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Plow Mixer

Mixing Equipment

Plow Mixer

Ploughshare Mixer

1. Product Overview

1.1 General Description

The ploughshare mixer is a high-efficiency machine for mixing powders and granular materials in the chemical, building-materials and food industries. Multiple sets of plough shares mounted on the main shaft rotate at high speed inside a horizontal drum, tossing the material upward to create convective and diffusive mixing, while the chopper group forcibly breaks up agglomerates. The special shape of the plough shares moves material axially and radially at the same time, delivering high mixing uniformity (CV≤5%) and short mixing times (3-8 minutes). A liquid spray system can be fitted for powder-liquid mixing, and a jacket for heating or cooling. It is widely used in dry-mortar, feed, fertilizer, food-additive and battery-material production.

1.2 Key Features

  • Special plough-share geometry for highly efficient three-dimensional convective mixing
  • Choppers forcibly break up lumps — suits materials with higher liquid content
  • High mixing uniformity of CV≤5%; mixing time of 3-8 minutes
  • Optional liquid spray system for powder-liquid granulation
  • Horizontal drum with large discharge door for clean, complete discharge
  • Jacketed heating/cooling available
  • Variable-frequency speed control for different materials
  • Full capacity range from 100 to 6000 L

1.3 Document Scope

This specification covers the design principles, performance parameters, system classification, key component selection, applications, design standards and certifications, custom options, warranty terms, packaging and delivery, and the information required for inquiries regarding the ploughshare mixer. It serves as a comprehensive reference for procurement selection and engineering communication.

2. Working Principle

2.1 Ploughshare Mixer Process Flow

Ploughshare mixer process: charging → low-speed pre-mixing → high-speed mixing → liquid spraying (optional) → chopping → discharge. As the plough shares rotate with the main shaft, they throw the material tangentially along the drum wall; under centrifugal force and gravity the material forms axial convection and radial turnover. The choppers, rotating at high speed (1400-2900rpm), apply intense shear and impact to the material, breaking up agglomerated particles. The combined action of plough shares and choppers achieves uniform mixing in a short time. The spray system sprays liquid evenly onto the tumbling material through nozzles, enabling powder-liquid mixing.

3. System Classification

ClassificationTypical modelsParameter rangeApplicationKey feature
SmallLDH-100, LDH-300Capacity 100-300LSmall batches / pilotSingle-row ploughs
MediumLDH-500, LDH-1000Capacity 500-1000LStandard productionDouble-row ploughs + choppers
LargeLDH-2000, LDH-4000Capacity 2000-4000LLarge-scale productionMulti-row ploughs + multiple choppers
Extra-largeLDH-6000Capacity 6000LUltra-large scaleHeavy-duty design

4. Technical Parameters

4.1 Main Technical Parameters of the Ploughshare Mixer

ParameterLDH-100LDH-300LDH-500LDH-1000LDH-2000LDH-4000LDH-6000
Working volume (L)1003005001000200040006000
Total volume (L)1604808001600320064009600
Motor power (kW)5.57.51118.5304555
Main shaft speed (rpm)60555045403530
Number of ploughs46810142024
Number of choppers2233446
Chopper motor (kW)1.52.22.2345.57.5
Liquid spray rate (L/min)0-20-50-80-120-200-300-40

4.2 Dimensions and Weight

ModelLength (mm)Width (mm)Height (mm)Net weight (kg)Footprint (m²)
LDH-10015006009005000.9
LDH-300180080010008001.5
LDH-5002000900110012001.8
LDH-100025001100130020002.8
LDH-200030001300150035004.0
LDH-400036001600180060005.8
LDH-600042001800200090007.6

5. Applications

IndustrySegmentSpecial requirementRepresentative products
Dry mortarMasonry / rendering / insulation mortarsHigh uniformitySpecial mortars
FeedPremixes / concentratesUniformity CV≤5%Vitamin premixes
FertilizerCompound / blended fertilizersAnti-cakingBB fertilizer
Battery materialsCathode / anode materialsNo metal contaminationTernary cathode materials
FoodSeasonings / milk powderFood-grade FDACompound seasonings
Building materialsInsulation / fireproofing materialsUniform mixingPerlite insulation

6. Core Component Selection

ComponentFunctionMaterialSelection notes
Plough shareLifts material to create convectionSS304 / wear-resistant alloyShape and quantity affect mixing
ChopperBreaks up lumps and agglomeratesSS304 / tungsten carbideSpeed 1400-2900rpm
DrumHolds the materialSS304 / carbon steelHorizontal design with large discharge door
Main shaft and bearingsDrives the plough shares40CrDynamic balancing required
Spray systemAdds liquid to the materialStainless steel nozzlesAdjustable flow, fine atomization
Discharge valveControls dischargePneumatic / manual butterfly valveLarge opening for fast discharge
TransmissionTransmits powerGearbox + couplingShaft alignment must be ensured
Control systemCoordinates operationPLC + HMIProgrammable with recipe storage

7. Design Standards and Certifications

Standard / CertificationScopeComplianceCertificate / Report
Relevant GB/T standardsDesign & manufactureFully compliantType test report
GMP (cGMP)Design, manufacture, documentationFully compliantGMP compliance certificate
ISO 9001:2015Quality management systemCertifiedISO 9001 certificate
CE certificationMachinery safety / EMCOptionalCE Declaration of Conformity
FDAFood-grade / pharmaceutical-gradeOptionalFDA compliance documents

8. Custom Optional Configurations

No.ItemOptionsDefaultLead-time impact
1Plough typeStandard / wear-resistant ploughsStandard ploughsWear-resistant +1 week
2Chopper configuration2/3/4/6 choppers2 choppersExtra choppers +1 week
3Spray systemNone / single-line / multi-lineNoneMulti-line +1-2 weeks
4JacketNone / heating / coolingNoneJacket +2 weeks
5Discharge methodPneumatic butterfly valve / manual / screwPneumatic butterfly valveScrew +2 weeks
6Explosion-proofingStandard / ExdIIBT4StandardEx-proof +2-3 weeks

9. Material Property Requirements

PropertyRequirementNotes
Operating temperature-40~250℃Depends on seals and materials
CorrosivenessMild to moderately corrosive316L or lining required for strongly corrosive media
Explosion-proofingSelected per zoneZone1/Zone2 ratings

10. Warranty Terms

CategoryPeriodCoverageConditions
Main equipment warranty12 monthsAll components12 months from successful commissioning
Extended warranty (optional)24 monthsSame as standard warrantyMust be purchased with the order
Wear-parts warranty6 monthsSeals, bearings, etc.Normal wear excluded

11. Packaging and Delivery

ItemDetails
Standard lead time6-10 weeks after order confirmation
Customized configuration lead time10-16 weeks
IncotermsFOB Shanghai / CIF / DAP
PackagingExport-grade wooden case
ShippingContainer or break-bulk shipping

12. Information Required for Inquiry

No.Information requiredDescription / Example
1Material name and propertiesPowder / granule / density / particle size
2Batch capacitykg or L per batch
3Liquid spraying requiredYes / no / liquid ratio
4Mixing uniformity requirementCV value %
5Material of constructionSS304/316L/carbon steel
6Explosion-proofingStandard / explosion-proof
7Discharge method preferencePneumatic / manual / screw
8Installation conditionsPlant dimensions / floor load