DE2731424A1 - ROLLER CRUSHER - Google Patents

Description

PATENT LAWYERS QlPL.-lNG. BUSCHHOFF DIPL..INO. HENNICKE DIPL..INO. VOLLBACH

S KOLN / RH.

KALITR-WIlHtLM-RlNG 14

R * for no.

Qw 7728 1 COLOGNE, June 22nd, 1977

Act",!.:

Ana.ι

bit »· ancabtn

Westfalia Ironworks Union 4670 LUnen

Roll crusher

The invention relates to a roll crusher consisting of a base frame with a continuous conveyor, in particular a chain scraper conveyor, and a crushing roller arranged in a horizontal position above the conveyor.

Roller crushers of this type are mainly used in mining operations to crush the minerals extracted here, such as coal, iron ore, salt, potash, oips and the like. used. In the case of these roll crushers, the through conveyor, which is designed as a chain scraper conveyor, forms part of this the rotating crusher roller cooperating abutment, so that the debris during Durohgang through the crushing gap is broken between the crushing roller and the conveyor floor.

A roll crusher of this type is known, whose den Conveyor-forming base frame is equipped with a crawler track. The driven crushing roller is above of the chain conveyor between the side walls of the Orundrahmens stored. The drive unit for the

809884/03? ·

Union üisenhütte Westfalia ο τ 01 / ο /

GW 7723 2/31424

drive of the crushing roller and for the hydraulic conveyor drive is flanged to the side of the base frame.

The main object of the invention is to create a particularly powerful and as compactly built roll crusher that is preferably movable Device is designed »

The invention consists in that the conveyor is angled upwards in the working area of the crushing roller. In this case, the arrangement is preferably made so that the axis of rotation of the crushing roller opposite the bending point of the Conveyor is set in such a way that the angled parts are located on the outlet side at the roller crushing gap. In A preferred embodiment is the base frame together with the conveyor in the working area of the crushing roller near the top angled.

It has been shown that the bending effect of the conveyor in the working area of the crushing roller Crusher is improved, since this especially flat crushed material is better grasped and broken. When the Breohguts pass through the crushing gap between the conveyor and the crushing roller, the flat material arrives at the exit of the Breohspaltes in the one behind the apex of the bend ascending area of the conveyor, so that it is better gripped and crushed by the crushing roller. Since the Continuous conveyor behind the crushing roller has a gently rising course, results at the discharge end of the Conveyor a sufficiently large transition height to a downstream conveyor, e.g. a belt, although the Overall device can have a relatively low overall height »There is another significant advantage in the fact that due to the angling of the conveyor or the

809884/032 $

Westfalia Ironworks Union
GW 7728

him forming the base frame the ground clearance of the entire device is reduced in the angled area, so that at Overall, a relatively low overall height of the device uses a crushing roller with a large roller diameter v / can earth. This gives a more favorable inlet angle for the material to be crushed at the entrance to the crushing gap, see above that even larger chunks of debris can be safely seized and broken up. To with a relatively low overall height of the device has a crushing roller with a large roller diameter to be able to use, it is also recommended that the chain belts of the chain scraper conveyor within the To guide the base frame so that the vertical distance between the upper chain run and the lower chain run in the working area of the The crushing roller, i.e. in the area of the bend of the conveyor and the base frame, is smaller than on the drive and Reversing of the conveyor.

The aforementioned angling of the base frame and the conveyor is also important with regard to the ease of movement of the roll crusher according to the invention. It is advisable to arrange a chassis, preferably a simple wheel chassis, on the base frame in the area of the bend. In this case, advantageously between the Abwinklungsstelle d 's base frame and the discharge end of the conveyor an extendible and retractable support means to relieve the chassis arranged which preferably consists of mechanically verri "Gelbar or the like" n hydraulic lifting cylinders. consists. This design of the crusher makes it possible to completely relieve the chassis during the crushing operation and the device on the one hand via the extendable support device and on the other hand via a floor support on the end of the base frame, which has the crushed material task, against the ground or the floor cut off. When the device is in motion,

809884/032

Union Eisenhütte Westfalia O 7 QI / O /

öw 7728 LlQ IH C. H

. 1·

drawn in against the support device so that the device can be moved freely on the chassis. With a relatively small ground clearance of the device in the undercarriage area, there is nevertheless a relatively large ground clearance at both ends of the device, so that troughs and the like can also be easily passed through.

