FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
(See Section 10; Rule 13)
1. TITLE OF THE INVENTION
A MOBILE BULK MATERIAL PROCESSING APPARATUS
2. APPLICANT
a) Name: SANDVIK LTD
b) Nationality: A Great Britain company
c) Address: 2 Tullyvannon Road, Ballygawley Dungannon BT70 2HW (GB)
3. PREAMBLE TO THE DESCRIPTION
The following specification particularly describes the invention and the manner in
which it is to be performed.
2
FIELD OF THE INVENTION
[01] The present invention relates to a mobile bulk material processing apparatus
comprising a bulk material feed station and a primary processing unit for the
bulk material. In particular, the invention relates to a mobile bulk material5
processing apparatus having a bulk material crusher. The invention also
relates to a method of detaching a primary processing unit from a mobile bulk
material processing apparatus.
BACKGROUND TO THE INVENTION10
[02] Mobile bulk material processing apparatus are shipped all over the world. As
the transport laws regarding dimensions and weights are different to each
specific region, these differences can make selling a product difficult if it
becomes logistically problematic to deliver. There are unique ways to reduce15
the overall weight of the product down, one of these is by removing the
primary processing unit (e.g., the crushing chamber) and shipping it
separately, which normally accounts for a large amount of total weight.
However, due to the nature of bulk processing apparatus the feed discharge
chute must overlap the crushing chamber inlet chute to ensure no spillage20
occurs during operation. With this overlap present it becomes difficult to
remove the crushing chamber quickly and efficiently, as other items on the
product must be removed first.
[03] It is an objective of the invention to overcome at least one of the above-25
referenced problems.
[04] From publication EP 2 767 340 A1 there is known a material processing
apparatus comprising a first material processing unit, for example a crusher;
a feed conveyor; and a second material processing unit, for example a30
screening unit. The feed conveyor and the second material processing unit are
3
both movable with respect to the first material processing unit and with
respect to each other so that material can be fed into the first material
processing unit directly from the feed conveyor, or indirectly from the feed
conveyor via the second material processing unit.
5
[05] From publication WO 2008/129287 A2 there is known a crushing machine
including a crushing means, a feed conveyor for feeding material to the
crushing means. The feed conveyor being movable between a normal
operating position in which the material is fed to the crushing means and a
bypass position in which the material is fed to the bypass chute.10
SUMMARY OF THE INVENTION
[06] The objective is met by the provision of a mobile bulk material processing
apparatus that has a feedstation frame mounted to the main frame for15
pivotable movement of the feedstation frame in an arc from an operating
position in which a discharge end of the bulk material feeder overlaps a bulk
material inlet of the primary processing unit to a non-operating position in
which the discharge end of the feeder is disposed rearwardly and upwardly of
the inlet of the primary processing unit. Pivotal attachment of the feedstation20
frame to the main frame provides an efficient method of distancing the
discharge end of the bulk material feeder from the inlet and provides space
for the primary processing unit to be detached from the main frame and
vertically lifted away from the main frame. A pivoting articulation
arrangement also allows the feedstation to be articulated using only a fluidic25
ram on each side of the frame, without the needs for additional motors and
other articulation systems. In addition, it allows difficult to access parts of the
apparatus to be accessed, such as the jaw wedge bolts, rubber seals, chute
liners and the underscreen mesh.
30
4
[07] In a first aspect, the invention provides a mobile bulk material processing
apparatus comprising:
[08] a main frame having a front part and a rear part;
5
[09] a bulk material primary processing unit detachably attached to the front part
of the main frame and comprising a bulk material inlet; and
[010] a feedstation to feed bulk material to the primary processing unit, the
feedstation comprising a feedstation frame connected to rear part of the main10
frame and a bulk material feeder connected to the feedstation frame, the bulk
material feeder having a rearward feed end to receive bulk material and a
frontward discharge end that overlaps the bulk material inlet of the primary
processing unit
15
[011] wherein a rearward end of the feedstation frame is pivotably connected to the
rear part of main frame for pivotable actuation of the feedstation frame in an
arc from an operating position in which the discharge end of the conveyor
overlaps the bulk material inlet of the primary processing unit to a non-
operating position in which the in which the discharge end of the conveyor is20
disposed rearwardly of the crushing chamber inlet to allow the primary
processing unit to be vertically lifted away from the main frame.
