Combined grinding type rotor structure

Abstract

A combined grinding type rotor structure comprises a feeding barrel, a feeding hopper is arranged at the upper end of the feeding barrel, and a discharging pipe is arranged on the side face of the lower end of the feeding barrel. A primary stator, a secondary stator and a tertiary stator are sequentially arranged on the inner wall of the cylinder body from top to bottom, primary grinding teeth, secondary grinding teeth and tertiary grinding teeth are respectively arranged on the inner walls of the primary stator, the secondary stator and the tertiary stator, and tooth gaps and tooth shapes of the primary grinding teeth, the secondary grinding teeth and the tertiary grinding teeth are sequentially reduced; a driving motor is mounted at the bottom of the barrel, and a primary rotor, a secondary rotor and a tertiary rotor are sequentially mounted at the driving end of the driving motor from top to bottom through a driving shaft; and a pumping impeller is arranged below the third-stage rotor and is coaxially mounted on the outer surface of the driving shaft. According to the utility model, the defects in the prior art are overcome, the problems of large occupied area and high energy consumption of the traditional grinding equipment are solved, and meanwhile, the grinding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding equipment, in particular to a combined grinding rotor structure. Background Art

[0002] With the continuous innovation and technological breakthroughs in the domestic fine chemical industry, energy-saving and environmentally friendly equipment is in need of upgrades and iterations to achieve energy conservation and increased production. Coal-water slurry (CWS) is a low-pollution, high-efficiency, pipeline-transportable, oil-replacing coal-based fluid fuel derived through physical processing from approximately 65% ​​coal, 34% water, and 1% additives. It transforms traditional coal combustion methods and demonstrates significant environmental and energy-saving advantages. In recent years, the successful development of environmentally friendly CWS, utilizing waste-to-resource technology, has significantly enhanced its environmental benefits without increasing costs.

[0003] At present, the traditional water-coal slurry production equipment is a pin-type grinder, which crushes the material by rolling. It has problems such as large footprint and high energy consumption. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the utility model provides a combined grinding rotor structure, which overcomes the shortcomings of the existing technology, solves the problems of large floor space and high energy consumption of traditional grinding equipment, and improves grinding efficiency.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A combined grinding rotor structure includes a feed cylinder, a feed hopper is provided at the upper end of the feed cylinder, and a discharge pipe is provided on the side of the lower end of the feed cylinder; a primary stator, a secondary stator, and a tertiary stator are fixedly mounted on the inner wall of the cylinder from top to bottom, and the inner walls of the primary stator, the secondary stator, and the tertiary stator are respectively provided with primary grinding teeth, secondary grinding teeth, and tertiary grinding teeth, and the tooth clearance and tooth shape of the primary grinding teeth, the secondary grinding teeth, and the tertiary grinding teeth decrease in sequence;

[0007] A driving motor is installed at the bottom of the cylinder, and the driving end of the driving motor is connected to the driving shaft. The outer surface of the driving shaft is fixedly installed with a primary rotor, a secondary rotor and a tertiary rotor in sequence from top to bottom. The outer circumference of the primary rotor cooperates with the primary grinding teeth, the outer circumference of the secondary rotor cooperates with the secondary grinding teeth, and the outer circumference of the tertiary rotor cooperates with the tertiary grinding teeth; a pumping impeller is provided below the tertiary rotor and is coaxially mounted on the outer surface of the driving shaft.

[0008] Preferably, a plurality of impact blocks are centrally symmetrically arranged on the upper surface of the primary rotor.

[0009] Preferably, second grinding blocks and third grinding blocks are evenly installed on the outer edges of the secondary rotor and the tertiary rotor, respectively, and the second grinding blocks and the third grinding blocks are matched with the secondary grinding teeth and the tertiary grinding teeth, respectively.

[0010] Preferably, a separation sleeve is provided between the pumping impeller and the three-stage rotor, and the separation sleeve is sleeved on the outer surface of the drive shaft.

