CN2405654Y - Wet-type super-fine disintegrating sand grinder - Google Patents

Abstract

The utility model relates to a wet-type super-fine disintegrating sand grinder for the super-fine grinding industries of slurry, which is composed of a grinder frame (1), an aligning bearing (2), a mixer (3), a speed reducer (4), a lifting ring (5), a barrel body (6), a motor (7), a small belt pulley (8), a triangular belt (9), an aligning bearing (10), a big belt pulley (11) and a shaft joint (12), and the utility model is provided with a slurry circulating system. The sand grinder can have low energy consumption, can grind sand into a particle-size range of a submicron order, and can add additive at any time to obtain the material with the needed property.

Description

Wet type ultra-fine grinding sand mill

Wet type ultra-fine grinding sand mill of the present invention is applicable to the industry of slip being carried out extra-fine grinding, as industries such as magnetic material, paint, coating, printing ink, pigment, paper, agricultural chemicals, chemical fertilizer, medicine, cosmetics, powder metallurgy, food.

General milling machine and vibrator are that the heavy ball milling bucket that will ball-milling medium be housed is rotated or vibrates, like this energy consumption height; The particle size range that slip grinds is thin inadequately, thereby needs a kind of energy-efficient, crudy good, labour intensity is low sophisticated equipment of development.

Purpose of the present invention is exactly that raw material with multiple composition grinds in a hydrostatic column, and mix fully, the stirrer-driven abrasive media that rotates in the container, make polished material be ground to the particle size range of submicron order, thereby obtain the grinding-material of uniform precision desired properties.

A kind of sand mill that is made of frame (1), self-aligning bearing (2), agitator (3), reductor (4), hoisting ring (5), staving (6), motor (7), small belt pulley (8), V-belt (9), self-aligning bearing (10), big belt wheel (11), shaft coupling (12), its technical characterictic are to be fixed in frame (1) supporting staving (6), reductor (4) and the motor (7) on the basis; The shaft (19) of agitator (3) fixedly is connected on the bottom of shaft coupling (12), and the top of shaft coupling (12) fixedly is connected on the output shaft of reductor (4); The big belt wheel (11) of reductor (4) is connected on the small belt pulley (8) of motor (7) by the V-belt (9) of installing on it; The staving (6) that has cooling jacket is installed on the self-aligning bearing (2), and its top is equipped with that outlet pipe (13), bottom are equipped with water inlet pipe (15), bleeder valve (16), circulating pump (14) are connected in bleeder valve (16) and staving (6) by connecting pipe top is equipped with in the bottom.

The operation principle of this sand mill is: on the shaft (19) on the agitator (3), some stirring rod (20) are installed, these stirring rod (20) force ball-milling medium motion brokenly in whole grinding container staving (6) under power drive, this just causes the mutual bump between the ball-milling medium, effect of impact is transmitted again mutually, thereby the ball-milling medium in the entire container is all through being impacted, and the slip particle that is full of between the ball-milling medium is just cracked through being impacted inevitably, in addition, when ball-milling medium falls stirring rod (20) into after stirring during left space, also produce and roll, rotation, like this with regard to making the shearing force that the slip particle ground and attenuate, the comprehensive function of above impulsive contact force and shearing force, the slurry granularity is reduced and be evenly dispersed, this principle is dispersed variable grain material group and makes microcosmic and mix.

This crushing sand grinding machine mainly is made of frame (1), agitator (3), staving (6), slurry circulation system and electric control system.

Frame (1) is used for supporting grinding container staving (6), agitator (3), and through being welded, frame (1) is fixed on the basis frame (1) by shaped steel.

Agitator (3) is used for driving abrasive media, and it is made up of motor (7), reductor (4), driving belt (9), shaft (19), stirring rod (20).Shaft (19) has good antitorque deformation performance, and stirring rod (20) has good comprehensive mechanical performance, and there is higher hardness on its surface, so that it has than high-wearing feature, its core has high toughness again, so that it has higher anti-bending strength.