[012] In any embodiment, the primary processing unit is a bulk material crusher
having a crushing chamber.25
[013] In any embodiment, the crusher is selected from a jaw crusher, a cone crusher
and an impact crusher.
[014] In any embodiment, the mobile bulk material processing apparatus comprises30
a pivot actuator module mounted between the main frame and the feedstation
5
frame to controllably pivot the feedstation frame in an arc between the
operating position and non-operating position.
[015] In any embodiment, the pivot actuator module comprises a fluidic ram
(hydraulic or pneumatic) disposed on each side of the apparatus, each fluidic5
ram being coupled at one end to the main frame and at the other end to the
feedstation frame.
[016] In any embodiment, the pivot actuator module is configured to pivot the
feedstation frame to a non-operating position that is disposed at an angle Ɵ of10
10° to 30° to the operating position.
[017] In any embodiment, the feedstation frame is disposed substantially
horizontally when in the operating position.
15
[018] In any embodiment, the apparatus comprises a locking module to lock the
feedstation frame in a pivoted non-operating position. Generally, the locking
module comprises two locking units, one disposed on each side of the
apparatus.
20
[019] In any embodiment, the locking module is configured to lock the feedstation
frame in a plurality of non-operating positions.
[020] In any embodiment, the locking module comprises a main frame locking
aperture in the main frame, a feedstation frame locking aperture in the25
feedstation frame positioned to overlap the mainframe locking aperture in the
main frame when the feedstation is in a non-operating position, and optionally
a locking pin configured to pass through the first and second apertures to lock
the feedstation frame in a pivoted position relative to the main frame.
30
6
[021] In any embodiment, the main frame comprises a first main frame locking
aperture and a second main frame locking aperture disposed above the first
main frame locking aperture configured to lock the feedstation frame in two
non-operating positions.
5
[022] In any embodiment, the or each main fame locking aperture is provided on an
upstanding locking arm, and wherein the feedstation frame comprises a recess
configured to receive the locking upright and comprising the feedstation
frame aperture.
10
[023] In any embodiment, the rearward end of the feedstation frame is pivotably
connected to the rear of the main frame by a pivot joint comprising a pivot
pin.
[024] In any embodiment, the rearward end of the feedstation frame is pivotably15
connected to the main frame by a pivot joint comprising a first pivot joint part
disposed on the main frame comprising a cylindrical pivot pin housing, a
second pivot joint part comprising apertures on the feedstation frame that
align with the cylindrical pivot pin housing, and a pivot pin.
20
[025] In any embodiment, the first pivot joint part disposed on the main frame
comprises a pair of spaced apart flange sections supporting the cylindrical
pivot pin housing, each having a slanted section that extends forwardly and
downwardly away from the pivot pin housing, wherein the second pivot joint
part comprises locking apertures disposed forwardly of the cylindrical pivot25
pin housing to receive a second locking pin when the feedstation is pivoted
into the non-operating position.
[026] In another aspect, the invention provides a method of operating a mobile bulk
material processing apparatus according to the invention, comprising the step30
of pivotably actuating the feedstation frame in an arc from the operating
7
position in which the discharge end of the conveyor overlaps the bulk material
inlet of the primary processing unit to a non-operating position in which the
discharge end of the conveyor is disposed rearwardly and upwardly of the
crushing chamber.
5
[027] In any embodiment, the method comprises uncoupling the primary processing
unit from the main frame and lifting the primary processing unit upwardly
away from the main frame.
[028] In any embodiment, the method comprises accessing or performing10
maintenance on or replacing difficult to access parts of the apparatus that are
accessible as a result of the pivotable actuation of the feedstation frame into
the non-operating position.
[029] In any embodiment, the difficult to access parts are selected from jaw wedge15
bolts, rubber seals, chute liners and the underscreen mesh.
[030] In any embodiment, the mobile bulk material processing apparatus comprises
a pivot actuator module, in which the step of pivotably actuating the
feedstation frame in an arc from the operating position to the non-operating20
position comprises actuation of the pivot actuator module.
[031] In any embodiment, the primary processing unit is a crusher chamber.
[032] In any embodiment, the primary processing unit is a jaw crusher chamber.25
[033] Other aspects and preferred embodiments of the invention are defined and
described in the other claims set out below.
30
BRIEF DESCRIPTION OF THE FIGURES
8
[034] FIG. 1 is a side elevational view of part of a mobile bulk material processing
apparatus according to the invention showing the feedstation and a jaw
crusher.
