CN202038690U

CN202038690U - Metering type dry conveyor

Info

Publication number: CN202038690U
Application number: CN2011201279644U
Authority: CN
Inventors: 吕世文; 王好忠
Original assignee: WEIFANG TIANSHENG ELECTRIC CO Ltd
Current assignee: WEIFANG TIANSHENG ELECTRIC CO Ltd
Priority date: 2011-04-27
Filing date: 2011-04-27
Publication date: 2011-11-16
Anticipated expiration: 2021-04-27

Abstract

The utility model discloses a metering type dry conveyor which is applicable to the technical field of drying machinery and comprises scraper type conveyors arranged horizontally. A feed hopper is arranged above the starting end of the movement of an upper chain of the scraper type conveyor; and two drying hot dishes are arranged below the upper chain and a lower chain of the scraper type conveyor respectively, are distributed in a staggered way along the moving direction of the chains, and are provided with high-temperature high-pressure steam ports and water outlets. The metering type dry conveyor is provided with more than one scraper type conveyor arranged in parallel up and down on the same engine body, and a metering platform scale is arranged below the delivery end of the drying hot dish below the lower chain of the lowest scraper type conveyor. The metering type dry conveyor has high thermal transmission efficiency, is rapid in drying, has high yield, is convenient to control, can notably improve the yield of drying carbide slag products, and has a metering function, thus being well applied in practical production.

Description

The dry conveyer of metering-type

Technical field

The utility model relates to the oven dry field of mechanical technique, the dry conveyer of specifically a kind of metering-type that integrates dry, carries, measures.

Background technology

Present stage, fire coal tail gas is carried out in the technology of sulphur removal at thermal electric generation, (Main Ingredients and Appearance is Ca (OH) with carbide mud residue ₂) be state-of-the-art technology as sulfur elimination, but the carbide mud residue aqueous ingredients is up to 35～40%, and viscosity is big, and dry difficulty must be carried out predryingly could satisfying carbide mud residue pulverized coal preparation system operating needs, otherwise can be caused carbide mud residue pulverized coal preparation system productive capacity wretched insufficiency.

The utility model content

Technical problem to be solved in the utility model is: a kind of heat transference efficiency height, fast drying, output height are provided, can significantly improve the output of dry carbide mud residue product, and have the dry conveyer of metering-type of function of measuring.

For solving the problems of the technologies described above, the technical solution of the utility model is: the dry conveyer of metering-type, comprise horizontally disposed scraper conveyor, the top of the last chain movement initiating terminal of described scraper conveyor is provided with feeder hopper, the below of the cochain of described scraper conveyor and following chain is respectively equipped with the dry heat dish, the direction alternative arrangement of described two dry heat rim chain movements, described dry heat dish is provided with steam port and discharge port, described scraper conveyor is more than one, and be arranged in parallel up and down on same body, being positioned at, the throw-off end below of the dry heat dish of the following chain below of the described scraper conveyor of below is provided with weigher.

As a preferred implementation, described scraper conveyor is provided with three.

As a preferred implementation, described steam port is communicated with same heat supplying pipeline, and described discharge port is communicated with same delivery piping.

As a preferred implementation, an end of described scraper conveyor driven sprocket is provided with the tightening device of scalable chain degree of tightness.

As a preferred implementation, also be provided with exhaust system on the described body.

After having adopted technique scheme, the beneficial effects of the utility model are: high-moisture, after full-bodied carbide mud residue is hauled out by flight chain from feeder hopper, enter the dry heat dish, feed high temperature (＞150 ℃) in the dry heat dish, high pressure steam, the heat dish is gone up material absorbs high pressure steam in slow traveling process heat, part water is evaporated to steam, the carbide mud residue aqueous ingredients reduces gradually, carbide mud residue behind the preliminarily dried unloads on the dry heat dish of falling down one deck successively, at every turn the unloading of material both played bulk material, increase the effect of permeability to air, make again and originally be positioned at bed of material top, material away from the dry heat dish is turned to bed of material bottom and presses close to the dry heat dish, and with flight chain backhaul inverted running, continue to be subjected to heated drying, through after the dry heat dish drying of last one deck, unload on the weigher that is put into below, through entering the next stage drying equipment after the metering.

Because three scraper conveyors adopt mode in parallel up and down to arrange that import steam from same heat supplying pipeline, the drying effect of each dry heat dish is identical, has guaranteed the drying efficiency that complete machine is higher.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the fundamental diagram of the utility model embodiment;

Fig. 2 is the structural representation of the utility model embodiment;

Among the figure: 1. the first dry heat dish; 2. the second dry heat dish; 3. the 3rd dry heat dish; 4. the 4th dry heat dish; 5. the 5th dry heat dish; 6. the 6th dry heat dish; 7. chain; 8. steam port; 9. feeder hopper; 10. weigher; 11. body; 12. exhaust system; 13. heat supplying pipeline; 14. delivery piping; 15. tightening device; 16. motor; 17. discharge port.

