Nano calcium carbonate dehydration filter-pressing equipment

Abstract

The utility model discloses nano calcium carbonate dehydration and filter-pressing equipment, which relates to the technical field of nano calcium carbonate dehydration and comprises a case, a filter-pressing belt mechanism is arranged in the case, and the filter-pressing belt mechanism is arranged in the case. The filter pressing belt mechanism comprises a guide roller, a driving roller, a discharging roller, a large pressing roller, a small pressing roller, an upper row of filter screen belts and a lower row of filter screen belts, the upper row of filter screen belts are wound on all the rollers, a water receiving tank is arranged below the upper layer of the upper row of filter screen belts, and a spraying device and a scrubbing device which are fixed in the case are arranged at the positions, corresponding to the water receiving tank, above the upper layer of the upper row of filter screen belts; and the outer side surfaces of the upper and lower rows of filter screen belts are respectively attached to the end parts of the upper scraping plate and the lower scraping plate at the positions of the upper and lower unloading rollers. Through the arrangement of the filter pressing belt mechanism, the spraying device, the scrubbing device and the scraping plate, the problems that the treatment amount is small, the production is discontinuous, filter cakes are inconvenient to automatically separate after dehydration is completed, and residual solids are left on filter cloth and are not easy to remove in a traditional dehydration mode are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of nano calcium carbonate dehydration, in particular to nano calcium carbonate dehydration filter press equipment. Background Art

[0002] The process for producing nano-calcium carbonate involves calcining the raw limestone into lime in a vertical kiln. The lime is then reduced to lime milk in a ash disintegrator. Deslagging produces refined lime milk, which is then fed into a carbonization kettle to carbonize the lime milk. After carbonization, the milk is dehydrated through a filter press to produce nano-calcium carbonate solids. Traditional dehydration methods process small volumes, are inefficient, and cannot deliver simultaneous dehydration. Production is discontinuous, requiring frequent startup and shutdown of supporting equipment. Furthermore, after dehydration, the filter cake is difficult to automatically separate, and residual solids remain on the filter cloth, making it difficult to remove, impacting the subsequent filtration. To address this issue, we offer a nano-calcium carbonate dehydration filter press. Utility Model Content

[0003] The utility model aims to provide a nano calcium carbonate dehydration filter press device, which solves the problems of small processing volume, discontinuous production, inconvenience in automatic separation of filter cakes after dehydration, and residual solids on the filter cloth that are difficult to remove.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a nano-calcium carbonate dehydration filter press device, comprising a chassis, wherein the top and bottom of the chassis are respectively provided with a feed inlet and a liquid outlet, a feed hopper is provided at the position of the top of the chassis corresponding to the feed inlet, a filter press belt mechanism is provided in the chassis, and the filter press belt mechanism includes a guide roller, a drive roller, a discharge roller, a large pressure roller, a small pressure roller and two rows of filter belts wound around the above-mentioned rollers, and the two rows of filter belts are distributed in a wave shape between the large pressure roller and the small pressure roller at the positions of the large pressure roller and the small pressure roller in the horizontal direction. The small pressure rollers are evenly distributed around the filter belt in the circumference of the large pressure roller. One end of the filter belt in the lower row extends to the feed port position and forms an angle with the filter belt in the upper row on one side of the feed port. A water receiving trough is provided below the upper layer of the filter belt in the upper row, and a spraying device and a brushing device fixed in the chassis are provided above the upper layer of the filter belt in the upper row at the corresponding water receiving trough. The outer side surfaces of the upper and lower rows of filter belts are respectively fitted with the upper scraper plate and the lower scraper plate end at the upper and lower unloading roller positions, and the scraper plate is fixed in the chassis.

[0005] Preferably, a splash-proof guide plate is provided at the discharge end of the feed inlet.

[0006] Preferably, the bottom of the water receiving trough is a sloped surface, and a drainage outlet is provided below the slope of the water receiving trough.

[0007] Preferably, the scraper plates are arranged obliquely upward and obliquely downward respectively.

