CN206474303U - Plate-type settling unloading under scraper centrifuge - Google Patents

Abstract

The utility model relates to a flat-plate sedimentation scraper bottom discharge centrifuge, which relates to a flat-plate sedimentation scraper bottom discharge centrifuge. It is mainly designed to solve the problems of low work efficiency of manual scraping of materials in the existing plate type sedimentation centrifuge. It includes a flat plate, a shock absorber, a motor, and a drum; the output shaft of the cover-opening control motor is connected to the casing through a connecting plate, and the casing has a liquid skimming device and a scraper device; the liquid skimming pipe has threads, and the liquid skimming pipe and the liquid skimming seat There is a screw nut in between, the annular gland is fixed on the skimmer seat, and there is a hand wheel on the screw nut; the scraper seat of the scraper device is fixed on the shell, the scraper lifting cylinder is fixed on the scraper seat, and the transmission block of the scraper lifting cylinder cylinder rod Inlaid in the transmission block installation groove of the scraper shaft, the scraper is installed at the lower end of the scraper shaft; the scraper rotating cylinder is fixed on the scraper seat, the scraper shaft is in sliding contact with the gear, the gear meshes with the rack on the cylinder rod of the scraper rotating cylinder, and the gear on the gear The key is inserted into the elongated keyway of the scraper shaft. The advantage is that the scraping speed is fast.

Description

Flat plate sedimentation scraper bottom discharge centrifuge

Technical field:

The utility model relates to a centrifuge used for solid-liquid or liquid-liquid separation, in particular to a flat plate type sedimentation scraper bottom discharge centrifuge.

Background technique:

A centrifuge is a machine that uses centrifugal force to separate components in a mixture of liquid and solid particles or liquid and liquid. The centrifuge is mainly used to separate the solid particles in the suspension from the liquid; or to separate two different densities and immiscible liquids in the emulsion. According to the characteristics of different sedimentation speeds of solid particles of different densities or particle sizes in liquids, decanter centrifuges can classify solid particles according to density or particle size, and separate solid particles with small particle sizes from liquid phase. Centrifuges are widely used in chemical industry, petroleum, food, pharmaceutical, mineral processing, coal, water treatment and shipbuilding and other departments.

In the existing flat-plate decanter centrifuge, after the centrifugation operation is completed, the material sticks to the wall of the drum, which requires manual scraping, which is labor intensive and low in efficiency. The liquid skimmer is controlled by a cylinder, and has a complicated structure and high manufacturing cost. In addition, because the rotating drum is arranged in the shell, it is inconvenient to clean and maintain the rotating drum.

Invention content:

The technical problem to be solved by the utility model is to provide a kind of material that can be conveniently and quickly pasted on the wall of the drum with a spatula, the cleaning and maintenance of the drum is convenient, and the liquid skimming device has a simple structure. .

The above purpose is achieved in this way: it includes a flat plate, a shock absorber is fixed on the bottom of the flat plate, the motor is mounted on the flat plate, the drum is mounted on the drum shaft, the drum shaft is mounted on the flat plate through a bearing, and the power output shaft of the motor is mounted on the flat plate. The pulley is connected to the pulley on the drum shaft through a belt, and the bottom of the drum is provided with a discharge port; the feature is: there is a cover opening control motor on the flat plate, and a connecting plate is fixed on the output shaft of the cover opening control motor. The shell outside the drum is connected to the other end of the connecting plate. There is a long hole on the top of the shell. Opening the cover controls the motor to work, which can drive the shell to rotate 90°, so that the shell can be opened or buckled. The shell is equipped with a skimming device and a scraper. device;

The skimming device includes a skimming tube and a skimming seat. The front end of the skimming tube extends into the drum through the elongated hole on the top of the shell, and the rear end of the skimming tube protrudes from the skimming seat. The skimming seat is fixed on the shell, the outer wall of the skimming tube is provided with threads, and there is a nut between the skimming tube and the skimming seat, and an annular boss is fixed on the outer wall of the front half of the nut, which is the diameter of the front half of the nut. Large, the diameter of the second half is small, the nut is installed in the skimmer seat, and the annular boss on the nut is in sliding contact with the inner wall of the skimmer seat, and the second half of the nut protrudes from the skimmer seat, including the ring Gland, the ring-shaped gland is fixed on the rear end of the skimmer seat, the inner wall of the ring-shaped gland is in sliding contact with the second half of the nut, and a handwheel is fixed on the nut behind the ring-shaped gland. There is a nut at the rear, and the nut is fitted with the thread of the skimming pipe;