Staving (6) is the cylindrical tube of a band cooling jacket, its underpart is provided with the filtration grid, filtering grid is used for stoping abrasive media and thicker particle to pass through, and allow slip by so that circulate, downside is provided with the steel ball that steel ball outlet (17) is used for removal staving (6), the bottom is equipped with bleeder valve (16) and is used for discharging or carries out slurry circulation, is provided with stirring rod (20) in the staving (6), is used for the agitation grinding medium.

The slurry circulation system of staving (6) forms by filtering grid, bleeder valve (16), circulating pump (14) and duct coupling etc., this system is used for making slurry circulation to reduce milling time, after grinding end, conversion bleeder valve (16) handle can pass through this system's discharging.Electric control system is used for equipment is carried out centralized Control, and the electrical control cabinet of this machine adopts the wall-hanging structure, and each indicating meter, control button etc. are installed on the switch board panel, and A.C. contactor, auxiliary reclay, the time relay etc. are housed in the cabinet.Implement control by these buttons, element, instrument to equipment.

Be provided with low speed, high-speed transitions device in the control circuit, be provided with the circulating pump starting drive, be provided with mixing timer in the circuit, the control high-speed stirred time.

The advantage of this sand mill is as follows:

1, input power is directly used in the stirring ball-milling medium, reaching the purpose of grinding, and when the ball milling bucket rotation of ball-milling medium or vibration are housed, not only heavy energy consumption but also high, the energy consumption that this sand mill is processed material per ton approximately is half of general milling machine, is 1/3rd of vibrator.

2, this sand mill can be ground to slip the particle size range of submicron order, and general milling machine or vibrator are then powerless.

3, this sand mill is in any moment of each working cycles, operator's convenience sampling check easily can be grasped working condition at any time, also is convenient to the operator and finds out suitable, the most effective operating condition, to obtain uniform precision, the particle that distributes and comparatively concentrate.

4, also can add additive as required, so that material has required performance in any moment of work.

When 5, this sand mill was operated, labor intensity was low, and maintenance is convenient.

Now the accompanying drawing to this sand mill is explained as follows:

Fig. 1: this sand mill front view.Among the figure: (1) is frame, and (2) are self-aligning bearing, and (3) are shaft, and (4) are reductor, and (5) are hoisting ring, and (6) are staving.

Fig. 2: this sand mill side view.Among the figure: (1) is frame, and (4) are reductor, and (6) are staving, and (7) are motor.

Fig. 3: this sand mill transmission system schematic diagram.Among the figure: (7) are motor, and (8) are small belt pulley, and (9) are V belt, and (10) are self-aligning bearing, and (11) are big belt pulley, and (12) are shaft coupling.

Fig. 4: this sand mill circulatory system schematic diagram.Among the figure: (6) are staving, and (13) are outlet pipe, and (14) are circulating pump, (15) be water inlet pipe, (16) are bleeder valve, and (17) are the steel ball outlet, (18) be material in the staving, arrow A is a cooling water input water inlet pipe (15), and arrow D is a cooling water output outlet pipe (13); Arrow C 1, C2 and C3 be material at the circulation schematic diagram in pipeline and staving (6) under the effect of circulating pump (14), arrow B is the direction that steel ball draws off steel ball outlet (17).

Fig. 5: this sand mill agitator (3) structure chart.Among the figure: (4) are reductor, and (7) are motor, and (12) are shaft coupling, and (19) are shaft, and (20) are stirring rod.

Now the embodiment to this sand mill is described as follows:

1, the installation of equipment and adjustment

Frame (1) should be lifted on the ground that solid concrete casts, and tightens up four foundation bolts, and suitable space should be left in the installation place of frame (1); Lifting reductor (4) is tightened set bolt; Lifting motor (7) is installed transmission V belt (9) on small belt pulley (8) and big belt pulley (11); The bearing of shaft (19) is installed, staving (6) is installed, tighten the set bolt of block bearing (2), put into a small amount of steel ball about 2.5 millimeters, staving (6) tilting gearing is installed the end of apart from; The inclination grinding container is put into shaft (19), the grinding container that sets right, locking staving (6) positioner; Install shaft coupling, clean contact-making surface, clean down the shaft coupling contact-making surface, the shaft of slinging (3), and insert the clean friction plate of erasing; Go up installation at staving (6) and connect cooling water inlet pipe (15) and outlet pipe (13), the slurry circulation pipeline is installed, (as C1, C2 among Fig. 4 and the C3 direction of arrow) and circulating pump (14), parallel connection connects the slip pipeline.

