Crushing plant for working inert material with a mobile conveyor belt

Abstract

The present invention relates to a arushing plant (1) for working inert material with a mobile conveyor belt, comprising a frame (2), a conveyor belt (7) mainly extending along a longitudinal direction (A-A) between an input portion (7a), adapted to receive inert material, and an opposite evacuation portion (7b) adapted to the evacuation of inert material from the crushing plant (1), wherein the conveyor belt (7) is connected to the frame (2) and movable with respect to the frame (2) and moving away from / close to a bearing portion (3a) on the floor of the plant along a trajectory of movement (X) in such a way as to reduce the encumbrances in the proximity of the underbody of the frame (2).

Description

Technical Field

[0001] The present invention relates to a crushing plant for working inert material with a mobile conveyor belt. Specifically, the crushing plant is adapted to crush inert material, sieving and ejecting such a material by means of an improved and mobile conveyor belt. For example, the crushing plant is of the type distributed by the company RIMAC TECHNOLOGY SA under the name MOBY 645 TRANSFORMER, MOBY 850 TRANSFORMER, MOBY 960 TRANSFORMER, MOBY 1160 TRANSFORMER, MOBY 1265 TRANSFORMER, MOBY 1180 TRANSFORMER, MOBY 1380 TRANSFORMER.Background Art

[0002] Crushing plants are known in the state of the art. Inert material crushing plants are, in particular, mainly divisible into two categories of plants: mobile plants and stationary plants.

[0003] The known mobile crushing plants comprise a frame and transport means connected to the frame and defining a bearing portion of the plant to the ground. The transport means are known per se and may comprise a set of tracks or a set of tires to move the plant. The mobile crushing plants are then able to move independently, such as from a transport device to the work site.

[0004] On the other hand, the known stationary crushing plants do not comprise transport means and the bearing portion to the ground is stationary and does not allow independent movement. Stationary crushing plants can only be moved and positioned at the work site by means of an external transport device and not independently.

[0005] Known plants comprise at least one material loading unit, generally a hopper, and one crushing unit coupled together and attached to the plant frame. In detail, the hopper is placed upstream of the crushing unit along one direction of development of the plant. Examples of crushing units may be a jaw crusher, a bump crusher and a cone crusher.

[0006] More specifically, the hopper is configured to receive the material to be worked and crushed and to convey the material to be worked to the crushing unit located downstream of the loading unit.

[0007] The crushing unit is configured to receive the material to be worked from the hopper, to crush the material to be worked resulting in a worked material, and to convey the worked material to a conveyor belt connected to the frame. Normally, the crushing unit is placed between the hopper and the conveyor belt along the direction of development of the plant.

[0008] Specifically, the conveyor belt is developed between an input portion, adapted to receive the worked material from the crushing unit, and an evacuation portion. The conveyor belt is configured to move the worked material from the input portion to the evacuation portion. The conveyor belt is also switchable between a working configuration, so that it protrudes sideways from the crushing unit, and a transport configuration, wherein the belt is folded back on itself so as to reduce the overall dimensions of the plant during the movement thereof.

[0009] In addition, the crushing plant may comprise a magnetic separator associated with the conveyor belt and configured to identify and remove the metallic elements from the flow of worked material carried by the conveyor belt during use.

[0010] One drawback of known crushing plants is that independent plant movement can only occur in areas free of large debris. In fact, it is not uncommon for debris to accumulate at the work site in the environment surrounding the plant that would risk blocking the movement of the plant, for example, getting stuck between the set of tracks, at the lower portion of the conveyor belt or between the frame and the tracks or tires, or damaging the plant components.Description of the Invention

[0011] Thus, the Applicant has found that moving the conveyor belt away from the frame allows reducing the overall dimensions in the proximity of the underbody of the frame by ensuring that debris cannot impact the lower portion of the conveyor belt and / or may pose a problem for the plant movement.

