CN217550006U - Device for increasing large particle ratio of powder washing salt production line - Google Patents

Abstract

The utility model discloses a device that salt production line is washed to powder increases large granule and accounts for ratio. The device comprises a pickup belt, a first crusher, a spiral salt washing machine, a second crusher, a stirring salt washing machine and a centrifugal machine, wherein a first separation sieve is arranged below a discharge end of the pickup belt, a discharge port of the first separation sieve is communicated with an inlet of a first bucket elevator, a vertical blanking chute is arranged below the first separation sieve, a lower port of the blanking chute is positioned above a feed end of a belt conveyor, and the discharge end of the belt conveyor is communicated with a feed port of the spiral salt washing machine; a second separating screen is arranged below a discharge port of the spiral salt washing machine, the discharge port of the second separating screen is communicated with an inlet of a second crusher, a receiving groove is arranged below the second separating screen, and an outlet of the receiving groove is communicated with an inlet of the stirring salt washing machine. The utility model discloses a first sieve and second sieve are selected out the granule salt of 2.5 millimeters, do not pass through first rubbing crusher and second rubbing crusher, increase in the finished product 2.5mm granule account for than.

Description

Device for increasing large particle ratio of powder washing salt production line

Technical Field

The utility model relates to a salt production line is washed to powder, especially a salt production line is washed to powder increases device that the large granule accounts for than.

Background

The production line for washing salt by powder adopts the processes of crushing, washing, drying, screening and the like of raw salt, the equipment sequentially comprises a raw salt bin, a pickup belt, a first bucket elevator, a quantitative screw, a second bucket elevator, a third bucket elevator, a first crusher, a spiral salt washing machine, a second crusher, a stirring salt washing machine, a countercurrent salt washing device, a centrifugal machine and a centrifugal material receiving screw, salt with the granularity of 2.5mm or more produced by the existing process only accounts for 10 percent, and the requirement on the market for washing large-particle salt products with the granularity of 2.5mm or more is larger. The raw salt contains a part of 2.5mm particle salt, and the 2.5mm particle salt generated after the crushing of the first crusher after the crushing of the two crushers in the part of 2.5mm particle salt is crushed into smaller particles mostly after the crushing of the second crusher. The prior art has the following problems: firstly, the yield of the 2.5mm particle size specification is low, and the market supply requirement cannot be met; and secondly, accessory products with small particle size of less than 2.5mm are produced, so that the accessory products not only occupy the stock, but also are easy to agglomerate for a long time.

Chinese patent application No. CN201610866668.3 discloses a device and method for washing coarse salt and improving salt quality by air bubbling method, wherein a plurality of nozzles are arranged on an air inlet part, and compressed air sequentially passes through the air inlet part and the nozzles and then enters a scrubber reaction body.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem and providing a salt production line is washed to powder increases the large granule and accounts for the device of comparing, increases accounting for of 2.5mm granule, benefit is improved.

The utility model provides a its technical problem, the technical scheme of adoption is:

a device for increasing the ratio of large particles in a powder salt washing production line comprises a raw salt bin, a pickup belt, a first bucket elevator, a quantitative spiral, a second bucket elevator, a raw salt color sorting system, a third bucket elevator, a first crusher, a spiral salt washing machine, a second crusher, a stirring salt washing machine, a countercurrent salt washing device, a centrifugal machine and a centrifugal material receiving spiral, wherein a first separation sieve is arranged below the discharge end of the pickup belt, the discharge port of the first separation sieve is communicated with the inlet of the first bucket elevator, a vertical blanking chute is arranged below the first separation sieve, the lower port of the blanking chute is positioned above the feed end of a belt conveyor, and the discharge end of the belt conveyor is communicated with the feed port of the spiral salt washing machine; and a second separating screen is arranged below a discharge port of the spiral salt washing machine, the discharge port of the second separating screen is communicated with an inlet of a second crusher, a receiving groove is arranged below the second separating screen, and an outlet of the receiving groove is communicated with an inlet of the stirring salt washing machine.

