RU59095U1 - FLOW PRODUCTION LINE FOR THE PRODUCTION OF CHIP AND CEMENT PLATES FOR REMOVABLE FORMWORK - Google Patents

Abstract

The utility model relates to construction and can be used for the production of wood chips. The technical result of the utility model is to increase the quality of products and labor productivity, reducing the cycle time of forming plates. The essence of the utility model lies in the fact that the production line for the production of slabs for fixed formwork contains a transport system and a mixer, hopper-distributor, pressing equipment with molds for the slabs, a drying chamber, a chamber for holding the slabs and a device for cleaning and grease forms. Additionally, the line is equipped with a control system, including programming, memory, control devices. In addition - equipment for the manufacture of wood chips, installed in a separate line connected to the main line through the transport system, machine tools for sawing plates and manipulating devices for stacking, disassembling the stack of plates and moving blank forms. The transport system includes conveyor belts and / or drive conveyors, and / or gravity conveyors, and / or trays, and / or screw conveyors, and / or electric forklifts, and / or robocars. 1 ill.

Description

The utility model relates to construction and can be used for the production of wood chips.

Known production line for the production of building products according to the copyright certificate of the USSR 1763201, which includes technological equipment for the production of building panels.

A disadvantage of the known line is the insufficient automation of the production cycle and the lack of technological equipment for the production of chip-cement or chip-cement boards.

A device for the production of building boards based on wood waste and mineral binder according to the application EP 0189127.

The disadvantage of this device is the incompleteness of the technological cycle for the production of building panels.

The closest analogue is the line for the production of cement-bonded particleboards, disclosed in patent RU 2191761.

A disadvantage of the known line is the lack of automation of the production process.

The objective of the utility model is to create an automated line for the production of wood-cement slabs with minimal use of manual labor.

The technical result of the utility model is to increase the quality of products and labor productivity, reducing the cycle time of forming plates.

The specified technical result is achieved by the fact that the production line for the production of plates for fixed formwork contains a transport system and a mixer, hopper-distributor, and pressing equipment with molds for plates installed in the technological sequence

a drying chamber, a chamber for holding plates and a device for cleaning and lubricating molds, the line is additionally equipped with a control system including programming, memory, control devices, equipment for the production of wood chips, installed in a separate line connected to the main line by means of a transport systems, machine tools for sawing plates and manipulating devices for stacking, disassembling a stack of plates and moving empty forms, and the transport system includes tape ransportery and / or driven roller conveyors, and / or gravity roller conveyors, and / or trays, and / or screw conveyors, and / or electric loaders and / or AGV.

The utility model is illustrated in the drawing, which shows the production line.

Automated production line includes the following components.

Equipment for the manufacture of wood chips is combined into one automatic production line, and for the manufacture of boards in another.

The automated production line includes distribution cabinets that regulate and control the entire installation, control all nodes. The installation for the production of plates is equipped with a memory programming control device.

The line includes a transport system, technological equipment for the production of wood chips, mixer, hopper-distributor, pressing equipment with molds for plates, drying chamber, chamber for holding plates and devices for cleaning and lubricating molds, sawing machines plates and

handling devices for stacking, disassembling a stack of plates and moving empty forms.

The line works as follows.

Wood in the form of logs with a diameter of 8-15 cm, cut down in autumn or winter, enters the unloading site.

Wood is fed to the debarking area (canopy), where the logs are freed from the bark on a special machine.

For debarking wood, a UK debarker is used. The debarker works on the principle of a rotor to which knives are attached. The loading conveyor and the machine rollers feed the wood to the rotor, while the cutting knives cut the bark into narrow strips, and the debarking knives scrape the bark from the surface of the log. The bark is discharged under the machine onto the conveyor and discharged to the outside.

The performance of the debarking machine is 6 m ³ / hour.

Raw wood should be sorted by species, with the removal of rot and damaged by the fungus logs. The content of bark and rot is allowed no more than 3%.

