CN218610284U

CN218610284U - Screening device

Info

Publication number: CN218610284U
Application number: CN202223083581.9U
Authority: CN
Inventors: 邓亚玲; 田志强; 周铁梦; 梁少强; 何昀
Original assignee: Sichuan Jiuyuan Environmental Technology Co ltd
Current assignee: Sichuan Jiuyuan Environmental Technology Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-03-14
Anticipated expiration: 2032-11-21

Abstract

A screening device comprises a shell, wherein a screening mechanism is arranged in the shell, and a conveying mechanism is arranged in the screening mechanism; the screening mechanism comprises a pair of baffle rings arranged in the shell, a screening barrel is rotationally arranged in the baffle rings, one end of the screening barrel is provided with a driven chain wheel, the driven chain wheel is provided with a chain, the chain is provided with a driving chain wheel, the driving chain wheel is connected with a driving motor, the outer side end of the driving motor is provided with a driving seat, the driving seat is arranged on the shell, the inner side of the screening barrel is provided with an inner lining barrel, the screening barrel is provided with a plurality of screening holes, and the screening holes all penetrate through the inner lining barrel; the conveying mechanism is arranged in the inner lining cylinder and is provided with a pair of end rings, and the outer walls of the end rings are provided with a plurality of spiral plates. When screening, can avoid appearing the phenomenon of raise dust to avoid causing the pollution to the environment, and when screening, can carry out the discharge operation to the great powder of granularity, and then avoid long-term screening to cause the influence to the screening ability.

Description

Screening device

Technical Field

The utility model relates to a chromium sediment processing technology field especially relates to a screening plant.

Background

The chromium slag produced in industrial production contains a large amount of hexavalent chromium ions, so that the chromium slag has considerable toxicity and can cause environmental pollution if directly discharged. In order to avoid environmental pollution, the chromium slag is recycled at the same time, the chromium slag is usually subjected to detoxification operation, the currently adopted detoxification mode is that the chromium slag is subjected to reduction detoxification by adopting the strong reducibility of sulfuric acid, after detoxification is completed, the chromium slag needs to be cleaned, filter pressing is performed after cleaning, cleaning is performed again or even three times after filter pressing is completed, the acid content in the chromium slag can be reduced after multiple cleaning, then the chromium slag is dried, and after drying, grinding and screening are performed on the chromium slag to enable the chromium slag to reach a certain granularity, and then brick or cement production and the like are performed.

Wherein, at present when carrying out chromium sediment powder screening, what adopt mostly is the mode of vibrations screening, this kind of screening mode is at the in-process of screening, causes the raise dust easily to cause the influence to the environment, although this kind of screening mode can realize multistage screening simultaneously, the powder that makes the granularity great easily remains on the screening net easily, thereby leads to the reduction of screening efficiency, and still cause the jam in screening net screening hole easily at the screening in-process, and then cause the decline of screening ability.

SUMMERY OF THE UTILITY MODEL

The utility model provides a screening plant to solve above-mentioned prior art not enough, when screening, can avoid appearing the phenomenon of raise dust, thereby avoid causing the pollution to the environment, and when the screening, can discharge the operation to the great powder of granularity, and then avoid long-term screening to cause the influence to screening ability.

In order to realize the purpose of the utility model, the following technologies are adopted:

a screening device comprises a shell, wherein a screening mechanism is arranged in the shell, and a conveying mechanism is arranged in the screening mechanism;

the screening mechanism comprises a pair of baffle rings arranged in the shell, a screening barrel is rotationally arranged in the baffle rings, one end of the screening barrel is provided with a driven chain wheel, the driven chain wheel is provided with a chain, the chain is provided with a driving chain wheel, the driving chain wheel is connected with a driving motor, the outer side end of the driving motor is provided with a driving seat, the driving seat is arranged on the shell, the inner side of the screening barrel is provided with an inner lining barrel, the screening barrel is provided with a plurality of screening holes, and the screening holes all penetrate through the inner lining barrel;

the conveying mechanism is arranged in the inner lining cylinder and is provided with a pair of end rings, and the outer walls of the end rings are provided with a plurality of spiral plates.

Further, the shell includes the cylindric casing, the one end of cylindric casing is equipped with the discharge ring, the window has been seted up to the one end upside of cylindric casing, the chain is worn in the window, the end disc is installed to the other end of cylindric casing, the feed inlet has been seted up to the other end of cylindric casing, feed inlet department is equipped with fan-shaped feeding shell, a plurality of feeding breachs have been seted up to a screening section of thick bamboo and the one end of interior bushing, when feeding breach and fan-shaped feeding shell intercommunication, a feeding operation for the material, the discharge gate has been seted up to the downside of cylindric casing, discharge gate department downwardly extending ground is equipped with the downwardly extending frame, the one end of a screening section of thick bamboo is equipped with the feeding end dish, the feeding end dish is located the feeding breach end.

Furthermore, the inner side end of the fan-shaped feeding shell is provided with a plugging ring, the plugging ring is installed on the cylindrical shell through a connecting plate, the plugging ring is sleeved at one end of the screening cylinder, and the plugging ring is arranged at the end of the feeding notch.

