Centrifugal machine with discharging and flushing switching device

Abstract

The invention discloses a centrifugal machine with a discharging and flushing switching device. The centrifugal machine comprises a base, a housing is installed on the base, a rotary drum is rotationally connected into the base, a spiral propeller is rotationally connected into the rotary drum, the speed difference exists between the speed of the spiral propeller and the speed of the rotary drum, and the discharging and flushing switching device is installed at a slag outlet of the housing. The discharging and flushing switching device comprises a square vertical pipe, a square inclined pipe is installed at the side end of the square vertical pipe, a communicating opening between the square vertical pipe and the square inclined pipe is covered with a square cover plate, the square cover plate is hinged to the bottom end of the communicating opening, a speed reducer is fixed to the side end of the square vertical pipe, and a swing rod is fixed to an output shaft of the speed reducer. A connecting rod is hinged to the end face of the square cover plate and hinged to the swing rod, and a hand-cranking wheel is installed on an input shaft of the speed reducer. A rubber layer is attached to the surface of the square cover plate. Discharging and flushing switching can be carried out on the discharging end of the centrifugal machine, the effect is good, and the centrifugal machine is worthy of application and popularization.

Description

Technical Field

[0001] The invention relates to the field of centrifuges, in particular to a centrifuge with a discharging and flushing switching device. Background Art

[0002] In the existing centrifuge industry in my country, most of the material outlets are divided into two, one is the liquid phase outlet, and the other is the solid phase outlet; the material is separated into liquid and solid phases under the action of strong centrifugal force, and finally leaves the centrifuge from the corresponding outlet and enters the corresponding collection device; compared with municipal garbage, there is no need to frequently clean the inside of the centrifuge, but for industries such as medical and food that have very strict quality requirements on products, it is necessary to clean the inside of the centrifuge after the centrifuge has been used for a specific period of time to improve product quality; after the inside of the centrifuge is cleaned with clean water or alkaline substances, the cleaning wastewater leaves the centrifuge not only through the liquid phase outlet, but also from the solid phase outlet, because it is necessary to avoid contaminating the collected solid phase. Under the premise of not moving the solid phase collection device, it is difficult to collect the cleaning wastewater, and moving the solid phase collection device has the disadvantage of being time-consuming and labor-intensive.

[0003] Chinese utility model patent CN 211887440 U discloses an automatic cleaning device for a horizontal screw centrifuge, which comprises a horizontal screw centrifuge housing and a cleaning pipe set, wherein a drum is installed in the horizontal screw centrifuge housing, a push screw is arranged in the drum, the cleaning pipe set is fixedly installed at the upper and lower ends of the push screw, a conversion joint is installed at the head end of the cleaning pipe set, and a shunt pipe is connected through the conversion joint flange, a branch solenoid valve is fixedly installed on the shunt pipe, the shunt pipe is fixedly connected to a water pipe through a three-way joint, and a master control solenoid valve is fixedly installed on the water pipe; the cleaning pipe set comprises an outer pipe fitting and an inner pipe fitting, both ends of the inner pipe fitting are equipped with a first bearing, and the inner pipe fitting is equipped in the outer pipe fitting through the first bearing, a water spray hole is opened at the top end of the outer pipe fitting, a strip through groove is opened at the top end of the inner pipe fitting, a first alignment arrow is engraved on the head end of the outer pipe fitting, and a second alignment arrow is engraved on the head end of the inner pipe fitting. After the inside of the centrifuge is cleaned, the cleaning wastewater discharged by the utility model will pollute the solid phase in the solid phase collecting device, and it is impossible to achieve the goal of cleaning the inside of the centrifuge without polluting the collected solid phase. Summary of the invention

[0004] The present invention aims to solve the above-mentioned shortcomings of the prior art and provide a centrifuge with a discharging and flushing switching device which can be connected to the centrifuge slag outlet flange, thereby meeting the requirement of connecting to the centrifuge slag outlet flange and reaching one outlet to different collecting devices through the discharging and flushing devices.

