A method and device suitable for emergency discharge of deep-sea crusher

Abstract

The invention discloses a method and device suitable for emergency discharge of a deep-sea crusher, comprising a crusher, wherein the crusher comprises a crushing roller for crushing materials and a silo for storing the crushed materials, wherein a discharge port connected to the outside of the crusher body is arranged on the silo; when the crusher is in a jammed state, the load of the hydraulic motor increases, and the oil circuit pressure rises; when the oil circuit pressure rises to the closed circuit of the pressure relay, the electric control cabinet is turned on, the solenoid valve is reversed, the oil cylinder assembly is filled with oil, the discharge port is opened, the crushing roller is moved away, and a crushing port is formed, causing the jammed materials to be discharged from the crushing port and the discharge port to the outside of the crusher body; when in a working state, the oil circuit pressure is reduced to a level lower than the closed voltage of the pressure relay, the solenoid valve is reset, the oil cylinder assembly is filled with oil, and the discharge port and the crushing port are closed; the whole process from the crusher being jammed to the restoration of normal operation is automatically controlled, the working efficiency and reliability are greatly improved, and the fatal disadvantage of the whole mining system being paralyzed after the crusher is jammed is overcome.

Description

Technical Field

[0001] The invention relates to the field of underwater operations, and in particular to a method and a device suitable for emergency discharge of a deep-sea crusher. Background Art

[0002] As the development of seabed polymetallic nodules continues to increase, the demand for transporting polymetallic nodules from the seabed to the sea surface is also increasing. Polymetallic nodules vary in size, and existing transportation systems require that the material size has an upper limit. Once the minerals are collected, they must go through the crushing process. There are certain risks in the crushing of polymetallic nodules, which mainly manifests in that the material fed into the crusher exceeds the crusher's own processing capacity, causing the crusher to get stuck, causing the entire mining transportation system to get blocked, and it may also cause the entire mining system to be paralyzed. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a method and device for emergency discharge of a deep-sea crusher which can automatically discharge stuck materials.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A method for emergency discharge of a deep-sea crusher, comprising a crusher, wherein the crusher comprises a crushing roller for crushing materials and a silo for storing the crushed materials, wherein the silo is provided with a discharge port communicating with the outside of the crusher body;

[0006] When the crusher is in a jammed state, the load of the hydraulic motor increases, and the oil circuit pressure rises. When the oil circuit pressure rises to the closed circuit of the pressure relay, the electric control cabinet is turned on, the solenoid valve is reversed, the oil cylinder assembly is filled with oil, the discharge port is opened, and the crushing roller is moved away to form a crushing port, causing the jammed material to be discharged from the crushing port and the discharge port to the outside of the crusher body;

[0007] When in working state, the oil circuit pressure drops below the closing voltage of the pressure relay, the solenoid valve resets, oil enters the cylinder assembly, and the discharge port and crushing port are closed.

[0008] As a further improvement of the above technical solution:

[0009] The oil cylinder assembly includes a discharge cylinder and an anti-stuck cylinder;

[0010] When in a jammed state, oil enters the rod chamber of the discharge cylinder and the jammed sequence valve, the discharge cylinder contracts, and the discharge port opens. At this time, the pressure does not reach the set pressure of the jammed sequence valve, and the jammed sequence valve is in a closed state;

[0011] When the oil circuit pressure reaches the set pressure of the jam sequence valve, the jam sequence valve opens, oil enters the rod chamber of the anti-jamming cylinder, the anti-jamming cylinder contracts, and the crushing port opens.

[0012] The oil in the rodless chamber of the discharge cylinder returns through the one-way valve in the discharge sequence valve and the solenoid valve. When the discharge cylinder contracts to the end position, the oil circuit pressure increases and reaches the set pressure of the stuck sequence valve.

[0013] When in working state, oil enters the rodless chamber of the anti-stuck cylinder and the discharge sequence valve, the anti-stuck cylinder extends outward, and the crushing port is closed. At this time, the pressure does not reach the set pressure of the discharge sequence valve, and the discharge sequence valve is in a closed state;

[0014] When the oil circuit pressure reaches the set pressure of the discharge sequence valve, the discharge sequence valve opens, and the oil enters the rodless chamber of the discharge cylinder, causing the discharge cylinder to extend outward and the discharge port of the silo to close.

