CN210304008U

CN210304008U - Dry-process fine sand making line

Info

Publication number: CN210304008U
Application number: CN201920685387.7U
Authority: CN
Inventors: 王曙东
Original assignee: Jiangsu Wolves Intelligent Technology Co ltd
Current assignee: Jiangsu Wolves Intelligent Technology Co ltd
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2020-04-14
Anticipated expiration: 2029-05-14

Abstract

The utility model belongs to the technical field of dry process system sand, especially, relate to a dry process fine work system sand line, including system sand machine, the lifting machine, the shale shaker, fine sand air separation hopper and dust remover, system sand machine is used for crushing ore material, and carry the ore material after the breakage to the shale shaker through the lifting machine, the shale shaker is tertiary sieve, it is including the first screen cloth that from top to bottom sets up, second screen cloth and third screen cloth, first screen cloth passes through coarse sand and goes out the feed inlet that hopper connects system sand machine, the second screen cloth is connected with the medium sand and goes out the hopper, the fine sand air separation hopper is connected to third screen cloth below, the medium sand goes out the hopper and is connected with the feed inlet of system sand machine and the discharge gate of fine sand air separation hopper respectively through the three-way valve, main air intake and air outlet have been seted up on the lateral wall of fine sand air separation hopper. Has the advantages that: the utility model discloses a dry process fine work system sand line satisfies the demand of market to multiple specification dry sand, and simple structure is reliable, and area is little, and is with low costs, the simple operation.

Description

Dry-process fine sand making line

Technical Field

The utility model belongs to the technical field of the dry process system sand, especially, relate to a dry process fine work system sand line.

Background

With the continuous development of large-scale projects such as railway construction, highway construction, hydraulic engineering and the like, industries such as buildings and the like are rapidly developed. The market demand for sand aggregates is constantly rising. The natural sand resource is increasingly scarce and far from meeting the market demand. Many areas restrict and prohibit the production of natural sand. The machine-made sand and the artificial sand gradually become main sources of sand aggregates in the market. Nowadays, the artificial sand making technology is mature day by day, and the production of machine-made sand by adopting sand making machine equipment is very convenient.

The machine-made sand has different particle sizes and different purposes, for example, the conventional range of the machine-made sand for dry powder mortar is 0-2.36 mm, and the conventional range of the machine-made sand for concrete is 0-4.75 mm. The existing sand making machine only can make dry sand of one specification, and the existing sand making machine cannot meet the requirements of the existing market.

SUMMERY OF THE UTILITY MODEL

For the single problem of the system sand specification of the system sand machine that solves prior art existence, the utility model provides a dry process fine work system sand line.

In order to solve the technical problem, the technical proposal adopted by the utility model is that the dry-method fine sand making line comprises a sand making machine, a hoisting machine, a vibrating screen, a fine sand winnowing hopper and a dust remover, wherein the sand making machine is used for crushing ore materials, and the crushed ore materials are conveyed to a vibrating screen by a lifter, the vibrating screen is a three-stage screen, which comprises a first screen, a second screen and a third screen arranged from top to bottom, wherein the first screen is connected with a feed inlet of the sand making machine through a coarse sand discharge hopper, the second screen is connected with a medium sand discharge hopper, the lower part of the third screen is connected with the fine sand winnowing hopper, the medium sand discharge hopper is respectively connected with a feed inlet of the sand making machine and a discharge outlet of the fine sand winnowing hopper through a three-way valve, the side wall of the fine sand winnowing hopper is provided with a main air inlet and an air outlet, and the dust remover is connected with the air outlet through an air outlet pipe.

Preferably, reinforcing strips are arranged in the coarse sand discharging hopper and the medium sand discharging hopper. The strength that the coarse sand goes out the hopper and well sand play hopper is effectively strengthened to the enhancement strip, prevents that coarse sand goes out the hopper and well sand goes out the hopper ware and is pierced through in long-time wearing and tearing.

Preferably, the coarse sand discharge hopper and the medium sand discharge hopper are fixedly connected, and feed inlets of the coarse sand discharge hopper and the medium sand discharge hopper are separated through a partition plate. The partition plate separates coarse grain size materials and medium grain size materials, and reduces the volume of the coarse sand discharge hopper and the medium sand discharge hopper.

Preferably, the fine sand winnowing hopper comprises a hopper-shaped shell formed by two first side plates and two second side plates, the two second side plates are arranged oppositely, the air outlet is formed in one of the second side plates, the main air inlet is formed in the other second side plate, the first side plate is internally and horizontally provided with a material baffle plate, and the outer side of the bottom of the first side plate is further provided with a side air inlet. Siphon inlets are formed in two sides of the main air inlet, and air is supplemented by using a siphon effect, so that an air supplementing effect is greatly improved.