Adopt above-mentioned technical scheme the utility model discloses compare with prior art, beneficial effect is:

first sorting screen walks around first rubbing crusher entering spiral and washes the salt machine after selecting out the salt grain of 2.5mm granule to the salt grain of 2.5mm granule after the breakage with first rubbing crusher enters into the stirring and washes the salt machine after bypassing the second rubbing crusher, prevent that the salt grain of 2.5mm granule from being smashed, the salt grain of having improved the 2.5mm granule accounts for than, can better adaptation market demand, the benefit is improved, the inventory pressure of other accessory products has been alleviateed simultaneously, avoid other accessory products to excessively save the caking.

Further, the utility model discloses an optimization scheme is:

the bottom discharge port of the stirring salt washer is communicated with the feed inlet of the micro-damage pump, the discharge port of the micro-damage pump is communicated with the inlet of the salt precipitator, and the outlet of the salt precipitator is communicated with the feed inlet of the countercurrent salt washer.

And the discharge holes of the first separating screen and the second separating screen are arranged in a downward inclined mode.

The screen hole diameter of the first separating screen and the second separating screen is equal to or larger than 2.5 mm.

And two sides of the second separating screen are respectively connected with a machine base of the spiral salt washing machine through connecting rods.

And a wet powder short-circuit flap valve is arranged below the discharge port of the second separation sieve, the discharge port of the second separation sieve is communicated with the inlet of the wet powder short-circuit flap valve, the particle outlet of the wet powder short-circuit flap valve is communicated with the inlet of the second pulverizer, and the powder outlet of the wet powder short-circuit flap valve is communicated with the inlet of the stirring salt washing machine.

Drawings

FIG. 1 is a schematic diagram of the overall process of an embodiment of the present invention;

fig. 2 is a schematic process diagram of a first separation screen, a belt conveyor and a second separation screen of an embodiment of the present invention;

FIG. 3 is a schematic view of the process of the micro-damage pump and the salt deposition device according to the embodiment of the present invention;

fig. 4 is a schematic view of the connection of the spiral salt washing machine, the second separating screen and the receiving trough of the embodiment of the present invention.

In the figure: a raw salt warehouse salt lump 1; a crude salt underground bunker 2; a pickup belt 3; a first separating screen 4; a blanking chute 4-1; a belt conveyor 4-2; 4-3 of a bracket; a first bucket elevator 5; a quantitative screw 6; a second bucket elevator 7; a primary salt color sorting system 8; a third bucket elevator 9; a first pulverizer 10; a dry powder short circuit flap valve 10-1; a spiral salt washer 11; a second sieve 11-1; a connecting rod 11-2; a material receiving groove 11-3; a delivery line 11-4; a machine base 11-5; a second crusher 12; a wet powder short circuit flap valve 12-1; a stirring salt washer 13; a micro-loss pump 14; a salt precipitator 14-1; a counter-current salt scrubber 15; a centrifuge 16; a centrifugal receiving screw 17; an overflow liquid pump 18; and an overflow tank 19.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Referring to fig. 1, the embodiment is a device for increasing the ratio of large particles in a powder salt washing production line, and the device mainly comprises a raw salt warehouse salt lump 1, a raw salt underground bunker 2, a pickup belt 3, a first sorting sieve 4, a blanking chute 4-1, a belt conveyor 4-2, a first bucket elevator 5, a quantitative screw 6, a second bucket elevator 7, a raw salt color separation system 8, a third bucket elevator 9, a first pulverizer 10, a dry powder short-circuit flap valve 10-1, a spiral salt washing machine 11, a second sorting sieve 11-1, a receiving groove 11-3, a wet powder short-circuit flap valve 12-1, a second pulverizer 12, a stirring salt washing machine 13, a micro-damage pump 14, a salt settling machine 14-1, a countercurrent salt washing machine 15, a centrifuge 16, a centrifugal material receiving screw 17, an overflow liquid pump 18 and an overflow liquid tank 19 in sequence.

