Discharging switching device of scraper centrifugal machine

Abstract

The utility model relates to the technical field of scraper centrifugal machines, and discloses a scraper centrifugal machine discharging switching device which comprises a discharging distribution box provided with a first channel and a second channel. And the material receiving groove is connected to the material outlet in a swinging manner, and is provided with a first swinging position capable of communicating the material outlet with the first channel and a second swinging position capable of communicating the material outlet with the second channel. By means of the scraper centrifugal machine, the problems that when an existing scraper centrifugal machine is used for cleaning residual materials, cleaning liquid directly enters the storage tank connected with the discharging port after being discharged, so that the humidity of the storage tank is easily increased, the moisture content of materials in the storage tank is increased, and the product quality is affected can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of scraper centrifuges, in particular to a material discharging switching device for scraper centrifuges. Background Art

[0002] The scraper centrifuge is a continuously running, intermittently discharging filtering centrifuge. Each working cycle includes: feeding, removing mother liquor, washing filter cake, removing washing liquid, unloading and other operations. Due to the relative movement between the scraper and the drum, the scraper is provided with an end position. At this time, there is still about 5mm of residual filter cake layer in the drum that cannot be discharged by the scraper. This part of the residual material eventually needs to be stopped and opened, and then manually cleaned and removed by washing liquid. However, since the current equipment only has one material discharge port, after the residual material on the drum is soaked and washed with washing liquid, the residual material can only be scraped off by the scraper, and the residual material and the washing liquid are discharged together through the only outlet-the material discharge port. In this way, the washing liquid will directly enter the storage tank connected to the discharge port after being discharged, which is easy to cause the humidity of the storage tank to increase, and then the moisture content of the material in the storage tank increases, affecting the quality of the product. Utility Model Content

[0003] The utility model is intended to provide a scraper centrifuge discharge switching device to solve the problem that when cleaning residual materials in the existing scraper centrifuge, the cleaning liquid directly enters into a storage tank connected to the discharge port after being discharged, which easily leads to high humidity in the storage tank, thereby increasing the moisture content of the material in the storage tank and affecting the product quality.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a scraper centrifuge discharge switching device, including a discharge distribution box, the discharge distribution box is provided with a first channel and a second channel; and also includes a material receiving trough swingably connected to the material discharge port, the material receiving trough has a first swing position that can connect the discharge port and the first channel and a second swing position that can connect the discharge port and the second channel.

[0005] The principles and advantages of this solution are as follows: in this solution, by arranging the first channel and the second channel in the material discharging distribution box, when in use, the material storage trough for storing materials is connected to only one of the channels, and the diversion effect of the swingable material receiving trough allows the materials discharged during normal production and the waste materials and cleaning liquid generated during cleaning to be diverted, so the cleaning liquid will not enter the material channel, let alone the material storage trough, effectively avoiding the situation in which the moisture content of the materials in the storage trough becomes higher due to the mixing of the cleaning liquid, thereby ensuring the production quality of the product.

[0006] Preferably, as an improvement, the material receiving chute is connected to a swing driving unit for controlling the material receiving chute to swing between a first swing position and a second swing position.

[0007] Through this solution, the swing drive unit can control the swing of the material receiving trough, so that the material receiving trough can be selectively maintained in the first swing position or the second swing position, thereby realizing automatic swing control of the material receiving trough, and the operation is more convenient.

[0008] Preferably, as an improvement, the swing drive unit includes a connecting rod rotatably connected to the centrifuge housing, the connecting rod is fixedly connected to the material receiving trough, and a rotating arm is also fixedly connected to the connecting rod; the swing drive unit also includes a switching cylinder fixed to the centrifuge housing, and an end of the rotating arm away from the connecting rod is connected to the telescopic shaft of the switching cylinder through a pin shaft.

[0009] Through this solution, when the switching cylinder works and the telescopic shaft is extended, the telescopic shaft of the switching cylinder drives one end of the rotating arm to swing, and the other end of the rotating arm drives the connecting rod to rotate around the axis of the connecting rod itself, so that the material receiving trough fixed on the connecting rod swings, thereby changing the position of the material receiving trough, so that the material receiving trough is connected to the second channel at the second swing position, and the cleaning liquid is discharged; when the telescopic shaft of the switching cylinder is retracted, the above structure moves in the opposite direction, so that the material receiving trough is connected to the first channel at the first swing position, and the material in normal operation is discharged. In this way, the position and direction of the material receiving trough are changed, and the material and the cleaning liquid are discharged separately.

[0010] Preferably, as an improvement, the discharge switching device also includes a lower discharge port of the chute, which is located between the material discharge port and the receiving trough of the centrifuge, and the lower discharge port of the chute guides the material from the discharge port to the receiving trough.

