Novel full-automatic magnetic powder dehydrator protection device

Abstract

The utility model discloses a novel full-automatic protection device for a magnetic powder dehydrator, relates to the technical field of magnetic powder dehydrators, and solves the problems that an inner roller of a magnetic powder dehydrator in the prior art is extremely easy to block and cannot rotate during actual work, but a feeding pump works all the time, so that more and more magnetic powder raw materials are accumulated in the inner roller, the feeding pump is damaged, and the service life of the feeding pump is influenced. And cleaning or maintenance is very difficult. Comprising a frame body, a closed protective cover connected to the frame body, an outer roller rotationally arranged in the closed protective cover, an inner roller rotationally arranged in the outer roller, a spiral blade arranged on the inner roller and an inner roller rotation detection assembly. The feeding pump is controlled to work or stop by checking the rotating speed of the inner roller through the speed sensor, and the state of the magnetic powder dehydrator is prompted through the alarm lamp, so that the feeding pump of the dehydrator can be effectively protected, the situation that the feeding pump is damaged due to continuous work due to the fact that the inner roller does not rotate is avoided, and the working efficiency is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of magnetic powder dehydrators, and in particular relates to a novel full-automatic magnetic powder dehydrator protection device. Background Art

[0002] Magnetic powder dehydrator is a slurry drying and dehydration equipment. The specific process is: when the suspension to be separated enters the drum through the feed pipe and the spiral outlet, the high-speed rotating drum generates a strong centrifugal force to settle the solid particles with a density greater than the liquid phase to the inner wall of the drum. Due to the different speeds of the spiral and the drum, there is a relative motion between the two (i.e., the speed difference). The relative motion of the spiral and the drum is used to push the solid phase deposited on the inner wall of the drum to the outlet at the small end of the drum for discharge, and the separated clear liquid is discharged from the other end of the centrifuge. The entire processing process is automatic feeding, automatic unloading, fully enclosed, and continuous dehydration.

[0003] At present, in the existing magnetic powder dehydrator, the inner drum is very easy to get stuck and stop rotating in actual operation, while the feed pump is always working, which will cause the magnetic powder raw materials in the inner drum to accumulate more and more, causing the feed pump to be damaged and making it very difficult to clean or repair. Therefore, based on the above problems, we designed a new type of fully automatic magnetic powder dehydrator protection device. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a new type of fully automatic magnetic powder dehydrator protection device, which solves the technical problem that in the prior art magnetic powder dehydrator, the inner drum is easily stuck and does not rotate, while the feed pump is always working, which will cause more and more magnetic powder raw materials to accumulate in the inner drum, causing damage to the feed pump and making it very difficult to clean or repair.

[0005] To achieve the above-mentioned purpose, according to the embodiment of the first aspect of the utility model, a new type of fully automatic magnetic powder dehydrator protection device is proposed, including a frame, a closed protective cover connected to the frame, an outer drum rotatably arranged in the closed protective cover, an inner drum rotatably arranged in the outer drum, a spiral blade arranged on the inner drum and an inner drum rotation detection component, the rotating shaft on one side of the outer drum extends through the closed protective cover, and a secondary pulley 2 is mounted at this end, the rotating shaft on one side of the inner drum extends through the rotating shaft on the other side of the outer drum, and a detection turntable and a secondary pulley 1 are mounted at this end, the inner drum rotation detection component includes a photoelectric speed sensor arranged on the closed protective cover and corresponding to the detection turntable, and the photoelectric speed sensor is used to detect the rotation speed of the inner drum.

[0006] A further improvement is that an electric motor is arranged on each side of the frame, and a main pulley is connected to the main shaft end of each motor. The two main pulleys are connected to auxiliary pulley one and auxiliary pulley two through belts respectively. The main pulleys at the main shaft ends of the two motors drive auxiliary pulley one and auxiliary pulley two respectively, so that the relative movement generated by the inner drum and the outer drum after rotation can push the magnetic powder raw material deposited on the inner wall of the drum to the discharge port for discharge, and the separated clear liquid is discharged from the other end of the centrifuge.

[0007] A further improvement is that the inner drum rotation detection component also includes an alarm light and a relay connected to the photoelectric speed sensor, and the relay is connected to the external feeding pump and the starter and stop device on the motor. The operation or stop of the motor and the feeding pump is controlled by checking the speed of the inner drum, and the status of the magnetic powder dehydrator is indicated by the alarm light.