[0008] Preferably, the spray device includes a water pipe, a diversion pipe and a spray head. The diversion pipe is connected to the water pipe and is distributed at longitudinal intervals along the filter belt. The spray head is connected to the diversion pipe and is distributed at transverse intervals along the filter belt on the diversion pipe.

[0009] Preferably, the scrubbing device includes scrubbing brushes distributed at intervals along the moving direction of the filter belt.

[0010] The utility model has the following beneficial effects:

[0011] 1. The large and small pressure rollers and filter belts cooperate to squeeze and dehydrate, which can dehydrate while feeding, with large processing capacity and high dehydration efficiency;

[0012] 2. It can realize fast discharging, and the scraper plate and discharge roller can realize the scraping and discharging of filter cakes of different thicknesses, with high adaptability;

[0013] 3. The filter belt can be cleaned so that the device can quickly carry out the next filtration, ensuring the filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a structural diagram of the filter press belt mechanism of the utility model.

[0016] In the figure: 1. Chassis; 11. Feed inlet; 12. Liquid outlet; 2. Feed hopper; 21. Splash-proof guide plate; 3. Filter press belt mechanism; 31. Guide roller; 32. Drive roller; 33. Discharge roller; 34. Large pressure roller; 35. Small pressure roller; 36. Filter belt; 4. Water receiving trough; 41. Drain outlet; 5. Spray device; 51. Water pipe; 52. Diverter pipe; 53. Spray head; 6. Brushing device; 7. Scraper. DETAILED DESCRIPTION

[0017] The following will be combined with the accompanying 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.

[0018] like Figure 1-2 As shown, the utility model provides a technical solution: a nano calcium carbonate dehydration filter press device, comprising a chassis 1, a feed inlet 11 and a liquid outlet 12 are respectively provided at the top and bottom of the chassis 1, a feed hopper 2 is provided at the position of the top of the chassis 1 corresponding to the feed inlet 11, and a filter press belt mechanism 3 is provided in the chassis 1;

[0019] The filter press belt mechanism 3 includes a guide roller 31, a drive roller 32, a discharge roller 33, a large pressure roller 34, a small pressure roller 35, and two upper and lower rows of filter belts 36 wound around the above rollers. The two rows of filter belts 36 are distributed in a wave shape horizontally between the large pressure roller 34 and the small pressure roller 35 and fit together. The small pressure roller 35 is evenly distributed around the filter belt 36 in the circumferential direction of the large pressure roller 34. One end of the lower filter belt 36 extends to the position of the feed inlet 11 and forms an angle with the upper filter belt 36 on the side of the feed inlet 11.

[0020] A water receiving trough 4 is provided below the upper layer of the upper filter belt 36. The bottom of the water receiving trough 4 is a sloped surface, and a drain outlet 41 is provided below the slope of the water receiving trough 4. A spray device 5 and a scrubbing device 6 fixed in the chassis 1 are provided above the upper layer of the upper filter belt 36 corresponding to the water receiving trough 4. The outer sides of the upper and lower rows of filter belts 36 are respectively fitted with the ends of the upper scraper plate 7 and the lower scraper plate 7 at the positions of the upper and lower unloading rollers 33. The scraper plates 7 are fixed in the chassis 1, and the scraper plates 7 are respectively arranged obliquely upward and obliquely downward;

[0021] Liquid baffles are provided on both sides of the upper layer of the lower filter belt 36 corresponding to the feed inlet 11. The feed inlet 11 is located in the middle of the lower filter belt 36 and the discharge spreads to the surrounding areas. A splash-proof guide plate 21 is provided at the discharge end of the feed inlet 11 to guide the liquid to the lower filter belt 36.

[0022] The spray device 5 includes a water pipe 51, a diverter pipe 52, and a spray head 53. The diverter pipe 52 is connected to the water pipe 51 and is spaced apart longitudinally along the filter belt 36. The spray head 53 is connected to the diverter pipe 52 and is spaced apart transversely along the filter belt 36 on the diverter pipe 52.

