The technical precision screening enough do vibrating screen

1. Screen mesh plug (to increase the anti clogging device).

2. Cast material moisture into the vibrating screen is too large (viscosity, after appropriate input vibration after drying sieve).

3. The vibration sieve surface feeding uneven (add the material divider)

4. The vibration sieve surface material layer is too thick (increasing material divider, control the feeding amount)

5. Often to sieve sieve load and vibration reducing vibration cleaning gently

6. Change the screen box angle

7. Mediation of the vibration sieve feeding quantity

8. Tension screen, narrow transmission leather

The Application and Introduction of Rainproof Cover

Application

Rainproof is also known as color rainproof cover, conveyor rainproof cover, conveyor dust proof cover etc..Rainproof cover can be widely used in power plants, cement plants, steel plants, chemical plants, coal plant, port, dock, mine enterprises. Rainproof cover has a great effect on the goods and environment. It can reduce the loss and waste of the goods in the transportation.It can ensure safe and reliable of belt conveyor in the transportation. Also, rainproof cover prolongs the service life of conveyor.

Types

Rainproof cover has the stationary type, open type and with observation window type. We can know clearly whether the belt conveyor is running or not. The main colors of rainproof cover is blue, black, red and others.

Installation

1.As two of the  rainproof cover, stationary type and open type cover are made of galvanized corrugated steel or color coated steel.Generally, in every 10 covers,there are 9 stationary type covers and 1 open type cover. Also, these two covers can be arranged alternately.

2.The framework of fixed belt conveyor is connection angle steel or Z steel, and its length is the same as the  cover of belt conveyor. If it needs to install the support angle steel, we should weld the support angle steel  on both sides of the rack,and then weld  the connection angle steel or Z steel to the support angle steel.

3.When we install the rainproof cover, we should install it from one end to the other end in order. Also,it is forbidden to stand in the rainproof cover and should not hit it.

4. We can fix the rainproof cover in the connection angle steel or Z steel by tapping screws. Each one should more than 4 fixed points.

5.We can install one observation type in every 10 other rainproof cover in order to examine or maintain. 

 

How to deal with the phenomenon of bucket elevator returning material too much

The phenomenon of returning material in operating bucket elevator is that the material can’t completely discharge from the bucket elevator but some falls into the inside of machine. When lifting the material, if there is returning so much material, it will reduce production efficiency, increase power consumption and material broken percentage.

 The reasons why there is returning so much material and the approaches to solve them are as following:

1.The speed of hopper is so fast. When the bucket elevator lifts different materials, the speed of hopper is different. In general, lifting dry powder or granular material, the speed is about 1~2m/s; lifting lump material, the speed is about 0.4~0.6m/s; lifting wet powder or granular material, the speed is about 0.6~0.8m/s. If the speed is too fast, the material will be discharged in advance and then causes the phenomenon of feeding material back. At this time, we should bring down the speed of hopper according to the lifting material.

2.The discharge tongue plate in die exit is installed improper. If the discharged tongue plate is far from dumped position, it will cause return material. So we should adjust the position of tongue plate in time. 

 

High performance conveyor-Buried Scraper Conveyor

 With regard to scraper conveyor, there are many types.Buried scraper conveyor belongs to it.The main features of buried scraper conveyor are that can be in a slant or vertical angle and operate together or individually.So it is universal.Buried scraper conveyor has a simple structure,light weight,small volume and good sealing.Also,it is easy to install or maintain.It not only can convey material in a horizontal angle,but also in a slant or vertical angle.What’s more, it can feed or discharge materials in many points.So its layout is very flexible.The working conditions can be changed markedly when it convey materials because the shell is enclosed.And then it can protect environment.

 

    We can solve the problem existed in medium plate which is made from steel through using ultra high molecular weight polyethylene.Thus, we can get plastic scraper conveyor.With regard to large-scale scraper conveyor,we can apply the method of steel-plastics compounding material.Using ultra high molecular weight polyethylene as lining,it can improve the abrasion resistance of large-scale scraper conveyor,and then prolong the service life,reduce the friction coefficient and bring down power consumption. It has great significance for large-scalescraper conveyor.Because of these features,buried scraper conveyor gets much attention of enterprises.
 

The introduction and application of tension device

Belt conveyor is a transport machine that is driven by friction and it can transport materials continuously. Belt conveyor needs tension force in order to ensure the normal and stable operation of conveyor and meet the friction driving force between the driving drum and the belt. It is very important to choose the proper tension device when we design the belt conveyor.

Functions

1.Tension device can make the belt conveyor have enough initial tension force so that can ensure the necessary friction between belt and driving drum.It also can reserve friction to meet the requirements of friction drive of transmission drum.

2.Tension device can ensure the tension force of minimum tension point in order to satisfy the pendulous restriction conditions of conveying belt so that can make sure of the normal running of conveyor.