Further, the striker plate is fixedly connected to the first side plate through a plurality of bulk cargo plates. The striker plate and the bulk cargo plate are arranged so that the inner wall of the first side plate does not directly slide down after falling to the striker plate and the bulk cargo plate, but the inner wall floats down from the middle of the fine sand winnowing hopper, so that the winnowing effect is enhanced.

Further, be provided with the gentle wind district on the second curb plate that has the air outlet, the gentle wind district is located the below of air outlet, the below in gentle wind district is provided with vibrating motor. The air speed of the main air inlet is reduced by enlarging the internal volume of the air buffering area, materials with small and medium particle sizes are prevented from being sucked away, and the vibration motor prevents the materials from accumulating to block the air outlet.

Furthermore, a plurality of wear-resisting plates are sequentially arranged on the inner side wall of the fine sand winnowing hopper from top to bottom, the included angle between the wear-resisting plates and the inner side wall of the fine sand winnowing hopper is α, the opening at the α angle faces to the feeding hole of the fine sand winnowing hopper, the wear-resisting plates are fully distributed around, the inner side wall of the fine sand winnowing hopper is prevented from being directly worn with materials, and the service life of the fine sand winnowing hopper is greatly prolonged.

Further, the bottom of the dust remover is provided with a powder collecting bin, a chimney is arranged on the dust remover, and a draught fan of the dust remover is provided with a regulating damper or a frequency converter. The dust is adsorbed by wind power of the dust remover, the adsorbed dust is retained in the powder collecting bin, and waste gas is discharged through a chimney, so that the dust content in machine-made sand is reduced, the induced draft fan is used as a power device for dust movement, the air quantity of the induced draft fan is adjusted through an air adjusting door or a frequency converter, and the stone powder content in fine sand of the fine sand winnowing hopper can be adjusted.

Has the advantages that: the utility model discloses a dry process fine work system sand line, when the dry sand that needs 0 ~ 2.36mm is used as the dry powder mortar, the second screen cloth returns the medium sand material after the screening through medium sand play hopper and carries out the secondary crushing system sand for system sand machine, and the three-way valve communicates with the feed inlet of system sand machine this moment, and it cuts off with the discharge gate of fine sand air separator, and the discharge gate of fine sand air separator obtains the dry sand of first specification; when dry sand with the thickness of 0-4.75 mm is needed to be used as concrete, the screened medium sand material is communicated with a discharge hole of a fine sand winnowing hopper through a medium sand discharge hopper by a second screen, at the moment, a three-way valve is communicated with the discharge hole of the fine sand winnowing hopper and separated from a feed hole of a sand making machine, and the medium sand material is mixed with the fine sand material to obtain the dry sand with a second specification; the utility model discloses a dry process fine work system sand line through the fine sand winnowing hopper pollen removal, has simple structure, consumes energy low, with low costs and the little advantage of area.

Drawings

FIG. 1 is a schematic structural view of a fine sand making line by a dry method of the present invention;

FIG. 2 is a schematic structural view of the vibrating screen of the fine sand making line by the dry method of the present invention;

FIG. 3 is a schematic view of the structure of the dry fine sand production line of the present invention in which the coarse sand discharge hopper and the medium sand discharge hopper are engaged;

FIG. 4 is a schematic structural view of a fine sand winnowing hopper of the fine sand line of the dry fine sand making line of the present invention;

FIG. 5 is an enlarged partial schematic view of A in FIG. 4;

FIG. 6 is another angle structure diagram of the fine sand winnowing hopper of the fine sand line of the dry fine sand making line of the utility model;

FIG. 7 is a schematic top view of the fine sand winnowing hopper of the fine sand line for fine sand production by the dry method of the present invention;

in the figure, the sand making machine 1, the sand making machine 2, the hoister 3, the vibrating screen 31, the first screen, 32, the second screen, 33, the third screen, 4, the coarse sand discharge hopper 41, the reinforcing strips 42, the partition plates 5, the middle sand discharge hopper 51, the three-way valve 6, the fine sand air separation hopper 61, the first side plate 611, the side air inlet 62, the second side plate 621, the main air inlet 622, the siphon port 623, the air outlet 63, the air buffering area 64, the vibrating motor 65, the material baffle plate 651, the bulk material plate 66, the wear-resisting plate 7, the dust remover 71, the air outlet pipe 72, the powder collecting bin 73, the chimney 74 and the induced draft fan, and the included angle between the wear-resisting plate and the inner side wall of the fine sand air separation hopper is α.