Further, the both ends of a screening section of thick bamboo all are equipped with the runner ring, all are equipped with a plurality of gyro wheels on the runner ring, all are equipped with the connecting seat on the gyro wheel, and the outside end of connecting seat is equipped with solid fixed ring, and solid fixed ring installs in the inside both ends of cylindric casing.

Furthermore, the conveying mechanism comprises a conveying motor installed on the end disc, an output shaft of the conveying motor penetrates through the feeding end disc, inner discs are arranged on end rings, each inner disc is provided with a rotating shaft, one rotating shaft is connected to an output shaft of the conveying motor, a cross plate is arranged at the outer side end of the other rotating shaft, and the cross plate is installed on the discharging ring through a connecting column.

Further, the outer side end of the spiral plate is of a knife-edge structure.

The technical scheme has the advantages that:

compared with the prior art, the utility model, this device has adopted the screening mode of rotary type, is sieving through this kind of screening mode, conveniently discharges the great powder of granularity that sieves out to can grind the great powder of granularity once more through this kind of mode and smash, and when the screening, can avoid producing the raise dust, thereby avoid causing the pollution to the environment, have stronger practicality.

Drawings

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 shows a perspective view of a first embodiment.

Fig. 2 shows a perspective view of the second embodiment.

Fig. 3 shows a perspective view of the housing.

Fig. 4 shows a first three-dimensional structure of the sieving mechanism and the conveying mechanism.

Fig. 5 is a second perspective view of the sifting mechanism and the conveying mechanism.

Fig. 6 is a three-dimensional configuration diagram of the sieving mechanism and the conveying mechanism.

Detailed Description

As shown in fig. 1 to 6, a screening device includes a housing 1, a screening mechanism 2 is disposed in the housing 1, and a conveying mechanism 3 is disposed in the screening mechanism 2.

Screening mechanism 2 is including installing a pair of fender ring 20 in shell 1, keep off the ring 20 internal rotation and be equipped with screening section of thick bamboo 25, the one end of screening section of thick bamboo 25 is equipped with driven sprocket 27, be equipped with chain 28 on the driven sprocket 27, be equipped with drive sprocket 29 on the chain 28, drive sprocket 29 is connected with driving motor 291, driving seat 290 is installed to driving motor 291's the outside end, driving seat 290 is installed in shell 1, the inboard of screening section of thick bamboo 25 is equipped with interior lining section of thick bamboo, be equipped with on the screening section of thick bamboo 25 and seted up a plurality of screening holes, the screening hole all runs through in interior lining section of thick bamboo.

The shell 1 includes cylindric casing 10, the one end of cylindric casing 10 is equipped with ejection of compact ring 11, window 100 has been seted up to the one end upside of cylindric casing 10, window 100 is worn to chain 28, end plate 102 is installed to the other end of cylindric casing 10, feed inlet 103 has been seted up to the other end of cylindric casing 10, feed inlet 103 department is equipped with fan-shaped feeding shell 12, a plurality of feeding breachs 26 have been seted up with the one end of interior bushing to the screening section of thick bamboo 25, when feeding breach 26 and fan-shaped feeding shell 12 intercommunication, a material operation of throwing for the material, discharge gate 101 has been seted up to the downside of cylindric casing 10, discharge gate 101 department downwardly extending is equipped with lower frame 15, the one end of screening section of thick bamboo 25 is equipped with feeding end dish 31, feeding end dish 31 is located feeding breach 26 end. The inner side end of the fan-shaped feeding shell 12 is provided with a plugging ring 13, the plugging ring 13 is installed on the cylindrical shell 10 through a connecting plate 14, the plugging ring 13 is sleeved at one end of the screening cylinder 25, and the plugging ring 13 is arranged at the end of the feeding gap 26. Both ends of a screening section of thick bamboo 25 all are equipped with the end ring 24 of rotating, all are equipped with a plurality of gyro wheels 23 on the end ring 24 of rotating, all are equipped with connecting seat 22 on the gyro wheel 23, and the outside end of connecting seat 22 is equipped with solid fixed ring 21, and solid fixed ring 21 installs in the inside both ends of cylindric casing 10.

The conveying mechanism 3 is arranged in the inner lining cylinder, a pair of end rings 33 are arranged on the conveying mechanism, and a plurality of spiral plates 34 are arranged on the outer wall of each end ring 33. The conveying mechanism 3 comprises a conveying motor 30 mounted on an end disc 102, an output shaft of the conveying motor 30 penetrates through a feeding end disc 31, inner discs 32 are arranged on end rings 33, rotating shafts 35 are arranged on the inner discs 32, one rotating shaft 35 is connected to the output shaft of the conveying motor 30, a cross plate 36 is arranged at the outer end of the other rotating shaft 35, and the cross plate 36 is mounted on the discharging ring 11 through a connecting column 37. The outer ends of the spiral plates 34 are knife-edged.

