JP2002126564A - Mobile stone crusher with preliminary sifting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile stone crusher comprising a supply device, a stone crusher and a main conveyor for removing a crushed material, with a preliminary sifting device mounted on the same chassis. SOLUTION: This stone crusher is equipped with the preliminary sifting device 12 mounted on the same chassis. Preferably, the preliminary sifting device 12 is installed under the main conveyor 7 for a product and inclined so that the product is transferred by traversing a sift by gravitational force.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a mobile or self-propelled primary crushing device for crushing similar solid materials such as rock or gravel, concrete, brick, slag, glass.

[0002]

2. Description of the Related Art Primary crushers are the first devices for receiving materials from quarries, demolition sites, and the like. Typically,
In primary crushing, the material supplied to the crusher contains debris of very different sizes. This is the primary crusher
This is because it cannot be configured to precisely control the distribution of fragment sizes of the crushed material. A more important feature of the primary crusher is to maximize the input capacity. This has led to the situation that materials crushed by primary type crushers are rarely useful for commercial purposes. This is the technical application of crushed rock
(E.g., concrete, asphalt, rail or road foundations, dams, etc.) require a limited debris size distribution, but the products crushed in primary crushers contain several different debris sizes. is there. This requires that the crushed material be sieved and divided into classifieds.

[0003] Usually, the primary crushing material is further crushed by a secondary, tertiary or higher stage crusher,
Adjust the end product fragment size. It is often advisable to reduce the distribution debris size of the primary crushing material in order to optimize the production capacity and the product quality of those later stages. Generally, this is usually done by sieving the crushed material in a separate sieving device having a vibrating sieve.

[0004]

The prior art method using a separate sieving device has several disadvantages. A separate sieving device is a very expensive solution, usually requiring at least the addition of an expensive chassis and the required power transmission. Also, when high mobility of the crushing process is required, a separate sieving device increases transportation costs. Furthermore, the two separate devices are more difficult to arrange with each other in crushing sites where the flat surface area is very often limited.

[0005]

In order to solve the above-mentioned problems, a mobile lithotripter according to claim 1 comprises a supply device,
A crusher and a main conveyor for removing crushed materials are provided, and a preliminary sieving device is attached to the same chassis. A mobile lithotripter according to a second aspect is characterized in that, in the configuration of the first aspect, the preliminary sieving device is mounted below the main conveyor at substantially the same angle as the main conveyor. Claim 3
The mobile lithotripter according to the present invention is characterized in that, in addition to the configuration of the above-mentioned claim 2, the mobile crusher has a discharge conveyor for discharging a product from above the preliminary sieving device. Also,
A mobile lithotripter according to a fourth aspect is characterized in that, in addition to the configuration of the third aspect, a conveyor further transports the discharged product and returns it to the supply device.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to a conventional crusher shown in FIG. Referring to FIG. 1, generally, a primary crushing device of the prior art generally includes a chassis 1 on which wheels or crawlers 2 are mounted, a supply hopper 3 capable of continuously feeding materials to be crushed, and a supply hopper 3. Feeding device, which is usually a vibrating type, controls the input of materials to the crusher to a constant level and separates fine materials from the supplied materials.
And a chute 5 that passes the separated fine materials to the discharge conveyor and collects the supply materials, which are usually jaw-type or impact-type crushers, and clarify a functional part as the jaw-type crushers. A crusher 6 for reducing the size of fragments, a main conveyor 7 for discharging crushed materials from the crusher, and a fine material discharge conveyor 8 for discharging separated fine materials from the crusher (here, the main conveyor At right angles and extending sideways from the crusher)
A magnetic separation device 9 for removing unnecessary magnetic debris such as concrete reinforced steel bars from the crushed material is provided.

The present invention is shown in FIG. This figure shows a primary crushing device with the components described above in the prior art device and an integrated vibration sieving device additionally included (note that in FIG. 2, the same as in FIG. 1). Are denoted by the same reference numerals). The material is discharged by the main conveyor 7 through the funnel 13 to the upper end of the vibrating sieving device 12 (preliminary sieving device). The material is spread on the sieve cloth (not shown) by gravity. Due to the vibration of the sieve, the fine material falls through the sieve cloth onto the first discharge conveyor 14, which conveys the sieved material out of the crushing device. Debris that is too large to pass through the sieve cloth is guided by gravity to the lower end of the sieve, where the debris falls off the sieve and falls onto a second discharge conveyor 15, where the conveyor 15
The product is unloaded from the crusher (where conveyor 15 is perpendicular to the main conveyor and extends laterally from the crusher).

