RU2044891C1 - Conveyer transfer point and self-propelled transfer car - Google Patents

Abstract

FIELD: transportation and loading of rocks, mainly, coal. SUBSTANCE: installed on trunk conveyer is self-propelled transfer car in which screen and hopper are installed under discharging drum. Hopper directs the undersize onto trunk conveyer. The oversize is discharged onto branch conveyer. Thus loading of product different in fraction sizes is effected simultaneously into different points. Self-propelled transfer car has bull-wheels, discharging and deflecting drums installed on body and is also provided with additional section having running wheels. Installed on additional section is receiving bin with screen. Both sections of the car are interconnected for relative motion. EFFECT: higher efficiency. 7 cl, 3 dwg

Description

 The invention relates to conveyors used in open cast mining and open surface warehouses of mining enterprises during transportation and loading of rocks, mainly coal.

Known conveyor installation, including a double-drum unloading device and a unloading mechanism after it [1]
This device does not provide separation of the transported material into fractions with loading them into groups of wagons of a single train.

Also known conveyor reloading point, including the main conveyor, a mobile reloading trolley with a bypass and unloading drums, a receiving hopper and a discharge conveyor located under the reloading trolley [2]
This device is the closest in essence to the proposed invention.

 The known device also does not provide separation of the transported material into fractions with loading them into groups of wagons of a single train.

 The purpose of the invention is the creation of an improved design of the conveyor installation, which allows to divide the rock mass during transportation into two fractions with loading of the obtained fractions into groups of wagons of a single train, which ensures the production of high-quality coal.

 The goal is achieved in that the conveyor transshipment point, including the main conveyor, a self-propelled reloading trolley located on the main conveyor, a receiving hopper and a discharge conveyor installed under the reloading trolley, is equipped with a screen mounted above the receiving hopper with the possibility of loading the over-the-top product onto the discharge conveyor, and a sub-screen product to the main conveyor.

 This embodiment of the transshipment point allows us to solve the problem by dividing the entire cargo flow into two separate flows, different in fractional composition, which allows loading vehicles with separate products.

 In addition, the conveyor station is equipped with an additional self-propelled reloading trolley and an additional bypass conveyor installed below it. This embodiment of the transshipment point allows you to load the train at the same time from its two ends with a different fractional composition of the product.

 To reduce the time required for preparatory operations, each of the bypass conveyors is installed with the ability to move along the main conveyor.

 Simplification of the product separation process during its transportation while increasing the loading capacity is achieved by using an improved self-propelled reloading trolley, the design of which allows changing the product reloading process with its fractionation into a simple reloading process on a conveyor belt without product separation.

 Known self-propelled reloading trolley, including drive wheels, dropping and deflecting drums mounted on the body of the trolley (Aut. St. USSR N 1564078, class I 65 G 47/34, 1990).

 This self-propelled cart allows overloading away from the main conveyor and directly to the main conveyor itself.

 However, this trolley does not overload the product on a screen mounted above the main conveyor.

 Simplification of the process of reconfiguring conveyor operation in different modes is achieved by the fact that a self-propelled reloading trolley, including drive wheels, dropping and deflecting drums mounted on the trolley case, is equipped with an additional section with running wheels, on which a receiving hopper and a screen placed above the receiving hopper are installed, however, both sections of the self-propelled reloading trolley are interconnected with the possibility of relative relative movement. This connection can be made in the form of a power cylinder.

 It is advisable to perform a dropping drum driven. This allows you to increase the angle of the tape and reduce the dimensions of the reloading trolley.

 Figure 1 presents the conveyor transfer point, side view; in FIG. 2 same, plan view; figure 3 self-propelled reloading trolley.

 The conveyor transfer point includes a main conveyor 1 on which the main self-propelled reloading trolley 2 and an additional self-propelled reloading trolley 3 are installed.

 Under the self-propelled reloading trolleys 2 and 3, bypass conveyors 4, 5 are installed, on which the unloading of the under-screen and under-screen products occurs. Bypass conveyors 4 and 5 are installed with the possibility of movement along the main conveyor 1.