According to a further essential feature of the invention, the crushing roller is mounted on a roller frame or the like, which at the same time carries the drive of the device which is laterally offset to the crushing roller and is located above the conveyor. The fact that a drive flanged to the side of the base frame is dispensed with results in a substantial one Reduced overall width of the device, while on the other hand the drive in the angled area can be shifted over the conveyor in such a way that the already relatively low overall height of the device is not or not significantly increased. This results in a total of one extremely compact design of the entire device.

It is also advisable to use the roller frame according to Art a swing arm can be swiveled in height on the base frame tu. Preferably, the Walsen frame is means at least of a double-acting hydraulic actuating cylinder, whose cylinder space (annular space), which decreases in size during the upward pivoting movement, can be connected to a hydropneumatic pressure accumulator in order to achieve a to achieve resilient protection of the crushing roller. Said drive preferably consists of an electric motor, which via a mechanical transmission, possibly with the interposition of a shear pin clutch, the Crush roller drives. The electric motor drives a controllable pump at the same time, which in turn feeds the hydraulic motor for driving the conveyor. With this

809884/0328

Union Eisenhütte Westfalia O * 7 O 1 / O /

r>., 779 2/0 I 42 A

772

Design of the Antrieoes is achieved that with stone Current consumption of the electric motor with increasing load on the crusher increases the conveyor speed continuously is reduced, so that the crushed material supply automatically adapts to the crushing capacity of the crusher. In this way, overloading the crusher becomes reliable avoided. An adjustment of the conveyor speed νου. Hand as well as reversing the conveyor also possible. If the crushing roller is blocked by non-breakable parts, the shear bolt safety device speak to. At the same time, the system has a speed monitor switched off.

The feed side of the device according to the invention is expediently designed as a bunker. It is advisable to fix the wall elements of the bunker in a detachable manner so that different bunker sizes and shapes can be added. Furthermore, hinged top plates can be attached to the side walls of the bunker, which when the device according to the invention is set up in an underground route against the route joints in order to prevent the route from being filled up with the debris. The top plates also serve to increase the bunker capacity.

According to a further feature of the invention, the conveyor is tunneled over in the discharge area, i.e. in the area between the crushing roller and the discharge end, with a sealing rubber apron or the like at the discharge end. intended can be. The tunneling of the conveyor in the exit area prevents the development of dust here. If necessary can before the roll crusher inlet and inside the tunnel a water jet with the help of fan nozzles or the like. be made.

809884/032

Ironworks Union VJestfalia O 7 QI

Gw 7728 ^L ι ^{ö 1}

As mentioned, the crusher according to the invention is preferred designed as a mobile device and for this purpose with a chassis, expediently a simple wheel chassis, provided, although e.g. a crawler track is also used could be.

In the drawing is a preferred embodiment of the invention shown. It shows:

1 shows a device according to the invention in its operating position during the breaking process in side view;

FIG. 2, likewise in side view, the device according to FIG. 1 in the driving state; FIG.

3 shows the device according to FIGS. 1 and 2 in plan view.

The crusher shown has a base frame 1 designed as a continuous conveyor, which is provided with a wheeled chassis with wheels 2 with solid rubber tires. The continuous conveyor consists in a known manner of a chain scraper conveyor whose endless link chains 4 connected by scrapers 3 are driven and deflected on the feed and discharge sides by chain drums 5 and 6. With the conveyor bottom of the chain scraper conveyor is referred to.

