1.Main technological principles

A. By utilizes the unique advantage of down to up pressing method instead of traditional up to down moulding pattern which widely adopted by similar domestic brick machine manufacturers,with three graded pressing procedures of pre-pressing,form pressing and pressure keeping,the hydraulic press automatically exhausts for a number of times.This allows the brick machine to effectively prevent microcrack from layers of the end products and produce high density,uniform bricks.Otherwise it overcomes the defect that traditional machines are easy to impact and damage the moulds.

B. Through simple different moulds replacement,it could not only produce autoclaved fly ash standard brick(240x115X53mm) and autoclaved sand-lime standard brick(240x115X53mm),blind-hole bric(240x115X90mm),but also could produce hollow brick,colorful pavement and square bricks with various specifications.

2. Similar technologies comparison:

A. Most of the hydraulic brick presses are adopting up to down pressing pattern in our nation,this method will make them have impact feature and are easy to break the edges and damage the moulds frequently,thus it will be difficult to control the thickness and the outer sizes tolerance of the bricks;In addition,most of them are adopting the constant delivery pump in their hydraulic station,this will cause high energy consuming and loud noise pollution.

B. DY1100 type full automatic hydraulic brick making machine,it adopts down to up pressing pattern and graded pressing work principles,by utilization of originally packaged variable delivery hydraulic pump,proportion priority valve and proportion direction valve etc., which imported from Germany Rexroth company,combining with build-in displacement sensor,it could control the height of materials filling and thickness of the bricks accurately,it could not only realize the high level request of pre-pressing,form-pressing and pressure keeping and brick quality rate,but also save energy,reduce noise and extend the service life of the moulds.

3. The advantage of this technology

A. high adaptablity for various solid wastes:

With built-in stock level sensor in the feeding hopper,it could fulfill detection and adjustment jobs for the materials,through the accurate setting of the height of the feeding hopper,it could ensure the uniformity of the material clothing and the stable features of the bricks.After continuous research and innovation on feeding system,expand the sizes of the oil cylinder and improve the whole pressure of our equipment,now it could suit for a wide range of various solid wastes as raw materials,unstable ingredients proportion and rough regulation in our nation,reduces the high accuracy requirement on raw materials proportion and batching.

B. high quality rate

By adopting cylinder built-in displacement sensor which can control the fillings of raw materials accurately,ensure the product tolerance only +/-1mm(national standard request for quality brick is +/-2mm).If the error happens,the signal will feedback to the control system immediately,the computer will compensate the materials feeding automatically,thus ensure the 100% quality rate of the products.It is also installed with built-in pressure sensor to test the strength of bricks accurately,thus ensure the compressive strength of the products could reach up to more than 15Mpa.

C. low operation cost

The main and sub pumps are all adopted originally packaged variable plunger pumps imported from Germany,it could create different pressures and flows according to the orders of equipment,and it has almost zero flow during the time intervals of the orders.

D. complete brick variety and wearable moulds

By changing different moulds,it could not only produce autoclaved fly ash standard brick(high utilization of fly ash above 65%),autoclaved sand-lime brick(240x115X53mm),blind-hole brick(240x115X90mm),but also could produce pavement and square bricks with various specifications.it almost no need maintaining during the service life of the moulds,thus reduce the down-time extremely.

4. Brick performance parameters

A.autoclaved fly ash brick:

volume density:1572kg/m3,

rupture strength:4.1Mpa,

compressive strength:27.4Mpa,

dry shrinkage ratio:0.26mm/m,

external size tolerance:+/-1mm.

B. autoclaved sand-lime brick:

volume density:1206kg/m3,

rupture strength:3.2Mpa,

compressive strength:22.5Mpa,

dry shrinkage ratio:0.31mm/m,

external size tolerance:+/-1mm.

Production line: 

1.Lime, gypsum griding section
Need jaw crusher,ball mill,in order to reduce covers an area of each one, adopt crushing and mixing mill at the same time.After the jaw crusher, the size should be less than 30mm ,materials will be sent to the ball mill by belt conveyor for fine grinding. Then send them into the store bin.

2.Ingredients
Main ingredients have fly ash, sand (slag), quick lime, fly ash can be added amount more than 65% highest, that will be digestion more industrial waste and reduce the product cost.(need mixer,Electronical dosing machine )

3.Adobes molding
Wheel grinding machine crushes the mixture,and then sent to DEYI automatic hydraulic brick machine, forcing molding.

4.Static stop maintenance
In order to make bricks reach to a certain strength before autoclaved maintenance,prevent to crack due to temperature change.

5.Autoclaved maintenance
Need Autoclave,boiler,autoclaved larry and windlass. 

The hydrolic pressure brick making machine/hydroform brick making machie/baking-free brick making machine production line:

1, crusher
2, bucket elevator
3, lime storage
4, ball mill
5, cement material bin
6, coal cinder bin
7, screw conveyor
8, batching machine
9, compulsive mixer
10, resolution bin
11, belt conveyor
12, conveyor
13, wheel mill
14, brick-making machine
15, palletizer (setting machine))
16, ferry vehicle
17, autoclave
18, fork lift