CN218078858U - Roller type sieving machine with sieve roller cleaning device - Google Patents

Abstract

The utility model discloses a roller type sieving machine with a sieving roller cleaning device, relating to the technical field of sieving machines; the device comprises a plurality of spiral screen rollers arranged on a frame at intervals with a plurality of smooth screen rollers, wherein an electric pressure roller is arranged above at least one smooth screen roller, and two sides of the electric pressure roller are hinged with a fixed frame arranged above the frame through connecting plates; the frame is provided with a hydraulic push rod below the connecting plate, and the telescopic end of the hydraulic push rod is abutted against an ejector block horizontally arranged on the connecting plate. Compared with the prior art, the utility model discloses can solve current roller-type screening machine and receive sieve roller structure and material characteristic to influence, can have sieve roller wearing and tearing serious, screening inefficiency and the serious problem of wasting of resources.

Description

Roller type screening machine with screen roller cleaning device

Technical Field

The utility model belongs to the technical field of the screening machine technique and specifically relates to a roller type screening machine with sieve roller cleaning device.

Background

The preparation process of the pellets is roughly divided into 5 procedures of material preparation, mixed grinding, pelletizing, preheating roasting, cooling and the like, and the pelletizing is always the core procedure of pellet preparation although the process types for producing the pellets are different, so the quality of pelletizing raw materials is an important factor influencing the quality of finished pellets. At present, the fine-grained materials for pelletizing have two prominent problems: the impurity content is high, the impurities comprise stones and iron blocks doped in the transportation, stacking and transferring processes, metal parts left after overhauling, massive concretion in returned materials and the like; secondly, agglomeration is easy to occur, fine materials are easy to agglomerate and agglomerate in the process of belt transportation, especially when passing through a screen roller, and the agglomeration effect is particularly prominent when the moisture of the raw materials is high.

The screening equipment that the pellet production line generally used in a matched manner at present is a roller type screening machine, the structure of the roller type screening machine is simple, the roller type screening machine comprises a bearing seat arranged on a rack, a plurality of smooth surface screen rollers and a speed reducer, the rack is obliquely arranged above the ground, and the plurality of smooth surface screen rollers are sequentially arranged on the rack through the bearing seat and are driven by the speed reducer to rotate so as to complete material screening work. Under the influence of the structure of the screen roller and the material characteristics, the roller type screening machine has the following problems in the screening process: (1) The sieve roller is seriously worn, the inclined angle of the roller type sieving machine is usually not large to ensure the sieving area and the sieving effect, granular impurities such as stones, metal and the like are easily accumulated between roller gaps, the abrasion between the impurities and the roller body is aggravated when the sieve roller rotates, and the service life of the sieve roller is shortened; (2) On one hand, the material flow is poor due to the fluctuation of the water content of the raw material, the sieve roller is easy to stick materials, powder is adhered to the roller surface to block the roller gap, so that the material passing rate is reduced, and the integral material loading amount is influenced; on the other hand, sundries on the screening rollers can block part of roller gaps due to unmanned cleaning, so that the effective screening area is reduced, and the screening efficiency is greatly reduced; (3) The resource waste is serious, on one hand, the screen rollers are cleaned manually, the workload is large, the labor intensity is high, and the higher labor cost is generated; on the other hand, when the material flow is large or agglomeration can cause poor screening effect, most raw materials can be discharged as impurities, and the raw materials are wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a roll-type screening machine with sieve roller cleaning device, it can solve current roll-type screening machine and receive sieve roller structure and material characteristic to influence, can have sieve roller wearing and tearing serious, screening inefficiency and the serious problem of wasting of resources.

In order to solve the above problem, the utility model discloses a technical scheme is: the roller type screening machine with the screen roller cleaning device comprises a plurality of spiral screen rollers arranged on a frame at intervals with a plurality of smooth screen rollers, wherein an electric nip roller is arranged above at least one smooth screen roller, and two sides of the electric nip roller are hinged with a fixed frame arranged above the frame through connecting plates; the frame is provided with a hydraulic push rod below the connecting plate, and the telescopic end of the hydraulic push rod is abutted against an ejector block horizontally arranged on the connecting plate.