The scraper device includes a scraper seat, the scraper seat is fixed on the shell, the cylinder body of the scraper lifting cylinder is fixed on the scraper seat, the lower part of the cylinder rod of the scraper lifting cylinder is fixed with a transmission block, and the upper part of the scraper shaft is provided with a transmission block installation groove, The transmission block at the lower part of the cylinder rod of the scraper lifting cylinder is embedded in the transmission block installation groove of the scraper shaft, the transmission block is in sliding contact with the side wall of the transmission block installation groove, the lower end of the scraper shaft extends into the drum, and the scraper is mounted on the At the lower end of the scraper shaft, the scraper lifting cylinder works to drive the scraper to move up and down; it also includes a scraper rotating cylinder. The cylinder body of the scraper rotating cylinder is fixed on the scraper seat. There is a long keyway, the scraper shaft is set with a gear, the scraper shaft is in sliding contact with the inner wall of the gear, the gear is meshed with the rack, the gear is fixed with a key, and the key fixed on the gear is inserted into the long keyway on the scraper shaft Among them, the scraper rotates the cylinder to work, driving the rack to extend or retract, and the movement of the rack drives the gear to rotate. Since the key on the gear is inserted into the keyway of the scraper shaft, the rotation of the gear can drive the rotation of the scraper shaft.

A sliding sleeve can be arranged between the scraper shaft and the gear, the scraper shaft is in sliding contact with the sliding sleeve, and the sliding sleeve is fixed to the gear.

A gear seat can be arranged below the gear, the gear is placed on the gear seat, and the gear seat is fixed on the scraper seat.

The utility model has the advantages that: since there is a cover-opening control motor, the shell is connected with the output shaft of the cover-opening control motor through a connecting plate, so the shell can be opened by 90° rotation, completely exposing the drum to facilitate cleaning of the drum and maintenance. Because of the skimming device, turn the hand wheel to drive the nut and nut to rotate. Since the annular gland is fixed on the skimmer seat, and the skimmer seat is fixed on the upper cover, the nut and nut can only rotate and cannot be rotated. The rotation of the screw nut and the nut drives the skimming tube to move axially, so that the skimming tube completes the process of gradually moving from the center to the drum wall. The structure is simple, the production cost is low, and the maintenance is convenient. Due to the scraper device, the lift of the scraper is controlled by the scraper lift cylinder, and the swing of the scraper is controlled by the scraper rotation cylinder, which can automatically scrape clean the materials pasted on the drum wall, with fast scraping speed and high work efficiency.

Description of drawings:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the sectional structure schematic diagram of the skimming device in the enlarged utility model;

Fig. 3 is an enlarged schematic cross-sectional structure diagram of the scraper device in the present invention.

detailed description:

Referring to Figure 1, it includes a plate 1, a shock absorber 2 is fixed at the bottom of the plate, a motor 3 is mounted on the plate, a drum 4 is mounted on the drum shaft, the drum shaft is mounted on the plate through a bearing, and the power output shaft of the motor 3 The pulley on the top is connected with the pulley on the drum shaft through a belt, and the bottom of the drum is provided with a discharge port 5; it is characterized in that: a cover-opening control motor 6 is also provided on the flat plate, and a connecting motor is fixed on the output shaft of the cover-opening control motor. Plate 7, shell 8 covered outside the drum is connected with the other end of the connecting plate, the top of the shell is provided with a long hole, the motor is opened to control the operation of the cover, which can drive the shell to rotate 90 °, so that the shell is opened or buckled, and the shell is provided with There are skimming device 10 and scraper device 9;

Referring to Figure 2, the skimming device 10 includes a skimming tube 10-1 and a skimming seat 10-2, the front end of the skimming tube extends into the drum through the elongated hole on the top of the shell, and the skimming tube The rear end of the skimmer protrudes from the skimming seat, the skimming seat is fixed on the shell, the outer wall of the skimming tube is provided with threads, and a silk nut 10-3 is arranged between the skimming tube and the skimming seat, and the outer wall of the front half of the silk nut is An annular boss is fixed on the top, that is, the diameter of the front half of the nut is large, and the diameter of the rear half is small. The half protrudes from the skimming seat, and also includes an annular gland 10-4, the annular gland is fixed on the rear end of the skimming seat, and the inner wall of the annular gland is in sliding contact with the rear half of the nut, A hand wheel 10-5 is fixed on the screw nut at the rear of the annular gland, and a nut 10-6 is arranged behind the hand wheel, and the nut is fitted with the thread of the skimming pipe;