Detailed Description

Examples

As shown in fig. 1 to 7, a dry fine sand making line comprises a sand making machine 1, a lifter 2, a vibrating screen 3, a fine sand winnowing hopper 6 and a dust remover 7, wherein the sand making machine 1 is used for crushing ore materials, and the crushed ore materials are conveyed to a vibrating screen 3 by a lifter 2, the vibrating screen 3 is a three-stage screen, which comprises a first screen 31, a second screen 32 and a third screen 33 arranged from top to bottom, the first screen 31 is connected with the feed inlet of the sand making machine 1 through a coarse sand discharge hopper 4, the second screen 32 is connected with a medium sand discharge hopper 5, the fine sand winnowing hopper 6 is connected below the third screen 33, the medium sand discharging hopper 5 is respectively connected with the feed inlet of the sand making machine 1 and the discharge outlet of the fine sand winnowing hopper 6 through a three-way valve 51, a main air inlet 621 and an air outlet 623 are formed in the side wall of the fine sand air separation hopper 6, and the dust remover 7 is connected with the air outlet 623 through an air outlet pipe 71; the dust remover 7 selects the bag type pulse dust remover 7, the bottom of the dust remover 7 is provided with a powder collecting bin 72, the dust remover 7 is provided with a chimney 73, an induced draft fan 74 of the dust remover 7 is provided with an air damper or a frequency converter, dust is adsorbed by wind power of the dust remover 7, the adsorbed dust is retained in the powder collecting bin 72, waste gas is discharged through the chimney 73, and therefore the dust content in machine-made sand is reduced, the induced draft fan 74 is used as a power device for dust movement, the air volume of the induced draft fan 74 is adjusted through the air damper or the frequency converter, and the stone powder content in fine sand of the fine sand air separation hopper 6 can be adjusted;

as shown in fig. 2 and 3, in order to reinforce the strength of the coarse sand discharging hopper 4 and the medium sand discharging hopper 5 and prevent the coarse sand discharging hopper 4 and the medium sand discharging hopper 5 from being penetrated by long-term abrasion, reinforcing bars 41 are arranged in the coarse sand discharging hopper 4 and the medium sand discharging hopper 5; in order to reduce the volume of the coarse sand discharge hopper 4 and the medium sand discharge hopper 5, the coarse sand discharge hopper 4 and the medium sand discharge hopper 5 are fixedly connected, and feed inlets of the coarse sand discharge hopper 4 and the medium sand discharge hopper 5 are separated through a partition plate 42, namely, the coarse grain size material and the medium grain size material are separated through the partition plate 42.

As shown in fig. 4 to 7, specifically, the fine sand winnowing hopper 6 comprises a hopper-shaped housing composed of two first side plates 61 and two second side plates 62, the two second side plates 62 are arranged oppositely, the air outlet 623 is arranged on one of the second side plates 62, the main air inlet 621 is arranged on the other second side plate 62, a side air inlet 611 is further formed in the outer side of the bottom of the first side plate 61, siphon openings 622 are formed in the two sides of the main air inlet 621 to supplement air by using a siphon effect in order to improve the air inlet effect of the main air inlet 621, an air supplementing effect is greatly improved in order to prolong the retention time of fine sand in the fine sand winnowing hopper 6 and enhance the winnowing effect, a material blocking plate 65 is horizontally arranged in the first side plate 61, the material blocking plate 65 is fixedly connected to the first side plate 61 through a plurality of material scattering plates 651, the arrangement of the material blocking plate 65 and the material blocking plate 651 enables the material blocking plate to fall to the material blocking plate 65 and the material blocking plate 651, the material blocking plate does not slide down directly along the inner wall of the first side plate 61, the inner wall of the material blocking plate 65 and the material blocking plate 66 is arranged to prevent the air outlet from falling from the inner side of the inner side wall of the inner side air inlet 3563 and the inner side wall of the fine sand winnowing motor, the inner side plate 70, the inner side wall of the inner side plate, the inner side wall of the inner side plate 70, the inner side plate 70 is arranged to prevent the inner side plate from.

The working principle is as follows:

after the ore material is crushed by the sand making machine 1, the crushed ore material is conveyed to the vibrating screen 3 through the hoister 2, the screened coarse sand material is directly returned to the sand making machine 1 through the coarse sand discharge hopper 4 by the first screen 31 to be subjected to secondary crushing and sand making, the fine sand material screened by the third screen 33 falls into the fine sand air hopper 6, the fine sand material enters the fine sand air hopper 6 to collide with the baffle plate 65 and the bulk material plate 651, mixed dust in the fine sand material is raised, the retention time of the fine sand material in the fine sand air hopper 6 is prolonged, meanwhile, due to the existence of the main air inlet 621, the side air inlet 611 and the air outlet 623 of the dust remover 7, negative pressure is formed through the air suction and air outlet 623 of the dust remover 7, the dust adsorbed by wind power is retained in the powder collecting bin 72, waste gas generated by the dust remover 7 is discharged through the chimney 73, so that the dust content in machine-made sand is reduced, the induced draft fan 74 is used as a power device for dust movement, the air quantity of the induced draft fan 74 is adjusted through an air adjusting door or a frequency converter, so that the stone powder content in the fine sand material of the fine sand winnowing hopper 6 can be adjusted; the air inlet 611 on the bottom side enters air due to negative pressure to form downward-upward convection in the fine sand winnowing hopper 6, so that dust on the bottom can be lifted up again for powder removal; after the powder is removed, the fine sand meeting the requirements enters the next procedure from the discharge hole of the fine sand winnowing hopper 6 through free falling bodies;

