Efficient centrifugal screening machine

Abstract

The efficient centrifugal screening machine comprises an upper cover and a lower shell, the lower portion of the lower shell is connected with a stock bin in a sealed mode, the left side wall of the lower shell is connected with a large material opening, and the upper cover and the lower shell are connected in a sealed mode to form a centrifugal cavity. The driving device is connected to the top of the upper cover, the output end of the driving device is connected with a rotor shaft, the rotor shaft is arranged in the centrifugal chamber, and the umbrella-shaped screen is arranged on the rotor shaft in a sleeving manner; the first locking device is arranged at the lower end of the rotor shaft, the second locking device is arranged at the upper end of the driving device, the first locking device is located in the centrifugal chamber, and the second locking device is located at the upper part of the driving device. According to the efficient centrifugal screening machine, dust raising is effectively prevented through the full-sealing design, vibration is avoided during working, noise is avoided during operation, the operation environment can be improved, impact force on the screen is small through spiral screening, and the service life of the screen can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of particle material screening, and more specifically, to a high-efficiency centrifugal screening machine. Background Art

[0002] In the process of refined production, raw materials and products are often screened and graded. At present, the screening equipment mainly includes vibrating screen and drum screen. The vibrating screen will produce noise and damage the structure due to the large excitation vibration during operation. The drum screen will occupy a large space due to its large size, and it is difficult to seal and cause environmental pollution. Therefore, how to effectively solve noise pollution, dust pollution and avoid structural damage to extend the service life of the screening machine has become an urgent problem to be solved in this field. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the problems existing in the prior art, the utility model provides a high-efficiency centrifugal screening machine to solve the problem mentioned in the background technology that the vibrating screen will generate noise and damage the structure due to large excitation vibration during operation. It also solves the technical problem that the drum screen is bulky, occupies a large space, is difficult to seal, and causes environmental pollution.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency centrifugal screening machine, comprising an upper cover and a lower shell, the lower part of the lower shell is sealed and connected to the material bin, the left side wall of the lower shell is connected to the large material port, and the upper cover and the lower shell are sealed and connected to form a centrifugal chamber; it also includes a driving device connected to the top of the upper cover, the output end of the driving device is connected to the rotor shaft, the rotor shaft is arranged in the centrifugal chamber, and an umbrella-shaped screen is sleeved on the rotor shaft; it also includes a first locking device arranged at the lower end of the rotor shaft and a second locking device arranged at the upper end of the driving device, the first locking device is located inside the centrifugal chamber, and the second locking device is located on the upper part of the driving device.

[0007] The utility model is further configured that a feeding port is also provided on the upper cover, an output end of the feeding port is connected to the centrifugal chamber, and the feeding port is used to add finished material into the centrifugal chamber.

[0008] The utility model is further configured that a feed port is also provided on the upper cover, an iron removal distributor is provided at the feed port, and the iron removal distributor is arranged inside the centrifugal chamber for uniform screening and iron removal.

[0009] The utility model is further configured such that the first locking device and the second locking device are configured as nuts, so as to facilitate the limiting and fixing of the driving device, the rotor shaft and the umbrella-shaped screen.

[0010] The utility model is further configured such that the inlet of the large material port is connected to the left side wall of the lower shell body and is arranged on the upper part of the umbrella-shaped screen, and the outlet of the large material port is sealed and connected to the first external device, so as to facilitate the storage of materials larger than the screen holes.

[0011] The utility model is further configured that the driving device is configured as a motor, which can provide sufficient power for the rotation of the rotor shaft.

[0012] The utility model is further configured such that the bottom of the rotor shaft does not contact the bottom of the lower shell body, so that the rotation of the rotor shaft is convenient and there is no dead corner for cleaning.

[0013] The utility model is further configured such that a gap is provided between the umbrella-shaped screen and the side wall of the lower shell body, so as to facilitate the rotation of the umbrella-shaped screen.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a high-efficiency centrifugal screening machine, which has the following beneficial effects:

[0016] 1. After the finished product flows out from the first external device and enters the feeding port, the driving device drives the rotor shaft to rotate, and at the same time drives the umbrella-shaped screen to rotate, and the material is screened under the action of gravity. The material larger than the screen hole will be thrown to the outer diameter of the screen under the action of centrifugal force and flow out from the large material port. The material under the screen will fall directly onto the lower screen and finally fall into the silo, thereby solving the problem of noise and structural damage caused by vibration when screening by vibration technology in the prior art, and extending the service life of the screen.

[0017] 2. Fully sealed connections are adopted between the finished product tank and the feeding port, between the upper cover and the lower shell, and between the lower shell and the silo, which effectively prevents dust and solves the problem that the drum screen in the prior art is large in size, occupies a large production space, and is difficult to seal, which can cause environmental pollution.