5
[035] FIG.2 is a detailed side elevational view of the forward end of the bulk
material feeder overlapping the bulk material inlet of the primary processing
unit which in this case is a jaw crusher.
[036] FIG. 3 is a plan view from above of the forward end of the bulk material10
feeder overlapping the bulk material inlet of the jaw crusher.
[037] FIG. 4 is a side elevational view of part of a mobile bulk material processing
apparatus of Figure 1 in a tilted non-operating position.
15
[038] FIG.5 is a detailed side elevational view of the forward end of the bulk
material feeder and the bulk material inlet of the jaw crusher when the
feedstation is in a tilted non-operating position.
[039] FIG. 6 is a plan view from above of the forward end of the bulk material20
feeder and the bulk material inlet of the jaw crusher when the feedstation is
in a tilted non-operating position.
[040] FIG. 7a is a sectional perspective view of the feedstation frame pivoted
upwardly in a non-operating position and showing the actuation ram coupled25
between the main frame and the feedstation frame in an extended position.
[041] FIG. 7b is a sectional perspective view of the feedstation frame in an
operating position and prior to pivoting and showing the actuation ram in a
retracted position.30
9
[042] FIG. 8a is a side elevation view of the rear of the mainframe showing the
locking arm of the locking module and the mainframe pivot mounting.
[043] FIG. 8b is a sectional view of the locking arm showing the two mainframe
locking apertures.5
[044] FIG. 8c is a perspective partly sectional view showing the feedstation frame
in a pivoted non-operating position with the upper mainframe locking
apertures aligned with the feedstation frame locking apertures and a locking
pin extending through the apertures to lock the feedstation frame in the second10
non-operating position.
DETAILED DESCRIPTION OF THE INVENTION
15
[045] All publications, patents, patent applications and other references mentioned
herein are hereby incorporated by reference in their entireties for all purposes
as if each individual publication, patent or patent application were specifically
and individually indicated to be incorporated by reference and the content
thereof recited in full.20
[046] Where used herein and unless specifically indicated otherwise, the following
terms are intended to have the following meanings in addition to any broader
(or narrower) meanings the terms might enjoy in the art:
25
[047] Unless otherwise required by context, the use herein of the singular is to be
read to include the plural and vice versa. The term "a" or "an" used in relation
to an entity is to be read to refer to one or more of that entity. As such, the
terms "a" (or "an"), "one or more," and "at least one" are used interchangeably
herein.30
10
[048] As used herein, the term "comprise," or variations thereof such as "comprises"
or "comprising," are to be read to indicate the inclusion of any recited integer
(e.g., a feature, element, characteristic, property, method/process step or
limitation) or group of integers (e.g., features, element, characteristics,
properties, method/process steps or limitations) but not the exclusion of any5
other integer or group of integers. Thus, as used herein the term "comprising"
is inclusive or open-ended and does not exclude additional, unrecited integers
or method/process steps.
[049] As used herein, the term “bulk material primary processing unit” primarily10
refers to a bulk material crusher such as a jaw crusher, cone crusher, or impact
crusher, the details of which will be known to a person skilled in the art.
However, the term is not intended to be restricted to crushers and may include
other bulk material processing units.
15
[050] As used herein the term “bulk material feeder” refers to a part of the
feedstation that conveys bulk material from a feedstation to a bulk material
inlet of the primary processing unit (which in most cases will be a crushing
inlet of a crusher which feeds into a crushing chamber). The feeder is usually
a vibrating feeder. The feeder typically comprises a screen. The feedstation20
may also include a diverter chute under the feeder to receive material from
the feeder and convey it to a specific path.
[051] As used herein, the term “difficult to access parts” of the apparatus of the
invention refers to parts of the apparatus that are inaccessible or difficult to25
access when the apparatus is in an operating position but that are accessible
as a result of the feedstation frame being tilted upwardly and rearwardly in an
arc to the non-operating position. The parts include, for example, jaw wedge
bolts, rubber seals, chute liners and the underscreen mesh.
Exemplification30
11
[052] The invention will now be described with reference to specific Examples.
These are merely exemplary and for illustrative purposes only: they are not
intended to be limiting in any way to the scope of the monopoly claimed or
to the invention described. These examples constitute the best mode currently
contemplated for practicing the invention.5
Equivalents
[053] The foregoing description details presently preferred embodiments of the
present invention. Numerous modifications and variations in practice thereof10
are expected to occur to those skilled in the art upon consideration of these
descriptions. Those modifications and variations are intended to be
encompassed within the claims appended hereto.
