Process flow chart: Processing process of edible salt and industrial salt: Loader → raw salt bin, quantitative transport dragon → belt conveyor → Spiral salt washing machine → vibration feeder, roll crusher → Stir salt washer → salt slurry pump → Countercurrent washing irrigation → roll crusher → Stir salt washer → salt slurry pump → dewatering centrifuge → screw conveyor → vibration feeder → vibration dry bed (heating system, dust removal system, water mesh filter) → bucket elevator → vibrating probability screen → screw conveyor (three article) → finished product salt hopper
Three washing is as follows:
1) First Screw washing
2) Stand-up stirring washing
3) Countercurrent washing
Three crushing is as follows:
1) First crushing
2) Wet crushing
3) Dry crushing
The combination of first crushing, wet crushing and dry crushing has greatly improved the salt quality. The above operation is adjustable according to the crude salt and user's requirements on finished salt quality.
Advantages:
1) Finished has high purity, shiny appearance, free liquidity and stable iodine content.
2) Low loss, the loss of NaCl is under 8%.
3) Low energy consumption and investment.
4) Equipment is easy to operate and maintain.
The whole line including the following machines:
01) Raw salt stock bin
02) Quantitative spiral conveyor
03) Iron remover
04) Belt conveyor
05) Spiral salt washing machine
06) Salt slurry pump
07) Contranatant washer
08) Stirring salt washing machine
09) Tickening machine
10) Double push centrifuge
11) Salt spiral conveyor
12) Iodized machine
13) Vibrating fluid bed drier
14) Cooling fan
15) System induced fan
16) Cyclone
17) System blower
18) Spray dust catcher
19) Host blast furnace
20) Rotary screen
21) Probability vibrating screen
22) Electronic quantitative packing machine
23) Packing machine
24) Air compressor
25) Finished salt stock bin
26) Electrical Cabinet
27) Electric Generator



No. | Item | Quantity | Parameters |
1 | Raw salt stock bin | 1 | Capacity : 2.5³ Body Material : SUS 316L Body thickness : 3mm Power : 3 KW motor:Siemens or equivalent Advantages: grid with large salt caked (filter large grain raw salt) Equipped with quantitative screw conveyor, variable frequency motor (adjustable speed to control the production capacity of the whole production line) |
2 | Belt conveyor | 1 | Belt width : 500mm (the belt is food grade, thickened and wear-resistant) Belt length : 6 m Motor power : 3kw set guard plate, can be picked up manually. |
3 | Iron Remover | 1 | Permanent magnet (remove mineral iron debris from raw salt) |
4 | Screw washing machine | 1 | Screw shaft :140mm (thick wall tube) Screw blade :8mm Screw size : 6000×520mm Main material : SUS316L Motor power :5.5 kw, Advantages: double blade design, add double spray, ensure the best washing effect Good, with bracket guardrail, front bearing and rear nylon sleeve (corrosion resistant and durable) |
5 | Opposite roller crusher | 2 | Material is 316 l, smashing roller :Ø 280 mm x 800 mm, motor power: 7.5 kw x 2 Equipped with vibration feeder, (let the material enter at a constant speed) vibration motor 0.75kw ×2 Advantages: the roller body is wear-resisting high shock alloy (hardness of 550), the surface has chute (after grinding can be slotted again, can be used for multiple processing, corrosion resistance), the shell is removable, the bearing seat is adjustable. |
6 | Agitating salt washer | 2 | Ø1200 x1800mm , thickness of 4 mm, motor:5.5 kw . Stirring blades. Advantages: with countercurrent tank, circulating water is easier to remove stolen goods, there is pressure water plate to control the liquid splash, set a safety protection net. Rear nylon sheath (wear- resistant and corrosion-resistant) |
7 | Brine pump | 1 | Material sus316l (single end mechanical seal), protection grade: IP54 medium: 20% particle brine, flow rate: 25 m3 /h, head 10-15m power: 4 Kw. |
8 | Counter current crusher | 1 | material SUS316 L, Ø1200 mm x 5 m wear a stent, guardrail. Advantages: spray washing, with observation eyepiece, power off protection valve |
9 | centrifuge | 1 | HR500 -N Piston-pushing material centrifuge Max charge amount(Kw) 37-55 Pushing frequency(r/min) 30-80 Capacity(T/h) >=15 Mesh size 0.15-0.18mm Weight (Kg) 4860 lubrication oil : N90 -high temperature resistant and anti-wear hydraulic oil The parts contact material is made of SS316L |
10 | U-screw conveyor | 1 | Screw size: Ø220 mm x 5 m Screw shell : 3 mm Screw blade thickness :5 mm, Motor power : 3 kw Main material : SUS316L Advantages: jiaolong bottom set felt seal, double bearing, (bearing does not contact with salt, protection |
11 | Drying system Vibrating Fluid Bed Dryer Dust remover system Heating system | 1 | Drying section :6m cooling section : 1m bed width: 700. Main material : SUS316L Vibration motor: 3 Kw×2 The diameter of hot air pipe is 500mm Advantages: do the outer insulation, the discharge moisture content ≤0.3% Stainless steel screen, replaceable, washable. Wear drainage valve for convenience Clean the powder. The motor is not in direct contact with the hot temperature to improve the service life. The use of vibration feeder, so that the material evenly into the drying effect is better One set of cyclone dust removal, one set of spray dust removal (environmental protection type) Main material : SUS316L Hot air furnace + burner: gas size :7000 x2000x 2200mm |
12 | Bucket elevator | 1 | Bucket Size: 720x440x6000mm Main material : SUS316L, Motor power : 3 kw The upper and lower supports are 3mm stainless steel, and the connecting box body is 2.5mm stainless steel Advantages: dustpan is stainless steel, anti-corrosion and wear-resisting type, observation eyepiece, wearing maintenance guardrail |
13 | Probability shaker | 1 | Motor power : 3kw x 2 Plate thickness 6-8mm. The size of the 2 outlets (export granules according to customer requirements) is about 3.5m X 1.6m Advantages: wearing observation hole, stainless steel screen (replaceable), adjustable vibration amplitude, rubber shock absorber, maintenance guardrail |
14 | Screw conveyor | 1 | Crew size: Ø180 mm x 5.5 m Screw shell : 3 mm Screw blade thickness :5 mm, Motor power : 2.2 kw Main material : SUS316L Advantages: set with felt seal, double bearing, (improve bearing protection, increase load), wear clean drain. |
15 | Final production hopper | 1 | Capacity : 2.5³ Body Material : SUS 316L Body |
16 | Automatic iodizing machine | 1 | Contact material 2mm, iodine machine contains stainless steel metering pump, power :0.75kw. Iodine accuracy ±10%. Advantages: stainless steel fan-shaped spray head, glass flow rotor, automatic stirring and heating, iodized evenly. One machine can be used to add potassium iodide and anticoagulant at the same time. |
17 | Halogen water pump | 1 | Made of 316 stainless steel, motor power:3KW |
18 | Pipe, valve | 1 | Domestic brand, reliable quality, corrosion resistance, SUS316L. |
19 | Electric control system | 2 | In line with the international standard Chint electrical appliances, safe and durable operation is simple One general electric cabinet |
20 | Sedimentation tank and supporting facilities | The client builds by himself, we can provide the basic drawing and the supporting equipment. |





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