[0005] The present invention adopts a technical solution to solve the technical problem: the centrifuge with a discharging and flushing switching device comprises a base, a cover shell is installed on the base, a drum is rotatably connected in the base, a spiral propeller with a speed difference with the drum is rotatably connected in the drum, and the discharging and flushing switching device is installed at the slag outlet of the cover shell; the discharging and flushing switching device comprises a square vertical tube, a square inclined tube is installed at the side end of the square vertical tube, a square cover plate is covered at the connecting port between the square vertical tube and the square inclined tube, the square cover plate is hinged at the bottom end of the connecting port, a reducer is fixed at the side end of the square vertical tube, a swing rod is arranged in the square vertical tube, the swing rod is driven by the output shaft of the reducer, a connecting rod is hinged on the end surface of the square cover plate, the connecting rod and the swing rod are hinged together, and a hand wheel is installed on the input shaft of the reducer; a rubber layer is attached to the surface of the square cover plate. The function of the drum and the screw propeller here is to use the differential to make the drum and the screw propeller maintain a constant speed difference, so that the material can be separated from the solid and liquid and discharged; the function of the discharge and flushing switching device here is to clean the inside of the centrifuge and improve the product quality without moving the solid phase collecting device; the working principle of the discharge and flushing switching device here is: when the slag outlet of the centrifuge discharges solid phase, at this time, the square cover plate covers the connecting port, so the solid phase after material separation falls smoothly to the solid phase collecting device through the square vertical pipe; when it is necessary to clean the inside of the centrifuge, it is cleaned with clean water or alkaline substances and leaves the centrifuge without It will only leave through the liquid phase outlet and will also leave from the solid phase outlet, so in order to avoid contaminating the collected solid phase, at this time, by turning the hand wheel, the output shaft of the reducer is driven to rotate, and then the swing rod is driven to rotate clockwise, thereby driving the connecting rod to push the square cover plate counterclockwise and press it against the inner wall of the square vertical tube, so that after cleaning with clean water or alkaline substances, the cleaning liquid can pass through the square cover plate and pass through the square inclined tube, sleeve and cleaning liquid output pipe to be drained out, and will not contaminate the collected solid phase; the role of the rubber layer here is to serve as a sealing role for the square cover plate, so as to avoid the cleaning liquid from leaking out from the gap of the square cover plate after cleaning with clean water or alkaline substances and contaminating the collected solid phase.

[0006] Further improvement, the square inclined tube is rotatably connected with a rotating shaft, the inner and outer sides of the rotating shaft are fixed with swing rods, the inner and outer sides of the square cover are hinged with connecting rods, the two swing rods and the two connecting rods are hinged together, and the output shaft of the reducer is fixed with the rotating shaft. Here, the rotating shaft, the inner and outer sides of the rotating shaft are fixed with swing rods, and the role of the two connecting rods is to drive the square cover to open and close with more uniform force and smoother opening and closing.

[0007] Further improvement, a bellows is provided at the top of the square vertical pipe, and flanges are fixed at the top and bottom of the bellows. The bellows and flanges here can be flexibly installed at the slag discharge end of the centrifuge, so as to facilitate the adjustment of the installation position relationship between the slag discharge end of the centrifuge and the discharge and flushing switching device, so as to facilitate the installation of the discharge and flushing switching device at the centrifuge.

[0008] Further improvement, the end of the square inclined tube is sleeved with a sleeve, the side end of the sleeve is provided with a cleaning liquid output pipe, the cleaning liquid output pipe is connected with a lateral inclined pipe, and the lateral inclined pipe is sleeved at the sleeve. Here, the sleeve, the cleaning liquid output pipe, and the lateral inclined pipe can adjust the position of the cleaning liquid output pipe, so that the cleaning liquid output pipe can be adjusted and installed at the liquid outlet end of the centrifuge.

[0009] Further improvement, the outer contour and the inner contour of the sleeve are provided with a self-lubricating layer. The function of the self-lubricating layer here is to enable the sleeve to be conveniently and smoothly sleeved on the square inclined tube and sleeved on the lateral inclined tube; the self-lubricating layer here is made of tin bronze material.