 The main self-propelled reloading trolley 2 (Fig. 3) is mounted on the drive wheels 6 and has a housing 7 on which the dumping drums 8 and rejecting 9 are fixed. The dropping drum 8 is driven and driven by the drive 10. The self-propelled reloading trolley 2 has a second movable section with running wheels 11 connected to the first section by means of a power cylinder 12. A screen 13 is installed on the second mobile section with a bypass tray 14, and placed under the screen receiving hopper 15. Both sections move along a rail 16, on which a self-propelled receiving hopper 17 is also installed. Parallel to the main conveyor 1, there is a railway onto which the train is fed (in gons) 18.

 Conveyor transfer point operates as follows.

 After the supply of the wagons 18, the by-pass conveyor 4 by moving the self-propelled reloading trolley 2 is installed against the first car of the train, and the by-pass conveyor 5 is similarly opposed to the last (the concept of the first and the last car is conditional and accepted for the sake of clarity; it is important that the by-pass conveyors are initially installed against extreme wagons). Using a loading machine, for example a bucket wheel excavator (not shown), for example, raw coal is fed to the main conveyor 1 through a guide hopper 17, which then enters the reloading trolley 2 and is unloaded to the screen 13, while the over-screen product enters the bypass conveyor 4 and further, into the carriage, and the under-product through the receiving hopper 15 returns to the conveyor 1, enters the self-propelled reloading trolley 3 and through the conveyor 5 is fed into the corresponding carriage of the composition 18. Thus, both Khodnev unloading device (carriages 2 and 3) performed its loading wagons groups independently moving towards each other along the structure. After the loading of the penultimate (by the loading sequence) wagon, the conveyor 1 is stopped. Against the latter (according to the loading sequence) of the car, a reloading trolley 2 is installed and the cylinder 12 is turned on for sliding. The section of the reloading trolley 2, on which the screen 13 is mounted, departs from the section with the discharge drum 8. Now, when the main conveyor 1 is turned on, the reloading trolley 2 transfers coal directly to the bypass conveyor 4, bypassing the roar 13.

 Thus, one group of wagons turns out to be loaded with a over-screen product (grade), another with a sub-screen product (screening), and one car with ordinary coal.

 Another option is possible when, after loading the penultimate car and stopping the conveyor (for loading), the car is not loaded, but fed under loading with a different train, at the beginning or end of the train, depending on the type of product by which it was started. In the latter case, the loading of individual wagons with an undivided product can be excluded.

 The discharge drum 8 reloading cart 2 drive allows you to significantly (about 3 times) to reduce the force in the conveyor belt 1 at the entrance to the reloading cart 3 (when they come closer). The latter allows you to increase the curvature of the tape when lifting and reduce the parameters of the reloading trolley 3. This decrease in the parameters is fundamental, since with the simultaneous loading of the penultimate and last wagons, the distance between the reloading trolleys 2 and 3 should be minimal.

Claims (6)

 1. Conveyor reloading station, including a main conveyor, a self-propelled reloading trolley located on the main conveyor, a receiving hopper and a discharge conveyor installed under the reloading cart, characterized in that it is equipped with a screen mounted above the receiving hopper with the possibility of loading the over-the-top product onto the discharge conveyor, a sub-product on the main conveyor.  2. The reloading point according to claim 1, characterized in that it is equipped with an additional self-propelled reloading trolley and an additional bypass conveyor installed below it.  3. The transshipment point according to claim 1 or 2, characterized in that each of the bypass conveyors is mounted to move along the main conveyor.  4. Self-propelled reloading trolley, including drive wheels, dropping and deflecting drums mounted on the body of the truck, characterized in that it is additionally equipped with a section with running wheels, on which there is a receiving hopper and a screen placed above the receiving hopper, while both sections are self-propelled reloading trolleys are interconnected with the possibility of relative relative movement.  5. The trolley according to claim 4, characterized in that both sections are interconnected by means of a power cylinder.  6. A trolley according to claim 4 or 5, characterized in that the dropping drum is driven.

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