[0011] The utility model provides a combined grinding rotor structure. It has the following beneficial effects: a plurality of impact blocks are symmetrically arranged on the upper surface of the primary rotor. Therefore, during the rotation process, the impact blocks can be used to hammer and crush the larger coal blocks in the water-slurry coal, so that the relative volume of the water-slurry coal is more balanced, and then the primary grinding teeth of the primary rotor outer ring and the primary stator inner ring cooperate to perform preliminary crushing on the water-slurry coal. After that, the outer ring of the secondary rotor cooperates with the secondary grinding teeth of the secondary stator inner ring, and the outer ring of the tertiary rotor cooperates with the tertiary grinding teeth of the tertiary stator inner ring to achieve a step-by-step grinding effect. The water-slurry coal material can be ground and refined step by step, thereby ensuring the fineness of the final product and significantly reducing energy consumption. In order to achieve an efficient grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for describing the prior art.

[0013] Figure 1 A schematic structural diagram of the utility model;

[0014] Figure 2 A schematic diagram of the structure of the primary stator and primary rotor in the present utility model;

[0015] Figure 3 A schematic diagram of the structure of the secondary stator and the secondary rotor in the present utility model;

[0016] Figure 4 A schematic diagram of the structure of the three-stage stator and three-stage rotor in the utility model;

[0017] Description of the numbers in the figure:

[0018] 1. Feed barrel; 2. Feed hopper; 3. Discharge pipe; 4. Primary stator; 5. Secondary stator; 6. Tertiary stator; 7. Primary grinding teeth; 8. Secondary grinding teeth; 9. Tertiary grinding teeth; 11. Drive shaft; 12. Primary rotor; 13. Secondary rotor; 14. Tertiary rotor; 15. Pumping impeller; 16. Impact block; 17. Secondary grinding block; 18. Tertiary grinding block; 19. Separation sleeve. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0020] Example 1, as Figure 1-4 As shown, a combined grinding rotor structure includes a feed cylinder 1, a feed hopper 2 is provided at the upper end of the feed cylinder 1, and a discharge pipe 3 is provided on the side of the lower end of the feed cylinder 1; a primary stator 4, a secondary stator 5, and a tertiary stator 6 are fixedly installed on the inner wall of the cylinder 1 from top to bottom, and the inner walls of the primary stator 4, the secondary stator 5, and the tertiary stator 6 are respectively provided with primary grinding teeth 7, secondary grinding teeth 8, and tertiary grinding teeth 9, and the tooth clearance and tooth shape of the primary grinding teeth 7, the secondary grinding teeth 8, and the tertiary grinding teeth 9 decrease in sequence;

[0021] A drive motor is installed at the bottom of the cylinder 1. The driving end of the drive motor passes through the mechanical seal sleeve at the bottom of the cylinder 1 and is connected to the drive shaft 11. The outer surface of the drive shaft 11 is fixedly installed with a primary rotor 12, a secondary rotor 13 and a tertiary rotor 14 from top to bottom. The outer circumference of the primary rotor 12 cooperates with the primary grinding teeth 7, the outer circumference of the secondary rotor 13 cooperates with the secondary grinding teeth 8, and the outer circumference of the tertiary rotor 14 cooperates with the tertiary grinding teeth 9; a pumping impeller 15 is provided below the tertiary rotor 14, and the pumping impeller 15 is coaxially mounted on the outer surface of the drive shaft 11.

[0022] Working principle:

[0023] During use, the volume of water-slurry coal is relatively variable, ranging from about 5 cm in size to about 0.5 cm in size, and even finer coal slag. This range is extremely wide, so the initial grinding cannot be too fine, and crushing should be the main method. Therefore, in this embodiment, a plurality of impact blocks 16 can be centrally symmetrically arranged on the upper surface of the primary rotor 12. The driving end of the drive motor drives the drive shaft 11 to rotate, and then drives the primary rotor 12 to rotate. The impact blocks 16 can be used to hammer and crush the larger coal blocks in the water-slurry coal to make the relative volume of the water-slurry coal more balanced. The outer ring of the primary rotor 12 cooperates with the primary grinding teeth 7 on the inner ring of the primary stator 4 to perform preliminary crushing on the water-slurry coal. Then, the outer ring of the secondary rotor 13 cooperates with the secondary grinding teeth 8 on the inner ring of the secondary stator 5, and the outer ring of the tertiary rotor 14 cooperates with the tertiary grinding teeth 9 on the inner ring of the tertiary stator 6 to achieve a step-by-step grinding effect. In addition, in this embodiment, the tooth gaps and tooth shapes of the primary grinding teeth 7, the secondary grinding teeth 8, and the tertiary grinding teeth 9 decrease in sequence, so that the water-slurry coal material can be ground and refined step by step, thereby ensuring the fineness of the final product and significantly reducing energy consumption while achieving the same grinding effect, thereby achieving a high-efficiency grinding effect.

