CN202438474U

CN202438474U - Dry type coal gangue density separator

Info

Publication number: CN202438474U
Application number: CN2012200060475U
Authority: CN
Inventors: 张士博; 倪晓燕; 徐立华; 张勇; 王春华
Original assignee: China University of Mining and Technology CUMT
Current assignee: China University of Mining and Technology CUMT
Priority date: 2012-01-09
Filing date: 2012-01-09
Publication date: 2012-09-19
Anticipated expiration: 2022-01-09

Abstract

The utility model discloses a dry type coal gangue density separator, which comprises a belt conveyer, a coal gangue conveyer, a coal conveyer and a computer, wherein the coal gangue conveyer is arranged below the belt conveyer; the coal conveyer is arranged on the front lower part of the belt conveyer; a high-pressure and high-frequency air valve of which the nozzle faces the belt conveyer is arranged at a butting position between the coal conveyer and the belt conveyer; a signal generator and a signal receiver which are connected with the computer are symmetrically arranged above the belt conveyer; and the bottom of a conveying belt of the belt conveyer is provided with a weighing sensor which is connected with the computer. According to the device, coal and coal gangue can be identified, only corresponding characteristics are required to be measured in an identifying process, resources are not consumed, and pollution is not caused. The dry type coal gangue density separator can be used for realizing effective identification and separation of coal and coal gangue, and has the advantages of small occupation size, low resource consumption and environment friendliness.

Description

Dry type gangue density separation machine

Technical field

The present invention relates to a kind of dry sorter for very, especially a kind of dry type gangue density separation machine that is applicable to that bastard coal separates.

Technical background

Spoil is the accompaniment in the coal mining process; Seldom utilized by people because its calorific value is low, annual all have a large amount of spoils together to go out well with coal, and bulk deposition forms hillock on ground; Show according to related data; In China about more than 1600 hillocks are arranged, its total amount has surpassed 3,000,000,000 tons, these years a large amount of land occupations of spoil; And can become soft because of standing wind and weather all the year round, sulfide that wherein is mingled with and heavy metal element all can cause serious pollution to soil and water source on every side.And spontaneous combustion also can take place in hillock its inside in banking process, and its combustion product gives off an unpleasant smell and harmful substance, and surrounding environment is damaged.And these spoils are labor energy and space in lifting process, the operating efficiency that the waste resource also reduces.Present main way is that the mode through coal washing realizes separating of coal and spoil on mine; This method need consume great amount of water resources; The area of lack of water is had very big restricted, and can cause serious harm, and the sorting of down-hole is carried out through manual work environment; Consume great amount of manpower like this, and accuracy of identification is poor.

Summary of the invention

The purpose of the utility model is the weak point that overcomes in the prior art, and a kind of dry type gangue density separation machine of simple in structure, good separation effect is provided.

For realizing above-mentioned purpose; The dry type gangue density separation machine of the utility model; Comprise ribbon conveyer, spoil conveyer, coal conveyer, computer; Described spoil conveyer is located at the ribbon conveyer below, and described coal conveyer is located at the forward, lower part of ribbon conveyer, and the joint of coal conveyer and ribbon conveyer is provided with the high voltagehigh frequency air valve of nozzle face to ribbon conveyer; The top of ribbon conveyer is arranged with signal generator and the signal receiver that links to each other with computer, and the conveyer belt bottom of ribbon conveyer is provided with the LOAD CELLS that links to each other with computer.

Beneficial effect: the utility model can be discerned coal and spoil, and identifying only need measure individual features, and consumption of natural resource does not pollute yet.Effective identification that can realize coal and spoil with separate, it is simple in structure, good separation effect, take that volume is little, consumption of natural resource is few, free from environmental pollution.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Among the figure: 1. feed hopper, 2. ribbon conveyer, 3. spoil conveyer, 4. coal conveyer, 5. signal generator, 6. signal receiver, 7. computer, 8. high voltagehigh frequency air valve, 9. LOAD CELLS.

The specific embodiment

Below in conjunction with accompanying drawing the embodiment of the utility model is done further description:

The dry type gangue density separation machine of the utility model mainly is made up of ribbon conveyer 2, spoil conveyer 3, coal conveyer 4, signal generator 5, signal receiver 6, computer 7, high voltagehigh frequency air valve 8 and LOAD CELLS 9; Described spoil conveyer 3 is located at ribbon conveyer 2 belows; Described coal conveyer 4 is located at the forward, lower part of ribbon conveyer 2; Coal conveyer 4 is provided with the high voltagehigh frequency air valve 8 of nozzle face to ribbon conveyer 2 with the joint of ribbon conveyer 2; The top of ribbon conveyer 2 is arranged with the signal generator 5 and signal receiver 6 that links to each other with computer 7, and the conveyer belt bottom of ribbon conveyer 2 is provided with the LOAD CELLS 9 that links to each other with computer, and LOAD CELLS 9 is contacted with belt of belt conveyor by two roller bearings; When material passes through; Roller bearing can be passed to LOAD CELLS 9 with power, and LOAD CELLS 9 is passed to computer 7 with the weight information that obtains, the signal that computer 7 transmits through analytic signal receiver 6 and LOAD CELLS 9; Obtain material density identification material, and control high voltagehigh frequency air valve 8 separates coal and spoil.

Operation principle: material is fallen on the ribbon conveyer 2 by feed hopper 1, and ribbon conveyer 2 drives materials and travels forward, and receives the irradiation of the optical signal that signal generator 5 sends; Reflection ray is received by signal receiver 6, and meanwhile, LOAD CELLS 9 is measured quality of material; Signal receiver 6 transfers to central computer 7 with LOAD CELLS 9 with resulting signal, and central computer 7 obtains material density through computed information, and with threshold ratio; If exceed threshold value then send separation signal, open high voltagehigh frequency air valve 8, high-speed gas impacts spoil; Make it depart from initial trace, and fall into spoil conveyer 3; If in threshold range, then do not send separation signal, high voltagehigh frequency air valve 8 is closed, and normally falls into the coal receiving hopper.

Claims

1. dry type gangue density separation machine; Comprise ribbon conveyer (2), spoil conveyer (3), coal conveyer (4), computer (7); It is characterized in that: described spoil conveyer (3) is located at ribbon conveyer (2) below; Described coal conveyer (4) is located at the forward, lower part of ribbon conveyer (2); Coal conveyer (4) is provided with the high voltagehigh frequency air valve (8) of nozzle face to ribbon conveyer (2) with the joint of ribbon conveyer (2); The top of ribbon conveyer (2) is arranged with signal generator (5) and the signal receiver (6) that links to each other with computer (7), and the conveyer belt bottom of ribbon conveyer (2) is provided with the LOAD CELLS (9) that links to each other with computer.