[054] Referring to the drawings and initially to Figures 1 to 5, there is illustrated a15
mobile bulk material processing apparatus according to the invention and
indicated generally by the reference numeral 1. The apparatus comprises a
main frame 2 having a front part 3 and a rear part 4, and a bulk material
primary processing unit 5 detachably attached to the front part of the main
frame and comprising a bulk material inlet 6. In the embodiment described,20
the primary processing unit is a jaw crusher having a crusher housing 8, a
fixed jaw 9, a swing jaw 10, and a flywheel 11 attached to a motor (not
shown). It will be appreciated that the crusher may also be a cone crusher or
an impact crusher. The jaw crusher is a conventional jaw crusher and will not
be described in any further detail herein other than to say that it is detachable25
mounted to the main fame to allow it to be uncoupled from the main frame
and removed.
[055] The apparatus 1 also includes tracks 13, once mounted to each side of the
main frame and powered by a motor (not shown), that allow the apparatus to30
be moved.
12
[056] The apparatus 1 also comprises a bulk material feedstation 15 to feed bulk
material to the primary processing unit 5. The feedstation 15 comprises a
feedstation frame 16 connected to the rear part 4 of the main frame 2 and a
bulk material feeder, in this case a vibrating feeder 17, connected to the5
feedstation frame, the vibrating feeder 17 having a rearward feed end 18 to
receive bulk material from e.g., an excavator and a frontward discharge end
19 that overlaps the bulk material inlet 6 of the jaw crusher 5.
[057] A rearward end 25 of the feedstation frame 16 is pivotably connected to the10
rear part 4 of the main frame 2 by means of a pivot joint 26. This arrangement
allows for pivotable actuation of the feedstation frame 16 in an arc from an
operating position illustrated in Figures 1 to 3 in which the discharge end 19
of the vibrating feeder 17 overlaps the bulk material inlet 6 of the jaw crusher
5 to a non-operating position illustrated in Figures 4 to 6 in which the in which15
the discharge end 19 of the vibrating feeder 17 is disposed rearwardly of the
crushing chamber inlet 6. This is best illustrated in the plan views from above
of Figures 3 and 6 that illustrate how the feedstation is moved so that it no
longer overlaps the crusher inlet, thus allowing vertical clearance above the
crusher from the crusher to be lifted away from the apparatus. As mentioned20
above, this may be performed when the weight of the apparatus has to be
reduced to allow it to be legally transported on the roads, or when access is
required to difficult to access parts of the apparatus such as jaw wedge bolts,
rubber seals, chute liners and the underscreen mesh.
25
[058] The rear part 4 of the main frame 2 comprises spaced apart sidewall sections
30 having an upper surface 31. The feedstation frame 16 comprises an upper
beam 33 and a shorter lower beam 34 and connecting beams 35. The vibrating
feeder 17 is mounted across the upper beams 33 for vibrational movement to
move bulk material along the feeder from the rearward feed end 16 to the30
discharge end 19 where it falls into the inlet of the crusher when the
13
feedstation is in the operating position shown in Figures 1 to 3. The lower
beam 34 is pivotably coupled to the upper surface 31 of each sidewall section
30 of the main frame 2 at the pivot joints 26. When in the operating position
shown in Figures 1 to 3, the lower beam 34 is supported on the upper surface
31 of the main frame sidewall sections 30.5
[059] Referring to Figures 7a and 7b, which are partly sectional views, the apparatus
1 includes a pivot actuator module mounted between the main frame 2 and
the feedstation frame 16 to controllably pivot the feedstation frame in an arc
between the operating position and non-operating position. The pivot10
actuation module comprises a hydraulic ram 40 mounted at an upper end 41
to the lower beam 34 and a lower end 42 to the sidewall section 30 of the
main frame 2. The apparatus has hydraulic rams 40 on each side of the main
frame to pivot the feedstation between the operating and non-operating
positions shown in Figures 7b and 7a, respectively. Referring to Figure 7a,15
each hydraulic ram is mounted within a ram housing 44. In use, the
feedstation frame is generally horizontal when it is resting on the main frame
and is disposed at an angle of about 20° to the supporting surface 31of the
main frame 2 when it is pivoted by the pivot actuation module into the non-
operating position. This angle may vary depending on the type of bulk20
material primary processing that forms part of the apparatus.