[0024] In Example 2, as a further preferred embodiment of Example 1, second grinding blocks 17 and third grinding blocks 18 are evenly mounted on the outer edges of the secondary rotor 13 and the tertiary rotor 14, respectively. The second grinding blocks 17 and the third grinding blocks 18 cooperate with the secondary grinding teeth 8 and the tertiary grinding teeth 9, respectively. The second grinding blocks 17 and the third grinding blocks 18 effectively improve the strength of the outer circumferences of the secondary and tertiary rotors 13 and 14, thereby effectively ensuring the grinding effect of the second grinding blocks 17 and the third grinding blocks 18 in cooperation with the secondary and tertiary rotors 13 and 14.

[0025] In the third embodiment, as a further preferred embodiment of the first embodiment, a spacer sleeve 19 is provided between the pumping impeller 15 and the three-stage rotor 14. The spacer sleeve 19 is sleeved on the outer surface of the drive shaft 11. The spacer sleeve 19 can separate and limit the pumping impeller 15 and the three-stage rotor 14, thereby ensuring that the pumping impeller 15 and the three-stage rotor 14 do not move relative to each other.

[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A combined grinding rotor structure, characterized in that: The invention comprises a feeding cylinder (1), wherein a feeding hopper (2) is provided at the upper end of the feeding cylinder (1), and a discharge pipe (3) is provided on the side surface of the lower end of the feeding cylinder (1); a primary stator (4), a secondary stator (5) and a tertiary stator (6) are fixedly mounted on the inner wall of the cylinder (1) from top to bottom, and the inner walls of the primary stator (4), the secondary stator (5) and the tertiary stator (6) are respectively provided with primary grinding teeth (7), secondary grinding teeth (8) and tertiary grinding teeth (9), and the tooth clearance and tooth shape of the primary grinding teeth (7), the secondary grinding teeth (8) and the tertiary grinding teeth (9) decrease in sequence; A driving motor is installed at the bottom of the cylinder (1), and the driving end of the driving motor is connected to the driving shaft (11) in a transmission manner. A primary rotor (12), a secondary rotor (13) and a tertiary rotor (14) are fixedly installed on the outer surface of the driving shaft (11) in sequence from top to bottom. The outer circumference of the primary rotor (12) cooperates with the primary grinding teeth (7), the outer circumference of the secondary rotor (13) cooperates with the secondary grinding teeth (8), and the outer circumference of the tertiary rotor (14) cooperates with the tertiary grinding teeth (9); a pumping impeller (15) is provided below the tertiary rotor (14), and the pumping impeller (15) is coaxially installed on the outer surface of the driving shaft (11).

2. The combined grinding rotor structure according to claim 1, characterized in that: A plurality of impact blocks (16) are centrally symmetrically arranged on the upper surface of the primary rotor (12).

3. The combined grinding rotor structure according to claim 1, characterized in that: The outer edges of the secondary rotor (13) and the tertiary rotor (14) are evenly mounted with a second grinding block (17) and a third grinding block (18), respectively. The second grinding block (17) and the third grinding block (18) are matched with the secondary grinding teeth (8) and the tertiary grinding teeth (9), respectively.

4. The combined grinding rotor structure according to claim 1, characterized in that: A separation sleeve (19) is provided between the pumping impeller (15) and the three-stage rotor (14), and the separation sleeve (19) is sleeved on the outer surface of the driving shaft (11).

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