[0018] 3. By setting up an iron removal distributor, the material screening can be made more uniform; and it has the function of iron removal, which can protect the transmission device and transportation device; the screening is carried out by rotating the screen, which has little impact on the screen and can extend the service life of the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional view of a high-efficiency centrifugal screening machine in the utility model.

[0020] In the figure: 1. driving device; 2. feeding port; 3. rotor shaft; 4. upper cover; 5. umbrella-shaped screen; 6. lower shell; 7. large material port; 8. iron removal distributor; 9. first locking device; 10. second locking device. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0023] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0024] See also Figure 1 A high-efficiency centrifugal screening machine includes an upper cover 4 and a lower shell 6 sealed and connected to the upper cover 4. The upper cover 4 and the lower shell 6 form a centrifugal chamber. The upper cover 4 is provided with a feeding port 2 for feeding into the centrifugal chamber. The upper cover 4 is also provided with a feeding port for feeding raw materials into the centrifugal chamber. An iron removal distributor 8 is provided at the feeding port. The iron removal distributor 8 can make the screening more uniform and can remove iron from the material; it also includes a driving device 1 connected to the top of the upper cover 4. The driving device 1 can provide power for the rotation of the umbrella-shaped screen 5. The output end of the driving device 1 is connected to the rotor shaft 3. The rotor shaft 3 is arranged in the centrifugal chamber. The rotor shaft 3 is connected to the umbrella-shaped screen 5. A rotor shaft 3 connected to the lower end of the rotor shaft 3 is provided below the umbrella-shaped screen 5. A first locking device 9 is connected, and the first locking device 9 is located in the centrifugal chamber to fix and limit the umbrella-shaped screen 5. A second locking device 10 connected to the upper end of the rotor shaft 3 is arranged on the upper part of the driving device 1 to limit the rotor shaft 3; it also includes a large material port 7 connected to the side wall of the lower shell 6, and the inlet of the large material port 7 is arranged on the upper part of the umbrella-shaped screen 5 to prevent materials smaller than the sieve hole from entering the large material port 7, and a silo is connected to the lower part of the lower shell 6; the output end of the feeding port 2 is connected to the centrifugal chamber, and the input end is connected to the second external device; the feeding port 2 and the second external device, the upper cover 4 and the lower shell 6, the lower shell 6 and the silo, and the large material port and the first external device are strictly sealed to prevent dust.

[0025] In this embodiment, a feeding port 2 is provided on the upper cover 4, and the output end of the feeding port 2 is connected to the centrifugal chamber. The finished material enters the centrifugal chamber from the feeding port 2, and the driving device 1 drives the rotor shaft 3 to rotate, and at the same time drives the umbrella-shaped screen 5 to rotate, and the material is screened under the action of gravity. The material larger than the screen hole will be thrown to the outer diameter of the screen under the action of centrifugal force and flow out from the large material port 7. The screened material will directly fall onto the lower screen until it falls into the inside of the silo. Through spiral screening, the impact of the material on the screen is small, which can extend the service life of the screen.

[0026] A feed port is also provided on the upper cover 4, and an output end of the feed port is connected to the centrifugal chamber. An iron removal distributor 8 is provided at the output end of the feed port, and the iron removal distributor 8 is arranged inside the centrifugal chamber. The original material enters the centrifugal chamber from the feed port. After being filtered by the iron removal distributor 8, the material becomes more uniform and the iron substances in the material can be filtered out, effectively preventing the iron substances from damaging the power device and the transmission device. After entering the centrifugal chamber, the driving device 1 drives the rotor shaft 3 to rotate, and at the same time drives the umbrella-shaped screen 5 to rotate, and the material is screened under the action of gravity. The material larger than the screen hole will be thrown to the outer diameter of the screen under the action of centrifugal force and flow out from the large material port 7, and the screened material will directly fall to the lower screen until it falls into the inside of the silo.

[0027] The inlet of the large material port 7 is connected to the left side wall of the lower shell body 6 and is arranged on the upper part of the umbrella-shaped screen 5. The outlet of the large material port 7 is sealed and connected to the first external device. Materials larger than the screen holes will be thrown to the outer diameter of the screen under the action of centrifugal force and flow into the large material port 7 from the inlet of the large material port 7, and then flow into the first external device from the outlet of the large material port 7 for storage, which is convenient for the screening, transportation and storage of large particle materials.

