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Comparison and analysis of the cost of tube belt conveyor and fully enclosed corridor belt conveyor

Classification: company news
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Release time: 2020-03-27
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【概要描述】On April 28, 2019, the Ministry of Ecology and Environment and other 5 departments jointly issued the "Opinions on Promoting the Implementation of Ultra-Low Emissions in the Iron and Steel Industry", and the summary of the material transport links in the opinions:

Comparison and analysis of the cost of tube belt conveyor and fully enclosed corridor belt conveyor

(Summary description)On April 28, 2019, the Ministry of Ecology and Environment and other 5 departments jointly issued the "Opinions on Promoting the Implementation of Ultra-Low Emissions in the Iron and Steel Industry", and the summary of the material transport links in the opinions:

Categories:company news
Author:
Origin:
Time of issue:2020-03-27
Views:3

Information

On April 28, 2019, the Ministry of Ecology and Environment and other 5 departments jointly issued the "Opinions on Promoting the Implementation of Ultra-Low Emissions in the Iron and Steel Industry", and the summary of the material transport links in the opinions:

2. Material transportation. Powdery materials such as lime, dedusting ash, desulfurization ash, and fly ash shall be transported in a closed manner using tubular belt conveyors, pneumatic conveying equipment, tankers, etc. Iron ore concentrate, coal, coke, sintered ore, pellets, limestone, dolomite, ferroalloy, blast furnace slag, steel slag, desulfurized gypsum and other bulk or sticky materials should be transported in a closed manner using a tubular belt conveyor, or Adopt belt corridors and other methods for closed transportation; if it is really necessary for automobile transportation, use closed compartments or tightly closed lids, and dust suppression measures such as humidification should be taken when loading and unloading vehicles. Material conveying and dropping points should be equipped with air collection hoods and dust removal facilities, or dust suppression measures such as spraying should be taken. Wheel and body washing facilities shall be provided at the exit of the yard. The roads in the factory area should be hardened, and measures such as cleaning and watering should be taken to keep them clean.

The conveyance of non-powdered materials strictly requires the use of a tube belt machine or a fully sealed belt corridor. Based on the weight and cost of these two conveying forms, the following comparative analysis is made for reference in design-related decisions.

I. Comparison of conditions

输送 1. Conveying materials: coal, specific gravity 0.85, capacity 250t / h, block below 80mm, room temperature;

2, the belt conveyor belt speed is 2.5, the pipe diameter is 250mm; the groove belt conveyor belt speed is 1.6, and the bandwidth is 800mm;

3. Both the belt conveyor and the belt conveyor take the aisle on both sides, and the aisle width is 800mm;

4. Both the belt conveyor and the belt conveyor are overhead structures with a unified span of 24m;

5. The distance between the upper and lower rollers of the straight section of the tube belt machine is 1.6m, the distance between the upper rollers of the belt conveyor is 1.2m, and the distance between the lower rollers is 3 meters;

6. The total length of the conveyor is 200 meters, considering the selection and driving of the tape. The groove belt power is 37kw and the tube belt power is 75kw.

7. The tube truss structure is as follows:

　　8. The structure of the fully enclosed belt truss is as follows:

　　9. The cost comparison does not consider the supporting columns and the head and tail driving parts for the time being, and only compares the structure of 24 meters truss with the closure, belt and roller;

Summary of weight comparison

　　1. Weight comparison of supporting roller model

	Roller model	Number of rollers	Roller single weight kg	Roller total weight kg	Single weight of stand kg	Total weight of stand kg
Belt conveyor	89x315	60	3.59	215.4	11.32	226.4
Tube belt machine	89x230	90	2.75	247.5	2	180

　　1) The belt carrier supporting rollers are standard three rollers with 35-degree slot angle;

　　2) The supporting rollers of the tube belt machine are arranged in the form of hexagons on both sides;

　　2.Comparison of weights of backhaul roller models

	Roller model	Number of rollers	Roller single weight kg	Roller total weight kg	Single weight of stand kg	Total weight of stand kg
Belt conveyor	89x950	8	9.73	77.84	3.77	30.16
Tube belt machine	89x230	90	2.75	247.5	2	180

　　1) The return roller of the belt conveyor is a standard parallel lower roller;

　　2) The return rollers of the tube belt machine are arranged on both sides of the hexagon;