Referring to Figure 3, the scraper device 9 includes a scraper seat 9-1, the scraper seat is fixed on the shell, the cylinder body of the scraper lifting cylinder 9-2 is fixed on the scraper seat, and the lower part of the cylinder rod of the scraper lifting cylinder is fixed with a transmission block 9-3, the upper part of the scraper shaft 9-4 is provided with a transmission block installation groove, and the transmission block at the lower part of the cylinder rod of the scraper lifting cylinder is embedded in the transmission block installation groove of the scraper shaft, and the side wall of the transmission block and the transmission block installation groove Sliding contact, the lower end of the scraper shaft extends into the drum, the scraper 9-5 is installed at the lower end of the scraper shaft, and the scraper lifting cylinder works to drive the scraper to move up and down; it also includes the scraper rotating cylinder 9-6, the cylinder body of the scraper rotating cylinder Fixed on the scraper seat, the cylinder rod of the scraper rotating cylinder is connected with a rack 9-7, and the outer wall of the scraper shaft is provided with a long keyway 9-8, and a gear 9-9 is set on the scraper shaft, and the scraper shaft and the gear The inner wall is in sliding contact, the gear meshes with the rack, and the gear is fixed with keys 9-10, and the fixed key on the gear is inserted into the long keyway on the scraper shaft, and the scraper rotates the cylinder to drive the rack to extend or retract , the movement of the rack drives the gear to rotate, and since the key on the gear is inserted into the keyway of the scraper shaft, the rotation of the gear can drive the rotation of the scraper shaft.

Sliding sleeves 9-11 can be established between the scraper shaft and the gear, the scraper shaft is in sliding contact with the sliding sleeve, and the sliding sleeve and the gear are fixed.

Gear base 9-12 can be established below the gear, the gear is placed on the gear base, and the gear base is fixed on the scraper seat.

Claims (3)

1. plate-type settling unloading under scraper centrifuge, including flat board（1）, flat plate bottom is fixed with damper（2）, motor（3） On flat board, rotary drum（4）On rotary drum axle, rotary drum axle is mounted on flat board by bearing, motor（3）On power output shaft Belt pulley is connected with the belt pulley on rotary drum axle by belt, and the bottom of rotary drum sets out material mouth（5）；It is characterized in that：On flat board also Provided with controlled motor of uncapping（6）, connecting plate is fixed with the output shaft for controlled motor of uncapping（7）, the shell covered on outside rotary drum（8）With The other end connection of connecting plate, cover top portion is provided with elongated hole, and shell is provided with liquid skimming device（10）And doctor blade device（9）；

Described liquid skimming device（10）Including skimming liquid pipe（10—1）With slash liquid seat（10—2）, described slash liquid pipe front end is through shell The elongated hole at top is extend into rotary drum, is skimmed the rear end of liquid pipe from stretching in liquid seat is skimmed, is skimmed liquid seat and be fixed on shell, skim liquid pipe Outer wall is provided with screw thread, skims and is provided with screw between liquid pipe and slash liquid seat（10—3）, convex annular is fixed with screw first half outer wall Platform, screw mounted in skim liquid seat in, wherein the annular boss on screw with skim liquid seat inwall sliding contact, screw it is latter half of from slash Stretched out in liquid seat, include the gland of annular（10—4）, the annular gland be fixed on skim liquid seat rear end, annular pressure The latter half of sliding contact of lid inwall and screw, handwheel is fixed with the screw at the gland rear of annular（10—5）, handwheel Rear be provided with nut（10—6）, the nut is with skimming the cooperation installation of liquid pipe screw thread；

Described doctor blade device（9）Including scraper base（9—1）, scraper base is fixed on shell, scraper lift cylinder（9—2）'s Cylinder body is fixed on scraper base, and the cylinder rod bottom of scraper lift cylinder is fixed with drive block（9—3）, blade shaft（9—4）Top Drive block mounting groove is offered, the drive block of described scraper lift cylinder cylinder rod bottom is embedded in the drive block installation of blade shaft In groove, drive block is contacted with the side walls of drive block mounting groove, and the lower end of blade shaft is extend into rotary drum, scraper（9—5）Dress In the lower end of blade shaft；Also include scraper rotation cylinder（9—6）, the cylinder body of scraper rotation cylinder is fixed on scraper base, scraper Rack is connected with the cylinder rod of rotation cylinder（9—7）, elongated key slot is provided with the outer wall of blade shaft（9—8）, cover on blade shaft Provided with gear（9—9）, blade shaft and gear inwall sliding contact, the wheel and rack engagement is fixed with key on gear（9— 10）, fixed key is inserted into the elongated key slot on blade shaft on gear.

2. according to the plate-type settling unloading under scraper centrifuge described in claim 1, it is characterized in that：Blade shaft and gear it Between set sliding sleeve（9—11）, blade shaft and sliding sleeve sliding contact, sliding sleeve fixes with gear.

3. according to the plate-type settling unloading under scraper centrifuge described in claim 1 or 2, it is characterized in that：Set below gear Pinion stand（9—12）, gear is placed on pinion stand, and pinion stand is fixed on scraper base.