The bark is collected at a distance of at least 15 m from the places of storage of wood in a pile, harvested at the end of the shift for burning in the boiler room.

Using a loader with special forks for round logs, barked logs with a moisture content of up to 30% are transferred to the chip production site through a special transfer window in the main production building.

The logs are sawn on a circular saw trimming machine TsKB-40, operating at a speed of 60 m / s.

Pieces 1-1.2 m long are fed using the tray and conveyor to the crushing machine. The productivity of the crushing machine is up to 8 m / h.

The chips obtained by the crushing machine are transferred to a screener, where sorting and removal of metal particles takes place.

Coarse chips are returned to the crushing machine using a conveyor.

Finished wood chips are transported to the place of storage in a pile.

An electric forklift with a bucket feeds chips into the receiving hopper of an automatic plate production line. The hopper is equipped with a dispenser with two trays and a weighing device. The chips are fed into the mixer using a screw feed.

Cement carriers delivering cement are equipped with a pneumatic feed, through which cement is loaded into the cement silo of the cement warehouse.

The cement warehouse is a collapsible structure of full factory readiness. The main components of the delivery set are cement silo, filter, control cabinet.

The cement silo is connected to the flow hopper by a screw conveyor.

Filling of cement weights and their unloading is carried out as a given mass accumulates. Then the cement is fed into the mixer.

Liquid sodium glass is supplied in barrels. From barrels, liquid glass is pumped by an air diaphragm pump into a tank, from which it is pumped into a working tank. In the working tank, liquid sodium glass is mixed with water and then enters the mixer.

Liquid sodium glass from barrels is fed into a 1 m ³ collection tank, from which it is pumped to a working tank (2 × 700 l), which is provided for in the Velox automatic chip production line. In the working tank, liquid sodium glass is diluted to a predetermined concentration and fed into the process.

Granular aluminum sulfate is loaded directly into the working capacity of the production line, where it is soluble in water.

To dissolve lump aluminum sulfate, a dissolution unit is provided: a solvent and a pump for pumping a sulfate solution

aluminum into the working capacity of the production line.

Solid aluminum sulfate lump is used to prepare the aluminum sulfate solution.

Slug aluminum sulphate goes into production in small containers. From small containers, solid aluminum sulfate is poured into solvent 1 through a funnel 2. Production water with a temperature of 20-25 ° C is also supplied to the solvent.

Mixing in a solvent is carried out by a three-blade mixing device and an additional circulation pump.

When using lump aluminum sulfate in the apparatus, a removable grate with gaps of 10-I and 5 mm is provided. The intake of aluminum sulfate solution is provided from the upper level.

The full cycle time for preparing a solution of aluminum sulfate (loading, dissolving, settling, pumping) at a water temperature of 10 ° C is taken 10-12 hours.

The use of water with a temperature of ~ 25 ° C for dissolving aluminum sulfate can speed up the dissolution time.

The finished solution of aluminum sulfate from the solvent is pumped into the working capacities of the chipboard production line.

The resulting wastewater from a solvent of aluminum sulfate and a collection of liquid sodium glass with the appropriate pumps are sent to the technological process for producing chip cement boards.

Thus, all wastewater is completely utilized by the production process.

There are no harmful gas emissions into the atmosphere, solid and liquid wastes from these areas.

Water is added to create a mixture, even out moisture in the chips and constantly moisten the mixture.

Water is supplied to a container for dissolving lump aluminum sulfate, to working containers 2 × 700 l for diluting liquid glass and granular aluminum sulfate, to a working tank of 1000 l connected to a mixer for mixing with cement and more accurate dosing.

Wood chips, cement, water glass, aluminum sulfate and water are mixed in a mixer into a homogeneous mass. The surface of the chips is completely covered with a cement mixture. The duration of the mixing cycle should not exceed 10 minutes.

After mixing, the finished mixture should have a moisture content of 40 ... 43%. A fully automated monitoring of the parameters of the dosed elements has been established.

