Mobile screening machine system

Abstract

The utility model relates to mining machinery, in particular to a movable screening machine system. Comprising a rack, a crawler walking mechanism and a belt conveyor, the crawler walking mechanism is arranged at the bottom of the rack, an inclined feeding machine is arranged on the upper portion of the rack, a head chute is arranged below a discharging roller of the feeding machine, a horizontally-arranged screening machine is arranged at the discharging end of the feeding machine, and a lower chute and a discharging chute are formed in the lower portion and the outer end of the screening machine respectively. A bulk material belt conveyor is arranged on the rack below the feeding machine and the screening machine; the lower chute and the head chute are positioned above the feeding end of the bulk material belt conveyor; the discharging end of the bulk material belt conveyor is located below the feeding end of the feeder, a bulk material chute is arranged at the discharging end of the bulk material belt conveyor, and the bulk material chute is located above the feeding end of the head belt conveyor. The limestone pre-screening device moves along with the change of an excavation site, limestone is pre-screened at the excavation site, raw materials meeting the specification are conveyed to a transport vehicle through the discharging chute, and the yield of qualified limestone is improved.

Description

Technical Field

[0001] The utility model relates to mining machinery, in particular to a mobile screening machine system. Background Art

[0002] When mining limestone by blasting, the limestone raw materials contain 25%-30% (particle size ≤ 50mm) of fine material and soil. The mined limestone raw materials need to be transported to the processing site for crushing and screening, and the fine material and soil occupy transportation resources. During crushing, the fine material and the coarse material (particle size ≥ 50mm) enter the hammer crusher together. These materials will not only cause over-crushing in the crusher, but also shorten the service life of wear-resistant parts such as the hammer head and hammer disc, and increase operating costs. Due to the large amount of mud clay components in the fine material, it is easy to block the hammer crusher grate device, resulting in a reduction in the crushing system. Especially in the rainy season, blockages are more frequent, which brings greater maintenance labor intensity to maintenance personnel. Utility Model Content

[0003] The utility model aims to solve the above technical problems, thereby providing a mobile screening machine system, which can pre-screen limestone at the mining site and improve the transportation volume and output of qualified limestone.

[0004] The utility model solves the technical problem and adopts the following technical solution:

[0005] A mobile screening machine system includes a frame and a crawler traveling mechanism, wherein the crawler traveling mechanism is placed at the bottom of the frame.

[0006] An inclined feeder is provided on the upper part of the frame, a head chute is provided below the discharging roller of the feeder, a horizontally arranged screening machine is provided at the discharging end of the feeder, a lower chute and a discharging chute are provided at the lower part and the outer end of the screening machine respectively, a bulk material belt conveyor is provided on the frame below the feeder and the screening machine, and the lower chute and the head chute are located above the feeding end of the bulk material belt conveyor;

[0007] The discharging end of the bulk material belt conveyor is located below the feeding end of the feeder, and the discharging end of the bulk material belt conveyor is provided with a bulk material chute, and the bulk material chute is located above the feeding end of the head belt conveyor.

[0008] Compared with the prior art, the utility model adopting the above technical solution has the following beneficial effects:

[0009] 1) Move with the changes of the mining site, pre-screen the limestone at the mining site, and transport the mined limestone to the screening machine through the feeder. The screening machine selects the fine material and soil and enters the bulk material belt conveyor. The raw materials that meet the specifications are transported to the transport vehicle through the unloading chute to prevent fine material and soil from entering the crusher, thereby increasing the service life of the crusher and reducing maintenance costs;

[0010] 2) The equipment has strong mobility and low equipment failure rate, which increases the transportation volume of qualified limestone, thereby increasing production and reducing transportation costs. It has strong flexibility and adaptability.

[0011] Further, the optimization scheme of the present invention is:

[0012] The feeder is a plate feeder, and a feeder guard is arranged on the upper part of the feeder and along the length direction of the feeder.

[0013] The screening machine is a wave roller screening machine, and a screening machine shield is arranged on the upper part of the screening machine, and the screening machine shield is connected with the feeder shield.

