Kiln ring cutting machine
United States Patent 2176238

The invention relates to improved apparatus W n for cutting or loosening the ring of material that lenr builds up within cement kilns and has for its cou primary object to provide apparatus which will the - perform efficiently and which will accomplish its the cutting of the kiln rings with...

Anderson, Otto C.
Application Number:
Publication Date:
Filing Date:
Anderson, Otto C.
Primary Class:
Other Classes:
173/37, 173/44, 173/147, 173/185
International Classes:
F27B7/20; F27D25/00
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The invention relates to improved apparatus W n for cutting or loosening the ring of material that lenr builds up within cement kilns and has for its cou primary object to provide apparatus which will the - perform efficiently and which will accomplish its the cutting of the kiln rings with a minimum wei of time and effort. t In the progress of raw material through the rot kiln it changes from the granular or pulverulent sui l0° condition to the molten condition which it pos- Sa sesses when it leaves the kiln. In the kiln the rig material passes through an intermediate state in re' which it is semi-molten and possesses viscous, th gummy or sticky characteristics. In this state ti 1i' it readily adheres to the lining of the kiln and grows by accretion as the kiln rotates until it tl forms a dam or ring in the kiln which interferes sa with the operation of the kiln by cutting down the at _ f.... f cnmbhustion gases passing through. bi amoUUtLV U.I Therefore it is necessary that the ring be removea periodically. The apparatus of the present in- 0 vention accomplishes this removal efficiently and s] with a minimum of time and effort. o With these and other objects in viewthein- i vention may consist of certain novel features of t construction and operation, as will be more fully 0 described and particularly pointed out in the i: specification, drawing and claim appended hereto. 1 In the drawing which illustrates an embodi- t ment of the invention and wherein like reference characters are used to designate like partsFigure 1 is a side elevational view showing the improved apparatus of the present invention; Figure 2 is a vertical sectional view taken substantially along line 2-2 of Figure 1 and showing the rear of the feeder carriage; Figure 3 is a vertical sectional view taken substantially along line 3-3 of Figure 1; and Figure 4 is a fragmentary plan view taken subL stantially along line 4-4 of Figure 1.

Referring to the drawing, particularly Figure 1, the ring cutting machine of the invention is embodied in a portable carriage 10 consisting of a base II and uprights 12 which journal rollers 13 45 at their lower ends. The portable carriage is suitably anchored to the foundation 14 in the position desired by the rods 15 secured at their upper ends to the uprights 12 and at their lower end to the foundation by means of eye bolts 16. 50 The tool for actually cutting the rings of builtup material from the kiln consists of the plunger 18 having a suitably shaped forward end to adapt the plunger for the purposes described and which is mounted for axial reciprocation within open6 ings 19 formed in the uprights 12 respectively.

-104.07) fen the forward end of the plunger 18 is gthened materially it is found desirable to nterbalance the rear end of the plunger by addition thereto of the portion 20 which at extreme rear end carries a counterbalancing ight 21. For reasons to be presently described is necessary to prevent the plunger 18 from ating and for this purpose a member 22 is tably fixed at its ends as at 23 to the plunger. id member has engagement with the rear up,ht 12 so that said member forms a key with spect to said upright, preventing rotation of e plunger although permitting axial reciprocaon of said plunger.

The mechanism for causing reciprocation of le plunger, whereby forward movement of the Yme will constitute a cutting stroke is driven by i electric motor 24 suitably supported upon the ase I I of the carriage. Said motor drives a reucer 25 which is operatively connected by means f the belt 2'6 with a sprocket wheel 21. A similar procket wheel 28 is mounted at the forward end f the carriage, the said sprocket wheels receivng the endless chain 30 which is thus driven by he electric motor 24 through the instrumentality f the reducer 25 and belt 26. The chain shown n Figure 4 consists of rollers 31 and connecting inks 32. At least one lug 33 is suitably fixed ,o said chain, the function of which will be presently described. Said lug may have a shape such as shown in Figure 3. During horizontal movement of the upper portion of the chain and while the chain is travelling from sprocket 28 to sprocket 21 the same is supported by the bracket 34 suitably supported at its ends by the uprights 12.