[0012] A further object of this description is to provide a more versatile crushing plant and able to move in different types of work environments.

[0013] An additional object of this description is to provide a crushing plant that enables faster maintenance of the plant parts.

[0014] A further object of the present invention is to provide a more efficient crushing plant and which allows reducing downtime.

[0015] The aforementioned objects are achieved by the crushing plant according to claim 1, comprising a conveyor belt that is mobile with respect to the frame.Brief Description of the Drawings

[0016] Some embodiments and aspects of the invention will be described below with reference to the attached drawings, provided for illustrative purposes only and therefore not limiting, wherein: Figures 1 and 2 are perspective views of a crushing plant in different configurations of use in accordance with this invention, Figure 3 is a side view of the plant in Figure 2, Figure 4 is a perspective view of a detail of the plant in Figure 2, Figures 5 and 6 are perspective views of the plant in Figure 2 with some elements hidden to better show others, Figure 7 is a side view of a detail of the plant in Figure 2 with some elements hidden, Figure 8 is a perspective view of a detail of the crushing plant in accordance with this description. Embodiments of the Invention

[0017] In accordance with this description and the attached figures, reference numeral 1 denotes a crushing plant for working inert material with a mobile conveyor belt, and thus perfected.Crushing plant

[0018] Specifically, the crushing plant 1 is adapted to crush and screen inert materials or waste materials. For example, materials may comprise construction and demolition materials, excavated soil and rocks, stones, sand, asphalt, gravel, steel mill slag, plastics, paper, wood, glass.

[0019] The crushing plant 1 comprises a frame 2 and may comprise transport means 3 connected to the frame 2. The crushing plant 1 has a bearing portion 3a which can be defined at least partly by the transport means 3. In detail, the crushing plant 1 is mobile and configured to move in a work environment when in use. The transport means 3 are configured to move the plant and may comprise a set of tracks or a set of tires that define the bearing portion 3a of the crushing plant. In other words, the crushing plant 1 is mobile and configured to contact the ground at the bearing portion 3a.

[0020] The crushing plant 1 has a direction of development B-B. The main direction of development B-B of the plant can be a linear direction or a curve of any shape, e.g. L-shaped. In detail, the frame 2 extends along the main direction of development B-B of the plant.Loading unit

[0021] According to one aspect, the crushing plant 1 comprises, in addition, a loading unit 4 connected to the frame 2 and configured to receive material, especially material to be worked / processed. Specifically, the loading unit 4 comprises a hopper 5 and may, in addition, comprise a respective screening unit associated with the hopper 5. In detail, the loading unit 4 is configured to receive the material to be worked from a feeding unit. The feeding unit may comprise a machine for surface excavation works, transporting and unloading inert material such as, e.g., a bulldozer, a mechanical shovel or an excavator.

[0022] The screening unit of the loading unit 4 can be adapted to a phase of first sieving of the material to be worked, thus separating a first fraction from the material to be worked.Crushing unit

[0023] In one embodiment, the crushing plant 1 comprises a crushing unit 6 connected to the frame 2. The crushing unit 6 is configured to receive at input the material to be worked / processed or sieved material and to send at output the worked / processed material. In detail, the crushing unit 6 is configured to carry out a phase of receiving the material to be worked or sieved, preferably from the loading unit 4, and a phase of conveying and feeding the worked material to one or more conveyor belts. The crushing unit is configured to carry out a process or a phase of work on the material to be worked to obtain a worked material. The working phase comprises one or more of the sub-phases: reducing an average granular size of the material received at input, carrying out a second sieving of the material received at input. Conveyor belt

[0024] The crushing plant 1 comprises a conveyor belt 7 connected to the frame 2. The conveyor belt 7 mainly extends along a longitudinal direction A-A between an input portion 7a and an opposite evacuation portion 7b. The input portion 7a is adapted to receive material, especially material worked by the crushing unit 6. The evacuation portion 7b is adapted to evacuate the inert material from the crushing plant 1 and to convey the inert material at output. The conveyor belt 7 is configured to move the inert material from the input portion 7a to the evacuation portion 7b.