The specific embodiment

As shown in Figure 1, fundamental diagram for the dry conveyer of this metering-type, in horizontally disposed scraper conveyor operational process, high-moisture, full-bodied material evenly is tiled on the dry heat dish of the top after feeder hopper is hauled out, in heat along high temperature and high pressure steam in the absorption dehydration heat dish in the slow traveling process of the direction of arrow among the figure, part water is evaporated to steam, the carbide mud residue aqueous ingredients reduces gradually, material behind the preliminarily dried unloads from the throw-off end of dry heat dish and falls down on one deck dry heat dish, at every turn the unloading of material both played bulk material, increase the effect of permeability to air, make again and originally be positioned at bed of material top, material away from the dry heat dish is turned to bed of material bottom and is close to the dry heat dish, and with chain backhaul inverted running, continue to be subjected to heated drying, after drying through multilayer dry heat dish, the material that meets operating needs is promptly unloaded on the weigher that is put into below, through entering the next stage drying equipment after the metering.

Shown in Fig. 1 and Fig. 2 are common, structural representation for the dry conveyer of this metering-type, this conveyer comprises at least one scraper conveyor, described scraper conveyor is horizontally disposed with, shown in the figure is the situation of three scraper conveyors, and these three scraper conveyors are arranged in parallel up and down on same body 11, the below of the cochain of described three scraper conveyors and following chain is respectively equipped with the dry heat dish, described dry heat dish is provided with steam port 8 and discharge port 17, described dry heat dish is followed successively by the first dry heat dish, 1 to the 6th dry heat dish 6 from top to bottom, and the described first dry heat dish, 1 to the 6th dry heat dish 6 is along chain 7 travel direction alternative arrangement.

The top of the last chain movement initiating terminal of the scraper conveyor of described the top is provided with feeder hopper 9, and the throw-off end below of described the 6th dry heat dish 6 is provided with weigher 10.

Described each steam port 8 is communicated with same heat supplying pipeline 13, feed high temperature (＞150 ℃), high pressure steam in the described heat supplying pipeline 13, each discharge port 17 is communicated with same delivery piping 14, like this, high temperature and high pressure steam is fed in each dry heat dish by heat supplying pipeline 13, after heating each dry heat dish, condensate water and residual steam can be discharged from delivery piping 14, and six dry heat dishes adopt parallel way to arrange, import steam from same heating tube, the drying effect of each dry heat dish is identical, has guaranteed the drying efficiency that complete machine is high.

Described scraper conveyor driven sprocket one end is provided with the tightening device 15 of scalable chain 7 degrees of tightness, on the other hand, also is provided with exhaust system 12 on the described body 11, has more increased the work efficiency of this conveyer.

In control, for adapting to the requirement of different output, the drive motor of scraper conveyor adopts variable frequency regulating speed control, motor of a Frequency Converter Control, weigher LOAD CELLS and speed sensor are gathered the weight signal of material and the speed signal of endless belt respectively, weighing instrument is converted into weight signal and speed signal the instant flow rate of material, and make comparisons with given flow, the output frequency change control signal, the drive motor of synchro control weigher and the drive motor of dry conveyer, adjust mass flow in real time, guarantee that output meets manufacturing technique requirent, this control system can be docked with DCS and be carried out DCS control.

The utility model is not limited to the above-mentioned specific embodiment, and all are based on technical conceive of the present utility model, and the structural improvement of having done all falls among the protection domain of the present utility model.

Claims

1. the dry conveyer of metering-type comprises horizontally disposed scraper conveyor, it is characterized in that:

The top of the last chain movement initiating terminal of described scraper conveyor is provided with feeder hopper, the below of the cochain of described scraper conveyor and following chain is respectively equipped with the dry heat dish, the direction alternative arrangement of described two dry heat rim chain movements, described dry heat dish is provided with steam port and discharge port;

Described scraper conveyor is more than one, and is arranged in parallel up and down on same body;

Being positioned at, the throw-off end below of the dry heat dish of the following chain below of the described scraper conveyor of below is provided with weigher.

2. the dry conveyer of metering-type as claimed in claim 1, it is characterized in that: described scraper conveyor is provided with three.

3. the dry conveyer of metering-type as claimed in claim 1, it is characterized in that: described steam port is communicated with same heat supplying pipeline, and described discharge port is communicated with same delivery piping.

4. the dry conveyer of metering-type as claimed in claim 2, it is characterized in that: described scraper conveyor driven sprocket one end is provided with the tightening device of scalable chain degree of tightness.

5. the dry conveyer of metering-type as claimed in claim 2 is characterized in that: also be provided with exhaust system on the described body.