When the sieving is performed, the powder is fed into the fan-shaped feeding shell 12 through a pipeline or a conveying belt or a feeder, and when one of the feeding notches 26 on the rotating sieving cylinder 25 is communicated with the fan-shaped feeding shell 12, the powder in the fan-shaped feeding shell 12 is enabled to enter the sieving cylinder 25 through the feeding notch 26. The powder entering the sieving cylinder 25 will move towards the end of the discharging ring 11 under the guiding of the rotating spiral plate 34, and in the movement, the powder with smaller particle size will enter the housing 1 through the sieving holes and finally be discharged through the discharging hole 101, while a part of the powder with larger particle size will be crushed by the action of the sieving cylinder 25 and the spiral plate 34 rotating in the opposite direction and be discharged through the discharging hole 101, and the other part of the powder which is not easy to be crushed will be discharged through the discharging ring 11.

Wherein, because the feeding mode of this embodiment is pulsed feeding, and then avoid having too much powder in screening section of thick bamboo 25 to cause the influence to screening effect and efficiency.

Wherein, the setting of shutoff ring 13 can avoid the powder to discharge from other feeding breach 26 to make the powder that is not sieved directly discharged, thereby improved the effect of sieving.

The sieving cylinder 25 and the spiral plate 34 are rotated in opposite directions during sieving, and the powder can be pulverized by the two, and the outer end of the spiral plate 34 is formed in a knife-edge structure to improve the pulverizing effect.

Wherein, the cylindrical shell 10 can avoid the dust emission during the screening process, thereby avoiding the environmental pollution.

In order to improve the wear resistance of the classifying cylinder 25, a lining cylinder is arranged therein and is made of hard alloy.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is obvious that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A screening device is characterized by comprising a shell (1), wherein a screening mechanism (2) is arranged in the shell (1), and a conveying mechanism (3) is arranged in the screening mechanism (2);

the screening mechanism (2) comprises a pair of baffle rings (20) arranged in the shell (1), a screening cylinder (25) is arranged in the baffle rings (20) in a rotating mode, a driven chain wheel (27) is arranged at one end of the screening cylinder (25), a chain (28) is arranged on the driven chain wheel (27), a driving chain wheel (29) is arranged on the chain (28), the driving chain wheel (29) is connected with a driving motor (291), a driving seat (290) is arranged at the outer side end of the driving motor (291), the driving seat (290) is arranged on the shell (1), an inner lining cylinder is arranged on the inner side of the screening cylinder (25), a plurality of screening holes are formed in the screening cylinder (25), and the screening holes penetrate through the inner lining cylinder;

the conveying mechanism (3) is arranged in the inner lining cylinder, a pair of end rings (33) are arranged on the conveying mechanism, and a plurality of spiral plates (34) are arranged on the outer wall of each end ring (33).

2. The screening device according to claim 1, wherein the outer shell (1) comprises a cylindrical shell (10), a discharging ring (11) is arranged at one end of the cylindrical shell (10), a window (100) is formed in the upper side of one end of the cylindrical shell (10), a chain (28) penetrates through the window (100), an end disc (102) is installed at the other end of the cylindrical shell (10), a feeding hole (103) is formed in the other end of the cylindrical shell (10), a fan-shaped feeding shell (12) is arranged at the feeding hole (103), a plurality of feeding notches (26) are formed in one ends of the screening cylinder (25) and the lining cylinder, when the feeding notches (26) are communicated with the fan-shaped feeding shell (12), the feeding operation of materials is performed, a discharging hole (101) is formed in the lower side of the cylindrical shell (10), a lower extending frame (15) is arranged at the discharging hole (101), a feeding end disc (31) is arranged at one end of the screening cylinder (25), and the feeding end disc (31) is located at the end of the feeding notch (26).

3. A screening device according to claim 2, characterised in that the inner end of the sector shaped feed housing (12) is provided with a blocking ring (13), the blocking ring (13) is mounted on the cylindrical housing (10) by means of a connecting plate (14), the blocking ring (13) is fitted over one end of the screening cartridge (25), and the blocking ring (13) is fitted over the end of the feed gap (26).

4. A screening device according to claim 2, wherein both ends of the screening cylinder (25) are provided with a rotating end ring (24), the rotating end ring (24) is provided with a plurality of rollers (23), each roller (23) is provided with a connecting seat (22), the outer side end of each connecting seat (22) is provided with a fixing ring (21), and the fixing rings (21) are arranged at both ends inside the cylindrical shell (10).

5. A screening device according to claim 2, characterised in that the conveyor means (3) comprise a conveyor motor (30) mounted on the end disc (102), the output shaft of the conveyor motor (30) passing through the feed end disc (31), the end rings (33) being provided with inner discs (32), the inner discs (32) being provided with respective rotation shafts (35), one of the rotation shafts (35) being connected to the output shaft of the conveyor motor (30), the outer end of the other rotation shaft (35) being provided with a cross-plate (36), the cross-plate (36) being mounted on the discharge ring (11) via a connection post (37).

6. A screening device according to claim 1, characterised in that the outer ends of the spiral plates (34) are knife-edged.