[0015] The oil in the rod chamber of the anti-stuck cylinder returns through the one-way valve in the stuck sequence valve and the solenoid valve. When the anti-stuck cylinder extends to the end position, the oil circuit pressure increases and reaches the set pressure of the discharge sequence valve.

[0016] Non-polymetallic nodules are screened by setting the set pressures of the jam sequence valve and the discharge sequence valve.

[0017] A device suitable for emergency discharge of a deep-sea crusher, including the above-mentioned method suitable for emergency discharge of a deep-sea crusher, including a crusher, a hydraulic motor, a solenoid valve, an electric control cabinet, a pressure relay and a cylinder assembly; the crusher includes a crushing roller for crushing materials and a silo for storing the crushed materials, and the silo is provided with a discharge port, which is connected to the outside of the crusher; when the oil circuit pressure reaches the set pressure, the pressure relay is turned on, the electric control cabinet turns on the solenoid valve to switch, and the crushing port formed between the discharge port and the crushing roller is opened through the cylinder assembly.

[0018] The oil cylinder assembly comprises a discharge cylinder and an anti-stuck cylinder. The discharge cylinder is used to control the opening and closing of the discharge port, and the anti-stuck cylinder is used to control the opening and closing of the crushing port.

[0019] The device adapted for emergency discharge of a deep-sea crusher comprises a discharge sequence valve and a jam sequence valve. When the oil circuit pressure reaches the set pressure of the discharge sequence valve and the set pressure of the jam sequence valve, the discharge sequence valve and the jam sequence valve are opened, and oil is supplied to the discharge cylinder and the anti-jamming cylinder.

[0020] The discharge cylinder includes a rod chamber and a rodless chamber, and the anti-stuck cylinder includes a rod chamber and a rodless chamber.

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] The invention provides a method for emergency discharge of a deep-sea crusher. When the crushing roller encounters large and difficult-to-crush materials, the load of the hydraulic motor increases, and the oil circuit pressure increases at this time. When the oil circuit pressure rises to the set pressure of the pressure relay, its contacts are closed, and the solenoid valve electromagnet is turned on through the electric control cabinet to make the solenoid valve switch to the right end state, and the oil cylinder successively supplies oil in the reverse direction to open the discharge port and the crushing port, and automatically discharge the large and difficult-to-crush materials out of the crusher body through the crushing port and the discharge port. At this time, the load of the hydraulic motor decreases, the oil circuit pressure decreases, the pressure relay contacts open, the solenoid valve is reset to the left end state, the oil cylinder successively supplies oil to close the crushing port and the discharge port, and the normal working state is restored. The whole process from the crusher being stuck to the normal working state is automatically controlled without manual intervention, and the working efficiency and reliability are greatly improved, thereby overcoming the fatal disadvantage of the whole mining system being paralyzed after the crusher is stuck, and improving the efficiency of the whole mining system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the internal circuit of the emergency discharge device of the deep-sea crusher according to the present invention.

[0024] Figure 2 It is a schematic diagram of sequential functional conduction of the crusher emergency discharge device of the present invention.

[0025] Figure 3 It is a schematic diagram of the sequential functional conduction diagram of the crusher emergency discharge device of the present invention.

[0026] The symbols in the figure represent:

[0027] 1. Hydraulic motor; 2. Solenoid valve; 3. Electric control cabinet; 4. Discharge cylinder; 5. Discharge sequence valve; 6. Anti-stuck cylinder; 7. Stuck sequence valve. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Figures 1 to 3 An embodiment of the method and device for emergency discharge of a deep-sea crusher according to the present invention is shown, comprising a crusher, the crusher comprising a crushing roller for crushing materials and a silo for storing the crushed materials, the silo being provided with a discharge port connected to the outside of the crusher body;

[0030] When the crushing roller of the crusher is stuck, the load of the hydraulic motor 1 increases, and the oil circuit pressure rises. When the oil circuit pressure rises to the closed circuit of the pressure relay, the electric control cabinet 3 is turned on, the solenoid valve 2 is switched to the right end state, and the discharge cylinder 4 and the anti-stuck cylinder 6 successively reverse the oil flow to open the discharge port and the crushing port of the silo. The opening of the crushing port means that two or more crushing rollers are separated to form a crushing port connected to the discharge port, and the stuck material falls into the discharge port through the crushing port and is discharged from the crusher body;

[0031] When in working state, the oil circuit pressure drops below the closing voltage of the pressure relay, the solenoid valve 2 is reset, the oil cylinder assembly is filled with oil, and the discharge port and the crushing port are closed.

