, the filter aid cannot fully play its role; in heavy alkali production, filtration is a key link, the purpose of which is to separate sodium bicarbonate crystals from mother liquor; insufficient addition of filter aid will make it difficult for heavy alkali particles to aggregate to form larger particles, increase filter cake resistance, slow down filtration speed, and reduce efficiency, thus affecting the economic benefits of the enterprise.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a metering device for heavy alkali filter aid, comprising a metering cylinder, the top of the metering cylinder is connected to a feed pipe, the top of the feed pipe is connected to a raw material cylinder, the bottom of the metering cylinder is connected to a discharge pipe, the outer wall of the metering cylinder is provided with scale lines, the inside of the feed pipe is provided with a blocking component for blocking the filter aid in the raw material cylinder, and the outside of the metering cylinder is provided with a driving component for driving the device to operate.

[0008] Preferably, the sealing assembly includes a first ring, a first through hole, a blocking ball, a first spring, a second ring, and a second through hole. The first ring is fixedly connected to the inner wall of the feed pipe, the first through hole is opened on the first ring, the second ring is fixedly connected to the inner wall of the feed pipe and is located at the bottom end of the first ring, the second through hole is opened on the second ring, the bottom of the blocking ball is in contact with the bottom of the first through hole, and the first spring is fixedly connected between the bottom of the blocking ball and the bottom of the second ring.

[0009] Preferably, a push plate is slidably connected to the inner wall of the metering cylinder.

[0010] Preferably, the driving assembly includes a motor, a gear disc, and a rack. The motor is fixedly connected to the outer wall, the gear disc is fixedly sleeved on the output end of the motor, the rack is fixedly connected to the side wall of the push plate, and the rack is meshed with the gear disc.

[0011] Preferably, the feed pipe is located in the middle of the metering cylinder, the inner wall of the metering cylinder is fixedly connected to a fixed block, the inner wall of the metering cylinder is slidably connected to a sealing plate, a second spring is fixedly connected between the sealing plate and the inner wall of the metering cylinder, and the side of the sealing plate away from the second spring is in contact with the side wall of the fixed block.

[0012] Preferably, the discharge pipe is located at the bottom end of the second spring.

[0013] Preferably, the bottom of the metering cylinder is fixedly connected to a support plate, the inner wall of the support plate is slidably connected to a slide plate, bolts are provided between the support plate and the slide plate, and a plurality of threaded holes are opened on the slide plate and the support plate.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the present invention provides a metering device for heavy alkali filter aid, which has the following beneficial effects:

[0016] 1. The metering device for heavy alkali filter aid comprises a metering cylinder, wherein the top of the metering cylinder is connected to a feed pipe, the top of the feed pipe is connected to a raw material cylinder, the bottom of the metering cylinder is connected to a discharge pipe, the outer wall of the metering cylinder is provided with scale lines, the feed pipe is provided with a blocking component for blocking the filter aid in the raw material cylinder, and the outside of the metering cylinder is provided with a driving component for driving the device to operate; the raw material cylinder is injected with filter aid, and when the filter aid needs to be added, the blocking component can effectively control the filter aid from the raw material cylinder into the metering cylinder, preventing the filter aid from flowing in arbitrarily, thereby ensuring the accuracy and stability of the metering; by accurately measuring the injection amount of the filter aid, the heavy alkali particles can be more easily aggregated to form larger particles, reducing the resistance of the filter cake, thereby improving the filtration speed and efficiency, and further improving the economic benefits of the enterprise.

[0017] 2. The metering device of the heavy alkali filter aid accurately controls the injection amount of the filter aid to avoid contamination of the heavy alkali product caused by excessive filter aid, ensures that the quality of the heavy alkali product meets the production standards, and reduces resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a side view of the structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the utility model;

[0022] Figure 5 for Figure 3 A local enlarged schematic diagram of point A in the figure.

