plough shear mixer

The plough shear mixer is a core horizontal intensive mixing equipment specially optimized for full-series dry mortar production lines, serving as the key mixing unit for both small-batch customized mortar production and large-scale automated mortar manufacturing systems. Adopting a unique horizontal single-shaft plough shear stirring structure combined with high-speed flying cutter auxiliary shearing devices, this equipment breaks the limitations of traditional mortar mixers with single stirring modes and uneven mixing dead zones. During operation, the plough-shaped stirring blades drive raw materials such as cement, quartz sand, limestone powder, and functional additives to form three-dimensional circulating fluidization in the mixing cylinder, while the high-speed flying cutters instantly shear and disperse agglomerated materials and micro-additives.

Different from ordinary paddle mixers and vertical mixers, the plough shear mixer realizes forced convection, fluidized suspension and high-strength shearing mixing simultaneously. It perfectly adapts to the mixing requirements of multi-formula dry mortars, including ordinary building mortars and special functional mortars. With a fully sealed anti-leakage structure and automated operation configuration, it integrates high efficiency, precision and durability, becoming the standard supporting equipment for modern intelligent dry mortar production lines.

Equipped with scientifically arranged curved plough shear blades and distributed high-speed flying cutters, the equipment forms an all-round three-dimensional mixing field inside the cylinder. It thoroughly eliminates material accumulation and mixing dead zones at the cylinder wall and bottom. Even for trace functional additives with a proportion as low as 0.1%, it can achieve uniform dispersion, with a mixing uniformity coefficient higher than 98%. It effectively solves the problems of inconsistent color, unstable strength and uneven performance of finished mortar caused by uneven mixing of traditional equipment.

The inner wall of the mixing cylinder is lined with high-hardness wear-resistant alloy plates, and the plough shear heads are treated with special wear-resistant coating, which resists the abrasion of granular materials such as sand and stone for a long time. The shaft end adopts a dual sealing structure of mechanical seal and pneumatic seal, which completely prevents fine mortar powder leakage, solves the dust pollution problem of traditional mixers, and ensures a clean production environment. The overall equipment failure rate is extremely low, and the service life of core components is more than 3 times that of ordinary mixers.

The optimized transmission structure and blade operation track reduce material resistance and invalid power consumption. The single-batch mixing cycle is only 2–10 minutes, which greatly improves production efficiency compared with traditional equipment. It supports high-load continuous operation with a loading coefficient up to 0.6–0.75, realizing larger single-batch output with the same volume. It effectively reduces unit energy consumption and production time cost, perfectly matching the high-yield operation demand of automated mortar production lines.

The equipment has ultra-wide material adaptability, covering dry powder, dry-wet mixed paste and other material states, and can stably mix ordinary plastering mortar, bonding mortar, waterproof mortar, anti-crack mortar, putty powder and other diverse mortar formulas. It is equipped with a programmable control system and variable frequency speed regulation device, which can adjust mixing speed, stirring time and cutter operating frequency according to different materials. It supports seamless docking with automatic batching, feeding and discharging systems of mortar production lines to realize fully automated production.

Adopting large-opening quick-discharging structure, the discharging speed is fast with no residual materials, avoiding material waste and formula mixing interference caused by residual materials. The whole machine has a compact horizontal structure, small floor area and convenient installation and commissioning. The external openable maintenance window is designed for quick replacement and maintenance of wearing parts such as plough blades and flying cutters, greatly reducing daily maintenance difficulty and downtime.

The plough shear mixer for mortar production lines has multiple standardized models to meet the production demands of small, medium and large mortar factories. The core specification parameters are as follows:

Before starting the equipment, check the tightness of all connecting bolts, especially the fixing bolts of plough shear blades and flying cutters to avoid loose parts falling off during operation. Verify the sealing performance of the shaft end sealing device to ensure no air leakage or powder leakage. Check the lubrication status of the transmission bearing and gearbox, and replenish lubricating oil in time if it is insufficient. Meanwhile, confirm that there is no foreign matter inside the mixing cylinder to prevent equipment abrasion and damage during operation.

Strictly follow the equipment loading coefficient for feeding, neither overload operation nor ultra-light empty load long-time operation, to avoid affecting mixing efficiency and causing equipment vibration and wear. For mortar formulas containing easy-to-agglomerate additives, add materials in batches and start the flying cutter device in advance for pre-dispersion. It is forbidden to open the maintenance window and discharge port during equipment high-speed operation to prevent safety accidents caused by material splashing and mechanical movement.

During the mixing process, monitor the equipment operating current, vibration and noise in real time. If abnormal vibration, sharp noise or current overload occurs, stop the machine immediately for inspection and troubleshooting. Do not switch the operation frequency and working mode frequently in a short time to avoid burning the frequency converter and motor. After each batch of production, clean the residual materials inside the cylinder in time to prevent material caking from affecting the next mixing accuracy.