[0025] According to one aspect, the conveyor belt 7 is switchable between a working configuration and a transport configuration. In particular, the conveyor belt 7 comprises sections 14, 15 connected to each other in a rotatable manner, e.g., by means of pivoting elements. For example, the sections 14, 15 are connected by means of pins defining an axis of rotation around which at least one of the sections is rotatable. In more detail, in the working configuration, the sections 14, 15 are arranged substantially aligned along a straight longitudinal direction, such as e.g. shown in Figure 2. In the transport configuration, the sections 14, 15 are moved close to each other, thus reducing a lateral extension of the conveyor belt 7 with respect to the frame 2, such as e.g. shown in Figure 1. In other words, the overall dimension of the conveyor belt 7 laterally to the frame 2 is reduced in the switch from the working configuration to the transport configuration to facilitate the movement of the crushing plant 1.

[0026] In one embodiment, the loading unit, the crushing unit and the conveyor belt are placed along the direction of development B-B of the plant. In detail, the loading unit is located upstream of the crushing unit. The conveyor belt is positioned along the direction of development downstream of the crushing unit. In other words, the crushing unit is placed between the loading unit and the conveyor belt along the direction of development B-B of the plant 1.Driving unit

[0027] According to one aspect, the crushing plant comprises a driving unit 10 associated with the frame and with the transport means. The driving unit 10 is configured to operate the transport means for moving the plant.

[0028] In detail, the driving unit 10 is associated with the loading unit, with the crushing unit 6 and with the conveyor belt 7. The driving unit 10 is configured to operate one or more of the loading unit, the crushing unit or the conveyor belt.Magnetic separator

[0029] In one embodiment, the crushing plant 1 comprises a separator 8 associated with the conveyor belt and connected to the frame 2. Specifically, the separator 8 is arranged along the main direction of development B-B of the plant 1 downstream of the crushing unit 6. The separator 8 is configured to detect and remove unwanted materials from the worked material. For example, the separator 8 is of the type of a magnetic separator and is suitable for the identification, detection and removal of the metallic material from the worked material.

[0030] In detail, the separator 8 is positioned in the proximity of the conveyor belt 7 so as to analyze the worked material as it is transported from the input portion 7a to the evacuation portion 7b of the conveyor belt. More specifically, the separator is positioned facing a transport surface of the conveyor belt. The separator can be at a predefined minimum distance from the transport surface, wherein the minimum distance is selected so as to optimize the process of detecting and removing the unwanted material from the flow of worked material.Spraying system

[0031] According to one aspect, the crushing plant 1 comprises a spraying system 9 associated with the loading unit 4. The spraying system 9 is connected to the loading unit, particularly to the hopper 5 or to the crushing unit 6 and is configured to reduce the volatility of a volatile component of the material to be worked. In detail, the spraying system is suitable for the emission of water mist toward the material to be worked so as to reduce the volatility of the volatile component of the material to be worked.Control unit

[0032] According to one aspect, the crushing plant comprises a control unit in signal communication with one or more of the loading unit 4, the crushing unit 6, the driving unit 10, the conveyor belt 7, the transport means 3, the separator 8 or the spraying system 9. In detail, the control unit is configured to command the loading unit 4 to carry out a phase of feeding the inert material to be worked to the crushing unit 6. In more detail, the control unit is in signal communication with the screening unit to command the screening unit to carry out a phase of first sieving of the material to be worked, thus separating a first fraction from the material to be worked.

[0033] The control unit can also be configured to command the spraying system 9 to carry out a phase of emitting a spraying component, e.g. water, toward the material to be worked so as to reduce the volatility of the volatile component of the material to be worked.