The base frame 1 and the chain scraper conveyor or its conveyor floor 7 are angled in the middle area of the device at t. The chassis with the wheels 2 is arranged in the area of the bend of the base frame and the conveyor. On the base frame 1, in the area between the chassis and the discharge end 9 of the conveyor, support devices 10 are arranged, which are made of hy-

809884/0328

Union Eisenhütte Westfalia O 7 Q 1/9 /

Gw 7728 * '°' * ♦ * ■ ^H

• / IO -

draulisehen lifting cylinders 11 exist, their piston rods wear jointly movable PuBplatten 12. By extending the Lifting cylinder 11, the device can be raised so far with its discharge-side end 9 that the wheels 2 of the chassis are completely relieved. This supports itself Device at its opposite feed end 13 by means of a floor plate 14 arranged on the underside of the base frame over a large area on the floor or the track sole 15 away. Fig. 1 shows the position of the crusher during the crushing operation with the lifting cylinders 11 extended and the undercarriage relieved. The discharge end 9 is so far here raised so that there is sufficient transfer height for transferring the broken heap to a (not shown) downstream conveyor, e.g. a belt. The height of the transfer end 9 above the sole level is at least 1 m, in this operating position of the device, the scraper conveyor runs at least approximately horizontally on the section between β a feed end 13 and the central bending point 8, while it on the adjoining section between the bending point 8 and the discharge end 9 under a pointed Angle of about 10 to 20 ° to the horizontal increases.

In the region of the bend 8, above the conveyor on the base frame 1, a roller frame 16, similar to a rocker arm, is pivotably mounted in a joint 17-bit horizontal joint axis. The crushing roller 18 is located in the roller frame rotatably displaced in the horizontal position. In addition, the roller frame 16 carries an electric motor 19 »which the replaceable, conical chisels equipped crushing roller 18 drives via a gear 20 with the shear pin clutch engaged. The motor 19 is thus also located above the conveyor between the two opposite side walls of the base frame 1, whereby it is opposite

809884/0328

Union üisennütte> .estialia
Gv / 7728

• 41

iil> he f'er crushing roller 1j to the discharge end 9 laterally is offset.

The electric motor 19 also serves to drive the drive drum t> of the scraper chain conveyor. To this end it has a continuous motor shaft, with one end of the line the jirech roller is drivingly coupled via the gearbox, while a hydraulic pump 21 with power control is drivingly connected to the other end of the shaft feeds, which drives the drive drum 5 of the conveyor via a chain drive with roller chain 23, which is housed in a protective housing. An oil cooler with a built-in electric motor is designated as an air cooler at 24. The oil cooler 24 is arranged on the side of the base frame 1 together with an oil container 25 and an electrical content cabinet 2ό and a hydraulic control stand 27.

The pivotable roller frame carrying the crushing roller 13 can be raised and lowered using double-acting hydraulic actuating cylinders, which increases the opal width of the between the crushing roller and the conveyor bottom can be adjusted crushing gap formed. The hydraulic actuating cylinders 23 are supported laterally in an articulated manner on the base frame 1, while their piston rods are articulated at 29 on the roller frame 16 are. The Ringräurae of the actuating cylinder 23 are on a hydropneumatic pressure accumulator (not shown) connected, whereby a resilient protection of the crushing roller is achieved.