Regularly check the wear degree of wear-resistant lining plates, plough blades and flying cutters, and replace severely worn parts in time to ensure mixing effect. Regularly clean the dust removal system and sealing components to maintain equipment sealing and dust-free production effect. If the equipment is shut down for a long time, clean the inside of the cylinder thoroughly, coat the metal parts with anti-rust oil, and cut off the power supply to place it in a dry and ventilated environment. Professional technicians must complete equipment disassembly and maintenance to avoid damaging the internal transmission structure.

Operators must receive professional training before taking post and be familiar with the equipment operation process and emergency shutdown procedures. It is forbidden to touch the rotating parts during equipment operation. When overhauling the equipment, cut off the main power supply and hang a warning sign to avoid accidental startup. Equip the production site with corresponding dust prevention and fire prevention facilities to ensure production safety.

It is the core supporting equipment for full-automatic and semi-automatic dry mortar production lines, suitable for mass production of various building mortars, including internal and external wall plastering mortar, cement bonding mortar, floor leveling mortar, masonry mortar, and repair mortar. It stably guarantees the consistent strength and construction performance of finished mortar products.

It is perfectly applicable to the production of high-value-added special mortars, such as tile adhesive mortar, waterproof mortar, anti-crack mortar, thermal insulation mortar, grouting mortar and putty powder. Its high-precision dispersion ability ensures the uniform distribution of waterproof agents, anti-crack fibers, thermal insulation particles and other functional additives, improving the comprehensive performance of special mortars.

It can be used for mixing and processing various building powder materials, including cement composite powder, gypsum powder, mineral powder admixture, and building additive premix powder. It meets the mixing requirements of different particle sizes and specific gravity materials, and is widely used in supporting production of building material processing plants.

With flexible operation and adjustable parameters, it adapts to small-batch and multi-formula customized mortar production demands in engineering construction sites, small and medium-sized mortar factories, and building material supporting enterprises, realizing rapid switching of different mortar formulas and reducing production cost waste.

In addition to the building mortar industry, the equipment can also be used for mixing powder and granular materials in chemical industry, new building materials, environmental protection materials and other fields, with strong industry adaptability.

Q1: Why is the plough shear mixer more suitable for mortar production than traditional mixers?

A1: Traditional mortar mixers have single mixing mode, obvious mixing dead zones and poor dispersion effect on trace additives. The plough shear mixer integrates fluidization stirring and high-speed shearing, realizing zero dead-zone uniform mixing with mixing uniformity over 98%. It has wear-resistant and leak-proof structure, higher production efficiency and lower energy consumption, which can stably ensure the stable quality of finished mortar and meet the standardized production requirements of modern mortar lines.

Q2: What should I do if there is residual material after discharging?

A2: A small amount of residual material is caused by uneven material adhesion on the cylinder wall. It is recommended to clean the cylinder wall thoroughly after each production batch. For long-term residual caking materials, stop the machine and use special tools for cleaning. Meanwhile, check whether the discharging port is blocked and whether the equipment loading coefficient is over-standard, and adjust the feeding amount reasonably to avoid excessive material accumulation.

Q3: How to solve the problem of equipment dust leakage during operation?

A3: Dust leakage is mostly caused by aging sealing components or loose shaft end seals. Regularly check and replace the mechanical seal and pneumatic seal accessories at the shaft end. Ensure the tightness of the feeding port and discharging port during operation, and match with the supporting dust removal system. Regularly clean the dust accumulation of the sealing parts to avoid affecting the sealing effect.

Q4: How long is the service cycle of core wearing parts?

A4: Under normal standard operation, the service life of wear-resistant lining plate is 18–24 months, the plough shear blade is 12–18 months, and the flying cutter is 8–12 months. The specific service life varies according to material abrasiveness and operating frequency. It is recommended to check the wear degree every month and replace parts in time to ensure mixing quality.

Q5: Can the equipment support customized formula mixing of special mortars?

A5: Yes. The equipment adopts variable frequency speed regulation and programmable control system, which can adjust mixing speed, stirring time and shearing frequency according to different special mortar formulas. It can adapt to the mixing demands of fiber-containing, particle-containing, trace additive and other complex formulas, fully meeting customized production requirements.

Q6: What are the main causes of equipment abnormal vibration and noise?

A6: The main reasons include loose fixed bolts of blades, foreign matters inside the cylinder, insufficient lubrication of transmission bearings, and uneven equipment grounding. When abnormal conditions occur, stop the machine immediately for inspection, fasten loose parts, clean foreign matters, replenish lubricating oil, and adjust the equipment level to eliminate faults.