The raw salt warehouse is characterized in that a raw salt underground bin 2 is arranged on one side of a salt lump 1, a feeding end of a pickup belt 3 is located below a discharging port of the raw salt underground bin 2, a first separation sieve 4 is arranged below a discharging end of the pickup belt 3, the first separation sieve 4 is installed on a support 4-3, a discharging port of the first separation sieve 4 is arranged in a downward inclined mode, the diameter of a sieve pore of the first separation sieve 4 is 2.5mm, the discharging port of the first separation sieve is communicated with an inlet of a first bucket elevator 5, the discharging port of the first bucket elevator 5 is communicated with an inlet of a quantitative screw 6, an outlet of the quantitative screw 6 is communicated with an inlet of a second bucket elevator 7, an outlet of the second bucket elevator 7 is communicated with an inlet of a raw salt color sorting system 8, an outlet of the raw salt color sorting system 8 is communicated with an inlet of a third bucket elevator 9, an outlet of the third bucket elevator 9 is communicated with an inlet of a dry powder short-circuit flap valve 10-1, a particle outlet of the dry powder short circuit flap valve 10-1 is communicated with a feeding port of a first pulverizer 10, and a short circuit powder outlet of the first pulverizer 10-1.

A vertical blanking chute 4-1 (shown in figure 2) is arranged below the first separating screen 4, the lower port of the blanking chute 4-1 is positioned above the feeding end of the belt conveyor 4-2, and the discharging end of the belt conveyor 4-2 is communicated with the feeding port of the spiral salt washing machine 11. A second separation sieve 11-1 (shown in figure 4) is arranged below a discharge port of the spiral salt washer 11, the discharge port of the second separation sieve 11-1 is arranged in a downward inclined mode, the diameter of a sieve pore of the second separation sieve 11-1 is 2.5mm, two side plates of the second separation sieve 11-1 are connected with a machine base 11-5 of the spiral salt washer 11 through connecting rods 11-2 respectively, a wet powder short-circuit flap valve 12-1 is arranged below the discharge port of the second separation sieve 11-1, the discharge port of the second separation sieve 11-1 is communicated with an inlet of the wet powder short-circuit flap valve 12-1, a particle outlet of the wet powder short-circuit flap valve 12-1 is communicated with a feed port of a second crusher 12, a powder outlet of the wet powder short-circuit flap valve 12-1 is communicated with an inlet of the stirring salt washer 13, and a discharge port of the second crusher 12 is communicated with an inlet of the stirring salt washer 13. A material receiving groove 11-3 is arranged below the second separating screen 11-1, and a material outlet at the bottom of the material receiving groove 11-3 is communicated with an inlet of a stirring salt washing machine 13 through a conveying pipeline 11-4. In this embodiment, the first separating screen 4 and the second separating screen 11-1 are both fixed screens, and vibrating screens may also be used.

The bottom discharge port of the stirring salt washer 13 is communicated with the feed port of the micro-damage pump 14 (shown in fig. 3), the discharge port of the micro-damage pump 14 is communicated with the inlet of the salt precipitator 14-1, the outlet of the salt precipitator 14-1 is communicated with the feed port of the countercurrent salt washer 15, the discharge port of the countercurrent salt washer 15 is communicated with the inlet of the centrifuge 16, the outlet of the centrifuge 16 is communicated with the inlet of the centrifugal material receiving screw 17, and the outlet of the centrifugal material receiving screw 17 is communicated with the drying system. The overflow liquid pump 18 is respectively communicated with the counter-flow salt washer 15, the centrifuge 16 and the overflow liquid tank 19 through pipelines, and the overflow liquid tank 19 is respectively communicated with the spiral salt washer 11 and the stirring salt washer 13 through pipelines.