In the above technical solution, a more specific technical solution may also be: the top of the telescopic end of the hydraulic push rod is arc-shaped.

Further, the spiral screen roller comprises a roller body and spiral blades arranged on the surface of the roller body, and the helix angle of each spiral blade is 45 degrees.

Furthermore, the smooth surface screen roller and the spiral screen roller are both installed on the rack through a bearing seat and are driven to rotate by a speed reducer.

Furthermore, the electric pressure roller is driven by a pressure roller motor to rotate.

Further, the frame is obliquely arranged above the ground through the support column, and an included angle between the frame and the horizontal plane is larger than 0 degree and smaller than or equal to 30 degrees.

Further, the one end of connecting plate with the center pin of electronic nip roll is connected, the other end through the axis of rotation with the mount is connected.

Furthermore, the hydraulic push rod is fixed on the rack through a push rod seat.

Since the technical scheme is used, compared with the prior art, the utility model following beneficial effect has:

the utility model discloses a set up spiral screen roller and plain noodles sieve roller interval in the frame, and set up electronic nip rolls above the plain noodles sieve roller, the fine material that makes the reunion obtains quick extrusion dispersion, and reduce the sieve roller roll surface and adhere powder and block up the roll gap, increase the material through-put rate, guarantee the screening effect, avoid the wasting of resources, and simultaneously, debris are removed along the sieve roller and are piled up to the side under the effect of spiral screen roller, make things convenient for the debris clearance, reduce the sieve roller wearing and tearing, extension equipment life, whole production process also need not to drop into a large amount of manpower and materials and clear up the sieve roller, the human cost is practiced thrift, and the work efficiency is improved, the continuation and the stability of smelting work have been ensured.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the spiral screen roller of FIG. 1;

FIG. 3 is a schematic structural view of the motorized nip roll of FIG. 1;

fig. 4 is a working state diagram of the electric nip roll of the present invention when being jacked up by sundries.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments:

example 1:

the roller type sieving machine with the screen roller cleaning device shown in fig. 1 to 4 comprises a plurality of spiral screen rollers 3 arranged on a frame 2 at intervals with a plurality of smooth screen rollers 1, wherein an electric nip roller 4 is arranged above one smooth screen roller 1, two sides of the electric nip roller 4 are hinged with a fixed frame 9 arranged above the frame 2 through a connecting plate 5, one end of the connecting plate 5 is connected with a central shaft of the electric nip roller 4, and the other end is connected with the fixed frame 9 through a rotating shaft 8; the frame 2 is equipped with hydraulic push rod 7 below connecting plate 5, and the flexible end of hydraulic push rod 7 and the kicking block 6 looks butt of level setting on connecting plate 5, and the top of the flexible end of hydraulic push rod 7 is the arc.

The spiral screen roller 3 comprises a roller body 3-1 and a spiral blade 3-2 arranged on the surface of the roller body 3-1, and the helix angle of the spiral blade 3-2 is 45 degrees.

The smooth screen roller 1 and the spiral screen roller 3 are both arranged on the frame 2 through bearing seats and are driven to rotate by a speed reducer; the electric nip roll 4 is driven to rotate by a nip roll motor 10.

The frame 2 is obliquely arranged above the ground through a support column, and an included angle alpha between the frame 2 and a horizontal plane is 15 degrees; the hydraulic push rod 7 is fixed on the frame 2 through a push rod seat.

Example 2:

an angle α between the chassis 2 and the horizontal plane is 20 degrees, and other features are the same as those in embodiment 1.

Example 3:

an angle α between the housing 2 and the horizontal plane is 30 degrees, and other features are the same as those in embodiment 1.