[0023] The scrubbing device 6 includes scrubbing brushes spaced apart along the moving direction of the filter belt 36;

[0024] The filter cake is discharged from the filter press mechanism 3 by the scraper 7 and the scraper 7 scrapes the filter cake out of the filter press mechanism 3. The scraper 7 scrapes the filter cake out of the filter press mechanism 3 by the scraper 7 and the scraper 7 scrapes the filter cake out of the filter press mechanism 3. The scraper 7 scrapes the filter cake out of the filter press mechanism 3 by the scraper 7 and the scraper 7 scrapes the filter cake out of the filter press mechanism 3. The scraper 7 scrapes the filter cake out of the filter press mechanism 3 by the scraper 7 and the scraper 7 scrapes the filter cake out of the filter press mechanism 3. The scraper 7 scrapes the filter cake out of the filter press mechanism 3 by the scraper 7 and the scraper 7 scrapes the filter cake out of the filter press mechanism 3. The scraper 7 scrapes the filter cake out of the filter press mechanism 3 by the scraper 7 and the scraper 7 scrapes the filter cake out of the filter press mechanism 3. The scraper 7 scrapes the filter cake out of the filter press mechanism 3 by the scraper 7 and the scraper 7 scrapes the filter cake out of the filter press mechanism 3

[0025] It should be noted that, in this document, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0026] 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 nano calcium carbonate dehydration filter press equipment, characterized by: The invention comprises a chassis (1), wherein the top and bottom of the chassis (1) are respectively provided with a feed port (11) and a liquid outlet (12); a feed hopper (2) is provided at a position of the top of the chassis (1) corresponding to the feed port (11); a filter press belt mechanism (3) is provided in the chassis (1); the filter press belt mechanism (3) comprises a guide roller (31), a drive roller (32), a discharge roller (33), a large pressure roller (34), a small pressure roller (35), and two upper and lower rows of filter belts (36) wound around the above rollers; and the two rows of filter belts (36) are horizontally distributed in a wave shape between the large pressure roller (34) and the small pressure roller (35) at the positions of the large pressure roller (34) and the small pressure roller (35) and are fitted together; the small pressure roller (35) is at The large pressure roller (34) is evenly distributed around the filter belt (36) in the circumferential direction. One end of the filter belt (36) in the lower row extends to the position of the feed inlet (11) and forms an angle with the filter belt (36) in the upper row on one side of the feed inlet (11). A water receiving trough (4) is provided below the upper layer of the filter belt (36) in the upper row, and a spray device (5) and a brushing device (6) fixed in the chassis (1) are provided above the upper layer of the filter belt (36) in the upper row corresponding to the water receiving trough (4). The outer side surfaces of the upper and lower filter belts (36) are respectively fitted with the ends of the upper scraper plate (7) and the lower scraper plate (7) at the positions of the upper and lower discharge rollers (33). The scraper plate (7) is fixed in the chassis (1).

2. A nano calcium carbonate dehydration filter press equipment according to claim 1, characterized in that: A splash-proof guide plate (21) is provided at the discharge end of the feed inlet (11).

3. A nano calcium carbonate dehydration filter press equipment according to claim 1, characterized in that: The bottom of the water receiving trough (4) is a sloped surface, and a drainage outlet (41) is provided below the slope of the water receiving trough (4).

4. A nano calcium carbonate dehydration filter press equipment according to claim 1, characterized in that: The scraper plates (7) are respectively arranged obliquely upward and obliquely downward.

5. The nano-calcium carbonate dehydration filter press equipment according to claim 1, characterized in that: The spraying device (5) comprises a water pipe (51), a diverter pipe (52) and a spray head (53); the diverter pipe (52) is connected to the water pipe (51), and the diverter pipe (52) is distributed at intervals along the longitudinal direction of the filter belt (36); the spray head (53) is connected to the diverter pipe (52), and the spray head (53) is distributed at intervals along the transverse direction of the filter belt (36) on the diverter pipe (52).

6. The nano-calcium carbonate dehydration filter press equipment according to claim 1, characterized in that: The scrubbing device (6) comprises scrubbing brushes distributed at intervals along the moving direction of the filter belt (36).

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