[0011] Through the above scheme, the lower discharge port of the chute is used to guide the material, so that the material moves in an orderly manner from the discharge port to the receiving chute, and the discharge is more orderly.

[0012] Preferably, as an improvement, a connecting rod is arranged across the discharge port, and both ends of the connecting rod are rotatably connected to the outer casing of the centrifuge.

[0013] Through the above solution, both ends of the connecting rod are rotatably connected to the outer shell of the centrifuge, so that the two ends of the connecting rod are evenly stressed, and the connecting rod drives the receiving trough to move more smoothly.

[0014] Preferably, as an improvement, the discharge switching device further comprises a door cover, which is fixed on the outer casing of the centrifuge and arranged close to the discharge port, and the lower discharge port of the chute and the switching cylinder are both fixed on the door cover.

[0015] Through the above scheme, the door cover is used to install the lower discharge port of the chute and the switching cylinder, which facilitates the installation of the above structures.

[0016] Preferably, as an improvement, a support frame is fixedly connected to the door cover, and the connecting rod is rotatably connected to the support frame.

[0017] Through the above solution, the support frame provides a position and space for the installation of the connecting rod, so that the installation of the connecting rod is more stable.

[0018] Preferably, as an improvement, a partition is provided in the discharge distribution box, the height of the partition is lower than the height of the discharge distribution box, the partition divides the internal space of the discharge distribution box into a first channel and a second channel, the top of the partition is connected to an inclined plate, one end of the inclined plate connected to the partition is lower than the other end, and the high end of the inclined plate deviates from the plane where the partition is located toward the side of the partition.

[0019] Through the above solution, the partition plate serves as a partition between the first channel and the second channel, preventing the cleaning liquid from entering the material storage tank and increasing the material humidity. The inclined plate can give way to the swing of the receiving tank to avoid hindering the movement of the receiving tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a side view of embodiment 1 of the utility model.

[0021] Figure 2 It is a side view of embodiment 2 of the present utility model.

[0022] Figure 3 for Figure 2 Front view of . DETAILED DESCRIPTION

[0023] The following is further described in detail through specific implementations, but the implementation of the utility model is not limited thereto. Unless otherwise specified, the technical means used in the following implementations are conventional means well known to those skilled in the art; the experimental methods used are all conventional methods; the materials, reagents, etc. used can all be obtained from commercial channels.

[0024] The figure marks in the drawings of the specification include: discharge distribution box 1, material receiving trough 2, partition 3, inclined plate 4, first channel 5, second channel 6, door cover 7, connecting rod 8, support frame 9, rotating arm 10, switching cylinder 11, lower discharge port of the inclined chute 12, first position 13, second position 14, material discharge port 15.

[0025] Implementation example Figure 1 Shown: A scraper centrifuge discharge switching device includes a discharge distribution box 1, a receiving trough 2 and a swing drive unit.

[0026] A partition 3 is provided in the discharge distribution box 1. The height of the partition 3 is lower than that of the discharge distribution box 1. The partition 3 divides the internal space of the discharge distribution box 1 into a first channel 5 and a second channel 6. The top of the partition 3 is connected to an inclined plate 4. One end of the inclined plate 4 connected to the partition 3 is lower than the other end, and the high end of the inclined plate 4 deviates from the plane where the partition 3 is located to the side of the partition 3. In this embodiment, the inclined plate 4 is inclined from the upper left to the lower right.

[0027] The receiving trough 2 is swingably connected to the material discharge port 15 , and has a first swing position for connecting the discharge port with the first channel 5 and a second swing position for connecting the discharge port with the second channel 6 . The receiving trough 2 is located on the right side of the inclined plate 4 .

[0028] The swing drive unit is used to control the material receiving trough 2 to swing between the first swing position and the second swing position. The swing drive unit in this embodiment adopts a motor (not shown in the figure), which is located beside the material receiving trough 2, and the drive shaft of the motor is connected to the upper end of the material receiving trough 2. When the drive shaft of the motor rotates, the material receiving trough 2 can be driven to swing between the first swing position and the second swing position. Figure 1 The plane shown is rotated about its upper end, so that the lower end of the receiving trough 2 is rotated and connected to one of the first channel 5 or the second channel 6.

[0029] During the specific implementation of this embodiment, when the equipment is operating normally, the material receiving trough 2 is located at a lower first position 13, at which time the material receiving trough 2 is connected to the first channel 5, and the material is discharged from the discharge port and falls into the first channel 5 through the material receiving trough 2 for discharge; when the equipment is cleaned, the motor works and drives the material receiving trough 2 to swing upward, at which time the material receiving trough 2 is located at a higher second position 14 and is connected to the second channel 6 below, and the cleaning liquid and waste are discharged from the discharge port and fall into the second channel 6 through the material receiving trough 2 for discharge, thereby achieving the diversion discharge of normal material and cleaning liquid, thereby avoiding the cleaning liquid from affecting the humidity of the material and damaging the product quality.