[060] As shown in Figure 7a, the sidewalls 60 also comprise through apertures 65
that align with the cylindrical pivot pin housing 56 allowing a pivot pin 57 to
be passed through the apertures to pivotably couple the feedstation frame to25
the main frame.
[061] Figure 8a to 8c illustrate the pivot joint and locking module to lock the
feedstation frame in a pivoted non-operating position (as shown in Figure 8c).
30
14
[062] Referring initially to Figures 8a and 8b, there is illustrated a top
surface 31 of one sidewall section 30 of the main frame. A locking arm 50
extends upwardly from the top surface 31 and has two main frame locking
apertures 51 and 52. A first part 54 of the pivot joint 26 is mounted to the
upper surface 31 and comprises spaced apart flange sections 55a and 55b5
supporting a cylindrical pivot pin housing 56, each flange having a slanted
section 55c that extends forwardly and downwardly away from the through
aperture.
[063] Referring to Figure 8c, which shows the feedstation frame pivoted into the10
non-operating position, the lower beam 34 of the feedstation frame 16
comprises spaced apart side walls 60 providing a recess 63 dimensioned to
receive the locking arm 50 and having locking apertures 61 configured to
align with either of the locking apertures 51 or 52 depending on the angle of
the feedstation when it is in the non-operating position. In Figure 8c, the15
feedstation is pivoted to a position in which the locking apertures 61 of the
lower beam 34 align with the upper locking apertures 52 of the locking arm
50. A locking pin 53 is threaded through the apertures to lock the feedstation
frame in the pivoted non-operating position.
20
[064] Additional locking apertures 68 are provided on the lower beam sidewalls 60
adjacent the pivot pin 57. A second locking pin 69 is inserted into the
apertures 68 when the feedstation is pivoted into the desired non-operating
position, where it is supported by the respective slanted sections 55c of the
flange sections 55a and 55b.25
[065] In use, when the apparatus has to be transported, the crusher may be removed.
This involves pivotably actuating the feedstation frame in an arc from the
operating position in which the discharge end of the conveyor overlaps the
bulk material inlet of the primary processing unit to a non-operating position30
15
in which the discharge end of the conveyor is disposed rearwardly and
upwardly of the crushing chamber.
[066] The crusher is then uncoupled from the main frame and raised with a crane
away from the main frame. The apparatus without the crusher may then be
transported separately from the crusher.5
[067] In an alternative use, the feedstation may be pivoted into the non-operating
position to allow access to difficult to access parts of the apparatus, for
example jaw wedge bolts, rubber seals, chute liners and the underscreen
mesh.10
Equivalents
[068] The foregoing description details presently preferred embodiments of the
present invention. Numerous modifications and variations in practice thereof15
are expected to occur to those skilled in the art upon consideration of these
descriptions. Those modifications and variations are intended to be
encompassed within the claims appended hereto.
16
CLAIMS
WE CLAIM:-
1. A mobile bulk material processing apparatus (1) comprising:
5
b. a main frame (2) having a front part (3) and a rear part (4);
c. a bulk material primary processing unit (5) detachably attached to
the front part of the main frame and comprising a bulk material inlet
(6); and10
d. a feedstation (15) to feed bulk material to the primary processing
unit (5), the feedstation comprising a feedstation frame (16)
connected to the rear part (4) of the main frame (2) and a bulk
material feeder (17) connected to the feedstation frame, the bulk15
material feeder having a rearward feed end (18) to receive bulk
material and a frontward discharge end (19) that overlaps the bulk
material inlet (6) of the primary processing unit (5),
characterised in that:20
a rearward end (25) of the feedstation frame (16) is pivotably connected
to the main frame (2) for pivotable actuation of the feedstation frame in
an arc from an operating position in which the discharge end (19) of the
bulk material feeder (17) overlaps the bulk material inlet (6) of the25
primary processing unit (5) to a non-operating position in which the
discharge end (19) of the bulk material feeder (17) is disposed
rearwardly of the bulk material inlet (6) to allow the primary processing
unit to be vertically lifted away from the main frame.
30
17
2. A mobile bulk material processing apparatus (1) according to Claim 1, in
which the primary processing unit (5) is a bulk material crusher having a
crushing chamber.
