CN103341383A - Dry-method sand manufacturing machine - Google Patents

Abstract

The invention relates to the technical field of sand manufacturing equipment, and particularly relates to a dry-method sand manufacturing machine. The dry-method sand manufacturing machine comprises a feeding port, an upper shell, a lower shell, grinding rollers, a grinding disc, a support, an overhauling device, an inner screening device, a working cylinder, a scraper blade, a discharge port, a reduction box, a coupler, a main motor and foundation bolts, wherein the feeding port is arranged in the central position of the upper part of the upper shell, the discharge port is arranged on a bottom plate of the lower shell, the grinding rollers are uniformly distributed on the grinding disc, the inner screening device is fixed on the upper shell through a regulating device, and the support can support the grinding rollers, the upper shell and the lower shell and is connected with a base through the foundation bolts. The dry-method sand manufacturing machine provided by the invention has the advantages that the sand grade is conveniently regulated through regulating the size of grinding force of the grinding rollers and a gap between a moving ring and a static ring, the reasonable fineness modulus is controlled, and the content of mountain flour in machine-made sand is regulated; meanwhile, few needle-shaped and sheet sand is manufactured by the machine under the action of a grinding force and a shear force, and the machine-made sand is good in particle shape; in addition, by virtue of a dry method for manufacturing, the appropriate mountain flour content in machine-made sand is remained, the grade of the machine-made sand is optimized, and meanwhile, the water resource is saved.

Description

A kind of dry method sand machine processed

Technical field

The present invention relates to sand equipment technical field processed, particularly relate to a kind of dry method sand machine processed.

Background technology

Along with the pulling of domestic demand, the various places highway, the input of capital construction such as railway increases day by day, presses for a large amount of sandstones.In order to protect the ecological balance, country expressly forbids excavating without authorization natural sand (except the cleaning river course).Natural sand does not catch up with demand greatly for amount.Therefore, the exploitation of machine-processed sand has just very placed on the agenda urgently.In view of after machine-processed sand is rock blasting, form through Mechanical Crushing and screening through Mechanical Crushing or cobble, performances such as its intensity are all superior than natural sand.On the other hand, some metal and non-metal mine produce a large amount of mine tailings in mining and process, press for comprehensive utilization.

Sand equipment processed has jaw crusher, impact breaker, centrifugal impact crusher, cone crusher, vibrating screener, multi-functional drum sieve etc. at present; Be divided into two kinds in dry method sand processed and wet method sand processed by production method.The main Quality that present machine-processed sand equipment sand processed exists in producing:

A, the grain type bad, the faller gill shape is too much, and the rock problem is arranged here, but main be that lectotype selection causes, be that jaw crusher or hammer mill cause.

B, grating are not exclusively reasonable, and modulus of fineness is bigger than normal, and most enterprises reduce production costs for reducing mechanical wear, and the machine-processed grain fineness number modulus of production mostly is more than 3.0, and the concrete batching modulus of fineness is preferably in about 2.6.

The stone flour that c, wet method sand processed exist is the problem of washing away all.The mud powder is harmful to for concrete batching, must strictly control its content, to note equally except soil in machinery sand production processed and the use, remove mountain skin soil and interlayer soil, but must not be placed on the operation of washing off at last less than the particle of 75 μ m except soil, because stone flour also is the particle less than 75 μ m, but stone flour is different with the mud composition in the natural sand, the particle diameter distribution is different, role is also different in concrete, stone flour is useful to concrete, the existence of an amount of stone flour is arranged, remedied the shortcoming of machine-processed sand concrete batching workability difference.Adopt the last washing process in the wet production, that washes away is not only earth, simultaneously, has also washed away useful stone flour, has destroyed the grating of sand.

Summary of the invention

The present invention proposes at the problems referred to above, provides a kind of dry method sand machine processed.

The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: a kind of dry method sand machine processed, by charging aperture, upper shell, lower house, milling roller, roll dish, bearing, apparatus for examination and repair, inner sieving mechanism, working cylinder, scraper plate, discharging opening, reductor, shaft coupling, main motor, foundation bolt is formed, charging aperture is arranged on the center on upper shell top, discharging opening is on the base plate of lower house, milling roller is evenly distributed in upper shell and rolls on the dish, inner sieving mechanism is fixed on the upper shell by adjusting device, the bearing support milling roller, the weight of upper shell and lower house, bearing links to each other with the basis by foundation bolt.

The wear-resisting roller shell of described milling roller outer setting, roller shell adopt rich chromium cast iron or steel-casting to add resurfacing welding material.

The described dish that rolls is gone up the preparation abrasion-proof backing block, and liner plate is by many combinations, and liner material quality is that rich chromium cast iron or steel-casting add resurfacing welding material, rolls dish and links to each other with the reductor output flange, and motor drives reductor by shaft coupling and mill rotates together.

Described inner sieving mechanism is made up of screen frame (unit), sieve sheet, stationary ring, and it is fixed on the upper body by adjusting device.

Abrasion-proof backing block is equipped with in described upper shell inside, and liner material quality is 16Mn or casting wear-resistant liner plate.

The abrasionproof liner plate is equipped with in described lower house inside, and liner plate is the casting wear-resistant plate.

Described scraper plate is installed in the below of rolling dish.

Described apparatus for examination and repair is made up of maintenance hinged-support, maintenance cylinder.