[0008] Preferably, the sieve is inclined at substantially the same angle as the main conveyor. This saves space and allows for simple uniaxial excenters.
This type does not allow the material on the sieve to be fed in the feed direction, but this work is done by gravity.

Further, a two-stage sieve including a two-stage sieve can be used. This structure also requires another conveyor to discharge material from the crusher.

To support the additional weight of the sieve and the conveyor, a set of additional support legs 16 are required.

[0011] Preferably, during transport, all discharge conveyors are collapsible along the chassis so that the entire crushing device is compact.

Further, a further conveyor can be added to the chassis of the crushing apparatus to form a closed circuit in the crushing step. Here, a return conveyor (not shown) guides the material from the second discharge conveyor 15, returns the material to the supply hopper, and again inputs the product on the pre-screened sieve into the crusher.

The present invention eliminates the need for a separate pre-sieving device that requires a separate chassis and power source, is very costly, and requires additional space at the crushing site. It is also easier to transport one integrated device instead of individual devices.

[Brief description of the drawings]

FIG. 1 is a diagram showing a conventional primary crushing device.

FIG. 2 is a diagram showing a primary crushing device according to the present invention.

[Explanation of symbols]

 1 Chassis 4 Feeder 6 Crusher 7 Main conveyor 12 Vibrating sieving device (Preliminary sieving device) 15 Second discharge conveyor (Discharge conveyor)

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[Procedure amendment]

[Submission Date] October 16, 2000 (2000.10.
16)

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

5. The crusher is a jaw crusher.
The movement according to any one of claims 1 to 4, wherein
Stone crusher.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

The present invention is shown in FIG. This figure shows a primary crushing device with the components described above in the prior art device and an integrated vibration sieving device additionally included (note that in FIG. 2, the same as in FIG. 1). Are denoted by the same reference numerals). The material is discharged by the main conveyor 7 through the funnel 13 to the upper end of the vibrating sieving device 12 (preliminary sieving device). Due to gravity, the material is spread on the sieve (not shown).
Fine material is first passed through the sieve by vibrating the sieve.
It falls onto a discharge conveyor 14, which conveys the sieved material out of the crushing device. Debris that is too large to pass through the sieve is guided by gravity to the lower end of the sieve, where the debris falls off the sieve and falls onto a second discharge conveyor 15, which conveys product from the crushing device. (Where the conveyor 15 is perpendicular to the main conveyor and extends laterally from the crusher).

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction contents]

[0008] Preferably, the sieve is inclined at substantially the same angle as the main conveyor. This saves space and allows the use of a simple uniaxial vibrating sieving device . This type does not allow the material on the sieve to be fed in the feed direction, but this work is done by gravity.

Continued on the front page (72) Inventor Kilsey Nieminen, Finland, F.I.N-33800, Tampere, Coupmententier 41 J.73 (72) Inventor, Kai Jere-Ouchinen, Finland, F.I.N. Inventor Marco Nuora Finland, F.I.N-33560, Tampere, Ilyarankatsu 62 D.27 (72) Inventor Kimo Koronen, Finland.E.I. 33580, Tampere, Eugene Lukma 4 D 20 (72) Inventor Timo Timperi, Finland, F.I.N.-33960, Pilicara, Iarintier 14 (72) Inventor, Zeppo Kozken Korba Finland, F.I.N.-37120, Kia, Anirankatsu 27 F-term (reference) 4D067 DD04 DD08 DD13 DD14 DD15 GA02 GA03 GA06 GA08 GA20 GB05

Claims (4)

[Claims] 1. A mobile lithotripter comprising a supply device, a crusher, and a main conveyor for removing crushed materials, wherein a preliminary sieving device is mounted on the same chassis. 2. The mobile lithotripter according to claim 1, wherein the preliminary sieving device is mounted below the main conveyor at substantially the same angle as the main conveyor. 3. The mobile lithotripter according to claim 2, further comprising a discharge conveyor for discharging a product from above the preliminary sieving device. 4. The mobile lithotripter according to claim 3, further comprising a conveyor that conveys the discharged product and returns the product to the supply device.