The utility model discloses a 2.5 millimeters of raw salt warehouse salt lump 1 and following granule salt are selected out by first selection sieve 4, do not through first rubbing crusher 10, directly get into spiral through belt conveyor 4-2 and wash salt machine 11, prevent that 2.5 millimeters granule salt from being smashed by first rubbing crusher 10, the export of washing salt machine 11 by the spiral gets into second selection sieve 11-1 and is elected, do not pass through second rubbing crusher 12, wash salt machine 13 through connecing silo 11-3 and conveying pipeline 11-4 entering stirring, prevent to be smashed by second rubbing crusher 12. The large-particle salt larger than 2.5mm of the raw salt warehouse salt lump 1 sequentially passes through the first sorting sieve 4, the first bucket elevator 5, the quantitative screw 6, the second bucket elevator 7, the raw salt color sorting system 8 and the third bucket elevator 9, enters the first crusher 10, is crushed, enters the spiral salt washing machine 11, the 2.5 mm-particle salt generated after being crushed by the first crusher 10 enters the second sorting sieve 11-1 from an outlet of the spiral salt washing machine 11 to be sorted, does not pass through the second crusher 12, enters the stirring salt washing machine 13 through the material receiving groove 11-3 and the conveying pipeline 11-4, is prevented from being crushed by the second crusher 12, and the particle salt larger than 2.5mm generated after being crushed by the first crusher 10 enters the second crusher 12. The salt with various particle sizes in the stirring salt washer 13 enters a salt precipitator 14-1 through a micro-loss pump 14, naturally sinks in the salt precipitator 14-1 by the gravity of large-particle salt particles, enters a counter-flow salt washer 15, and enters a centrifuge 16 from the counter-flow salt washer 15. The micro-damage pump 14 utilizes the boundary effect of the blades, the blades are not in mechanical contact with materials, salt particles do not collide with the micro-damage pump 14 in the conveying process of salt slurry, mechanical impact does not occur among the salt particles in the salt slurry, the particle size is not damaged, and the proportion of the particle size of 2.5mm is improved. The centrifuge 16 may also remove scrapers to prevent the scrapers from colliding with the salt particles.

The utility model discloses can change the separating screen of different sieve mesh diameters according to the market demand, select out the large granule salt of different granularities. The utility model discloses the proportion of accounting for of 2.5 mm's granule increases to 25% by 10% in the finished product, can better adapt to market demand, improves economic benefits.

The above description is only a preferred and practical embodiment of the present invention, and is not intended to limit the scope of the present invention, which is intended to be encompassed by the present invention, as long as the structural equivalents and modifications made by the contents of the present invention and the attached drawings are covered.

Claims (6)

1. The utility model provides a salt production line is washed to powder increases device that large granule accounts ratio, and salt production line is washed to powder includes the primary salt feed bin in proper order, picks up the belt, first fill is carried the machine, quantitative spiral, second fill is carried the machine, primary salt look selection system, third fill is carried machine, first rubbing crusher, spiral wash salt machine, second rubbing crusher, stirring and is washed the salt machine, washes salt ware, centrifuge and centrifugation against current and receive the material spiral, its characterized in that:

a first separating screen is arranged below the discharge end of the pickup belt, a discharge port of the first separating screen is communicated with an inlet of a first bucket elevator, a vertical blanking chute is arranged below the first separating screen, a lower port of the blanking chute is positioned above the feed end of the belt conveyor, and the discharge end of the belt conveyor is communicated with a feed port of the spiral salt washing machine;

and a second separation sieve is arranged below a discharge port of the spiral salt washing machine, the discharge port of the second separation sieve is communicated with an inlet of a second crusher, a receiving groove is arranged below the second separation sieve, and an outlet of the receiving groove is communicated with an inlet of the stirring salt washing machine.

2. The device for increasing the proportion of large particles in the powder washing salt production line according to claim 1, is characterized in that: the bottom discharge port of the stirring salt washing machine is communicated with the feed inlet of the micro-damage pump, the discharge port of the micro-damage pump is communicated with the inlet of the salt settling device, and the outlet of the salt settling device is communicated with the feed inlet of the countercurrent salt washing device.

3. The device for increasing the ratio of large particles in the production line of the salt washing powder according to claim 1 is characterized in that: and the discharge ports of the first separating screen and the second separating screen are arranged in a downward inclined manner.

4. The device for increasing the ratio of large particles in the production line of the salt washing powder according to claim 1 is characterized in that: the screen hole diameter of the first separating screen and the second separating screen is equal to or larger than 2.5 mm.

5. The device for increasing the proportion of large particles in the powder washing salt production line according to claim 1, is characterized in that: and two sides of the second separating screen are respectively connected with a machine base of the spiral salt washing machine through connecting rods.

6. The device for increasing the ratio of large particles in the production line of the salt washing powder according to claim 1 is characterized in that: and a wet powder short-circuit flap valve is arranged below the discharge port of the second separation sieve, the discharge port of the second separation sieve is communicated with the inlet of the wet powder short-circuit flap valve, the particle outlet of the wet powder short-circuit flap valve is communicated with the inlet of the second pulverizer, and the powder outlet of the wet powder short-circuit flap valve is communicated with the inlet of the stirring salt washing machine.

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