Operation principle of the present invention is: the raw material that sand processed is used enters from upper shell central feeding mouth, rolling dish rotates together by the driven by motor reductor, material is under the grinding pressure and shearing force effect of milling roller, material is earlier broken again through the shearing force shaping of milling roller through rolling of milling roller, make material become the discharge gate that fine grained forms from the rotating ring that rolls the dish outside and the stationary ring on the inner sieving mechanism and be discharged into lower case, and the part bulk materials that escape in the milling roller gap without fragmentation is got back to by the inner sieving mechanism retaining and is rolled in the dish, continue grinding and enter lower case to qualified sand material, the sand material that enters lower house draws off at the discharging opening from the lower house under the effect of scraper plate.The grinding pressure of milling roller pressurizes by master cylinder in addition, and this pressure can be adjusted arbitrarily, and grinding of raw materials speed to be the gap length that rotating ring by rolling the dish outside and the stationary ring on the inner sieving mechanism are formed adjust.

Beneficial effect of the present invention: size and rotating ring and the stationary ring gap of the rolling pressure by adjusting milling roller, can adjust sand-grading easily, control rational modulus of fineness, adjusted the content of stone powder in the machine-processed sand, simultaneously under grinding pressure and shearing force effect, the machine-processed sand faller gill shape of producing is less, and particle shape is good.The present invention has controlled content of stone powder suitable in the machine-processed sand by dry production in addition, has optimized the grating of machine-processed sand, has saved water resource simultaneously.

Description of drawings

Fig. 1 is structural representation of the present invention

Fig. 2 is the structural representation of inner sieving mechanism

Among the figure, 1 upper shell, 2 charging apertures, 3milling rollers 4roll dish 5 bearings 6 apparatus for examination andrepair 7working cylinders 8scraper plates 9inner sieving mechanisms 10discharging openings 11reductors 12shaft couplings 13motors 14 rotatingrings 15lower houses 16 foundation bolts 17 stationary rings 18 screen frame (unit)s 19sieves 20 adjusting devices

The specific embodiment

As Fig. 1, shown in Figure 2, a kind of dry method sand machine processed is by upper shell (1), charging aperture (2), milling roller (3), roll dish (4), bearing (5), apparatus for examination and repair (6), working cylinder (7), scraper plate (8), inner sieving mechanism (9), discharging opening (10), reductor (11), shaft coupling (12), motor (13), rotating ring (14), lower house (15), foundation bolt (16) is formed, charging aperture (2) is arranged on the center on upper shell (1) top, discharging opening (10) is on the base plate of lower house (15), milling roller (3) is evenly distributed in upper shell (1) and rolls on the dish (4), inner sieving mechanism (9) is fixed on the upper shell (1) by adjusting device (20), bearing (5) supporting milling roller (3), the weight of upper shell (1) and lower house (15), bearing (5) links to each other with the basis by foundation bolt (16).

The wear-resisting roller shell of described milling roller (3) outer setting, roller shell adopt rich chromium cast iron or steel-casting to add resurfacing welding material.

The described dish (4) that rolls is gone up the preparation abrasion-proof backing block, liner plate is by many combinations, liner material quality is that rich chromium cast iron or steel-casting add resurfacing welding material, rolls dish (4) and links to each other with reductor (11) output flange, and motor (13) drives reductor (11) by shaft coupling (12) and rolls dish (4) and rotate together.

Described inner sieving mechanism (9) is made up of screen frame (unit) (18), sieve (19), stationary ring (17), and it is fixed on the upper shell (1) by adjusting device (20).

Abrasion-proof backing block is equipped with in described upper shell (1) inside, and material is 16Mn or casting wear-resistant liner plate.

The abrasionproof liner plate is equipped with in described lower house (15) inside, and liner material quality is the casting wear-resistant liner plate.

Described scraper plate (8) is installed in and rolls dish (4) below, and liner material quality is the casting wear-resistant plate.

Described apparatus for examination and repair (6) is made up of maintenance hinged-support, maintenance cylinder.

Operation principle of the present invention is: the raw material that sand processed is used enters from upper shell (1) central feeding mouth, rolling dish (4) rotates together by motor (13) drive reductor (11), material is under the grinding pressure and shearing force effect of milling roller (3), material earlier rolls fragmentation again through the shearing force shaping of milling roller (3) through milling roller (3), make material become fine grained and be discharged into lower house (15) from the rotating ring (14) that rolls dish (4) outside and the discharge gate of the composition of the stationary ring (17) on the inner sieving mechanism (9), and part is got back to by inner sieving mechanism (9) retaining without broken and bulk materials that escape from milling roller (3) gap and is rolled in the dish (4), continue grinding and enter lower house (15) to qualified sand material, the sand material that enters lower house (15) draws off at the discharging opening (10) from the lower house (15) under the effect of scraper plate (8).The grinding pressure of milling roller (3) pressurizes by working cylinder (7) in addition, this pressure can be adjusted arbitrarily, and grinding of raw materials speed to be rotating ring (14) by rolling dish (4) outside and the gap length of the composition of the stationary ring (17) on the inner sieving mechanism (9) adjust.

Claims (2)

1. dry method sand machine processed, it is characterized in that: by charging aperture, upper shell, lower house, milling roller, roll dish, bearing, apparatus for examination and repair, inner sieving mechanism, working cylinder, scraper plate, discharging opening, reductor, shaft coupling, main motor, foundation bolt is formed, charging aperture is arranged on the center on upper shell top, discharging opening is on the base plate of lower house, milling roller is evenly distributed in upper shell and rolls on the dish, inner sieving mechanism is fixed on the upper shell by adjusting device, the bearing support milling roller, the weight of upper shell and lower house, bearing links to each other with the basis by foundation bolt.

2. a kind of dry method as claimed in claim 1 sand machine processed is characterized in that: described inner sieving mechanism is made up of screen frame (unit), sieve sheet, stationary ring, and it is fixed on the upper shell by adjusting device.

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