3. A mobile bulk material processing apparatus (1) according to Claim 1 or 2,5
comprising a pivot actuator module mounted between the main frame (2) and
the feedstation frame (16) to controllably pivot the feedstation frame in an arc
between the operating position and non-operating position.
4. A mobile bulk material processing apparatus (1) according to Claim 3, in10
which the pivot actuator module comprises a fluidic ram (40) disposed on each
side of the apparatus, each hydraulic ram being coupled at one end to the main
frame (2) and at the other end to the feedstation frame (16).
5. A mobile bulk material processing apparatus (1) according to Claim 3 or 4,15
in which the pivot actuator module is configured to pivot the feedstation frame
(16) to a non-operating position that is disposed at an angle Ɵ of 10° to 30° to
the operating position.
6. A mobile bulk material processing apparatus (1) according to any preceding20
Claim, in which the feedstation frame (16) is disposed substantially horizontally
when in the operating position.
7. A mobile bulk material processing apparatus (1) according to any preceding
Claim, in which the apparatus comprises a locking module to lock the25
feedstation frame (16) in a pivoted non-operating position.
8. A mobile bulk material processing apparatus (1) according to Claim 7, in
which the locking module is configured to lock the feedstation frame (16) in a
plurality of non-operating positions.30
18
9. A mobile bulk material processing apparatus (1) according to Claim 7 or 8,
in which the locking module comprises a main frame locking aperture (51, 52)
in the main frame (2), a feedstation frame locking aperture (61) in the
feedstation frame (16) positioned to overlap the mainframe locking aperture in
the main frame when the feedstation is in a non-operating position, and a5
locking pin (53) configured to pass through the locking apertures to lock the
feedstation frame in a pivoted position relative to the main frame.
10. A mobile bulk material processing apparatus (1) according to Claim 9, in
which main frame (2) comprises a first main frame locking aperture (51) and a10
second main frame locking aperture (52) disposed above the first main frame
locking aperture configured to lock the feedstation frame (16) in either of two
non-operating positions.
11. A mobile bulk material processing apparatus (1) according to Claim 9 or 10,15
in which the main fame locking aperture (51, 52) is provided on an upstanding
locking arm (50), and wherein the feedstation frame (16) comprises a recess
(63) configured to receive the locking arm (50).
12. A mobile bulk material processing apparatus (1) according to any preceding20
Claim, in which the rearward end (25) of the feedstation frame (16) is pivotably
connected to the main frame (2) by a pivot joint (26) comprising a first pivot
joint part (54) disposed on the main frame comprising a cylindrical pivot pin
housing (56), a second pivot joint part (58) comprising apertures (65) on the
feedstation frame (16) that align with the cylindrical pivot pin housing (56), and25
a pivot pin (57).
13. A mobile bulk material processing apparatus (1) according to Claim 12, in
which the first pivot joint part (54) disposed on the main frame comprises a pair
of spaced apart flange sections (55a, 55b) supporting the cylindrical pivot pin30
housing (56), each having a slanted section (55c) that extends forwardly and
19
downwardly away from the pivot pin housing (56), wherein the second pivot
joint part (58) comprises locking apertures (68) disposed forwardly of the
cylindrical pivot pin housing (56) to receive a second locking pin (69) when the
feedstation is pivoted into the non-operating position.
5
14. A method of operating a mobile bulk material processing apparatus
according to any of Claims 1 to 13, comprising the step of pivotably actuating
the feedstation frame in an arc from the operating position in which the
discharge end of the conveyor overlaps the bulk material inlet of the primary
processing unit to a non-operating position in which the discharge end of the10
conveyor is disposed rearwardly and upwardly of the crushing chamber inlet to
allow the primary processing unit to be vertically lifted away from the main
frame.
15. A method according to Claim 14 comprising uncoupling the primary15
processing unit from the main frame and lifting the primary processing unit
upwardly away from the main frame.
16. A method according to Claim 14 or 15 comprising performing maintenance
on difficult to access parts of the apparatus that are accessible as a result of the20
pivotable actuation of the feedstation frame into the non-operating position.
17. A method according to any of Claims 14 to 16, in which the mobile bulk
material processing apparatus comprises a pivot actuator module, in which the
step of pivotably actuating the feedstation frame in an arc from the operating25
position to the non-operating position comprises actuation of the pivot actuator
module.
18. A method according to any of Claim 14 to 17, in which the primary
processing unit is a crusher chamber.30
20
19. A method according to Claim 18, in which the primary processing unit is a
jaw crusher chamber.