[0032] The method is suitable for emergency discharge of deep-sea crushers. When the crushing roller encounters large and difficult-to-crush materials, the load of the hydraulic motor 1 increases, and the oil circuit pressure increases at this time. When the oil circuit pressure rises to the set pressure of the pressure relay, its contacts are closed, and the solenoid valve 2 electromagnet is turned on through the electric control cabinet 3, so that the solenoid valve 2 is switched to the right end state, and the oil cylinder successively reverses the oil flow, opens the discharge port and the crushing port, and automatically discharges the large and difficult-to-crush materials out of the crusher body through the crushing port and the discharge port. At this time, the load of the hydraulic motor 1 decreases, the oil circuit pressure decreases, the pressure relay contacts open, the solenoid valve 2 is reset to the left end state, the oil cylinder successively flows oil, closes the crushing port and the discharge port, and resumes normal working state; the whole process from the crusher being stuck to resuming normal working is automatically controlled without manual intervention, and the working efficiency and reliability are greatly improved, thereby overcoming the fatal disadvantage of the whole mining system being paralyzed after the crusher is stuck, and improving the efficiency of the whole mining system.

[0033] In this embodiment, when in a jammed state, oil enters the rod chamber of the discharge cylinder 4 and the jam sequence valve 7, the discharge cylinder 4 contracts first, and the discharge port of the silo is opened. At this time, since the pressure has not reached the set pressure of the jam sequence valve 7, the jam sequence valve 7 is in a closed state; the oil in the rodless chamber of the discharge cylinder 4 returns through the one-way valve in the discharge sequence valve 5 and the solenoid valve 2, and when the discharge cylinder 4 contracts to the end position, the discharge cylinder 4 stops moving, and the oil circuit pressure increases until the oil circuit pressure reaches the set pressure of the jam sequence valve 7, the jam sequence valve 7 opens, and oil enters the rod chamber of the anti-stuck cylinder 6, so that the anti-stuck cylinder 6 completes the contraction and the crushing port opens. That is to say, in a jammed state, first ensure that the discharge port of the silo is opened first, and then the crushing port is opened, so as to avoid large pieces of material being transported to the hose and causing blockage.

[0034] In this embodiment, when the large pieces of material or difficult-to-crush materials in the stuck state are discharged, the normal working state is automatically restored. At this time, the oil circuit pressure is reduced to normal pressure (that is, lower than the closing voltage of the pressure relay), the pressure relay is disconnected, and the solenoid valve 2 is reset to the left end state, and oil is supplied to the rodless chamber of the anti-stuck cylinder 6 and the oil inlet of the discharge sequence valve 5 respectively. The anti-stuck cylinder 6 is extended and the crushing port is closed. At this time, the pressure has not reached the lowered pressure of the discharge sequence valve 5, the discharge sequence valve 5 is in a closed state, and the discharge port is in an open state. The oil in the rodless chamber of the anti-stuck cylinder 6 returns oil through the one-way valve in the stuck sequence valve 7 and the solenoid valve 2. When the anti-stuck cylinder 6 is fully extended, the anti-stuck cylinder 6 stops moving, and the oil circuit pressure increases until it reaches the set pressure of the discharge sequence valve 5. The discharge sequence valve 5 opens, and oil enters the rodless chamber of the discharge cylinder 4, so that the discharge cylinder 4 subsequently completes the extension, the discharge port is closed, and the oil in the rod chamber of the discharge cylinder 4 returns oil through the solenoid valve 2.

[0035] In this embodiment, the user can set the set pressure of the discharge sequence valve 5 and the set pressure of the plug sequence valve 7 to screen the materials according to their hardness, which can greatly reduce the amount of non-polymetallic nodule materials entering the conveying system after the manhole covers are broken, such as rocks with hardness far exceeding that of metallic nodules, thereby reducing the resource utilization depletion rate and improving the efficiency of the entire mining system.