[0014] An inclined impact plate is provided at the feed end of the screening machine housing and above the undulating roller, and a wear-resistant plate is installed on the upper plate surface of the impact plate.

[0015] A spray pipe is arranged above the feeding end of the feeder.

[0016] A spray pipe is provided above the discharging chute of the screening machine.

[0017] The bulk material belt conveyor is arranged obliquely.

[0018] The head belt conveyor is arranged obliquely, and the discharging end of the head belt conveyor extends out of the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0020] Figure 2 It is a structural schematic diagram of a feeder according to an embodiment of the utility model;

[0021] Figure 3 A schematic diagram of a screening machine and a screening machine shield according to an embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of a bulk material belt conveyor according to an embodiment of the utility model.

[0023] In the figure: crawler walking mechanism 1; frame 2; plate feeder 3; head chute 3-1; feeder shield 4; spray pipe 5; undulating roller screening machine 6; impact plate 6-1; lower chute 6-2; discharge chute 6-3; scraper plate 6-4; screening machine shield 7; wear-resistant lining plate 7-1; bulk material belt conveyor 8; bulk material chute 8-1; head belt conveyor 9. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0026] See also Figure 1-Figure 4 The present embodiment provides a mobile screening machine system, which is mainly composed of a crawler travel mechanism 1, a frame 2, a plate feeder 3, a wave roller screening machine 6, a bulk material belt conveyor 8 and a head belt conveyor 9. The frame 2 is a welded component, and a crawler travel mechanism 1 is installed at the bottom thereof. The crawler travel mechanism 1 is a prior art. The plate feeder 3 is installed on the upper part of the frame 2. The discharge end of the plate feeder 3 is tilted to the upper right. A feeder shield 4 is installed on the upper part of the plate feeder 3 and along its length. The feeder shield 4 prevents the smoke and dust generated by the material from floating. A spray device is installed at the feeding end of the plate feeder 3. The spray device is mainly composed of a spray pipe 5, a nozzle, a water pump and a water tank. The spray pipe 5 is installed with multiple nozzles with downward nozzles. The spray pipe 5 is connected to the water tank through a water pump. The water pump and the water tank are installed on the frame 2. The spray pipe 5 reduces the smoke and dust generated during the production process. A head chute 3 - 1 is installed on the frame 2 below the head roller of the plate feeder 3 , and the head chute 3 - 1 prevents the material from overflowing.

[0027] The frame 2 at the discharge end of the plate feeder 3 is installed with an undulating roller screening machine 6. The undulating roller screening machine 6 is horizontally arranged, and its feed end is lower than the discharge end of the plate feeder 3. An inclined impact plate 6-1 is installed at the feed end of the box of the undulating roller screening machine 6 and above the undulating roller. A wear-resistant plate is installed on the upper plate surface of the impact plate 6-1. The impact plate 6-1 reduces the erosion of the equipment by the material and increases the service life of the equipment. A screening machine shield 7 is installed on the upper part of the undulating roller screening machine 6. The screening machine shield 7 is connected to the feeder shield 4. Wear-resistant lining plates 7-1 are installed on both sides of the inner walls of the lower parts of the feeder shield 4 and the screening machine shield 7. The wear-resistant lining plates 7-1 reduce the erosion of the equipment by the material and increase the service life of the equipment. Sealed doors are provided on both sides of the screening machine shield 7 , which are composed of a door body, a pin shaft, a sealing strip and a latch. The sealed doors facilitate entry into the screening machine shield 7 to overhaul the undulating roller screening machine 6 .

[0028] The lower part of the undulating roller screening machine 6 is equipped with a lower chute 6-2, and the fine materials and soil selected by the undulating roller screening machine 6 enter the lower chute 6-2. The outer end of the undulating roller screening machine 6 is equipped with a discharge chute 6-3, and qualified raw materials enter the discharge chute 6-3. A spray pipe 5 is installed above the discharge port of the discharge chute 6-3. A scraper plate 6-4 is installed on the box below each undulating roller, and the scraper plate 6-4 cleans the materials stuck on the undulating roller.