[0030] Example 2

[0031] The difference between this embodiment and embodiment 1 is that the structure of the swing drive unit is different. The structure of the swing drive unit in this embodiment is as follows: Figure 2 and Figure 3 As shown together, it includes a door cover 7 and a connecting rod 8. The door cover 7 is fixed on the outer shell of the centrifuge and is arranged near the discharge port; the door cover 7 is also bolted to two sets of support frames 9, which are respectively located on the left and right sides of the discharge port, and the connecting rod 8 is arranged across the discharge port, and the two ends of the connecting rod 8 are respectively rotatably connected to the two sets of support frames 9 through bearings. The connecting rod 8 is welded and fixed to the upper end of the receiving trough 2, and a rotating arm 10 is also welded and fixed to the connecting rod 8; the swing drive unit also includes a switching oil cylinder 11 bolted to the door cover 7 on the outer shell of the centrifuge, and the end of the rotating arm 10 away from the connecting rod 8 is rotatably connected to the telescopic shaft of the switching oil cylinder 11 through a pin.

[0032] In this embodiment, a chute lower discharge port 12 is bolted to the door cover 7 , and the chute lower discharge port 12 is located between the material discharge port 15 of the centrifuge and the material receiving trough 2 , and the chute lower discharge port 12 guides the material from the discharge port to the material receiving trough 2 .

[0033] During the specific implementation of this embodiment, when the equipment is operating normally, the material receiving trough 2 is located at a lower first position 13, at which time the material receiving trough 2 is connected to the first channel 5 below, and the material is discharged from the discharge port and falls into the first channel 5 through the material receiving trough 2 for discharge; when the equipment is cleaned and the cleaning liquid is discharged and the position of the material receiving trough 2 needs to be adjusted, the switching cylinder 11 is started, the telescopic shaft of the switching cylinder 11 extends out and pushes the end of the rotating arm 10 connected to it to swing downward, and the other end of the rotating arm 10 follows the upward swing and drives the lower end of the material receiving trough 2 to swing upward, so that the material receiving trough 2 is in a higher second position 14, at which time the cleaning liquid falls into the second channel 6 through the material receiving trough 2 for discharge, thereby realizing the diversion operation.

[0034] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A scraper centrifuge discharge switching device, characterized in that: It includes a material discharging distribution box, which is provided with a first channel and a second channel; it also includes a material receiving trough swingably connected to the material discharging port, the material receiving trough has a first swing position that can connect the material discharging port with the first channel and a second swing position that can connect the material discharging port with the second channel.

2. A scraper centrifuge discharge switching device according to claim 1, characterized in that: The material receiving trough is connected to a swing driving unit for controlling the material receiving trough to swing between a first swing position and a second swing position.

3. A scraper centrifuge discharge switching device according to claim 2, characterized in that: The swing drive unit includes a connecting rod rotatably connected to the centrifuge housing, the connecting rod is fixedly connected to the material receiving trough, and a rotating arm is fixedly connected to the connecting rod; the swing drive unit also includes a switching cylinder fixed to the centrifuge housing, and an end of the rotating arm away from the connecting rod is connected to the telescopic shaft of the switching cylinder through a pin shaft.

4. A scraper centrifuge discharge switching device according to claim 3, characterized in that: The discharge switching device also includes a lower discharge port of the chute, which is located between the material discharge port of the centrifuge and the material receiving trough, and the lower discharge port of the chute guides the material from the discharge port to the material receiving trough.

5. A scraper centrifuge discharge switching device according to claim 4, characterized in that: The connecting rod is arranged across the discharge port, and both ends of the connecting rod are rotatably connected to the outer shell of the centrifuge.

6. A scraper centrifuge discharge switching device according to claim 5, characterized in that: The discharge switching device also includes a door cover, which is fixed on the outer shell of the centrifuge and arranged close to the discharge port, and the lower discharge port of the chute and the switching oil cylinder are both fixed on the door cover.

7. A scraper centrifuge discharge switching device according to claim 6, characterized in that: The door cover is also fixedly connected with a support frame, and the connecting rod is rotatably connected to the support frame.

8. A scraper centrifuge discharge switching device according to any one of claims 1 to 7, characterized in that: A partition is provided in the discharge distribution box, and the height of the partition is lower than that of the discharge distribution box. The partition divides the internal space of the discharge distribution box into the first channel and the second channel. The top of the partition is connected to an inclined plate, and one end of the inclined plate connected to the partition is lower than the other end, and the high end of the inclined plate deviates from the plane where the partition is located toward the side of the partition.

Images