[0028] In order to fix and limit the driving device 1, the rotor shaft 3, and the umbrella-shaped screen 5, the output end of the driving device 1 is connected to the rotor shaft 3, the rotor shaft 3 is arranged in the centrifugal chamber, and the lower end of the rotor shaft 3 is provided with a first locking device 9, which is located inside the centrifugal chamber; the upper end of the rotor shaft 3 is provided with a second locking device 10, which is located on the upper part of the driving device 1, and the locking device is set as a nut. By lengthening the rotor shaft 3, multiple layers of umbrella-shaped screens 5 can be sleeved. By setting multiple locking devices, multiple umbrella-shaped screens 5 can be limited. The setting of multiple layers of umbrella-shaped screens 5 can realize multi-stage material separation.

[0029] In order to provide sufficient power for the rotation of the umbrella-shaped screen 5, the driving device 1 is configured as a motor, which drives the rotor shaft 3 to rotate and drives the umbrella-shaped screen 5 to rotate at the same time.

[0030] In order to reduce the friction of the rotor shaft 3 and avoid cleaning dead corners, the bottom of the rotor shaft 3 does not contact the bottom of the lower shell 6. In order for the umbrella-shaped screen 5 to rotate smoothly, there is a gap between the umbrella-shaped screen 5 and the side wall of the lower shell 6, and the gap is small. On the one hand, it can reduce the resistance caused by friction, and on the other hand, it can prevent large particles from falling.

[0031] In summary, when the overall equipment is in use:

[0032] The material that needs to be deironed and evenly screened enters from the feed port, passes through the deironing distributor 8 and enters the centrifugal chamber, and the finished material enters the centrifugal chamber from the feed port 2. After the material enters the centrifugal chamber, the driving device 1 drives the rotor shaft 3 to rotate, and at the same time drives the umbrella-shaped screen 5 to rotate, and the material is screened under the action of gravity. The material larger than the screen hole will be thrown to the outer diameter of the screen under the action of centrifugal force and flow out from the large material port 7 and flow into the first external equipment. The screened material will fall directly onto the lower screen until it falls into the silo. The entire transportation process is in a closed environment, which can effectively prevent the occurrence of dust.

[0033] By extending the rotor shaft 3, arranging multiple layers of umbrella-shaped screens 5, and fixing the umbrella-shaped screens 5 by multiple locking devices, multi-stage screening of materials can be achieved.

[0034] In order to further prevent dust, a feed port cover is provided at the feed port. The feed port cover is opened when materials need to be added, and is covered when not in use.

[0035] There is no vibration and noise during operation, which can greatly improve the working environment. The spiral screening of the screen has little impact on the screen, which can extend the service life of the screen.

[0036] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is determined by the attached claims and their equivalents.

Claims

1. A high-efficiency centrifugal screening machine, characterized in that: include: Upper cover (4); A lower shell (6) is sealed and connected to the upper cover (4), and a centrifugal chamber is formed between the upper cover (4) and the lower shell (6) A driving device (1) arranged on the top of the upper cover (4); a rotor shaft (3) connected to an output end of the driving device (1), the rotor shaft (3) being arranged in the centrifugal chamber; The lower end of the rotor shaft (3) is provided with a first locking device (9), which is located inside the centrifugal chamber; The upper end of the rotor shaft (3) is provided with a second locking device (10), which is located on the upper part of the driving device (1); An umbrella-shaped screen (5) sleeved on the rotor shaft (3); The lower part of the lower shell (6) is sealed and connected to the material bin.

2. The high-efficiency centrifugal screening machine according to claim 1, characterized in that: The upper cover (4) is also provided with a feeding port (2), and the output end of the feeding port (2) is connected to the centrifugal chamber.

3. The high-efficiency centrifugal screening machine according to claim 2, characterized in that: The upper cover (4) is also provided with a feed inlet, and an iron removal distributor (8) is provided at the feed inlet. The iron removal distributor (8) is arranged inside the centrifugal chamber.

4. The high-efficiency centrifugal screening machine according to claim 1, characterized in that: The first locking device (9) and the second locking device (10) are configured as nuts.

5. The high-efficiency centrifugal screening machine according to claim 1, characterized in that: It also includes a large material port (7), the inlet of which is connected to the left side wall of the lower shell (6) and is arranged on the upper part of the umbrella-shaped screen (5), and the outlet of which is sealed and connected to the first external device.

6. The high-efficiency centrifugal screening machine according to claim 1, characterized in that: The driving device (1) is configured as a motor.

7. The high-efficiency centrifugal screening machine according to claim 1, characterized in that: The bottom of the rotor shaft (3) does not contact the bottom of the lower housing (6).

8. The high-efficiency centrifugal screening machine according to claim 5, characterized in that: There is a gap between the umbrella-shaped screen (5) and the side wall of the lower shell (6).

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