It can be seen that the axis of rotation 30 of the crushing roller 18 opposite the bending point 3 of the conveyor and the The basic framework is slightly displaced towards the end of the task 13

809884/0328

Union üisennütte Westfalia ο «7o

GW 7728 Il O

/ 12.

is set in such a way that the bending point ö of the conveyor bottom 7 is located on the outlet side of the roller crushing gap. This angling of the conveyor floor in the area of the crushing rollers ensures that flat crushed material is better grasped by the rotating crushing roller and is broken at the latest when it leaves the crushing gap. This considerably improves the breaking effect of the roll crusher. The kinking of the base frame and the conveyor also results in a sufficiently large discharge height at the discharge end 9 of the conveyor in the operating position of the crusher according to FIG. 1, as mentioned above. When the crusher is in the driving position according to FIG. 2, despite the relatively small ground clearance of the device in the angled area 8 and in the area of the chassis 2 at the ends 9 and 13, a relatively large ground clearance is achieved, so that troughs and the like can also be easily traversed. Due to the low ground clearance of the device in the bending and chassis area, there is a large installation space above the conveyor to accommodate the crushing roller and the drive, so that a crushing roller with a very large roller diameter can be used with a low overall height of the device.

In the working position according to FIG. 1, the device is raised hydraulically with the aid of the two support devices 10, so that the chassis is relieved. The hydraulic lifting cylinders 11 are mechanically locked in this position, for example by means of socket pins, so that the support via the support devices 10 is maintained even in the event of an unintentional drop in pressure in the hydraulic system.

The fact that the crushing roller 18 and the hydraulic to drive 21, 23 of the conveyor from the common electric

809884/032 *

Union of Eisenhütte Westfalia or; 01

Gw 7728 ι- * Ο I

Motor 19 are driven, with increasing power consumption of the electric motor, i.e. with increasing load the crushing roller, the conveyor speed of the chain scraper conveyor correspondingly reduced, so that a smaller amount of crushed material is fed to the roll crusher. Conversely, the conveyor speed and thus the amount of crushed material fed to the crusher decreases with decreasing power consumption of the electric motor 19 increased. The crushed material supply automatically becomes the crushing power during operation of the roll crusher adapted. "Sine adjustment of the conveyor speed by hand as well as reversing of the sponsor are also possible. If the crushing roller is blocked by non-breakable parts, it speaks the above-mentioned shear bolt safety device. The resilient protection of the crushing roller with the help of the hydraulic The hydropneumatic pressure accumulator assigned to the actuating cylinders 28 prevents damage to the crushing rollers due to non-breakable parts.

In order to be able to move the device, the hydraulic lifting cylinders 11 of the support devices 10 after releasing the mechanical locks retracted so that the device moves on wheels 2 with the aid of a towing vehicle can be. The wheel chassis is arranged in the area of the kink in such a way that in the driving state according to 2 shows the opposing torques about the axis of the resulting from the weight distribution and the lever arms Wheel chassis are approximately canceled.

It is also important that the vertical distance X of the upper and lower runs of the endless scraper chain belts 4 on those areas of the chain scraper conveyor which are near its ends 9 and 13, is greater than in the area the bending point 8 and accordingly in the working

809884/0326

Union Eisenhütte Westfalia ο »7 01 / ο /

Gw 7728 ZfO I 4 Z 4

Ak.

area of the crushing roller 18. The vertical dimension (3 of the chain distance is denoted by Y here. Due to this configuration, there is a kink area above the conveyor base 7 a large installation height for the crushing roller and at the same time a relatively small construction height for the conveyor.

The one between the end of the task 1? and the crushing roller 18 located Section of the device according to the invention is designed as a bunker. The base frame 1 carries here releasably fastened wall elements 31 »which the filling cross-section of the In this area. In addition, hinged attachment plates 32 are provided, which are against the lateral Let the section joints fold so that a proper transfer of the debris to the crusher is guaranteed.

The chain scraper conveyor is completely tunneled over and surrounded in the area between the crushing roller 18 and the discharge end 9 in the conveying upper run, as shown at 33. At the discharge end 9 is an elastic rubber apron sealing the conveyor channel J> U or the like. arranged.