[0034] In addition, the control unit is configured to command the crushing unit 6 to carry out one or more phases of: receiving the material to be worked or sieved, preferably from the loading unit 4, carrying out a work process on the material to be worked to obtain a worked material, conveying the worked material to one or more conveyor belts.

[0035] The phase of carrying out a work process comprises one or more of the sub-phases: reducing an average granular size of the material received at input, making a second sieving of the material received at input.

[0036] The control unit can also be configured to command the conveyor belt 7 to carry out one or more phases of: receiving worked material, preferably from the crushing unit, moving the worked material from the input portion 7a to the evacuation portion 7b.

[0037] According to one aspect, the control unit is configured to command the separator 8 to carry out one or more phases of: analyzing the worked material, detecting an unwanted material in the worked material, preferably detecting a metallic material, removing the unwanted material from the worked material.

[0038] According to a further aspect, the control unit is configured to command the driving unit 10 to carry out a phase of operating the transport means 3 and moving the crushing plant 1.Mobile conveyor belt crushing plant

[0039] In accordance with this invention, the conveyor belt 7 is connected to the frame 2 and is movable with respect to the frame 2 and away from and / or close to the bearing portion 3a along a trajectory of movement X in such a way as to reduce the overall dimensions in the proximity of the underbody of the frame 2. In detail, the plant 1 comprises tracks or tires adapted to contact the ground and to the movement of the plant. The bearing portion 3a is defined at least partly by the tracks or tires.

[0040] Advantageously, moving the conveyor belt 7 away from the frame 2 and from the bearing portion 3a allows reducing the overall dimensions of the conveyor belt in the proximity of the frame and of the bearing portion 3a of the crushing plant. Reducing the overall dimensions in the proximity of the frame and of the bearing portion 3a allows the crushing plant to move and be displaced to working environments where debris is present, thus reducing the chances that the debris can impact the conveyor belt thus causing damage to the crushing plant 1.

[0041] In one embodiment, the conveyor belt 7 is movable away from / close to the bearing portion 3a along the trajectory of movement X comprising a vertical component and / or a horizontal component.

[0042] In detail, the trajectory of movement X can have a curve of any shape such that the conveyor belt is mobile when moving away from / close to the bearing portion 3a. For example, the trajectory of movement X can be a straight trajectory or a curve.

[0043] The trajectory of movement X can be a vertical straight trajectory, a horizontal straight trajectory or along a diagonal trajectory, such as e.g. shown in Figure 5. The trajectory may be a curve, such as e.g. an arc of a circumference.

[0044] In other words, if the trajectory of movement X comprises a vertical component, the trajectory can be vertical and the conveyor belt is configured to move vertically close to and away from the bearing portion 3a.

[0045] If the trajectory of movement X comprises a horizontal component, the trajectory can be horizontal and the conveyor belt is configured to move away from and close to the bearing portion 3a horizontally.

[0046] If the trajectory has both a vertical component and a horizontal component, the trajectory may be, e.g., a diagonal trajectory and the conveyor belt is configured to move away from and close to the bearing portion 3a diagonally.

[0047] According to one aspect, as shown in Figures 5-7, the frame 2 comprises a guide 2a which at least partly defines the trajectory of movement X. In detail, the frame 2 comprises a pair of mutually mirrored guides that at least partly define the trajectory of movement X. In more detail, each guide of the pair of guides is defined at a respective and separate lateral section of the frame 2.

[0048] In one embodiment, the conveyor belt 7 is connected to the frame 2 substantially at the guide 2a. Specifically, the conveyor belt 7 is connected to the frame 2 at each guide of the pair of guides.

[0049] In detail, the conveyor belt 7 is movable along the guide 2a of the frame 2. The conveyor belt 7 is configured to slide at least partly along the guide 2a.

[0050] In one embodiment, the crushing plant 1 comprises a movement system 11. The conveyor belt 7 is connected to the frame 2 by means of the movement system 11. In detail, the input portion 7a of the conveyor belt 7 is connected to the guide 2a of the frame 2 by means of the movement system 11. In other words, the movement system 11 connects the conveyor belt 7 to the frame 2 in the proximity of the input portion 7a of the conveyor belt 7.