[0008] A further improvement is that the device also includes a feed pipe, a magnetic powder raw material discharge pipe and a clear liquid discharge pipe, the feed pipe penetrates from the rotating shaft on one side of the outer drum and the second auxiliary pulley, and the inner drum is provided with a discharge trough on the rotating shaft on the side close to the second auxiliary pulley.

[0009] A further improvement is that the magnetic powder raw material discharge pipe and the clear liquid discharge pipe are arranged at the bottom of the closed shield, and the outer drum is provided with a discharge port at the position of the magnetic powder raw material discharge pipe and the clear liquid discharge pipe.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model, through the design of the inner drum, the outer drum, the detection turntable and the inner drum rotation detection component, uses a speed sensor to check the rotation speed of the inner drum to control the operation or stop of the feed pump, and prompts the status of the magnetic powder dehydrator through an alarm light, which can effectively protect the feed pump of the dehydrator, avoids damage to the feed pump caused by the failure of the inner drum to rotate, and thus improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a principle block diagram of the inner drum rotation detection component of the utility model.

[0014] Markings in the figure:

[0015] 1. Closed protective cover; 11. Motor; 12. Secondary pulley 1; 13. Spiral blade; 14. Inner drum; 14. Discharge chute; 15. Discharge pipe for magnetic powder raw material; 16. Frame; 17. Detection turntable; 18. Clear liquid outlet pipe; 21. Main pulley; 22. Secondary pulley 2; 23. Feed pipe; 24. Outer drum; 241. Discharge port; 3. Inner drum rotation detection assembly; 31. Photoelectric speed sensor; 32. Warning light; 33. Relay. DETAILED DESCRIPTION

[0016] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] like Figure 1 As shown, a novel fully automatic magnetic powder dehydrator protection device comprises a frame 16, a closed protective cover 1 connected to the frame 16, an outer drum 24 rotatably arranged in the closed protective cover 1, an inner drum 14 rotatably arranged in the outer drum 24, a spiral blade 13 arranged on the inner drum 14, a feed pipe 23, a magnetic powder raw material discharge pipe 15 and a clear liquid outlet pipe 18, the feed pipe 23 penetrates from a rotating shaft on one side of the outer drum 24 and a secondary belt pulley 22, the inner drum 14 is provided with a discharge trough 141 on a rotating shaft on a side close to the secondary belt pulley 22, the magnetic powder raw material discharge pipe 15 and the clear liquid outlet pipe 18 are arranged at the bottom of the closed protective cover 1, and the outer drum 24 is provided with a discharge port 241 at the position of the magnetic powder raw material discharge pipe 15 and the clear liquid outlet pipe 18;

[0018] Among them, Figure 1 As shown, the rotating shaft on one side of the outer drum 24 extends through the closed shield 1, and a secondary pulley 22 is sleeved at the end, the rotating shaft on one side of the inner drum 14 extends through the rotating shaft on the other side of the outer drum 24, and a detection turntable 17 and a secondary pulley 12 are sleeved at the end, and a motor 11 is arranged on each side of the frame 16, and a main pulley 21 is connected to the main shaft end of each motor 11, and the two main pulleys 21 are respectively connected to the secondary pulley 12 and the secondary pulley 22 through belts;

[0019] By starting the two motors 11, a main pulley 21 drives the secondary pulley 12 and the inner drum 14 to rotate, and the other main pulley 21 drives the secondary pulley 22 and the outer drum 24 to rotate, so that the relative movement of the spiral blade 13 on the inner drum 14 and the outer drum 24 pushes the magnetic powder raw material deposited on the inner wall of the outer drum 24 to the magnetic powder raw material discharge pipe 15 on one side for discharge, and the separated clear liquid is discharged from the clear liquid outlet pipe 18;

[0020] like Figure 2 As shown, it also includes an inner drum rotation detection component 3, which includes a photoelectric speed sensor 31 arranged on the closed protective cover 1 and corresponding to the detection turntable 17, and an alarm light 32 and a relay 33 connected to the photoelectric speed sensor 31. The photoelectric speed sensor 31 is used to detect the rotation speed of the inner drum 14. The relay 33 is connected to the external feeding pump and the starter and stopper on the motor 11. The operation or stop of the motor 11 and the feeding pump is controlled by checking the rotation speed of the inner drum 14, and the status of the magnetic powder dehydrator is indicated by the alarm light 32.