when dry sand with the thickness of 0-2.36 mm is required to be used as dry powder mortar, the screened medium sand material is returned to the sand making machine 1 through the medium sand discharge hopper 5 by the second screen 32 for secondary crushing and sand making, at the moment, the three-way valve 51 is communicated with a feed inlet of the sand making machine 1 and is separated from a discharge outlet of the fine sand air separation hopper 6, and the dry sand with the first specification is obtained at the discharge outlet of the fine sand air separation hopper 6; when dry sand with the thickness of 0-4.75 mm is required to be used as concrete, the screened medium sand material is communicated with the discharge hole of the fine sand winnowing hopper 6 through the medium sand discharge hopper 5 by the second screen 32, the three-way valve 51 is communicated with the discharge hole of the fine sand winnowing hopper 6 and is separated from the feed hole of the sand making machine 1, and the medium sand material and the fine sand material are mixed to obtain the dry sand with the second specification.

Claims

1. The utility model provides a dry process fine work system sand line which characterized in that: including system sand machine (1), lifting machine (2), shale shaker (3), fine sand air hopper (6) and dust remover (7), system sand machine (1) is used for the ore material breakage to carry the ore material after the breakage to shale shaker (3) through lifting machine (2), shale shaker (3) are tertiary sieve, and it includes first screen cloth (31), second screen cloth (32) and third screen cloth (33) that from top to bottom set up, first screen cloth (31) are connected through coarse sand play hopper (4) the feed inlet of system sand machine (1), second screen cloth (32) are connected with medium sand and are gone out hopper (5), third screen cloth (33) below is connected fine sand air hopper (6), medium sand goes out hopper (5) and is connected with the feed inlet of system sand machine (1) and the discharge gate of fine sand air hopper (6) respectively through (51), the side wall of the fine sand winnowing hopper (6) is provided with a main air inlet (621) and an air outlet (623), and the dust remover (7) is connected with the air outlet (623) through an air outlet pipe (71).

2. The dry-process fine sand making line according to claim 1, characterized in that: and reinforcing strips (41) are arranged in the coarse sand discharging hopper (4) and the medium sand discharging hopper (5).

3. The dry-process fine sand making line according to claim 1 or 2, characterized in that: the coarse sand discharging hopper (4) is fixedly connected with the medium sand discharging hopper (5), and the feeding holes of the coarse sand discharging hopper (4) and the medium sand discharging hopper (5) are separated through a partition plate (42).

4. The dry-process fine sand making line according to claim 1, characterized in that: fine sand air separator hopper (6) include two first curb plates (61) and two second curb plate (62) and constitute the casing of hopper shape, and two second curb plate (62) set up relatively, air outlet (623) are seted up one of them on second curb plate (62), main air intake (621) are seted up another on second curb plate (62), equal level is provided with striker plate (65) in first curb plate (61), side air intake (611) have still been seted up in first curb plate (61) bottom outside.

5. The dry-process fine sand making line according to claim 4, characterized in that: the striker plate (65) is fixedly connected to the first side plate (61) through a plurality of material scattering plates (651).

6. The dry-process fine sand making line according to claim 4, characterized in that: an air buffering area (63) is arranged on the second side plate (62) with the air outlet (623), the air buffering area (63) is located below the air outlet (623), and a vibration motor (64) is arranged below the air buffering area (63).

7. The dry fine sand manufacturing line according to claim 1 or 4, wherein the inner side wall of the fine sand winnowing hopper (6) is sequentially provided with a plurality of wear plates (66) from top to bottom, the included angle between the wear plates (66) and the inner side wall of the fine sand winnowing hopper (6) is α, and the opening of the α angle faces the feeding hole of the fine sand winnowing hopper (6).

8. The dry-process fine sand making line according to claim 1 or 4, characterized in that: dust remover (7) bottom is provided with powder collection storehouse (72), be provided with chimney (73) on dust remover (7), draught fan (74) of dust remover (7) dispose air damper or converter.