[0010] The beneficial effects of the present invention are:

[0011] 1). A discharging and flushing switching device is set at the slag outlet of the centrifuge to facilitate the separation of the centrifuge and flushing of the centrifuge after the slag is discharged;

[0012] 2). The square cover plate can close and guide the square vertical pipe, which can be switched very conveniently. The square vertical pipe can not only pass the slag solid phase, but also guide the cleaning sewage to flow out to the designated device;

[0013] 3) It can greatly facilitate the flushing of the centrifuge, avoid contamination of the collected solid phase, and collect the cleaning wastewater without moving the solid phase collection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention;

[0015] Figure 2 It is a structural schematic diagram of the discharging and flushing switching device in the present invention;

[0016] Figure 3 It is a structural schematic diagram of the casing area in the present invention;

[0017] Figure 4 It is a cross-sectional view of the discharging and flushing switching device in the present invention;

[0018] Figure 5 for Figure 4 A local enlarged view of area A;

[0019] Figure 6 for Figure 4 B direction perspective view;

[0020] Figure 7 The figure is a flow chart of the working principle of the discharging and flushing switching device in the present invention.

[0021] Explanation of the reference numerals: base 1, cover shell 2, drum 3, slag outlet 3-1, liquid outlet 3-2, screw propeller 4, discharge and flushing switching device 5, square vertical pipe 5-1, square inclined pipe 5-2, connecting port 5-3, square cover plate 5-4, reducer 5-5, swing rod 5-6, connecting rod 5-7, hand wheel 5-8, rubber layer 5-9, rotating shaft 5-10, bellows 5-11, sleeve 5-12, self-lubricating layer 5-12a, cleaning liquid output pipe 5-13, lateral inclined pipe 5-13a, flange 5-14. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings:

[0023] Referring to the accompanying drawings: This centrifuge with a discharge and flushing switching device comprises a base 1, a cover 2 is mounted on the base 1, a drum 3 is rotatably connected in the base 2, a spiral propeller 4 with a speed difference with the drum 3 is rotatably connected in the drum 3, and is characterized in that: a discharge and flushing switching device 5 is mounted at the slag outlet of the cover 1; the discharge and flushing switching device 5 comprises a square vertical pipe 5-1, a square inclined pipe 5-2 is mounted at the side end of the square vertical pipe 5-1, and a connecting port 5 between the square vertical pipe 5-1 and the square inclined pipe 5-2 is -3 is covered with a square cover plate 5-4, which is hinged at the bottom end of the connecting port 5-3, a reducer 5-5 is fixed to the side end of the square vertical tube 5-1, a swing rod 5-6 is arranged in the square vertical tube 5-1, and the swing rod 5-6 is driven by the output shaft of the reducer 5-5, a connecting rod 5-7 is hinged on the end face of the square cover plate 5-4, the connecting rod 5-7 is hinged with the swing rod 5-6, and a hand-cranked wheel 5-8 is installed on the input shaft of the reducer 5-5; a rubber layer 5-9 is attached to the surface of the square cover plate 5-4.

[0024] A rotating shaft 5-10 is rotatably connected to the square inclined tube 5-2, and swing rods 5-6 are fixed to the inner and outer sides of the rotating shaft 5-10. Connecting rods 5-7 are hinged to the inner and outer sides of the square cover plate 5-4. The two swing rods 5-6 and the two connecting rods 5-7 are hinged together respectively, and the output shaft of the reducer 5-5 is fixed to the rotating shaft 5-10.

[0025] A bellows 5-11 is provided at the top end of the square vertical pipe 5-1, and flanges 5-14 are fixed to the top and bottom ends of the bellows 5-11.

[0026] The end of the square inclined tube 5-2 is sleeved with a sleeve 5-12, and the side end of the sleeve 5-12 is provided with a cleaning liquid output pipe 5-13, and the cleaning liquid output pipe 5-13 is connected to a lateral inclined tube 5-13a, and the lateral inclined tube 5-13a is sleeved on the sleeve 5-12.

[0027] The outer contour and the inner contour of the sleeve 5-12 are both provided with a self-lubricating layer 5-12a.