[0051] According to one aspect, the movement system 11 connects the input portion 7a to each of the pair of guides.

[0052] Specifically, the movement system 11 is configured to cause and / or to allow the conveyor belt 7 to move. In more detail, the movement system 11 is configured to cause and / or allow the input portion 7a to slide with respect to the guide 2a of the frame 2 or with respect to each guide of the pair of guides.

[0053] According to one aspect, the movement system 11 comprises one or more cylinders 12. The one or more cylinders 12 may comprise pneumatic cylinders and / or hydraulic cylinders and / or telescopic cylinders. The one or more cylinders 12 may be of a known type. The operation of hydraulic, pneumatic and telescopic cylinders is known to the technician in the field and will not be described in detail here.

[0054] Specifically, the conveyor belt 7 and the frame 2 are connected by means of said one or more cylinders 12. In detail, the movement system 11 comprises a pair of cylinders connected to the frame and to the conveyor belt. Each cylinder of such a pair of cylinders has one end connected to the frame and an opposite end connected to the conveyor belt. Specifically, the rod of each cylinder of such a pair of cylinders is fastened to the conveyor belt 7 and the body of each cylinder is fastened to the frame 2.

[0055] In one embodiment, the one or more cylinders 12 are configured to move the conveyor belt 7 along the guide 2a, when operated. Specifically, when the cylinders 12 are operated and extend, they move conveyor belt 7 away from the frame 2 and from the bearing portion 3a.

[0056] In one embodiment, the movement system 11 comprises one or more sliding elements 13 connected to the conveyor belt 7 and coupled to the guide 2a. The sliding elements 13 are configured to slide along the guide 2a. For example, as shown in Figures 7 and 8, the sliding elements 13 may comprise rollers connected to the conveyor belt and configured to slide along the guide 2a.

[0057] Specifically, the movement system 11 comprises pairs of rollers connected to the conveyor belt 7. The sliding elements 13 may be configured to slide within each guide of the pair of guides.

[0058] According to one aspect, the sliding elements 13 are connected to lateral portions of the conveyor belt in the proximity of the input portion 7a. In detail, the sliding elements 13 comprise two pairs of rollers, wherein each pair of rollers is connected to a respective lateral portion of the conveyor belt 7 and connects the belt to a respective guide of the pair of guides of the frame.

[0059] In a further embodiment, the conveyor belt 7 is switchable between a plurality of positions comprising: a compact position wherein the input portion 7a is at a first distance from the bearing portion 3a of the crushing plant 1, and an extension position wherein the input portion 7a is at a second distance from the bearing portion 3a.

[0060] In other words, the conveyor belt 7 has a compact position wherein the input portion 7a is in the proximity of the bearing portion 3a of the crushing plant. In detail, when the belt is in the compact position, the input portion 7a is located in the proximity of an output of the crushing unit 6 to receive the worked and / or sieved material from the crushing unit 6. In more detail, when the belt is in the compact position, the input portion of the conveyor belt 7 is at a minimum distance from the bearing portion and from the ground.

[0061] In the extension position, the conveyor belt 7 is moved away from the frame 2 and from the bearing portion 3a of the crushing plant. In detail, in the extension position, the input portion 7a of the conveyor belt 7 is moved away from the output of the crushing unit 6.

[0062] For example, in Figure 5, the conveyor belt 7 is shown in a compact position and, in Figures 6 and 7, the conveyor belt 7 is shown in an extension position.

[0063] According to one aspect, the second distance is greater than the first distance. In more detail, the input portion 7a is moved away from the ground as the conveyor belt switches from the compact position to the extension position. The input portion 7a is moved close to the ground as the conveyor belt switches from the extension position to the compact position.