[0029] The frame 2 below the plate feeder 3 and the undulating roller screening machine 6 is equipped with a bulk material belt conveyor 8, and the lower chute 6-2 and the head chute 3-1 are located above the feeding end of the bulk material belt conveyor 8. The bulk material belt conveyor 8 is arranged obliquely, and its left end is inclined downward by 8 degrees, and the discharge end of the bulk material belt conveyor 8 is located below the feeding end of the plate feeder 3. The discharge end of the bulk material belt conveyor 8 is provided with a bulk material chute 8-1, and the bulk material chute 8-1 is located above the feeding end of the head belt conveyor 9, and the discharge end of the head belt conveyor 9 is arranged upwardly obliquely.

[0030] The working process of this embodiment is: the material is unloaded to the feeding end of the plate feeder 3 by a forklift, and the material is transported to the undulating roller screen 6 by the plate feeder 3, and the fine material and soil enter the lower chute 6-1 below the undulating roller screen 6 and slide onto the bulk material belt conveyor 8, and then the fine material and soil are transported to the head belt conveyor 9 through the bulk material belt conveyor 8, and the head belt conveyor 9 transports the fine material and soil to the designated position (head position), and the large selected materials on the undulating roller screen 6 are discharged from the discharge chute 6-3 and transported away by the mine car (tail position). The scraper 6-4 under each undulating roller can clean up the material stuck on the undulating roller, and the cleaned material and the screened material are transported to the bulk material belt conveyor 8 through the lower chute 6-2, and then the material is transported to the designated position.

[0031] The utility model can transport fine materials and coarse materials by classification at the excavation site, avoid crusher jam, slow down the wear of wear-resistant parts such as the crusher rotor, and increase the service life of parts. Clay is screened before entering the crusher, which increases the output of the crusher, reduces wear and reduces production costs. The electrical equipment of the utility model is equipped with remote control start, which can realize the start and stop of the equipment remotely, and improve production efficiency.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A mobile screening machine system, comprising a frame and a crawler traveling mechanism, wherein the crawler traveling mechanism is placed at the bottom of the frame, and is characterized in that: An inclined feeder is provided on the upper part of the frame, a head chute is provided below the discharging roller of the feeder, a horizontally arranged screening machine is provided at the discharging end of the feeder, a lower chute and a discharging chute are provided at the lower part and the outer end of the screening machine respectively, a bulk material belt conveyor is provided on the frame below the feeder and the screening machine, and the lower chute and the head chute are located above the feeding end of the bulk material belt conveyor; The discharging end of the bulk material belt conveyor is located below the feeding end of the feeder, and the discharging end of the bulk material belt conveyor is provided with a bulk material chute, and the bulk material chute is located above the feeding end of the head belt conveyor.

2. The mobile screening machine system according to claim 1, characterized in that: The feeder is a plate feeder, and a feeder guard is arranged on the upper part of the feeder and along the length direction of the feeder.

3. The mobile screening machine system according to claim 1, characterized in that: The screening machine is a wave roller screening machine, and a screening machine shield is arranged on the upper part of the screening machine, and the screening machine shield is connected with the feeder shield.

4. The mobile screening machine system according to claim 1, characterized in that: An inclined impact plate is provided at the feed end of the screening machine housing and above the undulating roller, and a wear-resistant plate is installed on the upper plate surface of the impact plate.

5. The mobile screening machine system according to claim 1, characterized in that: A spray pipe is arranged above the feeding end of the feeder.

6. The mobile screening machine system according to claim 1, characterized in that: A spray pipe is provided above the discharging chute of the screening machine.

7. The mobile screening machine system according to claim 1, characterized in that: The bulk material belt conveyor is arranged obliquely.

8. The mobile screening machine system according to claim 1, characterized in that: The head belt conveyor is arranged obliquely, and the discharging end of the head belt conveyor extends out of the frame.

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