[0036] A device suitable for emergency discharge of a deep-sea crusher, including the above-mentioned method suitable for emergency discharge of a deep-sea crusher, including a crusher, a hydraulic motor 1, a solenoid valve 2, an electric control cabinet 3, a pressure relay and a cylinder assembly; the crusher includes a crushing roller for crushing materials and a silo for storing crushed materials, and the silo is provided with a discharge port, which is connected to the outside of the crusher; the device suitable for emergency discharge of a deep-sea crusher, when the crusher is blocked, the rotation of the crushing roller is restricted, causing the load of the hydraulic motor 1 to increase, or even stop, at which time the oil circuit pressure increases, and when the oil circuit pressure reaches the set pressure of the pressure relay, the pressure relay is turned on, the electric control cabinet 3 turns on the solenoid valve 2 to switch, and the oil cylinder The reverse oil supply of the component opens the discharge port and the crushing port formed between the crushing rollers, so that the difficult-to-crush materials fall from the crushing port into the discharge port and are discharged from the outside of the crusher body, completing the discharge of the jammed materials and also completing the screening of non-metallic nodules. After the materials causing the jam are discharged, the load of the hydraulic motor 1 is reduced, and the oil circuit pressure is reduced. When the oil circuit pressure is lower than the set pressure of the pressure relay, the pressure relay contacts open, the solenoid valve 2 returns to its original position, and the cylinder component supplies oil to close the crushing port and the discharge port, completing the automatic discharge of the materials and automatically restoring the normal working state. The whole process is automatically controlled, which improves the efficiency of the entire mining system and avoids the possible paralysis of the entire mining system.

[0037] In this embodiment, the cylinder assembly includes a discharge cylinder 4 and an anti-stuck cylinder 6. The discharge cylinder 4 includes a rod chamber and a rodless chamber, and the anti-stuck cylinder 6 includes a rod chamber and a rodless chamber. When the solenoid valve 2 is reversed, oil flows into the rod chamber of the discharge cylinder 4, the discharge cylinder 4 contracts, and the discharge port opens; oil flows into the rod chamber of the anti-stuck cylinder 6, the anti-stuck cylinder 6 contracts, and the crushing port opens.

[0038] When the solenoid valve 2 is reset and the oil enters the rodless chamber of the discharge cylinder 4, the discharge cylinder 4 extends outward and the discharge port is closed; when the oil enters the rodless chamber of the anti-stuck cylinder 6, the anti-stuck cylinder 6 extends outward and the crushing port is closed.

[0039] In this embodiment, the device suitable for emergency discharge of the deep-sea crusher includes a discharge sequence valve 5 and a stuck sequence valve 7. When the oil circuit pressure reaches the set pressure of the discharge sequence valve 5 and the set pressure of the stuck sequence valve 7, the discharge sequence valve 5 and the stuck sequence valve 7 are opened, and the discharge cylinder 4 and the anti-stuck cylinder 6 are filled with oil; the user can adjust the opening sequence of the discharge sequence valve 5 and the stuck sequence valve 7 by setting the set pressure of the discharge sequence valve 5 and the set pressure of the stuck sequence valve 7. In this embodiment, the set pressure of the discharge sequence valve 5 is set higher than the set pressure of the stuck sequence valve 7 to ensure that the discharge port is opened first before the crushing port is opened to avoid large pieces of material being transported to the hose and causing blockage.

