GB2194421A - Fluid injection unit - Google Patents

Abstract

An injection unit comprises a main distribution pipe attached to digging legs (8), carrying injection pipes (7) permitting fluid or slurry from a tank to flow into the ground. The digging legs 8 can also be used as sub soilers for aerating soil without the flow of fluids. The unit can quickly be released from the slurry tanker if not required for long periods of time. <IMAGE>

Description

SPECIFICATION Liquid and slurry injection equipment This invention relates to equipment for injecting slurries and liquids into the ground.

Slurry injection equipment is available at the moment but is very much in its embrionic stage. Slurry injectors now being used are extremely heavy and are connected directly to the rear of farm tractors or directly behind the tanker which contains the liquid slurry.

A great deal of instability has been experienced with the present method, due to the rear drag when the injectors are forced into the ground.

Existing equipment in principle is made up of independent digging legs with injectors attached with separate pipework to each injector, which results in a confusion of flexible pipes.

To enable injection to be carried out, the whole of existing equipment has to be completely lifted and lowered, forcing the injectors into the ground. This operation imposes great strain on the existing hydraulic system fed from the towing vehicle.

According to the present invention there is provided a method of passing liquids through a continuous pipe to which digging legs and injectors are directly fastened, resulting in a complete monolithic constructed unit.

This unit revolves through 90" using the distribution pipe as the axis fixed into bearings.

This equipment is located under a slurry tanker fixed to its steel chassis.

A specific embodiment of the invention will now be described by way of example, with reference to the accompanying drawing in which: Figure 1 Shows in perspective, the tanker chassis 1 with the injection unit in position under.

Figure 2 Illustrates method of passing fluid from the tanker through the unit to the ground.

Figure 3 Shows the unit in travel position now digging.

Figure 4 Shows the unit in travel position digging and injecting fluid.

Referring to the drawing, the injection equipment comprises steel sub-chassis 2 secured at right angle to the tanker chassis 1 for example welded or bolted (not shown). This chassis houses the bearings 3 which carry the distribution pipe 4.

In order to inject fluid into the ground pipe 5 is connected to distribution pipe 4 to allow free flow of fluid from tanker 9 down to the injection pipe 7 which is connected to the digging legs 8. These legs are activated into and out of the ground 12 by hydraulic rams.

The action is created by distribution pipe 4 rotating on its own axis as direction of arrow 11 (Fig. 3). Hydraulic power is taken from existing supply via the towing tractor (not shown 12).

The injector pipe 7 is connected to the digging leg 8. This leg has a chisel shaped digging foot 10 to create a void in the ground to accommodate the liquid.

1. An injection unit comprising a main distribution pipe to which are connected digging legs, carrying injection pipes which allow a continuous flow of fluid from tanker into voids cut in the ground whilst travelling in a forward motion.

2. An injection unit as claimed in Claim 1 whose injection digging legs can be rotated into or out of the ground whilst travelling forward.

3. An injection unit as claimed in Claim 1 or Claim 2 which can operate in a small space due to the rotation of digging legs as opposed to the existing methods of lifting the whole injection unit vertically clear of the ground levels.

4. An injection unit as claimed in Claim 1 or Claim 2 gives better stability to the fluid tanker due to the positioning under the tanker and gives the tractor driver full view of the operation.

5. An injection unit substantially as described herein with reference to Figs. 1-4 of the accompanying drawing.

**WARNING** end of DESC field may overlap start of CLMS **.

Claims (5)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Liquid and slurry injection equipment This invention relates to equipment for injecting slurries and liquids into the ground. Slurry injection equipment is available at the moment but is very much in its embrionic stage. Slurry injectors now being used are extremely heavy and are connected directly to the rear of farm tractors or directly behind the tanker which contains the liquid slurry. A great deal of instability has been experienced with the present method, due to the rear drag when the injectors are forced into the ground. Existing equipment in principle is made up of independent digging legs with injectors attached with separate pipework to each injector, which results in a confusion of flexible pipes. To enable injection to be carried out, the whole of existing equipment has to be completely lifted and lowered, forcing the injectors into the ground. This operation imposes great strain on the existing hydraulic system fed from the towing vehicle. According to the present invention there is provided a method of passing liquids through a continuous pipe to which digging legs and injectors are directly fastened, resulting in a complete monolithic constructed unit. This unit revolves through 90" using the distribution pipe as the axis fixed into bearings. This equipment is located under a slurry tanker fixed to its steel chassis. A specific embodiment of the invention will now be described by way of example, with reference to the accompanying drawing in which: Figure 1 Shows in perspective, the tanker chassis 1 with the injection unit in position under. Figure 2 Illustrates method of passing fluid from the tanker through the unit to the ground. Figure 3 Shows the unit in travel position now digging. Figure 4 Shows the unit in travel position digging and injecting fluid. Referring to the drawing, the injection equipment comprises steel sub-chassis 2 secured at right angle to the tanker chassis 1 for example welded or bolted (not shown). This chassis houses the bearings 3 which carry the distribution pipe 4. In order to inject fluid into the ground pipe 5 is connected to distribution pipe 4 to allow free flow of fluid from tanker 9 down to the injection pipe 7 which is connected to the digging legs 8. These legs are activated into and out of the ground 12 by hydraulic rams. The action is created by distribution pipe 4 rotating on its own axis as direction of arrow 11 (Fig. 3). Hydraulic power is taken from existing supply via the towing tractor (not shown 12). The injector pipe 7 is connected to the digging leg 8. This leg has a chisel shaped digging foot 10 to create a void in the ground to accommodate the liquid. CLAIMS

1. An injection unit comprising a main distribution pipe to which are connected digging legs, carrying injection pipes which allow a continuous flow of fluid from tanker into voids cut in the ground whilst travelling in a forward motion.

2. An injection unit as claimed in Claim 1 whose injection digging legs can be rotated into or out of the ground whilst travelling forward.

3. An injection unit as claimed in Claim 1 or Claim 2 which can operate in a small space due to the rotation of digging legs as opposed to the existing methods of lifting the whole injection unit vertically clear of the ground levels.

4. An injection unit as claimed in Claim 1 or Claim 2 gives better stability to the fluid tanker due to the positioning under the tanker and gives the tractor driver full view of the operation.

5. An injection unit substantially as described herein with reference to Figs. 1-4 of the accompanying drawing.