The feeder carriage supported by the forward upright 12 consists of forward and rearward plate members 35 and 36, said members being joined by the carriage bolts 31 and 38. These carriage bolts are freely supported by the forward upright 12 and thus movement of said feeder carriage with respect to the upright is possible. Guide rods 39 are provided for the feeder, said rods being suitably secured at their rear end to the rear upright 12 and extending for some distance beyond the forward upright.

At a point substantially intermediate the uprights 12 a collar 40 is fixedly secured to the plunger 18. Each side of the collar is connected to the plate member 35 by means of a flexible chain 41 having interposed between its ends the coil spring 42. It will therefore be seen that when said plunger is moved rearwardly energy will be stored in said coil springs 42 so that upon release the plunger will spring forwardly to complish the cutting operation. Pivoted at to said collar, Figure 3, is a lever 44 which c pends into the path of the stop 33 when the say as movement with chain 30 in a direction t ward the right This will impart movement the plunger in a rearward direction, casing t coil springs 42 to elongate and thus store ener in said spring. It is therefore necessary to r 0o lease the said plunger from the action of the t 33 in order to accomplish the desired cutti movement thereof.

The invention contemplates an adjustable re lease or tripper 45 suitably secured to the rod 4 which is secured at its forward end to the plat member 35. The portion of the rod extendin rearwardly of the forward upright r2 is enclose within a U-shaped guide member 47 which help to maintain the tripper 45 horizontally disposed As shown in Figure 4, ther tripper 45 is provide with a rounded extremity 48 s that the lever 44 immediately upon striking the tripper will be given rotation in a direction outwardly, that is, clockwise, Figure 3, so as to cause disengagement of lever. 44 with respect to the lug 33. As shown in Figure 3, the Plunger 16 is provided with an angularly extending arm 50 connected to the lever 44 by means of the spring 51. Said spring tends to maintain the lever in a vertical depending Position and yieldingly resists clockwise ro: tation of said lever, whereby said rotation is effected only as a result of engagement of said lever with the tripper 45.

In operation of the ring cutting apparatus of the invention the motor and reducer can be adjusted so as to result in the proper speed for the chain 30. Movement of the lug 33 along the bracket 34 will eventually result in engagement with the depending lever 44. Continued movement of the lug will axially move the plunger 18 rearwardly, thereby storing up energy in the coil springs 42. When the depending lever engages the tripper 45 the plunger is released and the same will travel forwardly as a result of said stored up energy with sufficient momentum to cut into the ring of built-up material in the kiln, thereby loosening and breaking down said ring.

2,176,238 ac- A Plurality of lugs may be applied to said chain 43 30 or said drive may be peeded up to increase Se- the work of the Plunger. ee t ne In the event the cutting operations of the o- tlunger do not entirely cutthrough the ring in to the kiln the mechanism can be shifted forwardly he as a result of the adjustability of the feeder Y carriage. Said carriage is suitably connected to e- the feeder screw 52 which has threaded engage. ig ment with the rear upright g2. The screw is 10 sg rotated to vary the osition of the feeder carriage by rotation of the wheel 53 having handles 54 - which is operatively connected with said screw 6 by the gears 55 and 56. It will be seen that by e varying the position of the feeder carriage the 15 g Position of the tripper 45 is likewise varied since d said tripper is fixed to the rod 46 having secures ment to late 35 of said feeder carriage. Thus the changed Position of the tripper will conform P to the advanced work done by the Plunger 18. 20 SThe invention is not to be limited to or by 20 details of construction of the Particular embodiment thereof illustrated by the drawing, as various other forms of the device will of course be apparent to those skilled in the art without de- 25 Parting from the spirit of the invention or the scope of the claim.

What is claimed is: In a kiln ring cutting machine, in combination, a plunger, a frame non-rotatably mounting said 30 Plunger but Permitting reciprocation in the direction of its longitudinal axis, a longitudinally adjustable feeder carriage Provided by said frame, resilient means associated with said plunger and connecting said Plunger to said feeder carriage 35 in a manner whereby movement of the Plunger rearwardly will store up energy in said resilient means, power operated means for causing rearward movement of said Plunger to take place Periodically, and a release member carried by the 40 feeder carriage for releasing said plunger from Said means after predetermined extent of rearward movement has taken place, whereby said Plunger will have a rapid forward thrust to perform a cutting operation. 45 45OTTO C. ANDERSON OTTO C. ANDERSON.