The utility model discloses at the during operation, the pellet making gets into roller-type screening machine with the particulate material from the operation equipment of way, the material is by eminence to low operation, plain noodles sieve roller 1 and spiral sieve roller 3 syntropy rotation, electronic nip roll 4 is opposite with the rotation direction of plain noodles sieve roller 1 and spiral sieve roller 3, when the particulate material of reunion passes through between electronic nip roll 4 and plain noodles sieve roller 1, because the cohesion of particulate material is very little, can break under the pressure effect of two roll bodys and decompose or be extruded into the lamellar thing, make the particulate material pass through the roll gap smoothly and get into next procedure, increase the throughput rate of particulate material; when the sundries of the types such as stones, iron blocks, metal parts or massive concretions pass through the device, the electric material pressing roller 4 can be jacked up by the sundries due to the fact that the hardness is high and the electric material pressing roller cannot be cracked and extruded by the two roller bodies, the device is protected from being damaged, and the electric material pressing roller 4 returns to the original position under the action of the gravity of the electric material pressing roller 4 after the sundries are removed. The spiral screen roller 3 can play a role of loosening fine materials, the laminar materials passing through the space between the electric material pressing roller 4 and the smooth screen roller 1 are split into fine materials under the pulling of the rotation transverse force of the spiral blade and the rolling longitudinal force of the roller body, the fine materials enter the next procedure from the roller gap, when the material flow is too large or the flowability is poor due to large raw material moisture, the rotation transverse force of the spiral blade can transversely push out the bottom materials, the effective screening area can be increased, and the material flowability can be effectively improved; meanwhile, sundries which are stopped on the surface of the screen roller and cannot be screened away move towards the side edge under the transverse acting force of the spiral screen roller 3 and are stacked, so that the sundries are convenient to clean, the abrasion of the screen roller is reduced, and the service life of equipment is prolonged.

The number and the position of the electric nip rolls 4 can be set according to actual production needs. The telescopic end of the hydraulic push rod 7 is propped against the lower surface of the ejector block 6, and the function of supporting and adjusting the initial distance between the electric material pressing roller 4 and the smooth screen roller 1 is achieved. When the electric material pressing roller 4 is jacked up by sundries, the electric material pressing roller 4 drives one end of the connecting plate 5 and the jacking block 6 to be lifted upwards, and the other end of the connecting plate 5 rotates around the rotating shaft; the top of the telescopic end of the hydraulic push rod 7 is arc-shaped, so that the top block 6 can be prevented from interfering when being lifted upwards. The helix angle of the helical blade is 45 degrees, which can achieve better extrusion cracking effect on the agglomerated materials.

Claims (8)

1. The utility model provides a roller type screening machine with sieve roller cleaning device which characterized in that: the device comprises a plurality of spiral screen rollers arranged on a frame at intervals with a plurality of smooth screen rollers, wherein an electric pressure roller is arranged above at least one smooth screen roller, and two sides of the electric pressure roller are hinged with a fixed frame arranged above the frame through connecting plates; the frame is provided with a hydraulic push rod below the connecting plate, and the telescopic end of the hydraulic push rod is abutted with a top block horizontally arranged on the connecting plate.

2. The roller screen machine with screen roller cleaning device according to claim 1, wherein: the top of the telescopic end of the hydraulic push rod is arc-shaped.

3. The roller screen machine with screen roller cleaning device according to claim 1 or 2, wherein: the spiral screen roller comprises a roller body and spiral blades arranged on the surface of the roller body, and the helix angle of each spiral blade is 45 degrees.

4. Roller screening machine with screen roller cleaning device according to claim 3, characterized in that: the smooth surface screen roller and the spiral screen roller are both installed on the rack through bearing seats and are driven to rotate by a speed reducer.

5. Roller screening machine with screen roller cleaning device according to claim 4, characterized in that: the electric material pressing roller is driven to rotate by a material pressing roller motor.

6. Roller screening machine with screen roller cleaning device according to claim 5, characterized in that: the frame passes through the support column and puts subaerial to one side, the contained angle between frame and the horizontal plane is greater than 0 degree, and less than or equal to 30 degrees.

7. The roller screen machine with screen roller cleaning device according to claim 6, wherein: one end of the connecting plate is connected with the central shaft of the electric pressure roller, and the other end of the connecting plate is connected with the fixing frame through a rotating shaft.

8. Roller screening machine with screen roller cleaning device according to claim 7, characterized in that: the hydraulic push rod is fixed on the rack through a push rod seat.

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