For the formation of plates, the prepared mixture through the preliminary, double and final feeders is layer-by-layer loaded into forms moving along the conveyor.

Plastic molds are pre-lubricated with oil to prevent adhesion of the cementitious mixture to the mold material.

The molds are transported using a conveyor under the preliminary, double and final estrus, where the molds are filled with the mixture in layers in 2 stages, with the filling and distribution of the lower layer, then with additives in the upper and lower layer, filling and distribution of the upper layer.

The conveyor speed can vary depending on the thickness of the plates and is in a precisely defined ratio with the feed rate of the mixture and the metering hoppers.

The next technological transition - stacking, is carried out using a manipulator that automatically captures the completed form and feeds it to the stack rack. Forms are set on top of each other, in a package of 15 forms.

At the same time, the lower protrusion of the upper form during pressing evenly compacts the mixture laid in it. Pressing is performed on the press. At the end of pressing, the packages are pulled together with steel bands and transported by fork electric lift truck to the hardening (heat treatment) section.

The size of the package is 2300 × 700 × 1500 mm, the estimated weight is 2000 kg.

The hardening process of the plates takes place in special chambers built on the hardening site.

An electric forklift truck loads 10 packages in 2 tiers. Operating temperature in the chamber + 40 ° С. Heat is created using water heaters.

The supply of hot water to the heaters, monitoring the constancy of temperature, turning off the heating equipment is performed automatically.

The duration of the hardening process in the chamber is 24 hours, the loading time is 2 hours. During the loading period, the illumination from the switch located on the external panel of the camera is turned on.

The camera has a tightly closing double-leaf gate that does not hamper the passage of the electric forklift.

In the hardening area, by means of heat treatment, the plates acquire strength sufficient to remove molds.

At the end of the heat treatment period, the packages by the electric forklift are returned to the line where the package is unstacked, the forms are removed on the stripping device, and the plates are trimmed.

Empty forms are fed to the device for cleaning adhered cement mixture with compressed air and returned to the beginning of the formation of slabs on the conveyor.

Next, the finished plates are collected in a pile and an electric forklift

transported to the ripening area.

Maturation occurs at a temperature not lower than + 16 ° C for 7 days using ventilation systems in chambers for holding plates. At the same time, moist air is removed and the stove is dried. The exhaust air is compensated by the supply of fresh air through a system of fans and heating heaters.

Plates are installed vertically with gaps for air access.

After 7 days of maturation, the plates should be aged (ripen) within 28 days. Maturation occurs in the areas of intermediate storage, the manufacture of plates with insulation, the manufacture of boxes, in the warehouse (ripening area) of plates and boxes.

The plates are cut to the required format on the cross-cutting machine TsME-ZB and on a multi-saw machine for straight-line longitudinal sawing to the size of the TsDK5-3 brand.

The manufacture of plates with insulation is made to order and is shipped from the manufacturing and intermediate storage directly to the construction site without long-term storage in the finished goods warehouse.

The concepts described in the description of chip-cement, chip-cement or cement-chip boards are equivalent.

The given example of a specific implementation of the production line does not cover all particular forms of execution. In particular, devices for transporting raw materials and boards can be made as described in the essence of the utility model, namely, the transport system can include conveyor belts and / or drive conveyors, and / or gravity conveyors, and / or trays, and / or screw conveyors , and / or electric forklifts, and / or robocars.

Claims (1)

A production line for the production of slabs for fixed formwork, comprising a transport system and a mixer, hopper-distributor, pressing equipment with molds, a drying chamber, a holding chamber for plates and a device for cleaning and lubricating molds, characterized in that it is additionally equipped with a control system, including programming, memory, control devices, equipment for the manufacture of wood chips, installed in a separate line, connected to the main line by means of a transport system, plate sawing machines and handling devices for stacking, disassembling a stack of plates and moving blank forms, the transport system including conveyor belts and / or drive conveyors, and / or gravity conveyors, and / or trays, and / or screw conveyors and / or electric forklifts and / or robocars.