　　3. Comparison of the weight of the middle frame leg structure

	Weight of intermediate frame kg	Number of outriggers	Number of Outriggers II	Outrigger weight kg	Total weight of structure kg
Belt conveyor	358	4	4	133	491
Tube belt machine	0	0	0	0	0

　　1) The middle frame and outriggers are selected according to light and medium standards

　　2) The H value of the outrigger is selected according to 800;

　　4, weight comparison of tape models

	Tape model	Tape single weight kg	Tape weight kg
Belt conveyor	B800-EP100 / 4 (4.5 + 1.5)	9.376	450
Tube belt machine	B1000-GEP200 / 4 (5 + 3)	14.8	710.4

　　5. Weight comparison of truss structure

	Truss section size	Weight of truss structure kg	Aisle t6 pattern board kg	Truss closed weight kg	Total truss weight kg
Belt conveyor	3200x2950	6800	3200	3690	13690
Tube belt machine	660x1320	6000	1810	330	8140

　　1) The cross section of the belt conveyor corridor is shown in the figure below. The aisle plate includes the sealing plate at the bottom of the truss, and the closed portion of the truss includes the side and top closed purlins and color steel plates, excluding the window portion;

　　2) The cross-section dimensions of the tube belt truss are shown below. The truss structure includes the truss body, the walkway and the railings. The walkway pattern plate includes the two-side walkway considering the pipe belt machine does not have backhauling. Rain-proof color plate and fixing frame above.

　　6, weight summary comparison

	Roller weight	Roller bracket weight	Middle frame outrigger weight	Tape weight	Truss weight	Weight summary
Belt conveyor	293	256	491	450	13690	15180
Tube belt machine	495	360	0	710	8140	9705

　　7, weight comparison summary:

　　1) The two body parts do not include tape and truss structure. The total weight of the belt conveyor is 293 + 256 + 491 = 1040kg, the total of the belt conveyor is 495 + 360 = 855kg, and the belt conveyor is about 20% heavier than the tube conveyor.

　　2) The main body contains tape. The belt conveyor is 1040 + 450 = 1490kg, the tube conveyor is 855 + 710 = 1565kg, and the tube conveyor is 5% heavier than the belt conveyor

　　3) The biggest difference between the two weights is the truss part. The weight of the closed corridor of the belt conveyor is basically 1.7 times the weight of the tube belt truss;

　　4) The weight of the two trusses is much greater than the weight of the equipment body. The total weight of the belt conveyor after all the weights are about 1.6 times the total weight of the pipe belt conveyor.

　　5) If the closure is not considered, the weight of the belt truss and tube truss is basically the same.

Third, the cost comparison summary

	Roller price	Roller bracket price	Intermediate frame legs	Tape price	Truss price	Price summary
Belt conveyor	3520	2560	4910	7680	136900	155570
Tube belt machine	5940	3600	0	17040	81400	107980

　　1. Price description:

　　1) The roller price is estimated at 12 yuan / kg;

　　2) Roller support and other structural parts are estimated at 10 yuan / kg;

　　3) B800 grooved tape is estimated at 160 yuan / meter; B1000 tubular tape is estimated at 355 yuan / meter;

　　4) The truss price is estimated at 10 yuan / kg;

　　2. Price comparison summary:

　　1) Summarizing the main parts of belt conveyors such as rollers, roller brackets, intermediate frames and legs, and tape, the cost of the belt conveyor is 3520 + 2560 + 4910 + 7680 = 16370 yuan, and the cost of the tube belt machine is 5940 + 3600. + 0 + 17040 = 26580 yuan, the tube belt machine is 1.6 times the cost of the belt machine.

　　2) According to the environmental protection requirements, the cost of the belt conveyor is 155570 yuan, the cost of the pipe belt machine is 107980 yuan, and the cost of the belt conveyor is 1.44 times that of the pipe belt machine.

Fourth, the conclusion

　　1. Contrast the overhead all-pass closed corridor belt conveyor with the overhead tube belt machine. The weight of the belt conveyor is about 1.6 times the weight of the tube belt machine, the cost of the belt conveyor is about 1.44 times the cost of the tube belt machine, and the investment of the tube belt machine The cost performance is better than the closed corridor conveyor.

　　2. If it is necessary to reduce the cost of the closed corridor belt conveyor, you can start from the structure of the corridor. For a specific summary, please refer to the next issue "Comparative Analysis of the Cost of Tube Belt Conveyor and Fully Closed Corridor Belt Conveyor (II)".

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