[0028] The working principle of the present invention is as follows: when the screw propeller 4 and the drum 3 are used to separate the solid and liquid of the material, the drum 3 and the screw pusher 4 rotate at a high speed in the same direction at a certain differential speed through a differential, and the material is continuously introduced into the inner cylinder of the screw pusher 4 from the feed pipe and accelerated before entering the drum 3. Under the action of strong centrifugal force, the heavier solid phase is deposited on the inner wall of the drum 3 to form a sediment layer, and the spiral propulsion blades on the screw pusher 4 rotate and push, and the deposited solid phase is continuously pushed to the cone section of the drum 3 and thrown out through the slag outlet 3-1, and the clear liquid is close to the inner wall side of the drum 3 and continuously moves to the right. The liquid overflows through the liquid outlet 3-2 at the other end of the drum 3; when the inside of the centrifuge needs to be cleaned, it is only necessary to rotate the hand-cranked wheel 5-8 to drive the output shaft of the reducer 5-5 to rotate, thereby driving the swing rod 5-6 to rotate clockwise, thereby driving the connecting rod 5-7 to push the square cover plate 5-4 counterclockwise and press it against the inner wall of the square vertical tube 5-1. After the inside of the centrifuge is cleaned with clean water or alkaline substances, the cleaning sewage can pass through the square cover plate 5-4 and drain out through the square inclined tube 5-2, the sleeve 5-12 and the cleaning liquid output pipe 5-13 (such as Figure 1 As shown), the solid phase collected at the slag outlet 3-1 will not be contaminated, thereby achieving the purpose of slag discharge and flushing in one, saving time and labor, and worthy of popularization and application.

[0029] Although the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A centrifuge with a discharging and flushing switching device, comprising a base (1), a cover (2) mounted on the base (1), a drum (3) rotatably connected inside the base (1), a screw propeller (4) rotatably connected inside the drum (3) and having a speed difference with the drum (3), wherein: A discharge and flushing switching device (5) is installed at the slag discharge port of the housing (1); The discharging and flushing switching device (5) comprises a square vertical tube (5-1), a square oblique tube (5-2) is installed at the side end of the square vertical tube (5-1), a square cover plate (5-4) is covered at the communication port (5-3) between the square vertical tube (5-1) and the square oblique tube (5-2), the square cover plate (5-4) is hinged at the bottom end of the communication port (5-3), a reducer (5-5) is fixed at the side end of the square vertical tube (5-1), a swing rod (5-6) is arranged in the square vertical tube (5-1), the swing rod (5-6) is driven by the output shaft of the reducer (5-5), a connecting rod (5-7) is hinged on the end surface of the square cover plate (5-4), the connecting rod (5-7) is hinged with the swing rod (5-6), and a hand-cranked wheel (5-8) is installed on the input shaft of the reducer (5-5); A rubber layer (5-9) is attached to the surface of the square cover plate (5-4).

2. A centrifuge with a discharging and flushing switching device according to claim 1, characterized in that: The square inclined tube (5-2) is rotatably connected to a rotating shaft (5-10), the inner and outer sides of the rotating shaft (5-10) are both fixed with swing rods (5-6), the inner and outer sides of the square cover plate (5-4) are both hinged with connecting rods (5-7), the two swing rods (5-6) and the two connecting rods (5-7) are respectively hinged together, and the output shaft of the reducer (5-5) is fixed together with the rotating shaft (5-10).

3. A centrifuge with a discharging and flushing switching device according to claim 1, characterized in that: A rubber bellows (5-11) is provided at the top end of the square vertical pipe (5-1), and flanges (5-14) are fixed at the top end and the bottom end of the rubber bellows (5-11).

4. A centrifuge with a discharging and flushing switching device according to claim 1, characterized in that: The end of the square inclined tube (5-2) is sleeved with a sleeve (5-12), the side end of the sleeve (5-12) is provided with a cleaning liquid output pipe (5-13), the cleaning liquid output pipe (5-13) is connected to a lateral inclined tube (5-13a), and the lateral inclined tube (5-13a) is sleeved on the sleeve (5-12).

5. A centrifuge with a discharging and flushing switching device according to claim 4, characterized in that: The outer contour and the inner contour of the sleeve (5-12) are both provided with a self-lubricating layer (5-12a).

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