Equipment is adjusted as follows:

A, tighten up each fastening bolt.

B, by belt tension requirement tensioning agitator driving belt (9).

C, the bolt of fastening shaft coupling (12) on request.

The power line phase sequence of d, adjustment motor (7) is so that motor (7) rotates in the desired direction.By the power line of main power control cabinet, every cross section should be 40 square millimeters, and is copper.

Select for use the high speed (H) of motor (7) and the rotating speed of low speed (L) to be respectively: 3000 rev/mins and 1500 rev/mins.Then, V-belt (9) by small belt pulley (8), big belt pulley (11) and installation on it is associated in reductor (4) deceleration, the high speed (H) of the stirring rod corresponding with it (20) and the output speed of low speed (L) are respectively: 56 rev/mins and 28 rev/mins, its reductor (4) is contained on the stirring rod (20) by worm gear, worm screw, and its speed reducing ratio is 20.Motor (7) high speed and low rotation speed ratio are 2: 1 like this, and the high speed of stirring rod (20) and the ratio of low speed also are 2: 1.Such rotating speed adjustment makes charging and discharging convenient, and slip is not easy precipitation.

2, the operation of equipment and use.

Inspection before the start is as follows:

Before a, the device power-up, should at first check to have or not reliable ground connection.

The bearing of b, inspection reductor (4), motor (7), shaft (19), whether shaft coupling (12) waits each set bolt to tighten, and whether belt (9) degree of tightness is suitable, and whether the rod pin of stirring rod (20) is fastening, and whether stirring rod (20) is loosening.

C, check that whether existing each oil site lubricated fully, whether the interior oil number of reductor (4), quantity meet the requirements.

Each protector wants normal in d, the electrical control cabinet.

Test run:

Confirm above-mentioned all normal after, can try the connection power supply, the low speed button of turn on agitator (3) carries out no-load running (have only seldom steel ball in the container this moment).Whether the observation agitator turns to correct, the anti-phase motor power phase sequence of then changing.

Observe the vibration of reductor (4), belt (9) and frame (1), note abnormalities and then answer the hard stop inspection, adjust.

After low speed is no abnormal, can take the high speed button off, make at a high speed rotation of agitator (3), and repeat above-mentioned observation, be sure of no abnormal after, change following operation over to:

Load test:

A, this sand mill install the back new reductor of reply (4) test run of loading, can load when the idle running fault-free, the phase I turned round 2 hours for loading 700 kilograms of steel balls, second stage loads 1400 kilograms of steel balls, turned round 2 hours, the phase III loads 2100 kilograms of steel balls, turns round 2 hours, the quadravalence section is loaded on rated capacity steel ball running 2 hours, observe decelerator (4) and have or not temperature rise to impact, anomalies such as vibration noise and leakage of oil, the discovery fault should be got rid of immediately.

B, decelerator (4) GB3141-N320 machinery oil bath lubrication, oiling must be at two oil level lines.

C, sand mill are installed and used back renew oil more in one week, make regular check on oily quality, must change at any time the oil of sneaking into impurity or aged deterioration.

D, find that temperature rise surpasses 80 ℃ or oil temperature and surpasses 100 ℃ in using, the quality of oil descends and when producing phenomenon such as abnormal noise, should stop using, and checks reason.

Clean:

For new steel ball and the staving (6) that uses first should clean, can in container, add 0.5～1.5 kilogram of neutral detergent, stirring at low speed 10 minutes, unlatching bleeder valve (16), put clean liquid after, close bleeder valve (16).