[0023] In the figure: 1. metering cylinder; 2. feed pipe; 3. raw material cylinder; 4. slide plate; 5. support plate; 6. motor; 7. gear disc; 8. discharge pipe; 9. rack; 12. first ring; 11. push plate; 13. blocking ball; 14. first spring; 15. second ring; 16. second through hole; 18. second spring; 19. blocking plate; 20. fixing block; 212. scale line; 131. first through hole; 41. bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-5 The sieve of described filter presses on the sieve of being mixed with each other, and filter presses on the sieve of being mixed with each other, and filter press release 2 is arranged on the sieve of being mixed with each other, and filter press release 2 is arranged on the sieve of being mixed with each other, and filter press release 2 is arranged on the sieve of being mixed with each other.

[0026] The blocking assembly includes a first ring 12, a first through hole 131, a blocking ball 13, a first spring 14, a second ring 15, and a second through hole 16. The first ring 12 is fixedly connected to the inner wall of the feed pipe 2. The first through hole 131 is opened on the first ring 12. The second ring 15 is fixedly connected to the inner wall of the feed pipe 2 and is located at the bottom end of the first ring 12. The second through hole 16 is opened on the second ring 15. The bottom of the blocking ball 13 contacts the bottom of the first through hole 131. The first spring 14 is fixedly connected to the bottom of the blocking ball 13 and Between the bottom of the second ring 15; in the initial state, the blocking ball 13 in the blocking assembly contacts the bottom of the first through hole 131 on the first ring 12 under the action of the first spring 14, blocking the filter aid from the raw material barrel 3 in the feed pipe 2. When feeding is required, the driving assembly in the metering cylinder 1 generates a certain negative pressure, overcoming the elastic force of the first spring 14 to pull the blocking ball 13 open, and the filter aid can flow from the raw material barrel 3 into the metering cylinder 1 through the first through hole 131 and the second through hole 16 on the second ring 15 in sequence.

[0027] The inner wall of the metering cylinder 1 is slidably connected to a push plate 11; the driving assembly includes a motor 6, a gear disc 7, and a rack 9. The motor 6 is fixedly connected to the outer wall, the gear disc 7 is fixedly sleeved on the output end of the motor 6, the rack 9 is fixedly connected to the side wall of the push plate 11, and the rack 9 is meshed with the gear disc 7; the feed pipe 2 is located in the middle of the metering cylinder 1, the inner wall of the metering cylinder 1 is fixedly connected to a fixed block 20, the inner wall of the metering cylinder 1 is slidably connected to a blocking plate 19, a second spring 18 is fixedly connected between the blocking plate 19 and the inner wall of the metering cylinder 1, and the side of the blocking plate 19 away from the second spring 18 contacts the side wall of the fixed block 20; the discharge pipe 8 is located at the bottom end of the second spring 18; when the filter aid enters the metering cylinder 1, by observing the metering cylinder 1, the scale lines 212 on the outer wall can intuitively understand the amount of filter aid inside; the rotation of the motor 6 in the drive assembly drives the gear plate 7 to rotate, and the gear plate 7 engages with the rack 9, thereby driving the push plate 11 to slide on the inner wall of the metering cylinder 1, accurately controlling the feeding and discharging amounts of the filter aid. When the metering reaches the required amount, the sealing plate 19 will lose contact with the fixed block 20; under the push of the push plate 11, the filter aid will flow out from the gap between the sealing plate 19 and the discharge pipe 8, and finally be discharged from the discharge pipe 8 at the bottom of the metering cylinder 1; during the feeding and discharging process, the sealing plate 19 on the inner wall of the metering cylinder 1, under the action of the second spring 18, cooperates with the fixed block 20 to play an auxiliary role in controlling the flow of the filter aid.

[0028] A support plate 5 is fixedly connected to the bottom of the metering cylinder 1, and a slide plate 4 is slidably connected to the inner wall of the support plate 5. Bolts 41 are provided between the support plate 5 and the slide plate 4, and several threaded holes are provided on the slide plate 4 and the support plate 5; the position of the support plate 5 and the slide plate 4 at the bottom of the metering cylinder 1 can be adjusted by bolts 41 to adapt to different installation requirements and working environments, thereby increasing the flexibility of the device.

