Patent GB-190518593-A (GB)
Title: Improvements relating to Retorts or other Appliances for Heating or Cooling Solid, Granular or Pasty Materials with or without simultaneous Chemical Treatment of the same with Gases.
Inventor: WETTER JASPER
Filed: 1905-09-14
Granted: 1906-08-16
Abstract: 18,593. Wetter, J., [Besemfelder, E. R.]. Sept. 14. Retorts; mixing gases.-A gas retort, which may be used also for heating, cooling, or treating with gases solid or semi-solid materials, comprises an horizontal or inclined reciprocating tube surrounded by a jacket which moves with the tube. The reciprocation transports the material through the apparatus, and according to the temperature of the gas or liquid passed through the jacket the material is heated or cooled. Gases may be admitted to the outlet end of the retort to serve for oxidizing or otherwise chemically treating the materials in the retort. The apparatus shown in Fig. 1, comprises tubes 5, 9 surrounded by jackets 21, 17. The tube 5 is supplied with coal by means of a feed-screw 1 and a pipe 3, and delivers it through a pipe 7 to a tube 9. and thence through a pipe 11 to a tower 13 constructed as described in Specification No. 13,830, A.D. 1899. Heating-gases are led to the jacket 17 through a tube 15 and pass to the jacket 21 through a tube 19, being finally led off through a tube 23. The jacket 21 is rigidly connected to the tube 5 and is mounted on a frame 25 which is carried by wheels 27 running on rails 29. The tube 9 and jacket 17 are similarly supported. A rapid reciprocation is imparted to the upper frame 25 by means of a spring 34 and a cam 32 which engages a crossbeam 33, the lower frame being reciprocated by means of a cam 36 and a spring 38. The spring effects a quick forward movement, serving to move the material along the retort, followed by a slower return movement effected by the cam. In order to permit reciprocating motion, the pipes 3, 7, 11, &c. are formed with ball-and-socket joints. In the form of apparatus shown in Fig. 3, the tubes 43. 45, having jackets 55, 50, are mounted on wheels 61 and are reciprocated by slotted cranks 64, 66 and connecting-rods 65, 67. The tubes 43, 45 are provided with one sided teeth 76 to cause the material to travel in the desired direction. The ends of the tubes 43, 45 are enlarged and may slide on rings 73, 74 formed on stationary parts 42, 44, 46 of the apparatus, the part 42 being provided with a device 41 for intermittently feeding coal. The heating- gases enter the extremity 49 of the jacket 50 and pass through a flue 53 formed in the part 44 and thence along the jacket 55. The jackets are provided with deflecting-plates 77. The distillation gases pass off through a pipe 60. In a modification of the apparatus, shown in Fig. 3, the tube and jacket are formed rectangular and the open ends of the movable parts are connected with the stationary parts by stuffing-boxes, and the flue 53 is replaced by two pipes which are connected by means of a stuffing-box. Any of the forms of apparatus may be provided with deflecting-plates to cause the heating gases to follow a helical path. In some cases the heating or cooling tubes may be provided in addition to the jacket with an axial core through which a supply of gas or liquid may pass. In some cases the heating or cooling fluid may flow in the same direction as the material.