809884/0326

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Claims (1)

Expectations: Y / roll crusher, consisting of a base frame with a continuous conveyor, in particular a chain scraper conveyor, and a crushing roller arranged horizontally above the conveyor, thereby characterized in that the conveyor (3, 4) is angled upwards in the working area of the crushing roller (13) is. 2. roll crusher according to claim 1, characterized ge indicates that the base frame (1) together with the conveyor (3 »4) in the working area of the The crushing roller (13) is angled upwards. 3. Y / alzenbrecher according to claim 1 or 2, characterized marked eichnet that in the area of the bend (3) a chassis, preferably a wheeled chassis (2), is arranged on the base frame (1). 4. Y / alzenbrecher according to any one of claims 1 to 3> as characterized by the fact that the Dre axis of the crushing roller (13) opposite the kink point (β) of the conveyor is set forward in such a way that the kink point the outlet on the Y / alzen crushing gap is located. 809884/032 * OWQtNAL INSPECTED 'J3 ^T werI; acha: Ct ^ isenh'.ttc., Estf? , 7 273H2A. a :. '.. salt crusher nacii one of: m ~ "iriiclie 1 bi ^ - 4, Ί .- ·. by £ e: -; e η: ι ■: ci ο Ii η ο t, d: .. d: .e .. uknickstelle les ürunclrahmens (1) u (■ ·.). .. o of, '' urderers (3, 4) about au_ iialuer LIOa: ^ ° -it Grunr.rerir.ier .. ·? (1) ".isj'c, o. ■■■ "rv.ze:. 'bi''echor aacli bucket dei" claims 1 to ^ j, ü?. 6. urch - r- 1; marks that ζτ Ig oh ε: "· r. er Abknickstello (:) -! es CTrundivJ ^ icac (1) and the austra ^ ssei'cij'en liide (9) of the conveyor an adjustable and adjustable Jc ^; i "ozdevice (10) for j-j-loadvm ^; de j ': J \ rv / erks is arranged. 7. Roll crusher according to claim 6, characterized in that £ e that the support device (1u) from mechanically lockable hydraulic lifts (11) exists. - ;. , roller crusher according to one of claims 1 to 7, characterized in that the bzv /. the chain belts (4) of the conveyor are guided in such a way that the vertical distance (Y) between the upper and lower chain runs in the working area of the crushing roller (1: ' ¹ ) is smaller than at the drive and reversing end of the conveyor. 9 »Roll crusher according to one of claims 1 to d, characterized in that the crushing rollers (1i) on a '.Valzenraiunen (16) or dsl. stored is, which is at the same time the one laterally offset to the crushing rod, "Roller drive (19) lying above the conveyor carries. 10. Roll crusher according to claim 9, characterized in that that the rollers (15) 809884/0326 BAP ; each ^. ^r Erk reheat Jisenii'ivbe GCxJaiio ο τ 01 / ο / P'-. Z / J I 4 2 A like a ": · Crihvan ^ e li'3he.averschv / e; ikbar ara basic frame (1) is jeli- ^ ert. 11. Roll crusher according to claim 10, characterized in that ge>: e η η v. eich η et, let the Y / alz frame (16) with el ε at least one double-acting hydraulic cylinder. (2 0 solr 'e: i! .I "oar, whose _{cylinder space, which reduces in the: .rcciiscir, .onJcüGViegun L.} , is connected to a hydro-oneumatic pressure vessel. 1 ".. / aizeiibreciiei ¹ according to one of claims 1 to 11, since Ö. G · ^Γ e ^ ⁿ 2 calibrate η et that the" roller drive from a meme eir. On the one hand the crushing roller (13) and on the other hand a hydraulic pump (21) of a hydraulic conveyor drive (Γ! 2) driving electric motor (19) consists. 1;·. i.'alzenbrecher according to one of claims 1 to 12, d a r ' u r c h marked that the conveyor tunneled over in its discharge-side area is. 14. Alzejibrecher according to one of claims 1 to 13, characterized in that detachable and / or foldable attachment plates (31, 32) are arranged on the base frame (1) in the feed area (13) of the conveyor. 809884/0326