[0064] According to one aspect, the first distance comprises a first vertical component and a first horizontal component, and the second distance comprises a second vertical component and a second horizontal component. In particular, the second vertical component is greater than the first vertical component.

[0065] In other words, the distance in the vertical direction between the input portion 7a of the conveyor belt 7 and the bearing portion 3a increases in the passage from the compact position to the extension position. The height position of the conveyor belt 7 and, in particular, of the input portion 7a increases as the conveyor belt switches from the compact position to the extension position and decreases as the conveyor belt switches from the extension position to the compact position. The vertical component of the distance of the input portion 7a from the bearing portion of the plant increases with the passage from the compact position to the extension position and, vice versa, increases with the passage from the extension position to the compact position.

[0066] For example, the input portion 7a may have a vertical distance from the bearing portion 3a or from the ground of between 20cm and 60cm when the conveyor belt 7 is in the compact position and a vertical distance from the bearing portion or from the ground of between 70cm and 100cm when the conveyor belt is in the extension position.

[0067] According to one aspect, such as that shown in the figures, the conveyor belt 7 is cantilevered from the frame 2. In the passage from the compact position to the extension position, the portion of the conveyor belt cantilevered from the frame increases. In the passage from the extension position to the compact position, the portion of the conveyor belt cantilevered from the frame decreases.

[0068] According to one aspect, the conveyor belt 7 comprises sections 14, 15 connected to each other in a rotatable manner. The sections 14, 15 of the conveyor belt 7 are connected to each other by means of pivoting elements. For example, the sections 14, 15 are connected to each other by means of pins defining an axis of rotation around which at least one of the sections is rotatable.

[0069] Specifically, the conveyor belt 7 may have a first section 14 connected to the frame 2 and a second section 15 connected to the first section 14 by means of pins. The input portion 7a of the conveyor belt can be defined by the first section 14 and the evacuation portion 7b can be defined by the second section 15. The second section 15 can rotate around the axis of rotation defined by one or more connecting pins with the first section 14 of the conveyor belt 7.

[0070] In one embodiment, the conveyor belt 7 is switchable between a working configuration and a transport configuration.

[0071] In the working configuration, the sections 14, 15 are arranged substantially along or parallel to the trajectory of movement X, such as e.g. shown in Figures 2 and 3. In the transport configuration, the sections 14, 15 are moved close to each other, thus reducing a lateral extension of the conveyor belt 7 with respect to the frame 2, such as e.g. shown in Figure 1. In other words, the overall dimensions of the conveyor belt 7 laterally to the frame 2 is reduced in the switch from the working configuration to the transport configuration to facilitate the movement of the crushing plant 1.

[0072] According to one aspect, at least one section is configured to rotate around an axis of rotation as the conveyor belt switches from the working configuration to the transport configuration and vice versa.

[0073] The movement system 11 can be configured to move the conveyor belt 7 among the plurality of positions and / or from the working configuration to the transport configuration and vice versa.

[0074] Specifically, the movement system 11 comprises a pair of cylinders 12 configured to move the conveyor belt 7 among the plurality of positions.

[0075] In addition, the movement system 11 may comprise an additional pair of cylinders configured to move the conveyor belt 7 between the working configuration and the transport configuration and vice versa.

[0076] In one embodiment, the control unit is in signal communication with the movement system 11 and configured to: command the movement system 11 to move at least part of the conveyor belt 7 along the trajectory of movement X.

[0077] In detail, the control unit is configured to command the movement system 11 to move the conveyor belt among the plurality of positions and / or to move the conveyor belt from the working configuration to the transport configuration and vice versa. More specifically, the control unit is in signal communication with the cylinders 12 and configured to: command the cylinders 12 to move the conveyor belt 7 among the plurality of positions, and / or command the cylinders 12 to move the conveyor belt 7 from the working configuration to the transport configuration and vice versa.