[0021] like Figure 1 to Figure 2 As shown, it should be noted that the actual size of each component in the application document is selected and installed according to the actual needs on site. Before implementation, the feed pump of the dehydrator is connected to the feed pipe 23; in addition, it should be noted that the model of the relay 33 is RXM2AB1BD, the model of the photoelectric speed sensor 31 is SZGB-4A, and the model of the alarm light 32 is YYJD-ZZ-66, wherein the motor 11 can be a servo motor, model EDSMT-2TI, all of which are commercially available products of the prior art, and the working principle has been disclosed and can be used directly; the working principle of this new type of fully automatic magnetic powder dehydrator protection device is introduced as follows:

[0022] When in use, the feed pump of the dehydrator is used to convey materials into the feed pipe 23, so that the materials are introduced into the outer drum 24 and the inner drum 14 from the discharge groove 141 of the inner drum 14, so that the two motors 11 are started at the same time, so that a main pulley 21 drives the auxiliary pulley 12 and the inner drum 14 to rotate, and the other main pulley 21 drives the auxiliary pulley 22 and the outer drum 24 to rotate, so that the relative movement of the spiral blade 13 on the inner drum 14 and the outer drum 24 pushes the magnetic powder raw material deposited on the inner wall of the outer drum 24 to the magnetic powder raw material discharge pipe 15 on one side for discharge, and the separated clear liquid is discharged from the clear liquid outlet pipe 18;

[0023] When the magnetic powder dehydrator is working normally, after the speed of the inner drum 14 reaches the set value of the photoelectric speed sensor 31, an electrical signal is generated to the relay 33, and the relay 33 controls the feed pump and the motor 11 to start working. At this time, the alarm light 32 turns blue;

[0024] If the magnetic powder dehydrator is working normally, and the inner drum 14 stops rotating due to a fault, the speed of the inner drum 14 cannot reach the set value of the photoelectric speed sensor 31, then the relay 33 controls the feed pump and the motor 11 to stop working. At this time, the start alarm light 32 displays red and emits a buzzer alarm to prompt the staff to come for maintenance in time to achieve protection, which can effectively protect the feed pump of the dehydrator, avoid the feed pump from being damaged due to the failure of the inner drum 14 to rotate, and facilitate the subsequent cleaning or maintenance work, thereby improving the work efficiency;

[0025] When the dehydrator is shut down, the photoelectric speed sensor 31 does not work, and the warning light 32 displays yellow, completing the whole process.

[0026] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A new type of fully automatic magnetic powder dehydrator protection device, characterized in that: The invention comprises a frame (16), a closed protective cover (1) connected to the frame (16), an outer roller (24) rotatably arranged in the closed protective cover (1), an inner roller (14) rotatably arranged in the outer roller (24), a spiral blade (13) arranged on the inner roller (14) and an inner roller rotation detection assembly (3), wherein a rotating shaft on one side of the outer roller (24) extends through the closed protective cover (1) and is provided with a secondary belt pulley 2 (22) at the end, a rotating shaft on one side of the inner roller (14) extends through a rotating shaft on the other side of the outer roller (24) and is provided with a detection turntable (17) and a secondary belt pulley 1 (12) at the end, and the inner roller rotation detection assembly (3) comprises a photoelectric rotation speed sensor (31) arranged on the closed protective cover (1) and corresponding to the detection turntable (17).

2. A novel fully automatic magnetic powder dehydrator protection device according to claim 1, characterized in that: An electric motor (11) is disposed on each side of the frame (16), and a main shaft end of each electric motor (11) is connected to a main pulley (21), and the two main pulleys (21) are respectively connected to a secondary pulley 1 (12) and a secondary pulley 2 (22) through belts.

3. A new type of fully automatic magnetic powder dehydrator protection device according to claim 1, characterized in that: The inner drum rotation detection assembly (3) also includes an alarm light (32) and a relay (33) connected to the photoelectric rotation speed sensor (31).

4. A new type of fully automatic magnetic powder dehydrator protection device according to claim 1, characterized in that: The device also includes a feed pipe (23), a magnetic powder raw material discharge pipe (15), and a clear liquid discharge pipe (18), wherein the feed pipe (23) penetrates from a rotating shaft on one side of the outer drum (24) and the second secondary belt pulley (22), and the inner drum (14) is provided with a discharge trough (141) on a rotating shaft on one side close to the second secondary belt pulley (22).

5. A new type of fully automatic magnetic powder dehydrator protection device according to claim 4, characterized in that: The magnetic powder raw material discharge pipe (15) and the clear liquid discharge pipe (18) are arranged at the bottom of the closed protective cover (1), and the outer drum (24) is provided with a discharge port (241) at the position of the magnetic powder raw material discharge pipe (15) and the clear liquid discharge pipe (18).

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