Mining machine with adjustable hood-scoop assembly

• US 4,550,952 A
• Filed: 08/31/1983
• Issued: 11/05/1985
• Est. Priority Date: 08/31/1983
• Status: Expired due to Fees

• Current Assignee: Hall, Harvey
• Original Assignee: Hall, Harvey
• Inventors: Hall, Harvey
• Primary Examiner(s): Novosad, Stephen J.
• Assistant Examiner(s): Goodwin, Michael A.
• Application Number:
  US06/528,061
• Time in Patent Office: 797 Days
• Field of Search: 299/18, 299/64, 299/31, 299/69, 299/12, 175/96, 175/95, 173/64, 173/52, 173/59, 406/152
• US Class Current: 299/64
• CPC Class Codes: E21C 27/20 Mineral freed by means not involving slitting
• CPC Class Codes: E21C 35/20 General features of equipment for removal of chippings, e.g. for loading on conveyor

Abstract

The invention disclosed herein is a mining machine with an adjustable hood-scoop assembly. The machine provides a means to remove coal from the face of a seam and extract the removed coal to a position removed from the mining area utilizing a vacuum system. The instant mining machine encloses the total face of the mine seam and acts to remove all solid and gaseous material from the mining area. Use of this apparatus in the mining of coal will provide better insurance for a healthy methane-free environment for the miner. The hood-scoop assembly is constructed to provide both horizontal and vertical moving plates so as to encompass totally the area contacted by the coal removal means, such as a multitude of air hammers. The machine is both braced and made mobile by means of vertical hydraulic jacks. Hydraulic cylinder means on the hood-scoop assembly are provided with specific trackways to insure four-way movement of the adjustable plates as shown in FIGS. 1, 2, 4 and 7.

Claims

1. A pneumatic coal mining machine which comprises:

(a) a longitudinal mobile chassis having a pressurized air inlet means and a vacuum outlet means at one extreme of said chassis;

(b) pneumatic coal removal and pulverization means at opposite extreme of said chassis to remove coal from a face of coal;

(c) an adjustable hood-scoop situated surrounding the substantially complete perimeter in juxtaposition with respect to said removal and pulverization means said scoop comprising four separate plates, each of which has its position individually changed with respect to the perimeter of the seam of said coal being mined; and

(d) a vacuum conveyor means for extraction of substantially all of said coal removed from said face and for removal of indigenous gases created by said coal removal.

2. The mobile mining machine of claim 1 wherein said pneumatic means functions to both remove the coal from the mine seam and convey the same to said area segregated from the work area.

3. The mining machine of claim 2 wherein said area segregated from the work area is located on the surface of a mine.

4. The pneumatic coal mining machine of claim 1 wherein said pneumatic coal removal and pulverizing means comprises a plethora of air hammers which reduce said coal to a particle size sufficient for passage through said vacuum conveyor means.

5. The pneumatic coal mining machine of claim 1 wherein said vacuum conveyor means is comprised of an elongated conduit of sufficient diameter to provide for passage of said pulverized coal particles to a spot segregated from the work area of the coal seam.

6. The pneumatic coal mining machine of claim 1 wherein indigenous gases created by said coal removal comprise methane which is immediately withdrawn via the vacuum to a spot where it is vented to the ambient atmosphere.

7. A mining machine which comprises:

(a) an elongated mobile frame member;

(b) a coal removal means at one extremity of said frame and in direct communication therewith;

(c) a pressurized air inlet means;

(d) a vacuum discharge outlet means;

(e) a hood-scoop of varying dimensions for enclosing said coal removal means against a seam of coal, wherein said hood-scoop possesses four plates which are operated independently of one another comprising;

(i) a first horizontal plate situated above and to the left with respect to said coal removal means and being in communication with a vertical and horizontal movement means;

(ii) a second horizontal plate situated above and to the right with respect to said coal removal means and being in communication with a vertical and horizontal movement means;

(iii) a third horizontal plate situated below and to the left with respect to said coal removal means and being in communication with a vertical and horizontal movement means;

(iv) a fourth horizontal plate situated below and to the right with respect to said coal removal means and being in communication with a vertical and horizontal movement means.

8. The mining machine of claim 7 wherein said first, second, third and fourth horizontal plates after adjustment take the configuration of the perimeter of the coal removal means and are situated flush with the seam of said coal.

9. The mining machine of claim 7 wherein said vertical and horizontal movement means in communication with said first, second, third and fourth horizontal plate comprises a hydraulic cylinder for each of said plates.

10. The mining machine of claim 9 wherein said cylinder is connected by means of an eccentric pivot joint for movement in the horizontal direction.

11. The mining machine of claim 7 wherein said first, second, third and fourth plates traverse either a horizontal or vertical keyway for respective vertical or horizontal movement.

12. The mining machine of claim 11 wherein the portion of the plates at the extremity other than flush with the seam of coal are connected to the front extremity of the mobile chasis.

13. The mining machine of claim 11 wherein said first and second horizontal plates and said third and fourth horizontal plates have a common horizontal keyway.

14. The mining machine of claim 11 wherein said first and third horizontal plates and said second and fourth horizontal plates have a common vertical keyway.

15. The mining machine of claim 7 wherein said coal removal means comprise a multitude of pneumatic air hammers for the removal and fine pulverization of coal in order to permit passage of said coal through said vacuum discharge outlet means.

16. The mining machine of claim 7 wherein a fixed plate is provided for anchoring each of the four vertical movement means with respect to the first, second, third and fourth plates.

17. The mining machine of claim 7 wherein said vacuum discharge outlet means is connected with a fan mounted outside of said mine to draw air through a shaft connected with the face of said mine wherein said vacuum is sufficient to withdraw entrained and pulverized coal from said face of said mine.

18. The mining machine of claim 7 wherein said hood-scoop assembly has a coal screw crusher in juxtaposition therewith to further reduce the size of the coal for vacuum transmission of said coal to a location extrinsic from said coal face.

19. A pneumatic coal mining machine which comprises:

(a) a longitudinal mobile chassis having a pressurized air inlet means and a vacuum outlet means at one extreme of said chassis;

(b) pneumatic coal removal and pulverization means at opposite extreme of said chassis to remove coal from a face of coal;

(c) an adjustable hood-scoop situated surrounding the substantially complete perimeter in juxtaposition with respect to said removal and pulverization means, said scoop comprising four independent plates which act in consort to surround said perimeter with respect to said removal and pulverization means; and

(d) a vacuum conveyor means for extraction of substantially all of said coal removed from said face and for removal of indigenous gases created by said coal removal.