[0029] How it works

[0030] When the filter aid enters the metering cylinder 1, the amount of the filter aid inside can be intuitively understood by observing the scale line 212 on the outer wall of the metering cylinder 1; the rotation of the motor 6 in the drive assembly drives the gear disc 7 to rotate, and the gear disc 7 engages with the rack 9, thereby driving the push plate 11 to slide on the inner wall of the metering cylinder 1, accurately controlling the feeding and discharging amounts of the filter aid. When the metering reaches the required amount, the sealing plate 19 will lose contact with the fixed block 20; under the push of the push plate 11, the filter aid will flow out from the gap between the sealing plate 19 and the discharge pipe 8, and finally be discharged from the discharge pipe 8 at the bottom of the metering cylinder 1; during the feeding and discharging process, the sealing plate 19 on the inner wall of the metering cylinder 1 cooperates with the fixed block 20 under the action of the second spring 18 to play an auxiliary control role in the flow of the filter aid.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metering device for a heavy alkaline filter aid, comprising a metering cylinder (1), characterized in that: The top of the metering cylinder (1) is connected to a feed pipe (2), the top of the feed pipe (2) is connected to a raw material cylinder (3), the bottom of the metering cylinder (1) is connected to a discharge pipe (8), the outer wall of the metering cylinder (1) is provided with scale lines (212), the inside of the feed pipe (2) is provided with a blocking component for blocking the filter aid in the raw material cylinder (3), and the outside of the metering cylinder (1) is provided with a driving component for driving the device to operate.

2. The metering device for a heavy alkaline filter aid according to claim 1, characterized in that: The blocking assembly comprises a first circular ring (12), a first through hole (131), a blocking ball (13), a first spring (14), a second circular ring (15), and a second through hole (16); the first circular ring (12) is fixedly connected to the inner wall of the feed pipe (2); the first through hole (131) is provided on the first circular ring (12); the second circular ring (15) is fixedly connected to the inner wall of the feed pipe (2) and is located at the bottom end of the first circular ring (12); the second through hole (16) is provided on the second circular ring (15); the bottom of the blocking ball (13) contacts the bottom of the first through hole (131); and the first spring (14) is fixedly connected between the bottom of the blocking ball (13) and the bottom of the second circular ring (15).

3. The metering device for a heavy alkali filter aid according to claim 1, wherein: The inner wall of the metering cylinder (1) is slidably connected to a push plate (11).

4. The metering device for a heavy alkaline filter aid according to claim 1, wherein: The driving assembly comprises a motor (6), a toothed disc (7), and a rack (9); the motor (6) is fixedly connected to the outer wall; the toothed disc (7) is fixedly sleeved on the output end of the motor (6); the rack (9) is fixedly connected to the side wall of the push plate (11); and the rack (9) is meshed with the toothed disc (7).

5. The metering device for a heavy alkali filter aid according to claim 1, wherein: The feed pipe (2) is located in the middle of the metering cylinder (1), the inner wall of the metering cylinder (1) is fixedly connected to a fixed block (20), the inner wall of the metering cylinder (1) is slidably connected to a blocking plate (19), a second spring (18) is fixedly connected between the blocking plate (19) and the inner wall of the metering cylinder (1), and the side of the blocking plate (19) away from the second spring (18) contacts the side wall of the fixed block (20).

6. The metering device for a heavy alkaline filter aid according to claim 1, characterized in that: The discharge pipe (8) is located at the bottom end of the second spring (18).

7. The metering device for a heavy alkali filter aid according to claim 1, characterized in that: The bottom of the metering cylinder (1) is fixedly connected to a support plate (5), the inner wall of the support plate (5) is slidably connected to a slide plate (4), a bolt (41) is provided between the support plate (5) and the slide plate (4), and a plurality of threaded holes are provided on the slide plate (4) and the support plate (5).

Images