[0078] In one embodiment, the control unit is configured to command the conveyor belt 7 to transport and move the worked and / or sieved material from the input portion 7a to the evacuation portion 7b.

Claims

1. Crushing plant (1) for working inert material with a mobile conveyor belt, comprising: a frame (2), a conveyor belt (7) mainly extending along a longitudinal direction (A-A) between an input portion (7a), adapted to receive inert material, and an opposite evacuation portion (7b) adapted to the evacuation of inert material from the crushing plant (1), wherein the conveyor belt (7) is connected to the frame (2) and movable with respect to the frame (2) and moving away from / close to a bearing portion (3a) on the floor of the plant along a trajectory of movement (X) in such a way as to reduce the encumbrances in the proximity of the underbody of the frame (2).

2. Crushing plant (1) according to the preceding claim, wherein the conveyor belt (7) is movable close / away along said trajectory of movement (X) comprising a vertical component and a horizontal component, and wherein the plant (1) comprises tracks or tires adapted to contact the floor and to the movement of the plant, the bearing portion (3a) being defined at least partly by the tracks or tires.

3. Crushing plant (1) according to the preceding claim, wherein the frame (2) comprises a guide (2a), the conveyor belt (7) being connected to the frame (2) substantially at the guide (2a), the conveyor belt (7) being movable along the guide (2a) of the frame (2), the guide (2a) defining at least partly the trajectory of movement (X).

4. Crushing plant (1) according to the preceding claim, comprising a movement system (11), the input portion (7a) of the conveyor belt (7) being connected to the guide (2a) of the frame (2) by means of the movement system (11), and wherein the movement system (11) is configured to allow the input portion (7a) to slide with respect to the guide (2a) of the frame (2).

5. Crushing plant (1) according to the preceding claim, wherein the movement system (11) comprises one or more cylinders (12), the conveyor belt (7) and the frame (2) being connected by means of said one or more cylinders (12), the one or more cylinders being configured to move the conveyor belt (7) along the guide (2a) when operated, and / or wherein the movement system (11) comprises one or more sliding elements (13) connected to the conveyor belt (7) and coupled to the guide (2a), the sliding elements (13) being configured to slide along the guide.

6. Crushing plant (1) according to any one of the preceding claims, wherein the conveyor belt (7) is switchable between a plurality of positions comprising: - a compact position wherein the input portion (7a) is at a first distance from the bearing portion (3a) of the crushing plant (1), - an extension position wherein the input portion (7a) is at a second distance from the bearing portion (3a), the second distance being greater than the first distance, and wherein: - the first distance comprises a first vertical component and a first horizontal component, - the second distance comprises a second vertical component and a second horizontal component, the second vertical component being greater than the first vertical component.

7. Crushing plant (1) according to any one of the preceding claims, wherein the conveyor belt (7) comprises sections (14, 15) connected to each other in a rotatable manner, wherein the conveyor belt (7) is switchable between a working configuration and a transport configuration, wherein: - in the working configuration, the sections (14, 15) are arranged substantially along or parallel to the trajectory of movement, - in the transport configuration, the sections (14, 15) are close to each other, thus reducing a lateral extension of the conveyor belt (7) with respect to the frame (2).

8. Crushing plant (1) according to claim 6 or 7, when dependent on claim 4, wherein: - the movement system (11) is configured to move the conveyor belt (7) between the plurality of positions, and / or - the movement system (11) is configured to move the conveyor belt (7) from the working configuration to the transport configuration and vice versa.

9. Crushing plant (1) according to any one of claims 7 to 8, comprising transport means (3) connected to the frame (2), the bearing portion (3a) being defined at least partly by the transport means (3), the transport means (3) being configured to move the crushing plant (1).

10. Crushing plant (1) according to any one of claims 4 to 9, when dependent on claim 4, comprising: a control unit in signal communication with the movement system (11) and configured to: - command the movement system (11) to move at least part of the conveyor belt (7) along the trajectory of movement (X).

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