GB2265094A

GB2265094A - Wet/dry mixing system

Info

Publication number: GB2265094A
Application number: GB9120253A
Authority: GB
Inventors: M B Baily; S H Stokes
Original assignee: HAMPSHIRE FEEDING SYSTEMS Ltd
Current assignee: HAMPSHIRE FEEDING SYSTEMS Ltd
Priority date: 1991-09-23
Filing date: 1991-09-23
Publication date: 1993-09-22
Also published as: GB9120253D0

Abstract

A mixing system constructed such that, when in operation, the mixing takes place within the unit and only the mixed ingredients can appear out of the unit. The unit can be used with single or multiple dry ingredients and with only one or more liquid ingredients. The unit comprises two tubes (1) and (3) releasably secured to permit disassembly for cleaning etc. the lower tube having two cones (4 and 5). No moving parts are involved nor additional power. The latter provides for a high degree of safety in a wet area. Dry ingredients entering tube (1) fall into swirling liquid below cone (4) that is pumped into inlet (6) to mix and to exit as a slurry from cone (5). <IMAGE>

Description

WET/DRY MIXING SYSTEM This invention relates to a wet and dry mixing system without moving parts.

Mixing systems are well known with either side or centrally mounted motor driven impellers or paddles.

Whilst this is a satisfactory method of mixing while the dry materials are being entered, associated dust, either gets carried around the surrounding area/building, or, if in closed mixing vessel, cloaks the inside of the vessel. This necessitates additional tank cleansing/washing.

With the present invention the mixing takes place within a 'sealed' container without any additional power source or mixer. It produces an immediate high speed mixing without extraneous dust and with minimal splashing.

A specific embodiment of the invention will be now described by way of an example with reference to the accompanying drawing in which: Figure 1 shows the mixer as would be normally mounted Figure 2 shows the view looking upwards into the mixer Figure 3 shows the view looking downwards into the mixer Referring to the drawing the mixer comprises a separable tube, the top section (1) being clear bore, usually with a shut off valve (2) to prevent extraneous materials falling into the mixer section and releasably secured to the lower section by clamps or similar means. The lower section, of the same diameter, has two coned sections fitted (4 and 5) as shown. On the side of the lower section an inlet is fitted (6). Liquid is pumped through the inlet (6) creating a totally wetted area in the lower chamber (3) below the cone (4).

Dry ingredients are entered through the top of the tube (1) and with the valve (2) open, fall immediately into the liquid swirling below the cone (4) there being mixed, and flowing, as a slurry, down through the lower cone (5) and into the receiving vessel (not shown). The three side fingers (7) will prevent any large particles choking the outlet pipe on the bottom cone (5).

For cleaning or washing the mixer the two tubes (1) and (3) are demounted by undoing the clamps (8) thus exposing all parts for cleaning.

To reassemble you reverse the step above.

Claims

1. A wet and dry mixing system comprising of two tubes which form a closed vessel during operation where the mixing of the ingredients take place such that only homergeneous mix appears at the outlet.

2. A wet and dry mixing system as claimed in Claim 1 without moving parts.

3. A wet and dry mixing system as claimed in Claim 1 or Claim 2 without the need for additional power source to create the mixing of the ingredients.

4. A wet and dry mixing system as claimed in Claim 1 or Claim 2 or Claim 3 which by the manner in which the mix is made removes extraneous dust or particulate matter from being released into the atmosphere.