Put into the water grinding container and exceed the steel ball face, add 1.5 kilograms of kerosene, stirring at low speed 5 minutes is opened bleeder valve (16), puts clean liquid, closes bleeder valve (16), puts clear water and cleans repeatedly twice.

Pump testing:

Unloaded ON cycle pump (14), if having unusually, then shutdown inspection and adjustment.

Start;

A, adjust the high-speed stirred timer to the suitable time by technological requirement.

The time relay of the High-Speed Automatic commentaries on classics low speed of b, setting agitator (3) is to the suitable time.

C, take the low speed button of agitator (3) off, also running of agitator (3) low speed starting.

D, take the high speed button of agitator (3) off, reinforced, equipment just is in automatic load operation circulation, circulating pump (14) automatic time delay starts, after the startup, open bleeder valve (16), then slip circulates automatically, one-period work finishes, equipment control cabinet has sound and light alarm, and agitator (3) changes low cruise automatically over to, lifts the warning stop button, sound and light alarm all stops, and the discharging that changes circulating pump (14) this moment flows to can carry out discharging.In whole discharge process, the necessary low cruise of agitator (3), discharging finishes then can carry out next working cycles.

Stop:

Equipment should not have to stop under the situation of material in container under the normal condition, otherwise slip precipitates, and start very difficult next time, and might stop up circulating line, is difficult to the work of going again, and stopping procedure is opposite with driving.

3, the care and maintenance of equipment:

A, equipment should regularly replace lubricating oil.

B, reductor (4), motor (7), circulating pump (14) are answered time-based maintenance, break down and should keep in repair by each specification.

C, bring into use after two months, steel ball in the container thoroughly should be cleaned, sieves and reject too small and polygonal steel ball (as not rejecting, grid, arm are easy to wearing and tearing, the result that sieves should with the whole rejectings of  below 3.3 millimeters).

D, if the leading edge heavy wear of stirring rod (20), pin on the then desirable underarm, with arm Rotate 180 °, making not have the surface of wearing and tearing to turn over, and tightens up with locking outward, the arm of bottom should be checked once in every month.

Claims (5)

1, a kind of sand mill that constitutes by frame (1), self-aligning bearing (2), agitator (3), reductor (4), hoisting ring (5), staving (6), motor (7), small belt pulley (8), V-belt (9), self-aligning bearing (10), big belt wheel (11), shaft coupling (12), the frame (1) that its technical characterictic is to be fixed on the basis is supported with staving (6), reductor (4) and motor (7); The shaft (19) of agitator (3) fixedly is connected on the bottom of shaft coupling (12), and the top of shaft coupling (12) fixedly is connected on the output shaft of reductor (4); The big belt wheel (11) of reductor (4) is connected on the small belt pulley (8) of motor (7) by the V-belt (9) of installing on it; The staving (6) that has cooling jacket is installed on the self-aligning bearing (2), and outlet pipe (13) is equipped with on its top, and water inlet pipe (15) is equipped with in the bottom, bleeder valve (16) is equipped with in the bottom; Circulating pump (14) is connected on bleeder valve (16) and the staving (6) by connecting pipe.

2, sand mill according to claim 1, its technical characterictic are to have the staving (6) of cooling jacket, and its underpart is provided with the filtration grid, and downside is provided with steel ball outlet (17), is provided with stirring rod (20) in it, and bleeder valve (16) is equipped with in the bottom; Filter grid, bleeder valve (16), circulating pump (14) and duct coupling and form the slurry circulation system of staving (6).

3, sand mill according to claim 1, its technical characterictic are that motor (7) high speed and low rotation speed are respectively 3000 rev/mins and 1500 rev/mins, and corresponding high speed and the low rotation speed of its stirring rod (20) is respectively 56 rev/mins and 28 rev/mins.

4, sand mill according to claim 1, its technical characterictic are that reductor (4) is installed in stirring rod (20) by worm gear, worm screw, and its speed reducing ratio is 20.

5, sand mill according to claim 1, its technical characterictic are on the shaft (19) on the agitator (3) some stirring rod (20) to be installed.

Images