3.To provide the necessary route for conveyor belt joint.

Detailed rules and regulations of operational approaches

      When we turn off belt conveyor, the stored energy of conveying belt will release rapidly; and then it will damage its mechanical components and conveying belt itself, especially in the dip angle of belt conveyor and the tension device. When the belt conveyor brakes suddenly, the speed of driving drum will decrease rapidly and the linear displacement will less than the displacement of upstream drum. This characteristics will decrease the mechanical stress of upstream conveying belt and the deformation of belt will smaller, while the mechanical stress of downstream conveying belt will increase as well as deformation. That is to say,when the speed of transmission drum suddenly reduces, the returning conveying belt under the transmission drum caused by the mechanical stress of belt will be strained while returning conveying belt and upward conveying belt below the transmission drum will be relaxed because of the inertia of mechanical equipment. Thus, tension device of conveying belt should pay much attention to its deformation and brake the displacement of upstream position.

How to deal with the phenomenon of bucket elevator returning material too much

The phenomenon of returning material in operating bucket elevator is that the material can’t completely discharge from the bucket elevator but some falls into the inside of machine. When lifting the material, if there is returning so much material, it will reduce production efficiency, increase power consumption and material broken percentage.

 The reasons why there is returning so much material and the approaches to solve them are as following:

1.The speed of hopper is so fast. When the bucket elevator lifts different materials, the speed of hopper is different. In general, lifting dry powder or granular material, the speed is about 1~2m/s; lifting lump material, the speed is about 0.4~0.6m/s; lifting wet powder or granular material, the speed is about 0.6~0.8m/s. If the speed is too fast, the material will be discharged in advance and then causes the phenomenon of feeding material back. At this time, we should bring down the speed of hopper according to the lifting material.

2.The discharge tongue plate in die exit is installed improper. If the discharged tongue plate is far from dumped position, it will cause return material. So we should adjust the position of tongue plate in time. 

 

bucket elevator

Cargos Has Been Delivered for Our Customer

Our customer in Xi’an has ordered three fixed belt conveyors in our company on May 9^th, 2014. And our customers paid a visit to our factory for inspection on Feb 11^th, 2015, and they were satisfied with our products and service. Besides, we had a communication on a long-term cooperation, both of us believe trade between us will surely develop fast and to our mutual benefit. On Mar 14^th, 2015, the order has been delivered successfully. Now, the belt conveyors are in normal operation. And our customer speaks highly of our company, we also anticipate future cooperation with them. 

The Packaged Chassis

 Our Customer is inspecting

 The idler set of fixed belt conveyor.

 

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How to deal with the feed casting of belt conveyor

It is a common problem that belt conveyor will appear the phenomenon of feed casting.And the reason is multi-aspect.The most important thing is that we should emphasis on its maintenance in daily life.

    1.Feed casting in the transferring point.This kind of situation will be happened in the hopper and guide chute.If belt conveyor is overload,it will result in the damage of keep-off rubber apron board. We can slove this promble by controling the conveying capacity and strengthening the maintenance.

    2.There is feed casting when concave section of belt conveyor suspends in midair.The reason why concave section of belt conveyor suspends isthat curvature radius is smaller. At this time, the situation that beltconveyor becomes groove will change. Because belt has departured trough roller unit, the groove angle becomes smaller that will result in the phenomenon of feed casting. Therefore, we should adopt the larger curvature radius as far as possible in the design stage to avoid happening this kind of situation. 

    3.When the belt is off tracking, it will appear the phenomenon of feed casting.The reason is that the height of two edges changes when the belt is running.Thus,one side of belt is high while the other is low. And the n the material will drop out from the lower side. We can adjust the belt running deviation to solve it.

Delivery for Gyratory Screen & Bucket Elevator

High performance conveyor-Buried Scraper Conveyor

With regard to scraper conveyor, there are many types.Buried scraper conveyor belongs to it.The main features of buried scraper conveyor are that can be in a slant or vertical angle and operate together or individually.So it is universal.Buried scraper conveyor has a simple structure,light weight,small volume and good sealing.Also,it is easy to install or maintain.It not only can convey material in a horizontal angle,but also in a slant or vertical angle.What’s more, it can feed or discharge materials in many points.So its layout is very flexible.The working conditions can be changed markedly when it convey materials because the shell is enclosed.And then it can protect environment.

    We can solve the problem existed in medium plate which is made from steel through using ultra high molecular weight polyethylene.Thus, we can get plastic scraper conveyor.With regard to large-scale scraper conveyor,we can apply the method of steel-plastics compounding material.Using ultra high molecular weight polyethylene as lining,it can improve the abrasion resistance of large-scale scraper conveyor,and then prolong the service life,reduce the friction coefficient and bring down power consumption. It has great significance for large-scalescraper conveyor.Because of these features,buried scraper conveyor gets much attention of enterprises.

Bucket elevator

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