[0040] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A method for emergency discharge of a deep-sea crusher, characterized in that: The invention comprises a crusher, wherein the crusher comprises a crushing roller for crushing materials and a silo for storing the crushed materials, wherein the silo is provided with a discharge port connected to the outside of the crusher body; When the crusher is in a jammed state, the load of the hydraulic motor (1) increases, the oil circuit pressure rises, and when the oil circuit pressure rises to a closed circuit of the pressure relay, the electric control cabinet (3) is turned on, the solenoid valve (2) is reversed, oil enters the cylinder assembly, the discharge port is opened, the crushing roller is moved away, a crushing port is formed, and the jammed material is discharged from the crushing port and the discharge port to the outside of the crusher body; When in working state, the oil circuit pressure drops below the closing voltage of the pressure relay, the solenoid valve (2) is reset, oil enters the cylinder assembly, and the discharge port and the crushing port are closed; The oil cylinder assembly comprises a discharge cylinder (4) and an anti-stuck cylinder (6); When in a jammed state, oil enters the rod chamber of the discharge cylinder (4) and the jammed sequence valve (7), the discharge cylinder (4) contracts, and the discharge port opens. At this time, the pressure does not reach the set pressure of the jammed sequence valve (7), and the jammed sequence valve (7) is in a closed state; When the oil circuit pressure reaches the set pressure of the jam sequence valve (7), the jam sequence valve (7) opens, oil enters the rod chamber of the anti-jamming cylinder (6), the anti-jamming cylinder (6) contracts, and the crushing port opens; When in the working state, the rodless chamber of the anti-stuck cylinder (6) and the discharge sequence valve (5) are filled with oil, the anti-stuck cylinder (6) is extended outward, and the crushing port is closed. At this time, the pressure does not reach the set pressure of the discharge sequence valve (5), and the discharge sequence valve (5) is in a closed state; When the oil circuit pressure reaches the set pressure of the discharge sequence valve (5), the discharge sequence valve (5) opens, and oil enters the rodless chamber of the discharge cylinder (4), causing the discharge cylinder (4) to extend outward, and the discharge port of the silo is closed.

2. A method for emergency discharge of a deep-sea crusher according to claim 1, characterized in that: The oil in the rodless chamber of the discharge cylinder (4) returns through the one-way valve in the discharge sequence valve (5) and the solenoid valve (2). When the discharge cylinder (4) contracts to the end position, the oil circuit pressure increases to reach the set pressure of the stuck sequence valve (7).

3. A method for emergency discharge of a deep-sea crusher according to claim 1, characterized in that: The oil in the rod chamber of the anti-stuck cylinder (6) returns through the one-way valve in the stuck sequence valve (7) and the solenoid valve (2). When the anti-stuck cylinder (6) extends to the end position, the oil circuit pressure increases and reaches the set pressure of the discharge sequence valve (5).

4. A method for emergency discharge of a deep-sea crusher according to claim 3, characterized in that: Non-polymetallic nodules are screened by setting the set pressures of the jam sequence valve (7) and the discharge sequence valve (5).

5. A device adapted for emergency discharge of a deep-sea crusher, comprising the method adapted for emergency discharge of a deep-sea crusher according to any one of claims 1 to 4, characterized in that: The invention comprises a crusher, a hydraulic motor (1), a solenoid valve (2), an electric control cabinet (3), a pressure relay and an oil cylinder assembly; the crusher comprises a crushing roller for crushing materials and a silo for storing crushed materials, the silo is provided with a discharge port, the discharge port is connected to the outside of the crusher; when the oil circuit pressure reaches a set pressure, the pressure relay is turned on, the electric control cabinet (3) turns on the solenoid valve (2) to switch, and the crushing port formed between the discharge port and the crushing roller is opened through the oil cylinder assembly.

6. A device suitable for emergency discharge of deep-sea crusher according to claim 5, characterized in that: The oil cylinder assembly comprises a discharge cylinder (4) and an anti-stuck cylinder (6); the discharge cylinder (4) controls the opening and closing of the discharge port, and the anti-stuck cylinder (6) controls the opening and closing of the crushing port.

7. A device suitable for emergency discharge of deep-sea crusher according to claim 6, characterized in that: The device adapted for emergency discharge of a deep-sea crusher comprises a discharge sequence valve (5) and a jam sequence valve (7). When the oil circuit pressure reaches the set pressure of the discharge sequence valve (5) and the set pressure of the jam sequence valve (7), the discharge sequence valve (5) and the jam sequence valve (7) are opened, and oil is supplied to the discharge cylinder (4) and the anti-jamming cylinder (6).

8. A device suitable for emergency discharge of deep-sea crusher according to claim 7, characterized in that: The discharge cylinder (4) comprises a rod chamber and a rodless chamber, and the anti-stuck cylinder (6) comprises a rod chamber and a rodless chamber.

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